[commited trunk 2/9] arm: Fix vstrwq* backend + testsuite

Stam Markianos-Wright via Gcc-patches Thu, 18 May 2023 04:00:53 -0700

From: Andrea Corallo <andrea.cora...@arm.com>

Hi all,


this patch fixes the vstrwq* MVE instrinsics failing to emit the
correct sequence of instruction due to a missing predicate. Also the
immediate range is fixed to be multiples of 2 up between [-252, 252].

Best Regards

  Andrea

gcc/ChangeLog:

        * config/arm/constraints.md (mve_vldrd_immediate): Move it to
        predicates.md.
        (Ri): Move constraint definition from predicates.md.
        (Rl): Define new constraint.
        * config/arm/mve.md (mve_vstrwq_scatter_base_wb_p_<supf>v4si): Add
        missing constraint.
        (mve_vstrwq_scatter_base_wb_p_fv4sf): Add missing Up constraint
        for op 1, use mve_vstrw_immediate predicate and Rl constraint for
        op 2. Fix asm output spacing.
        (mve_vstrdq_scatter_base_wb_p_<supf>v2di): Add missing constraint.
        * config/arm/predicates.md (Ri) Move constraint to constraints.md
        (mve_vldrd_immediate): Move it from
        constraints.md.
        (mve_vstrw_immediate): New predicate.

gcc/testsuite/ChangeLog:

        * gcc.target/arm/mve/intrinsics/vstrwq_f32.c: Use
        check-function-bodies instead of scan-assembler checks.  Use
        extern "C" for C++ testing.
        * gcc.target/arm/mve/intrinsics/vstrwq_p_f32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_p_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_p_u32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_f32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_f32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_u32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_u32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_f32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_f32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_s32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_u32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_u32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_f32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_f32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_u32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_s32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_u32.c: Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_f32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_f32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_s32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_u32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_s32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_u32.c: 
Likewise.
        * gcc.target/arm/mve/intrinsics/vstrwq_u32.c: Likewise.
---
 gcc/config/arm/constraints.md                 | 20 ++++++++--
 gcc/config/arm/mve.md                         | 10 ++---
 gcc/config/arm/predicates.md                  | 14 +++----
 .../arm/mve/intrinsics/vstrwq_f32.c           | 32 ++++++++++++---
 .../arm/mve/intrinsics/vstrwq_p_f32.c         | 40 ++++++++++++++++---
 .../arm/mve/intrinsics/vstrwq_p_s32.c         | 40 ++++++++++++++++---
 .../arm/mve/intrinsics/vstrwq_p_u32.c         | 40 ++++++++++++++++---
 .../arm/mve/intrinsics/vstrwq_s32.c           | 32 ++++++++++++---
 .../mve/intrinsics/vstrwq_scatter_base_f32.c  | 28 +++++++++++--
 .../intrinsics/vstrwq_scatter_base_p_f32.c    | 36 +++++++++++++++--
 .../intrinsics/vstrwq_scatter_base_p_s32.c    | 36 +++++++++++++++--
 .../intrinsics/vstrwq_scatter_base_p_u32.c    | 36 +++++++++++++++--
 .../mve/intrinsics/vstrwq_scatter_base_s32.c  | 28 +++++++++++--
 .../mve/intrinsics/vstrwq_scatter_base_u32.c  | 28 +++++++++++--
 .../intrinsics/vstrwq_scatter_base_wb_f32.c   | 32 ++++++++++++---
 .../intrinsics/vstrwq_scatter_base_wb_p_f32.c | 40 ++++++++++++++++---
 .../intrinsics/vstrwq_scatter_base_wb_p_s32.c | 40 ++++++++++++++++---
 .../intrinsics/vstrwq_scatter_base_wb_p_u32.c | 40 ++++++++++++++++---
 .../intrinsics/vstrwq_scatter_base_wb_s32.c   | 32 ++++++++++++---
 .../intrinsics/vstrwq_scatter_base_wb_u32.c   | 32 ++++++++++++---
 .../intrinsics/vstrwq_scatter_offset_f32.c    | 32 ++++++++++++---
 .../intrinsics/vstrwq_scatter_offset_p_f32.c  | 40 ++++++++++++++++---
 .../intrinsics/vstrwq_scatter_offset_p_s32.c  | 40 ++++++++++++++++---
 .../intrinsics/vstrwq_scatter_offset_p_u32.c  | 40 ++++++++++++++++---
 .../intrinsics/vstrwq_scatter_offset_s32.c    | 32 ++++++++++++---
 .../intrinsics/vstrwq_scatter_offset_u32.c    | 32 ++++++++++++---
 .../vstrwq_scatter_shifted_offset_f32.c       | 32 ++++++++++++---
 .../vstrwq_scatter_shifted_offset_p_f32.c     | 40 ++++++++++++++++---
 .../vstrwq_scatter_shifted_offset_p_s32.c     | 40 ++++++++++++++++---
 .../vstrwq_scatter_shifted_offset_p_u32.c     | 40 ++++++++++++++++---
 .../vstrwq_scatter_shifted_offset_s32.c       | 32 ++++++++++++---
 .../vstrwq_scatter_shifted_offset_u32.c       | 32 ++++++++++++---
 .../arm/mve/intrinsics/vstrwq_u32.c           | 32 ++++++++++++---
 33 files changed, 922 insertions(+), 178 deletions(-)

