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| author | Christophe Lyon <christophe.lyon@linaro.org> | 2023-05-31 09:23:16 +0000 |
|---|---|---|
| committer | Christophe Lyon <christophe.lyon@linaro.org> | 2023-05-31 13:26:49 +0000 |
| commit | 070d651c6db37c3658be0a5274f44265045428e6 (patch) | |
| tree | a94d21554cf1509dd6be41b16ce3410a6541a2ea /gcc | |
| parent | 5a07b3b8bb9ce20849d6269e1601ead0ad3b8f75 (diff) | |
| download | gcc-070d651c6db37c3658be0a5274f44265045428e6.zip gcc-070d651c6db37c3658be0a5274f44265045428e6.tar.gz gcc-070d651c6db37c3658be0a5274f44265045428e6.tar.bz2 | |
aarch64: Add pattern for bswap + rotate [PR 110039]
After commit g:d8545fb2c71683f407bfd96706103297d4d6e27b, we missed a
pattern to match the new GIMPLE form.
With this patch, gcc.target/aarch64/rev16_2.c passes again.
2023-05-31 Christophe Lyon <christophe.lyon@linaro.org>
PR target/110039
gcc/
* config/aarch64/aarch64.md (aarch64_rev16si2_alt3): New
pattern.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/aarch64/aarch64.md | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/config/aarch64/aarch64.md b/gcc/config/aarch64/aarch64.md index f26d11c..c2ba726 100644 --- a/gcc/config/aarch64/aarch64.md +++ b/gcc/config/aarch64/aarch64.md @@ -6249,6 +6249,16 @@ [(set_attr "type" "rev")] ) +;; Similar pattern to match (rotate (bswap) 16) +(define_insn "aarch64_rev16si2_alt3" + [(set (match_operand:SI 0 "register_operand" "=r") + (rotate:SI (bswap:SI (match_operand:SI 1 "register_operand" "r")) + (const_int 16)))] + "" + "rev16\\t%w0, %w1" + [(set_attr "type" "rev")] +) + ;; zero_extend version of above (define_insn "*bswapsi2_uxtw" [(set (match_operand:DI 0 "register_operand" "=r") |