From: Andrew Pinski <apin...@marvell.com>
So the problem is even though there was a csneg with
a zero_extend in the front, there was not one for csinv.
This fixes it by extending that pattern.
OK? Bootstrapped and tested on aarch64-linux-gnu with no regressions.
gcc/ChangeLog:
PR target/101205
* config/aarch64/aarch64.md (csneg3_uxtw_insn): Rename to ...
(*cs<neg_not_cs>3_uxtw_insn4): and extend to NEG_NOT.
gcc/testsuite/ChangeLog:
PR target/101205
* gcc.target/aarch64/csinv-neg-1.c: New test.
---
gcc/config/aarch64/aarch64.md | 6 +-
.../gcc.target/aarch64/csinv-neg-1.c | 112 ++++++++++++++++++
2 files changed, 115 insertions(+), 3 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/aarch64/csinv-neg-1.c
diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index f12a0bebd3d..8cd259fca9c 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -4203,15 +4203,15 @@ (define_insn "*csinv3<mode>_insn"
[(set_attr "type" "csel")]
)
-(define_insn "csneg3_uxtw_insn"
+(define_insn "*cs<neg_not_cs>3_uxtw_insn4"
[(set (match_operand:DI 0 "register_operand" "=r")
(zero_extend:DI
(if_then_else:SI
(match_operand 1 "aarch64_comparison_operation" "")
- (neg:SI (match_operand:SI 2 "register_operand" "r"))
+ (NEG_NOT:SI (match_operand:SI 2 "register_operand" "r"))
(match_operand:SI 3 "aarch64_reg_or_zero" "rZ"))))]
""
- "csneg\\t%w0, %w3, %w2, %M1"
+ "cs<neg_not_cs>\\t%w0, %w3, %w2, %M1"
[(set_attr "type" "csel")]
)
diff --git a/gcc/testsuite/gcc.target/aarch64/csinv-neg-1.c
b/gcc/testsuite/gcc.target/aarch64/csinv-neg-1.c
new file mode 100644
index 00000000000..e528883198d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/csinv-neg-1.c
@@ -0,0 +1,112 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+/*
+** inv1:
+** cmp w0, 0
+** csinv w0, w1, w2, ne
+** ret
+*/
+unsigned long long
+inv1(unsigned a, unsigned b, unsigned c)
+{
+ unsigned t = a ? b : ~c;
+ return t;
+}
+
+/*
+** inv1_local:
+** cmp w0, 0
+** csinv w0, w1, w2, ne
+** ret
+*/
+unsigned long long
+inv1_local(unsigned a, unsigned b, unsigned c)
+{
+ unsigned d = ~c;
+ unsigned t = a ? b : d;
+ return t;
+}
+
+/*
+** inv_zero1:
+** cmp w0, 0
+** csinv w0, wzr, w1, ne
+** ret
+*/
+unsigned long long
+inv_zero1(unsigned a, unsigned b)
+{
+ unsigned t = a ? 0 : ~b;
+ return t;
+}
+
+/*
+** inv_zero2:
+** cmp w0, 0
+** csinv w0, wzr, w1, eq
+** ret
+*/
+unsigned long long
+inv_zero2(unsigned a, unsigned b)
+{
+ unsigned t = a ? ~b : 0;
+ return t;
+}
+
+
+/*
+** inv2:
+** cmp w0, 0
+** csinv w0, w2, w1, eq
+** ret
+*/
+unsigned long long
+inv2(unsigned a, unsigned b, unsigned c)
+{
+ unsigned t = a ? ~b : c;
+ return t;
+}
+
+/*
+** inv2_local:
+** cmp w0, 0
+** csinv w0, w2, w1, eq
+** ret
+*/
+unsigned long long
+inv2_local(unsigned a, unsigned b, unsigned c)
+{
+ unsigned d = ~b;
+ unsigned t = a ? d : c;
+ return t;
+}
+
+/*
+** neg1:
+** cmp w0, 0
+** csneg w0, w1, w2, ne
+** ret
+*/
+unsigned long long
+neg1(unsigned a, unsigned b, unsigned c)
+{
+ unsigned t = a ? b : -c;
+ return t;
+}
+
+
+/*
+** neg2:
+** cmp w0, 0
+** csneg w0, w2, w1, eq
+** ret
+*/
+unsigned long long
+neg2(unsigned a, unsigned b, unsigned c)
+{
+ unsigned t = a ? -b : c;
+ return t;
+}
+
+/* { dg-final { check-function-bodies "**" "" "" } } */
--
2.27.0
