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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-02-15 17:41:33 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-02-15 17:41:33 +0000 |
| commit | da25d5c7b60aa32adc3e4175718aac5ac87cc0f7 (patch) | |
| tree | 3d0f71f6490eddb2c45cac798488e8f1b2b14602 /llvm/test/CodeGen/X86/shrink_vmul.ll | |
| parent | f9e7b3caba516685a52137878170e36e7e0fda51 (diff) | |
| download | bcm5719-llvm-da25d5c7b60aa32adc3e4175718aac5ac87cc0f7.tar.gz bcm5719-llvm-da25d5c7b60aa32adc3e4175718aac5ac87cc0f7.zip | |
[X86][SSE] Propagate undef upper elements from scalar_to_vector during shuffle combining
Only do this for integer types currently - floats types (in particular insertps) load folding often fails with this.
llvm-svn: 295208
Diffstat (limited to 'llvm/test/CodeGen/X86/shrink_vmul.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/shrink_vmul.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/X86/shrink_vmul.ll b/llvm/test/CodeGen/X86/shrink_vmul.ll index d7e99afb2f5..930af226b95 100644 --- a/llvm/test/CodeGen/X86/shrink_vmul.ll +++ b/llvm/test/CodeGen/X86/shrink_vmul.ll @@ -449,7 +449,7 @@ define void @mul_2xi16_sext_zext(i8* nocapture readonly %a, i8* nocapture readon ; CHECK: # BB#0: # %entry ; CHECK-NEXT: movq {{.*}}(%rip), %rax ; CHECK-NEXT: movd {{.*#+}} xmm0 = mem[0],zero,zero,zero -; CHECK-NEXT: punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3] +; CHECK-NEXT: pshuflw {{.*#+}} xmm0 = xmm0[0,0,2,1,4,5,6,7] ; CHECK-NEXT: psrad $16, %xmm0 ; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,1,1,3] ; CHECK-NEXT: movd {{.*#+}} xmm1 = mem[0],zero,zero,zero @@ -835,7 +835,7 @@ define void @mul_2xi16_varconst4(i8* nocapture readonly %a, i64 %index) { ; CHECK: # BB#0: # %entry ; CHECK-NEXT: movq {{.*}}(%rip), %rax ; CHECK-NEXT: movd {{.*#+}} xmm0 = mem[0],zero,zero,zero -; CHECK-NEXT: punpcklwd {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3] +; CHECK-NEXT: pshuflw {{.*#+}} xmm0 = xmm0[0,0,2,1,4,5,6,7] ; CHECK-NEXT: psrad $16, %xmm0 ; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,1,1,3] ; CHECK-NEXT: movl $32768, %ecx # imm = 0x8000 |
