RE: [PATCH 04/35] arm: improve tests and fix vdwdupq*

[Kyrylo Tkachov via Gcc-patches]

> -----Original Message-----
> From: Andrea Corallo <andrea.cora...@arm.com>
> Sent: Thursday, November 17, 2022 4:38 PM
> To: gcc-patches@gcc.gnu.org
> Cc: Kyrylo Tkachov <kyrylo.tkac...@arm.com>; Richard Earnshaw
> <richard.earns...@arm.com>; Andrea Corallo <andrea.cora...@arm.com>
> Subject: [PATCH 04/35] arm: improve tests and fix vdwdupq*
> 
> gcc/ChangeLog:
> 
>       * config/arm/mve.md (mve_vdwdupq_m_wb_u<mode>_insn): Fix
> spacing.
> 
> gcc/testsuite/ChangeLog:
> 
>       * gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u16.c : Improve test.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u32.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u8.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u16.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u32.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u8.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_n_u16.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_n_u32.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_n_u8.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_wb_u16.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_wb_u32.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_wb_u8.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u16.c: Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u32.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u8.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u16.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u32.c : Likewise.
>       * gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u8.c : Likewise.

Ok.
Thanks,
Kyrill

> ---
>  gcc/config/arm/mve.md                         |  2 +-
>  .../arm/mve/intrinsics/vdwdupq_m_n_u16.c      | 44 ++++++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_m_n_u32.c      | 46 ++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_m_n_u8.c       | 46 ++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_m_wb_u16.c     | 50 ++++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_m_wb_u32.c     | 48 +++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_m_wb_u8.c      | 50 ++++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_n_u16.c        | 32 ++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_n_u32.c        | 32 ++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_n_u8.c         | 32 ++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_wb_u16.c       | 32 ++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_wb_u32.c       | 32 ++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_wb_u8.c        | 32 ++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_x_n_u16.c      | 42 ++++++++++++++--
>  .../arm/mve/intrinsics/vdwdupq_x_n_u32.c      | 46 ++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_x_n_u8.c       | 46 ++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_x_wb_u16.c     | 50 ++++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_x_wb_u32.c     | 46 ++++++++++++++---
>  .../arm/mve/intrinsics/vdwdupq_x_wb_u8.c      | 50 ++++++++++++++++---
>  19 files changed, 655 insertions(+), 103 deletions(-)
> 
> diff --git a/gcc/config/arm/mve.md b/gcc/config/arm/mve.md
> index 1215f845388..58ffe03c499 100644
> --- a/gcc/config/arm/mve.md
> +++ b/gcc/config/arm/mve.md
> @@ -9195,7 +9195,7 @@ (define_insn
> "mve_vdwdupq_m_wb_u<mode>_insn"
>        VDWDUPQ_M))
>    ]
>    "TARGET_HAVE_MVE"
> -  "vpst\;\tvdwdupt.u%#<V_sz_elem>\t%q2, %3, %R4, %5"
> +  "vpst\;vdwdupt.u%#<V_sz_elem>\t%q2, %3, %R4, %5"
>    [(set_attr "type" "mve_move")
>     (set_attr "length""8")])
> 
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u16.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u16.c
> index 5303fd7d361..8f53f5ef0cb 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u16.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u16.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo (uint16x8_t inactive, uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 1, p);
> +  return vdwdupq_m_n_u16 (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo1 (uint16x8_t inactive, uint32_t a, uint32_t b, mve_pred16_t p)
>  {
>    return vdwdupq_m (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint16x8_t
> +foo2 (uint16x8_t inactive, mve_pred16_t p)
> +{
> +  return vdwdupq_m (inactive, 1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u32.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u32.c
> index 9f22bd7f852..30e971fb733 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u32.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u32.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo (uint32x4_t inactive, uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 4, p);
> +  return vdwdupq_m_n_u32 (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo1 (uint32x4_t inactive, uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 4, p);
> +  return vdwdupq_m (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint32x4_t
> +foo2 (uint32x4_t inactive, mve_pred16_t p)
> +{
> +  return vdwdupq_m (inactive, 1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u8.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u8.c
> index 0591e731958..0abc19a2318 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u8.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_n_u8.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo (uint8x16_t inactive, uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 4, p);
> +  return vdwdupq_m_n_u8 (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo1 (uint8x16_t inactive, uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 4, p);
> +  return vdwdupq_m (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint8x16_t
> +foo2 (uint8x16_t inactive, mve_pred16_t p)
> +{
> +  return vdwdupq_m (inactive, 1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git
> a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u16.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u16.c
> index e4e7b47e082..b3e6affbf8f 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u16.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u16.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
> -foo (uint16x8_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo (uint16x8_t inactive, uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 8, p);
> +  return vdwdupq_m_wb_u16 (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
> -foo1 (uint16x8_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo1 (uint16x8_t inactive, uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 8, p);
> +  return vdwdupq_m (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint16x8_t
> +foo2 (uint16x8_t inactive, mve_pred16_t p)
> +{
