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| author | Lili Cui <lili.cui@intel.com> | 2022-11-17 15:50:46 +0800 |
|---|---|---|
| committer | Cui,Lili <lili.cui@intel.com> | 2022-11-17 16:27:34 +0800 |
| commit | 156f523f9582f1e6bcce27ece03f2776960408c8 (patch) | |
| tree | b5c6f6263dfff3c0362563cdb6e4adb941c73bf1 | |
| parent | cbe313060cdcf1d857d42a9e16a1a03e5ff89fff (diff) | |
| download | gcc-156f523f9582f1e6bcce27ece03f2776960408c8.zip gcc-156f523f9582f1e6bcce27ece03f2776960408c8.tar.gz gcc-156f523f9582f1e6bcce27ece03f2776960408c8.tar.bz2 | |
x86: Enable 256 move by pieces for ALDERLAKE machine.
gcc/ChangeLog:
* config/i386/x86-tune.def
(X86_TUNE_AVX256_MOVE_BY_PIECES): Add alderlake.
(X86_TUNE_AVX256_STORE_BY_PIECES): Ditto.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pieces-memset-50.c: New test.
| -rw-r--r-- | gcc/config/i386/x86-tune.def | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pieces-memset-50.c | 12 |
2 files changed, 14 insertions, 2 deletions
diff --git a/gcc/config/i386/x86-tune.def b/gcc/config/i386/x86-tune.def index 58e29e7..cd66f33 100644 --- a/gcc/config/i386/x86-tune.def +++ b/gcc/config/i386/x86-tune.def @@ -536,12 +536,12 @@ DEF_TUNE (X86_TUNE_AVX256_OPTIMAL, "avx256_optimal", m_CORE_AVX512) /* X86_TUNE_AVX256_MOVE_BY_PIECES: Optimize move_by_pieces with 256-bit AVX instructions. */ DEF_TUNE (X86_TUNE_AVX256_MOVE_BY_PIECES, "avx256_move_by_pieces", - m_CORE_AVX512) + m_ALDERLAKE | m_CORE_AVX2) /* X86_TUNE_AVX256_STORE_BY_PIECES: Optimize store_by_pieces with 256-bit AVX instructions. */ DEF_TUNE (X86_TUNE_AVX256_STORE_BY_PIECES, "avx256_store_by_pieces", - m_CORE_AVX512) + m_ALDERLAKE | m_CORE_AVX2) /* X86_TUNE_AVX512_MOVE_BY_PIECES: Optimize move_by_pieces with 512-bit AVX instructions. */ diff --git a/gcc/testsuite/gcc.target/i386/pieces-memset-50.c b/gcc/testsuite/gcc.target/i386/pieces-memset-50.c new file mode 100644 index 0000000..c09e7c3 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pieces-memset-50.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=alderlake" } */ + +extern char *dst; + +void +foo (int x) +{ + __builtin_memset (dst, x, 64); +} + +/* { dg-final { scan-assembler-times "vmovdqu\[ \\t\]+\[^\n\]*%ymm" 2 } } */ |