; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4 ; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx | FileCheck %s --check-prefixes=AVX1 ; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx2 | FileCheck %s --check-prefixes=AVX2 ; PR90847 - failure to peek through FREEZE(SETCC()) results in VPMOVSMSKB(TRUNC()) instead of VMOVMSKPS define i32 @PR90847(<8 x float> %x) nounwind { ; AVX1-LABEL: PR90847: ; AVX1: # %bb.0: # %entry ; AVX1-NEXT: vshufps {{.*#+}} ymm1 = ymm0[1,0,3,2,5,4,7,6] ; AVX1-NEXT: vminps %ymm1, %ymm0, %ymm1 ; AVX1-NEXT: vshufpd {{.*#+}} ymm2 = ymm1[1,0,3,2] ; AVX1-NEXT: vminps %ymm2, %ymm1, %ymm1 ; AVX1-NEXT: vperm2f128 {{.*#+}} ymm2 = ymm1[2,3,0,1] ; AVX1-NEXT: vminps %ymm2, %ymm1, %ymm1 ; AVX1-NEXT: vcmpeqps %ymm0, %ymm1, %ymm0 ; AVX1-NEXT: vmovmskps %ymm0, %ecx ; AVX1-NEXT: movl $32, %eax ; AVX1-NEXT: rep bsfl %ecx, %eax ; AVX1-NEXT: vzeroupper ; AVX1-NEXT: retq ; ; AVX2-LABEL: PR90847: ; AVX2: # %bb.0: # %entry ; AVX2-NEXT: vshufps {{.*#+}} ymm1 = ymm0[1,0,3,2,5,4,7,6] ; AVX2-NEXT: vminps %ymm1, %ymm0, %ymm1 ; AVX2-NEXT: vshufpd {{.*#+}} ymm2 = ymm1[1,0,3,2] ; AVX2-NEXT: vminps %ymm2, %ymm1, %ymm1 ; AVX2-NEXT: vpermpd {{.*#+}} ymm2 = ymm1[2,3,0,1] ; AVX2-NEXT: vminps %ymm2, %ymm1, %ymm1 ; AVX2-NEXT: vcmpeqps %ymm0, %ymm1, %ymm0 ; AVX2-NEXT: vmovmskps %ymm0, %ecx ; AVX2-NEXT: movl $32, %eax ; AVX2-NEXT: rep bsfl %ecx, %eax ; AVX2-NEXT: vzeroupper ; AVX2-NEXT: retq entry: %shuf1 = shufflevector <8 x float> %x, <8 x float> poison, <8 x i32> %min1 = tail call noundef <8 x float> @llvm.x86.avx.min.ps.256(<8 x float> %x, <8 x float> %shuf1) %shuf2 = shufflevector <8 x float> %min1, <8 x float> poison, <8 x i32> %min2 = tail call noundef <8 x float> @llvm.x86.avx.min.ps.256(<8 x float> %min1, <8 x float> %shuf2) %shuf3 = shufflevector <8 x float> %min2, <8 x float> poison, <8 x i32> %min3 = tail call noundef <8 x float> @llvm.x86.avx.min.ps.256(<8 x float> %min2, <8 x float> %shuf3) %fcmp = fcmp oeq <8 x float> %min3, %x %mask = bitcast <8 x i1> %fcmp to i8 %zext = zext i8 %mask to i32 %cmp = icmp eq i8 %mask, 0 %tz = tail call range(i32 0, 33) i32 @llvm.cttz.i32(i32 %zext, i1 false) %conv = select i1 %cmp, i32 undef, i32 %tz ret i32 %conv }