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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-10-19 11:53:48 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-10-19 11:53:48 +0000 |
| commit | 6ada70d1b55b9efb8b0603575a0b86e14f049553 (patch) | |
| tree | 58433e616ace9a6d38daceaeaf5d33353d6b80c4 /llvm/test/CodeGen/X86/scalar-int-to-fp.ll | |
| parent | d5367db95c4295b088bf9ae3cf99e24d8bf7e249 (diff) | |
| download | bcm5719-llvm-6ada70d1b55b9efb8b0603575a0b86e14f049553.tar.gz bcm5719-llvm-6ada70d1b55b9efb8b0603575a0b86e14f049553.zip | |
[X86][SSE] LowerUINT_TO_FP_i64 - only use HADDPD for size/fast-hops
We were always generating a single source HADDPD, but really we should only do this if shouldUseHorizontalOp says its a good idea.
Differential Revision: https://reviews.llvm.org/D69175
llvm-svn: 375341
Diffstat (limited to 'llvm/test/CodeGen/X86/scalar-int-to-fp.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/scalar-int-to-fp.ll | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/X86/scalar-int-to-fp.ll b/llvm/test/CodeGen/X86/scalar-int-to-fp.ll index 580da1535e3..31faa728ce2 100644 --- a/llvm/test/CodeGen/X86/scalar-int-to-fp.ll +++ b/llvm/test/CodeGen/X86/scalar-int-to-fp.ll @@ -610,8 +610,9 @@ define double @u64_to_d(i64 %a) nounwind { ; AVX512F_32-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero ; AVX512F_32-NEXT: vunpcklps {{.*#+}} xmm0 = xmm0[0],mem[0],xmm0[1],mem[1] ; AVX512F_32-NEXT: vsubpd {{\.LCPI.*}}, %xmm0, %xmm0 -; AVX512F_32-NEXT: vhaddpd %xmm0, %xmm0, %xmm0 -; AVX512F_32-NEXT: vmovlpd %xmm0, (%esp) +; AVX512F_32-NEXT: vpermilpd {{.*#+}} xmm1 = xmm0[1,0] +; AVX512F_32-NEXT: vaddsd %xmm0, %xmm1, %xmm0 +; AVX512F_32-NEXT: vmovsd %xmm0, (%esp) ; AVX512F_32-NEXT: fldl (%esp) ; AVX512F_32-NEXT: movl %ebp, %esp ; AVX512F_32-NEXT: popl %ebp |