diff --git a/gcc/config/arm/constraints.md b/gcc/config/arm/constraints.md
index 504cd938b26..05a4ebbdd67 100644
--- a/gcc/config/arm/constraints.md
+++ b/gcc/config/arm/constraints.md
@@ -102,10 +102,6 @@ (define_constraint "Rg"
        (match_test "TARGET_HAVE_MVE && ((ival == 1) || (ival == 2)
                                       || (ival == 4) || (ival == 8))")))
 
-;; True if the immediate is multiple of 8 and in range of -/+ 1016 for MVE.
-(define_predicate "mve_vldrd_immediate"
-  (match_test "satisfies_constraint_Ri (op)"))
-
 (define_register_constraint "t" "TARGET_32BIT ? VFP_LO_REGS : NO_REGS"
  "The VFP registers @code{s0}-@code{s31}.")
 
@@ -574,6 +570,22 @@ (define_constraint "US"
  (match_code "symbol_ref")
 )
 
+;; True if the immediate is the range +/- 1016 and multiple of 8 for MVE.
+(define_constraint "Ri"
+  "@internal In Thumb-2 state a constant is multiple of 8 and in range
+   of -/+ 1016 for MVE"
+  (and (match_code "const_int")
+       (match_test "TARGET_HAVE_MVE && (-1016 <= ival) && (ival <= 1016)
+                   && ((ival % 8) == 0)")))
+
+;; True if the immediate is multiple of 2 and in range of -/+ 252 for MVE.
+(define_constraint "Rl"
+  "@internal In Thumb-2 state a constant is multiple of 2 and in range
+   of -/+ 252 for MVE"
+  (and (match_code "const_int")
+       (match_test "TARGET_HAVE_MVE && (-252 <= ival) && (ival <= 252)
+                   && ((ival % 2) == 0)")))
+
 (define_memory_constraint "Uz"
  "@internal
   A memory access that is accessible as an LDC/STC operand"
diff --git a/gcc/config/arm/mve.md b/gcc/config/arm/mve.md
index 85d701a66b3..96dac5b02ec 100644
--- a/gcc/config/arm/mve.md
+++ b/gcc/config/arm/mve.md
@@ -5677,7 +5677,7 @@ (define_insn "mve_vstrwq_scatter_base_wb_p_<supf>v4si"
                [(match_operand:V4SI 1 "s_register_operand" "0")
                 (match_operand:SI 2 "mve_vldrd_immediate" "Ri")
                 (match_operand:V4SI 3 "s_register_operand" "w")
-                (match_operand:V4BI 4 "vpr_register_operand")]
+                (match_operand:V4BI 4 "vpr_register_operand" "Up")]
        VSTRWSBWBQ))
    (set (match_operand:V4SI 0 "s_register_operand" "=w")
        (unspec:V4SI [(match_dup 1) (match_dup 2)]
@@ -5726,9 +5726,9 @@ (define_insn "mve_vstrwq_scatter_base_wb_p_fv4sf"
  [(set (mem:BLK (scratch))
        (unspec:BLK
                [(match_operand:V4SI 1 "s_register_operand" "0")
-                (match_operand:SI 2 "mve_vldrd_immediate" "Ri")
+                (match_operand:SI 2 "mve_vstrw_immediate" "Rl")
                 (match_operand:V4SF 3 "s_register_operand" "w")
-                (match_operand:V4BI 4 "vpr_register_operand")]
+                (match_operand:V4BI 4 "vpr_register_operand" "Up")]
        VSTRWQSBWB_F))
    (set (match_operand:V4SI 0 "s_register_operand" "=w")
        (unspec:V4SI [(match_dup 1) (match_dup 2)]
@@ -5740,7 +5740,7 @@ (define_insn "mve_vstrwq_scatter_base_wb_p_fv4sf"
    ops[0] = operands[1];
    ops[1] = operands[2];
    ops[2] = operands[3];
-   output_asm_insn ("vpst\;\tvstrwt.u32\t%q2, [%q0, %1]!",ops);
+   output_asm_insn ("vpst\;vstrwt.u32\t%q2, [%q0, %1]!",ops);
    return "";
 }
   [(set_attr "length" "8")])
@@ -5779,7 +5779,7 @@ (define_insn "mve_vstrdq_scatter_base_wb_p_<supf>v2di"
                [(match_operand:V2DI 1 "s_register_operand" "0")
                 (match_operand:SI 2 "mve_vldrd_immediate" "Ri")
                 (match_operand:V2DI 3 "s_register_operand" "w")
-                (match_operand:V2QI 4 "vpr_register_operand")]
+                (match_operand:V2QI 4 "vpr_register_operand" "Up")]
         VSTRDSBWBQ))
    (set (match_operand:V2DI 0 "s_register_operand" "=w")
        (unspec:V2DI [(match_dup 1) (match_dup 2)]
diff --git a/gcc/config/arm/predicates.md b/gcc/config/arm/predicates.md
index 8e235f63ee6..622a491482b 100644
--- a/gcc/config/arm/predicates.md
+++ b/gcc/config/arm/predicates.md
@@ -73,13 +73,13 @@ (define_predicate "mve_imm_32"
 (define_predicate "mve_imm_selective_upto_8"
   (match_test "satisfies_constraint_Rg (op)"))
 
