diff options
| author | Michael Kuperstein <michael.m.kuperstein@intel.com> | 2015-01-22 13:07:28 +0000 |
|---|---|---|
| committer | Michael Kuperstein <michael.m.kuperstein@intel.com> | 2015-01-22 13:07:28 +0000 |
| commit | a52ddfa9309ca6999147312a9cddff6ade0f9cf4 (patch) | |
| tree | d52ae7f1d48fd34aa6938f4c2c741c6808e22258 /test/CodeGen/X86/sse41.ll | |
| parent | 331e7db8efcc8f75f74dd0e0348fddd580eecd8f (diff) | |
[DAGCombine] Produce better code for constant splats
This solves PR22276.
Splats of constants would sometimes produce redundant shuffles, sometimes ridiculously so (see the PR for details). Fold these shuffles into BUILD_VECTORs early on instead.
Differential Revision: http://reviews.llvm.org/D7093
Fixed recommit of r226811.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226816 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/sse41.ll')
| -rw-r--r-- | test/CodeGen/X86/sse41.ll | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/CodeGen/X86/sse41.ll b/test/CodeGen/X86/sse41.ll index 3295e2b206b..23b97f002a0 100644 --- a/test/CodeGen/X86/sse41.ll +++ b/test/CodeGen/X86/sse41.ll @@ -1003,14 +1003,14 @@ define void @insertps_pr20411(i32* noalias nocapture %RET) #1 { ; X32-LABEL: insertps_pr20411: ; X32: ## BB#0: ; X32-NEXT: movl {{[0-9]+}}(%esp), %eax -; X32-NEXT: pshufd {{.*#+}} xmm0 = mem[3,1,2,3] +; X32-NEXT: movaps {{.*#+}} xmm0 = [3,3,3,3] ; X32-NEXT: insertps $-36, LCPI49_1+12, %xmm0 ; X32-NEXT: movups %xmm0, (%eax) ; X32-NEXT: retl ; ; X64-LABEL: insertps_pr20411: ; X64: ## BB#0: -; X64-NEXT: pshufd {{.*#+}} xmm0 = mem[3,1,2,3] +; X64-NEXT: movaps {{.*#+}} xmm0 = [3,3,3,3] ; X64-NEXT: insertps $-36, LCPI49_1+{{.*}}(%rip), %xmm0 ; X64-NEXT: movups %xmm0, (%rdi) ; X64-NEXT: retq |