> +  return vdwdupq_m (inactive, 1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git
> a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u32.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u32.c
> index 42917dc9886..60c52b0d850 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u32.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u32.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
> -foo (uint32x4_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo (uint32x4_t inactive, uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 1, p);
> +  return vdwdupq_m_wb_u32 (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
> -foo1 (uint32x4_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo1 (uint32x4_t inactive, uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
>    return vdwdupq_m (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint32x4_t
> +foo2 (uint32x4_t inactive, mve_pred16_t p)
> +{
> +  return vdwdupq_m (inactive, 1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u8.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u8.c
> index 32c3153ffb3..459321a7984 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u8.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_m_wb_u8.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
> -foo (uint8x16_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo (uint8x16_t inactive, uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 2, p);
> +  return vdwdupq_m_wb_u8 (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
> -foo1 (uint8x16_t inactive, uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo1 (uint8x16_t inactive, uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_m (inactive, a, b, 2, p);
> +  return vdwdupq_m (inactive, a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint8x16_t
> +foo2 (uint8x16_t inactive, mve_pred16_t p)
> +{
> +  return vdwdupq_m (inactive, 1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u16.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u16.c
> index 725a6e4bc0e..9f76dbf35eb 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u16.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u16.c
> @@ -1,21 +1,45 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vdwdup.u16      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo (uint32_t a, uint32_t b)
>  {
> -  return vdwdupq_n_u16 (a, b, 2);
> +  return vdwdupq_n_u16 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u16"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vdwdup.u16      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo1 (uint32_t a, uint32_t b)
>  {
> -  return vdwdupq_u16 (a, b, 2);
> +  return vdwdupq_u16 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u16"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vdwdup.u16      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint16x8_t
> +foo2 ()
> +{
> +  return vdwdupq_u16 (1, 1, 1);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u32.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u32.c
> index 6ceaadb984d..962f766b496 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u32.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u32.c
> @@ -1,21 +1,45 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vdwdup.u32      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo (uint32_t a, uint32_t b)
>  {
> -  return vdwdupq_n_u32 (a, b, 8);
> +  return vdwdupq_n_u32 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u32"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vdwdup.u32      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo1 (uint32_t a, uint32_t b)
>  {
> -  return vdwdupq_u32 (a, b, 8);
> +  return vdwdupq_u32 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u32"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vdwdup.u32      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint32x4_t
> +foo2 ()
> +{
> +  return vdwdupq_u32 (1, 1, 1);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u8.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u8.c
> index a1712e418be..c73b1b69661 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u8.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_n_u8.c
> @@ -1,21 +1,45 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vdwdup.u8       q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo (uint32_t a, uint32_t b)
>  {
> -  return vdwdupq_n_u8 (a, b, 4);
> +  return vdwdupq_n_u8 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u8"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vdwdup.u8       q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo1 (uint32_t a, uint32_t b)
>  {
> -  return vdwdupq_u8 (a, b, 4);
> +  return vdwdupq_u8 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u8"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vdwdup.u8       q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint8x16_t
> +foo2 ()
> +{
> +  return vdwdupq_u8 (1, 1, 1);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u16.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u16.c
> index 0164ea9502c..3b1968d78aa 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u16.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u16.c
> @@ -1,21 +1,45 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vdwdup.u16      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo (uint32_t *a, uint32_t b)
>  {
> -  return vdwdupq_wb_u16 (a, b, 2);
> +  return vdwdupq_wb_u16 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u16"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vdwdup.u16      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo1 (uint32_t *a, uint32_t b)
>  {
> -  return vdwdupq_u16 (a, b, 2);
> +  return vdwdupq_u16 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u16"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vdwdup.u16      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint16x8_t
> +foo2 ()
> +{
> +  return vdwdupq_u16 (1, 1, 1);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u32.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u32.c
> index 7681371b016..8554f62ee6b 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u32.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u32.c
> @@ -1,21 +1,45 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vdwdup.u32      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo (uint32_t *a, uint32_t b)
>  {
> -  return vdwdupq_wb_u32 (a, b, 8);
> +  return vdwdupq_wb_u32 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u32"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vdwdup.u32      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo1 (uint32_t *a, uint32_t b)
>  {
> -  return vdwdupq_u32 (a, b, 8);
> +  return vdwdupq_u32 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u32"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vdwdup.u32      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint32x4_t