-;; True if the immediate is the range +/- 1016 and multiple of 8 for MVE.
-(define_constraint "Ri"
-  "@internal In Thumb-2 state a constant is multiple of 8 and in range
-   of -/+ 1016 for MVE"
-  (and (match_code "const_int")
-       (match_test "TARGET_HAVE_MVE && (-1016 <= ival) && (ival <= 1016)
-                   && ((ival % 8) == 0)")))
+;; True if the immediate is multiple of 8 and in range of -/+ 1016 for MVE.
+(define_predicate "mve_vldrd_immediate"
+  (match_test "satisfies_constraint_Ri (op)"))
+
+;; True if the immediate is multiple of 2 and in range of -/+ 252 for MVE.
+(define_predicate "mve_vstrw_immediate"
+  (match_test "satisfies_constraint_Rl (op)"))
 
 ; Predicate for stack protector guard's address in
 ; stack_protect_combined_set_insn and stack_protect_combined_test_insn patterns
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_f32.c
index 8aa04fcbdee..e92ecb0f6bc 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_f32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo (float32_t * addr, float32x4_t value)
+foo (float32_t *base, float32x4_t value)
 {
-  vstrwq_f32 (addr, value);
+  return vstrwq_f32 (base, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo1 (float32_t * addr, float32x4_t value)
+foo1 (float32_t *base, float32x4_t value)
 {
-  vstrwq (addr, value);
+  return vstrwq (base, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_f32.c
index 411de6414f7..f1992a67736 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_f32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo (float32_t * addr, float32x4_t value, mve_pred16_t p)
+foo (float32_t *base, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_p_f32 (addr, value, p);
+  return vstrwq_p_f32 (base, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo1 (float32_t * addr, float32x4_t value, mve_pred16_t p)
+foo1 (float32_t *base, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_p (addr, value, p);
+  return vstrwq_p (base, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_s32.c
index 3b042814d27..a00aeabb9fe 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_s32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo (int32_t * addr, int32x4_t value, mve_pred16_t p)
+foo (int32_t *base, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_p_s32 (addr, value, p);
+  return vstrwq_p_s32 (base, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo1 (int32_t * addr, int32x4_t value, mve_pred16_t p)
+foo1 (int32_t *base, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_p (addr, value, p);
+  return vstrwq_p (base, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_u32.c
index b9e92204c88..05fded8aac8 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_p_u32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo (uint32_t * addr, uint32x4_t value, mve_pred16_t p)
+foo (uint32_t *base, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_p_u32 (addr, value, p);
+  return vstrwq_p_u32 (base, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32_t * addr, uint32x4_t value, mve_pred16_t p)
+foo1 (uint32_t *base, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_p (addr, value, p);
+  return vstrwq_p (base, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_s32.c
index c7b3d91a972..b2a184f3c66 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_s32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo (int32_t * addr, int32x4_t value)
+foo (int32_t *base, int32x4_t value)
 {
-  vstrwq_s32 (addr, value);
+  return vstrwq_s32 (base, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo1 (int32_t * addr, int32x4_t value)
+foo1 (int32_t *base, int32x4_t value)
 {
-  vstrwq (addr, value);
+  return vstrwq (base, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_f32.c
index f8b56917295..c80e8d9cdc5 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_f32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo (uint32x4_t addr, float32x4_t value)
 {
-  vstrwq_scatter_base_f32 (addr, 8, value);
+  return vstrwq_scatter_base_f32 (addr, 0, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.u32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo1 (uint32x4_t addr, float32x4_t value)
 {
-  vstrwq_scatter_base (addr, 8, value);
+  return vstrwq_scatter_base (addr, 0, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.u32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_f32.c
