diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/test/CodeGen/X86/known-signbits-vector.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/known-signbits-vector.ll b/llvm/test/CodeGen/X86/known-signbits-vector.ll index 12dfdc025ce..6922bf0afcb 100644 --- a/llvm/test/CodeGen/X86/known-signbits-vector.ll +++ b/llvm/test/CodeGen/X86/known-signbits-vector.ll @@ -71,3 +71,31 @@ define <4 x float> @signbits_sext_v4i64_sitofp_v4f32(i8 signext %a0, i16 signext %9 = sitofp <4 x i64> %8 to <4 x float> ret <4 x float> %9 } + +define float @signbits_ashr_extract_sitofp(<2 x i64> %a0) nounwind { +; X32-LABEL: signbits_ashr_extract_sitofp: +; X32: # BB#0: +; X32-NEXT: pushl %eax +; X32-NEXT: vpsrad $31, %xmm0, %xmm1 +; X32-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,1,3,3] +; X32-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3],xmm0[4,5],xmm1[6,7] +; X32-NEXT: vmovd %xmm0, %eax +; X32-NEXT: vcvtsi2ssl %eax, %xmm2, %xmm0 +; X32-NEXT: vmovss %xmm0, (%esp) +; X32-NEXT: flds (%esp) +; X32-NEXT: popl %eax +; X32-NEXT: retl +; +; X64-LABEL: signbits_ashr_extract_sitofp: +; X64: # BB#0: +; X64-NEXT: vpsrad $31, %xmm0, %xmm1 +; X64-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,1,3,3] +; X64-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3],xmm0[4,5],xmm1[6,7] +; X64-NEXT: vmovq %xmm0, %rax +; X64-NEXT: vcvtsi2ssl %eax, %xmm2, %xmm0 +; X64-NEXT: retq + %1 = ashr <2 x i64> %a0, <i64 32, i64 32> + %2 = extractelement <2 x i64> %1, i32 0 + %3 = sitofp i64 %2 to float + ret float %3 +} |