> +foo2 ()
> +{
> +  return vdwdupq_u32 (1, 1, 1);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u8.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u8.c
> index 6f60bb09b24..eb91a80daf5 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u8.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_wb_u8.c
> @@ -1,21 +1,45 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vdwdup.u8       q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo (uint32_t *a, uint32_t b)
>  {
> -  return vdwdupq_wb_u8 (a, b, 4);
> +  return vdwdupq_wb_u8 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u8"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vdwdup.u8       q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo1 (uint32_t *a, uint32_t b)
>  {
> -  return vdwdupq_u8 (a, b, 4);
> +  return vdwdupq_u8 (a, b, 1);
>  }
> 
> -/* { dg-final { scan-assembler "vdwdup.u8"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vdwdup.u8       q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint8x16_t
> +foo2 ()
> +{
> +  return vdwdupq_u8 (1, 1, 1);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u16.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u16.c
> index ce975267531..9c0fd1e253c 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u16.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u16.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo (uint32_t a, uint32_t b, mve_pred16_t p)
>  {
>    return vdwdupq_x_n_u16 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
>  foo1 (uint32_t a, uint32_t b, mve_pred16_t p)
>  {
>    return vdwdupq_x_u16 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint16x8_t
> +foo2 (mve_pred16_t p)
> +{
> +  return vdwdupq_x_u16 (1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u32.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u32.c
> index 9ed75d292d8..3107e2fdbbe 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u32.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u32.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo (uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_n_u32 (a, b, 4, p);
> +  return vdwdupq_x_n_u32 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
>  foo1 (uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_u32 (a, b, 4, p);
> +  return vdwdupq_x_u32 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint32x4_t
> +foo2 (mve_pred16_t p)
> +{
> +  return vdwdupq_x_u32 (1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u8.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u8.c
> index 3705094c4df..03d01e0dd43 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u8.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_n_u8.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo (uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_n_u8 (a, b, 4, p);
> +  return vdwdupq_x_n_u8 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
>  foo1 (uint32_t a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_u8 (a, b, 4, p);
> +  return vdwdupq_x_u8 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint8x16_t
> +foo2 (mve_pred16_t p)
> +{
> +  return vdwdupq_x_u8 (1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git
> a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u16.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u16.c
> index caf744d7255..f7dca660c03 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u16.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u16.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
> -foo (uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo (uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_wb_u16 (a, b, 8, p);
> +  return vdwdupq_x_wb_u16 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint16x8_t
> -foo1 (uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo1 (uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_u16 (a, b, 8, p);
> +  return vdwdupq_x_u16 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u16"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u16     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint16x8_t
> +foo2 (mve_pred16_t p)
> +{
> +  return vdwdupq_x_u16 (1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git
> a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u32.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u32.c
> index 8c8be86bce6..032ae94e8c3 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u32.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u32.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
> -foo (uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo (uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
>    return vdwdupq_x_wb_u32 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint32x4_t
> -foo1 (uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo1 (uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
>    return vdwdupq_x_u32 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u32"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u32     q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint32x4_t
> +foo2 (mve_pred16_t p)
> +{
> +  return vdwdupq_x_u32 (1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> diff --git a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u8.c
> b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u8.c
> index 1c6ef4ed33f..5d238a7a865 100644
> --- a/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u8.c
> +++ b/gcc/testsuite/gcc.target/arm/mve/intrinsics/vdwdupq_x_wb_u8.c
> @@ -1,23 +1,57 @@
>  /* { 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"
> 
> +/*
> +**foo:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
> -foo (uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo (uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_wb_u8 (a, b, 2, p);
> +  return vdwdupq_x_wb_u8 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> 
> +/*
> +**foo1:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
>  uint8x16_t
> -foo1 (uint32_t * a, uint32_t b, mve_pred16_t p)
> +foo1 (uint32_t *a, uint32_t b, mve_pred16_t p)
>  {
> -  return vdwdupq_x_u8 (a, b, 2, p);
> +  return vdwdupq_x_u8 (a, b, 1, p);
>  }
> 
> -/* { dg-final { scan-assembler "vpst" } } */
> -/* { dg-final { scan-assembler "vdwdupt.u8"  }  } */
> +/*
> +**foo2:
> +**   ...
> +**   vmsr    p0, (?:ip|fp|r[0-9]+)(?:        @.*|)
> +**   ...
> +**   vpst(?: @.*|)
> +**   ...
> +**   vdwdupt.u8      q[0-9]+, (?:ip|fp|r[0-9]+), (?:ip|fp|r[0-9]+), 
> #[0-9]+(?:
>       @.*|)
> +**   ...
> +*/
> +uint8x16_t
> +foo2 (mve_pred16_t p)
> +{
> +  return vdwdupq_x_u8 (1, 1, 1, p);
> +}
> +
> +/* { dg-final { scan-assembler-not "__ARM_undef" } } */
> \ No newline at end of file
> --
> 2.25.1