index 4a75e6503e1..237843c0661 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_f32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo (uint32x4_t addr, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_p_f32 (addr, 8, value, p);
+  return vstrwq_scatter_base_p_f32 (addr, 0, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.u32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo1 (uint32x4_t addr, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_p (addr, 8, value, p);
+  return vstrwq_scatter_base_p (addr, 0, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.u32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_s32.c
index 5ac4f300a7d..5f4f4a09664 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_s32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo (uint32x4_t addr, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_p_s32 (addr, 8, value, p);
+  return vstrwq_scatter_base_p_s32 (addr, 0, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.u32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo1 (uint32x4_t addr, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_p (addr, 8, value, p);
+  return vstrwq_scatter_base_p (addr, 0, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.u32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_u32.c
index e564f26b9c7..8c5cf63f861 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_u32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo (uint32x4_t addr, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_p_u32 (addr, 8, value, p);
+  return vstrwq_scatter_base_p_u32 (addr, 0, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.u32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo1 (uint32x4_t addr, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_p (addr, 8, value, p);
+  return vstrwq_scatter_base_p (addr, 0, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.u32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_s32.c
index 5bba36db5cb..5208cf4f808 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_s32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo (uint32x4_t addr, int32x4_t value)
 {
-  vstrwq_scatter_base_s32 (addr, 8, value);
+  return vstrwq_scatter_base_s32 (addr, 0, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.u32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo1 (uint32x4_t addr, int32x4_t value)
 {
-  vstrwq_scatter_base (addr, 8, value);
+  return vstrwq_scatter_base (addr, 0, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.u32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_u32.c
index 1dcbb5a739c..e728db2b9f1 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_u32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo (uint32x4_t addr, uint32x4_t value)
 {
-  vstrwq_scatter_base_u32 (addr, 8, value);
+  return vstrwq_scatter_base_u32 (addr, 0, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.u32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\](?:        @.*|)
+**     ...
+*/
 void
 foo1 (uint32x4_t addr, uint32x4_t value)
 {
-  vstrwq_scatter_base (addr, 8, value);
+  return vstrwq_scatter_base (addr, 0, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.u32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_f32.c
index b2cc6e555ae..e481191aa57 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_f32.c
@@ -1,19 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo (uint32x4_t * addr, const int offset, float32x4_t value)
+foo (uint32x4_t *addr, float32x4_t value)
 {
-  vstrwq_scatter_base_wb_f32 (addr, 8, value);
+  return vstrwq_scatter_base_wb_f32 (addr, 0, value);
 }
 
+
+/*
+**foo1:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32x4_t * addr, const int offset, float32x4_t value)
+foo1 (uint32x4_t *addr, float32x4_t value)
 {
-  vstrwq_scatter_base_wb (addr, 8, value);
+  return vstrwq_scatter_base_wb (addr, 0, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler-times "vstrw.u32\tq\[0-9\]+, \\\[q\[0-9\]+, 
#\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_f32.c
index 4befd49d7b9..8d217d46230 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_f32.c
@@ -1,19 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo (uint32x4_t * addr, const int offset, float32x4_t value, mve_pred16_t p)
+foo (uint32x4_t *addr, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_wb_p_f32 (addr, 8, value, p);
+  return vstrwq_scatter_base_wb_p_f32 (addr, 0, value, p);
 }
 
