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| author | Haochen Gui <guihaoc@gcc.gnu.org> | 2023-08-31 13:41:50 +0800 |
|---|---|---|
| committer | Haochen Gui <guihaoc@gcc.gnu.org> | 2023-08-31 13:41:50 +0800 |
| commit | 946b8967b905257ac9f140225db744c9a6ab91be (patch) | |
| tree | 0b178ab2668f5ddc96bb009cae050c0a65e7c7c8 /gcc | |
| parent | 7ed0732273a65caa747f1cbf5f0443ee536116db (diff) | |
| download | gcc-946b8967b905257ac9f140225db744c9a6ab91be.zip gcc-946b8967b905257ac9f140225db744c9a6ab91be.tar.gz gcc-946b8967b905257ac9f140225db744c9a6ab91be.tar.bz2 | |
rs6000: call vector load/store with length only on 64-bit Power10
gcc/
PR target/96762
* config/rs6000/rs6000-string.cc (expand_block_move): Call vector
load/store with length only on 64-bit Power10.
gcc/testsuite/
PR target/96762
* gcc.target/powerpc/pr96762.c: New.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/rs6000/rs6000-string.cc | 14 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/powerpc/pr96762.c | 13 |
2 files changed, 23 insertions, 4 deletions
diff --git a/gcc/config/rs6000/rs6000-string.cc b/gcc/config/rs6000/rs6000-string.cc index 75e6f88..44a946c 100644 --- a/gcc/config/rs6000/rs6000-string.cc +++ b/gcc/config/rs6000/rs6000-string.cc @@ -2811,11 +2811,17 @@ expand_block_move (rtx operands[], bool might_overlap) gen_func.mov = gen_vsx_movv2di_64bit; } else if (TARGET_BLOCK_OPS_UNALIGNED_VSX - && TARGET_POWER10 && bytes < 16 + /* Only use lxvl/stxvl on 64bit POWER10. */ + && TARGET_POWER10 + && TARGET_64BIT + && bytes < 16 && orig_bytes > 16 - && !(bytes == 1 || bytes == 2 - || bytes == 4 || bytes == 8) - && (align >= 128 || !STRICT_ALIGNMENT)) + && !(bytes == 1 + || bytes == 2 + || bytes == 4 + || bytes == 8) + && (align >= 128 + || !STRICT_ALIGNMENT)) { /* Only use lxvl/stxvl if it could replace multiple ordinary loads+stores. Also don't use it unless we likely already diff --git a/gcc/testsuite/gcc.target/powerpc/pr96762.c b/gcc/testsuite/gcc.target/powerpc/pr96762.c new file mode 100644 index 0000000..a59deb4 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/pr96762.c @@ -0,0 +1,13 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -mdejagnu-cpu=power10" } */ + +/* Verify there is no ICE on ilp32 env. */ + +extern void foo (char *); + +void +bar (void) +{ + char zj[] = "XXXXXXXXXXXXXXXX"; + foo (zj); +} |