diff options
| -rw-r--r-- | lib/Target/X86/README.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/Target/X86/README.txt b/lib/Target/X86/README.txt index bfff3dd0c1..ffb68194b1 100644 --- a/lib/Target/X86/README.txt +++ b/lib/Target/X86/README.txt @@ -765,3 +765,22 @@ _test: A Mac OS X IA-32 specific ABI bug wrt returning value > 8 bytes: http://llvm.org/bugs/show_bug.cgi?id=729 + +//===---------------------------------------------------------------------===// + +#include <emmintrin.h> + +void test(__m128 *res, __m128 *A) { + *res = _mm_shuffle_ps(*A, *A, 0xF0); +} + +We should emit + shufps $240, (%eax), %xmm0 +instead of + pshufd $240, (%eax), %xmm0 + +//===---------------------------------------------------------------------===// + +X86RegisterInfo::copyRegToReg() returns X86::MOVAPSrr for VR128. Is it possible +to choose between movaps, movapd, and movdqa based on types of source and +destination? |