+
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32x4_t * addr, const int offset, float32x4_t value, mve_pred16_t p)
+foo1 (uint32x4_t *addr, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_wb_p (addr, 8, value, p);
+  return vstrwq_scatter_base_wb_p (addr, 0, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler-times "vstrwt.u32\tq\[0-9\]+, \\\[q\[0-9\]+, 
#\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_s32.c
index dfb1827c4f0..afc47adcd7f 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_s32.c
@@ -1,19 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo (uint32x4_t * addr, const int offset, int32x4_t value, mve_pred16_t p)
+foo (uint32x4_t *addr, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_wb_p_s32 (addr, 8, value, p);
+  return vstrwq_scatter_base_wb_p_s32 (addr, 0, value, p);
 }
 
+
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32x4_t * addr, const int offset, int32x4_t value, mve_pred16_t p)
+foo1 (uint32x4_t *addr, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_wb_p (addr, 8, value, p);
+  return vstrwq_scatter_base_wb_p (addr, 0, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler-times "vstrwt.u32\tq\[0-9\]+, \\\[q\[0-9\]+, 
#\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_u32.c
index 4eb78c600be..65191c2f1ed 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_p_u32.c
@@ -1,19 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo (uint32x4_t * addr, const int offset, uint32x4_t value, mve_pred16_t p)
+foo (uint32x4_t *addr, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_wb_p_u32 (addr, 8, value, p);
+  return vstrwq_scatter_base_wb_p_u32 (addr, 0, value, p);
 }
 
+
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.u32      q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32x4_t * addr, const int offset, uint32x4_t value, mve_pred16_t p)
+foo1 (uint32x4_t *addr, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_base_wb_p (addr, 8, value, p);
+  return vstrwq_scatter_base_wb_p (addr, 0, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler-times "vstrwt.u32\tq\[0-9\]+, \\\[q\[0-9\]+, 
#\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_s32.c
index 618dbaf5aa6..b6a9f6cd1f4 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_s32.c
@@ -1,19 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo (uint32x4_t * addr, const int offset, int32x4_t value)
+foo (uint32x4_t *addr, int32x4_t value)
 {
-  vstrwq_scatter_base_wb_s32 (addr, 8, value);
+  return vstrwq_scatter_base_wb_s32 (addr, 0, value);
 }
 
+
+/*
+**foo1:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32x4_t * addr, const int offset, int32x4_t value)
+foo1 (uint32x4_t *addr, int32x4_t value)
 {
-  vstrwq_scatter_base_wb (addr, 8, value);
+  return vstrwq_scatter_base_wb (addr, 0, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler-times "vstrw.u32\tq\[0-9\]+, \\\[q\[0-9\]+, 
#\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_u32.c
index 912a4590cf5..81a278f4e2b 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_wb_u32.c
@@ -1,19 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo (uint32x4_t * addr, uint32x4_t value)
+foo (uint32x4_t *addr, uint32x4_t value)
 {
-  vstrwq_scatter_base_wb_u32 (addr, 8, value);
+  return vstrwq_scatter_base_wb_u32 (addr, 0, value);
 }
 
