diff options
| author | Elena Demikhovsky <elena.demikhovsky@intel.com> | 2013-01-03 08:48:33 +0000 |
|---|---|---|
| committer | Elena Demikhovsky <elena.demikhovsky@intel.com> | 2013-01-03 08:48:33 +0000 |
| commit | 5f2f06d2d9294ff01e9c6e08aaf0b6e97863e63a (patch) | |
| tree | 194931473c192220b4036fbe197cd36884fe826f /llvm/test/CodeGen/X86/avx-trunc.ll | |
| parent | 820aac1c783e39c863bb99e33d5c98fd7f06c8e4 (diff) | |
| download | bcm5719-llvm-5f2f06d2d9294ff01e9c6e08aaf0b6e97863e63a.tar.gz bcm5719-llvm-5f2f06d2d9294ff01e9c6e08aaf0b6e97863e63a.zip | |
Simplified TRUNCATE operation that comes after SETCC. It is possible since SETCC result is 0 or -1.
Added a test.
llvm-svn: 171467
Diffstat (limited to 'llvm/test/CodeGen/X86/avx-trunc.ll')
| -rwxr-xr-x | llvm/test/CodeGen/X86/avx-trunc.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/avx-trunc.ll b/llvm/test/CodeGen/X86/avx-trunc.ll index d0077366444..aa186a05f21 100755 --- a/llvm/test/CodeGen/X86/avx-trunc.ll +++ b/llvm/test/CodeGen/X86/avx-trunc.ll @@ -13,3 +13,18 @@ define <8 x i16> @trunc_32_16(<8 x i32> %A) nounwind uwtable readnone ssp{ ret <8 x i16>%B } +define <8 x i16> @trunc_after_setcc(<8 x float> %a, <8 x float> %b, <8 x float> %c, <8 x float> %d) { +; CHECK: trunc_after_setcc +; CHECK: vcmpltps +; CHECK-NOT: vextract +; CHECK: vcmpltps +; CHECK-NEXT: vandps +; CHECK-NEXT: vandps +; CHECK: ret + %res1 = fcmp olt <8 x float> %a, %b + %res2 = fcmp olt <8 x float> %c, %d + %andr = and <8 x i1>%res1, %res2 + %ex = zext <8 x i1> %andr to <8 x i16> + ret <8 x i16>%ex +} + |
