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| author | Jakub Jelinek <jakub@redhat.com> | 2024-09-25 20:17:11 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2024-09-25 20:19:28 +0200 |
| commit | cc40795d8956d78e719a6acc83d5abad7032a6c3 (patch) | |
| tree | 279e4ffa8ed01fbb78caf5d1dc345b7babd5afb1 /gcc/gdbhooks.py | |
| parent | c79cc30862d7255ca15884aa956d1ccfa279d86a (diff) | |
| download | gcc-cc40795d8956d78e719a6acc83d5abad7032a6c3.zip gcc-cc40795d8956d78e719a6acc83d5abad7032a6c3.tar.gz gcc-cc40795d8956d78e719a6acc83d5abad7032a6c3.tar.bz2 | |
i386: Add GENERIC and GIMPLE folders of __builtin_ia32_{min,max}* [PR116738]
The following patch adds GENERIC and GIMPLE folders for various
x86 min/max builtins.
As discussed, these builtins have effectively x < y ? x : y
(or x > y ? x : y) behavior.
The GENERIC folding is done if all the (relevant) arguments are
constants (such as VECTOR_CST for vectors) and is done because
the GIMPLE folding can't easily handle masking, rounding and the
ss/sd cases (in a way that it would be pattern recognized back to the
corresponding instructions). The GIMPLE folding is also done just
for TARGET_SSE4 or later when optimizing, otherwise it is apparently
not matched back.
2024-09-25 Jakub Jelinek <jakub@redhat.com>
PR target/116738
* config/i386/i386.cc (ix86_fold_builtin): Handle
IX86_BUILTIN_M{IN,AX}{S,P}{S,H,D}*.
(ix86_gimple_fold_builtin): Handle IX86_BUILTIN_M{IN,AX}P{S,H,D}*.
* gcc.target/i386/avx512f-pr116738-1.c: New test.
* gcc.target/i386/avx512f-pr116738-2.c: New test.
Diffstat (limited to 'gcc/gdbhooks.py')
0 files changed, 0 insertions, 0 deletions