+
+/*
+**foo1:
+**     ...
+**     vstrw.u32       q[0-9]+, \[q[0-9]+, #[0-9]+\]!(?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32x4_t * addr, uint32x4_t value)
+foo1 (uint32x4_t *addr, uint32x4_t value)
 {
-  vstrwq_scatter_base_wb (addr, 8, value);
+  return vstrwq_scatter_base_wb (addr, 0, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler-times "vstrw.u32\tq\[0-9\]+, \\\[q\[0-9\]+, 
#\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_f32.c
index c14d3ce607b..b81df68aa21 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_f32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo (float32_t * base, uint32x4_t offset, float32x4_t value)
+foo (float32_t *base, uint32x4_t offset, float32x4_t value)
 {
-  vstrwq_scatter_offset_f32 (base, offset, value);
+  return vstrwq_scatter_offset_f32 (base, offset, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo1 (float32_t * base, uint32x4_t offset, float32x4_t value)
+foo1 (float32_t *base, uint32x4_t offset, float32x4_t value)
 {
-  vstrwq_scatter_offset (base, offset, value);
+  return vstrwq_scatter_offset (base, offset, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_f32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_f32.c
index 115be56ec00..8aee42f76a3 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_f32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_f32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo (float32_t * base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
+foo (float32_t *base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_offset_p_f32 (base, offset, value, p);
+  return vstrwq_scatter_offset_p_f32 (base, offset, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo1 (float32_t * base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
+foo1 (float32_t *base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_offset_p (base, offset, value, p);
+  return vstrwq_scatter_offset_p (base, offset, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_s32.c
index 48652af3cff..9c74ae7a8d8 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_s32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo (int32_t * base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
+foo (int32_t *base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_offset_p_s32 (base, offset, value, p);
+  return vstrwq_scatter_offset_p_s32 (base, offset, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo1 (int32_t * base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
+foo1 (int32_t *base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_offset_p (base, offset, value, p);
+  return vstrwq_scatter_offset_p (base, offset, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_u32.c
index dcd42ec453f..015a202b548 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_u32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo (uint32_t * base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
+foo (uint32_t *base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_offset_p_u32 (base, offset, value, p);
+  return vstrwq_scatter_offset_p_u32 (base, offset, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo1 (uint32_t * base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
+foo1 (uint32_t *base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_offset_p (base, offset, value, p);
+  return vstrwq_scatter_offset_p (base, offset, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_s32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_s32.c
index 04672e5a4aa..df373111b78 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_s32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_s32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo (int32_t * base, uint32x4_t offset, int32x4_t value)
+foo (int32_t *base, uint32x4_t offset, int32x4_t value)
 {
-  vstrwq_scatter_offset_s32 (base, offset, value);
+  return vstrwq_scatter_offset_s32 (base, offset, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo1 (int32_t * base, uint32x4_t offset, int32x4_t value)
+foo1 (int32_t *base, uint32x4_t offset, int32x4_t value)
 {
-  vstrwq_scatter_offset (base, offset, value);
+  return vstrwq_scatter_offset (base, offset, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_u32.c
index e3d312550c6..a74696ca273 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_u32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo (uint32_t * base, uint32x4_t offset, uint32x4_t value)
+foo (uint32_t *base, uint32x4_t offset, uint32x4_t value)
 {
-  vstrwq_scatter_offset_u32 (base, offset, value);
+  return vstrwq_scatter_offset_u32 (base, offset, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+\](?:      @.*|)
+**     ...
+*/
 void
-foo1 (uint32_t * base, uint32x4_t offset, uint32x4_t value)
+foo1 (uint32_t *base, uint32x4_t offset, uint32x4_t value)
 {
-  vstrwq_scatter_offset (base, offset, value);
+  return vstrwq_scatter_offset (base, offset, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_f32.c
 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_f32.c
index b20c4c7ed3a..1c9b29a57b8 100644
--- 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_f32.c
+++ 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_f32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo (float32_t * base, uint32x4_t offset, float32x4_t value)
+foo (float32_t *base, uint32x4_t offset, float32x4_t value)
 {
-  vstrwq_scatter_shifted_offset_f32 (base, offset, value);
+  return vstrwq_scatter_shifted_offset_f32 (base, offset, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo1 (float32_t * base, uint32x4_t offset, float32x4_t value)
+foo1 (float32_t *base, uint32x4_t offset, float32x4_t value)
 {
-  vstrwq_scatter_shifted_offset (base, offset, value);
+  return vstrwq_scatter_shifted_offset (base, offset, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_f32.c
 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_f32.c
index 1682f702dc6..08e1572854e 100644
--- 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_f32.c
