* [pushed] aarch64: Restore generation of SVE UQDEC instructions
@ 2023-01-25 11:26 Richard Sandiford
0 siblings, 0 replies; only message in thread
From: Richard Sandiford @ 2023-01-25 11:26 UTC (permalink / raw)
To: gcc-patches
The addition of TARGET_CSSC meant that we wouldn't generate SVE
UQDEC instructions unless +cssc was also enabled.
Fixes:
- gcc.target/aarch64/sve/slp_4.c
- gcc.target/aarch64/sve/slp_10.c
- gcc.target/aarch64/sve/while_4.c
Tested on aarch64-linux-gnu & pushed.
Richard
gcc/
* config/aarch64/aarch64.md (umax<mode>3): Separate the CNT and CSSC
tests.
---
gcc/config/aarch64/aarch64.md | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md
index e4d7587aac7..0b326d497b4 100644
--- a/gcc/config/aarch64/aarch64.md
+++ b/gcc/config/aarch64/aarch64.md
@@ -4457,8 +4457,9 @@ (define_expand "umax<mode>3"
{
if (aarch64_sve_cnt_immediate (operands[1], <MODE>mode))
std::swap (operands[1], operands[2]);
- else if (!aarch64_sve_cnt_immediate (operands[2], <MODE>mode)
- && TARGET_CSSC)
+ else if (aarch64_sve_cnt_immediate (operands[2], <MODE>mode))
+ ;
+ else if (TARGET_CSSC)
{
if (aarch64_uminmax_immediate (operands[1], <MODE>mode))
std::swap (operands[1], operands[2]);
--
2.25.1
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2023-01-25 11:26 [pushed] aarch64: Restore generation of SVE UQDEC instructions Richard Sandiford
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