diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2006-11-10 22:09:17 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2006-11-10 22:09:17 +0000 |
| commit | 915026cdc3165739e60d9349e76c6efcd8a2c9ec (patch) | |
| tree | 706d7a526e5a26be903054191a9c4b8337e84fa6 /llvm/lib | |
| parent | 5b725a71a9462bfe7706b4f1f495bc413503d41e (diff) | |
| download | bcm5719-llvm-915026cdc3165739e60d9349e76c6efcd8a2c9ec.tar.gz bcm5719-llvm-915026cdc3165739e60d9349e76c6efcd8a2c9ec.zip | |
Add a note.
llvm-svn: 31650
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/README-SSE.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/README-SSE.txt b/llvm/lib/Target/X86/README-SSE.txt index 5c7722da535..2685956dc1a 100644 --- a/llvm/lib/Target/X86/README-SSE.txt +++ b/llvm/lib/Target/X86/README-SSE.txt @@ -551,3 +551,9 @@ void test4(vectorfloat *F, float *f) { Apply the same transformation that merged four float into a single 128-bit load to loads from constant pool. + +//===---------------------------------------------------------------------===// + +Floating point max / min are commutable when -enable-unsafe-fp-path is +specified. We should turn int_x86_sse_max_ss and X86ISD::FMIN etc. into other +nodes which are selected to max / min instructions that are marked commutable. |