+++ 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_f32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_fp_ok } */
 /* { dg-add-options arm_v8_1m_mve_fp } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo (float32_t * base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
+foo (float32_t *base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_shifted_offset_p_f32 (base, offset, value, p);
+  return vstrwq_scatter_shifted_offset_p_f32 (base, offset, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo1 (float32_t * base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
+foo1 (float32_t *base, uint32x4_t offset, float32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_shifted_offset_p (base, offset, value, p);
+  return vstrwq_scatter_shifted_offset_p (base, offset, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_s32.c
 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_s32.c
index eef6ea6e196..2b8f8a7d61f 100644
--- 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_s32.c
+++ 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_s32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo (int32_t * base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
+foo (int32_t *base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_shifted_offset_p_s32 (base, offset, value, p);
+  return vstrwq_scatter_shifted_offset_p_s32 (base, offset, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo1 (int32_t * base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
+foo1 (int32_t *base, uint32x4_t offset, int32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_shifted_offset_p (base, offset, value, p);
+  return vstrwq_scatter_shifted_offset_p (base, offset, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_u32.c
 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_u32.c
index b11e7e04dc4..3e4e87bf79a 100644
--- 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_u32.c
+++ 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_u32.c
@@ -1,21 +1,49 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo (uint32_t * base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
+foo (uint32_t *base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_shifted_offset_p_u32 (base, offset, value, p);
+  return vstrwq_scatter_shifted_offset_p_u32 (base, offset, value, p);
 }
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
+**     ...
+**     vpst(?: @.*|)
+**     ...
+**     vstrwt.32       q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo1 (uint32_t * base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
+foo1 (uint32_t *base, uint32x4_t offset, uint32x4_t value, mve_pred16_t p)
 {
-  vstrwq_scatter_shifted_offset_p (base, offset, value, p);
+  return vstrwq_scatter_shifted_offset_p (base, offset, value, p);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrwt.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_s32.c
 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_s32.c
index 8ac25c47554..7f25490a69a 100644
--- 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_s32.c
+++ 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_s32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo (int32_t * base, uint32x4_t offset, int32x4_t value)
+foo (int32_t *base, uint32x4_t offset, int32x4_t value)
 {
-  vstrwq_scatter_shifted_offset_s32 (base, offset, value);
+  return vstrwq_scatter_shifted_offset_s32 (base, offset, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo1 (int32_t * base, uint32x4_t offset, int32x4_t value)
+foo1 (int32_t *base, uint32x4_t offset, int32x4_t value)
 {
-  vstrwq_scatter_shifted_offset (base, offset, value);
+  return vstrwq_scatter_shifted_offset (base, offset, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_u32.c
 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_u32.c
index 1ce0ddacc7a..a96220c4f6e 100644
--- 
a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_u32.c
+++ 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_u32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo (uint32_t * base, uint32x4_t offset, uint32x4_t value)
+foo (uint32_t *base, uint32x4_t offset, uint32x4_t value)
 {
-  vstrwq_scatter_shifted_offset_u32 (base, offset, value);
+  return vstrwq_scatter_shifted_offset_u32 (base, offset, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+), q[0-9]+, uxtw #2\](?:     
@.*|)
+**     ...
+*/
 void
-foo1 (uint32_t * base, uint32x4_t offset, uint32x4_t value)
+foo1 (uint32_t *base, uint32x4_t offset, uint32x4_t value)
 {
-  vstrwq_scatter_shifted_offset (base, offset, value);
+  return vstrwq_scatter_shifted_offset (base, offset, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_u32.c 
b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_u32.c
index 4aec9935b84..df554af79a6 100644
--- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_u32.c
+++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vstrwq_u32.c
@@ -1,21 +1,41 @@
 /* { dg-require-effective-target arm_v8_1m_mve_ok } */
 /* { dg-add-options arm_v8_1m_mve } */
 /* { dg-additional-options "-O2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
 
 #include "arm_mve.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+**foo:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo (uint32_t * addr, uint32x4_t value)
+foo (uint32_t *base, uint32x4_t value)
 {
-  vstrwq_u32 (addr, value);
+  return vstrwq_u32 (base, value);
 }
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
 
+/*
+**foo1:
+**     ...
+**     vstrw.32        q[0-9]+, \[(?:ip|fp|r[0-9]+)\](?:       @.*|)
+**     ...
+*/
 void
-foo1 (uint32_t * addr, uint32x4_t value)
+foo1 (uint32_t *base, uint32x4_t value)
 {
-  vstrwq (addr, value);
+  return vstrwq (base, value);
+}
+
+#ifdef __cplusplus
 }
+#endif
 
-/* { dg-final { scan-assembler "vstrw.32"  }  } */
+/* { dg-final { scan-assembler-not "__ARM_undef" } } */
-- 
2.25.1

[commited trunk 2/9] arm: Fix vstrwq* backend + testsuite

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