; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-apple-macosx10.6.6 -mattr=+sse4.1 | FileCheck %s %0 = type { double } %union.anon = type { float } define i32 @double_signbit(double %d1) nounwind uwtable readnone ssp { ; CHECK-LABEL: double_signbit: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: movsd %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movsd %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movmskpd %xmm0, %eax ; CHECK-NEXT: andl $1, %eax ; CHECK-NEXT: retq entry: %__x.addr.i = alloca double, align 8 %__u.i = alloca %0, align 8 store double %d1, ptr %__x.addr.i, align 8 store double %d1, ptr %__u.i, align 8 %tmp = bitcast double %d1 to i64 %tmp1 = lshr i64 %tmp, 63 %shr.i = trunc i64 %tmp1 to i32 ret i32 %shr.i } define i32 @double_add_signbit(double %d1, double %d2) nounwind uwtable readnone ssp { ; CHECK-LABEL: double_add_signbit: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: addsd %xmm1, %xmm0 ; CHECK-NEXT: movsd %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movsd %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movmskpd %xmm0, %eax ; CHECK-NEXT: andl $1, %eax ; CHECK-NEXT: retq entry: %__x.addr.i = alloca double, align 8 %__u.i = alloca %0, align 8 %add = fadd double %d1, %d2 store double %add, ptr %__x.addr.i, align 8 store double %add, ptr %__u.i, align 8 %tmp = bitcast double %add to i64 %tmp1 = lshr i64 %tmp, 63 %shr.i = trunc i64 %tmp1 to i32 ret i32 %shr.i } define i32 @float_signbit(float %f1) nounwind uwtable readnone ssp { ; CHECK-LABEL: float_signbit: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: movss %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movss %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movmskps %xmm0, %eax ; CHECK-NEXT: andl $1, %eax ; CHECK-NEXT: retq entry: %__x.addr.i = alloca float, align 4 %__u.i = alloca %union.anon, align 4 store float %f1, ptr %__x.addr.i, align 4 store float %f1, ptr %__u.i, align 4 %0 = bitcast float %f1 to i32 %shr.i = lshr i32 %0, 31 ret i32 %shr.i } define i32 @float_add_signbit(float %f1, float %f2) nounwind uwtable readnone ssp { ; CHECK-LABEL: float_add_signbit: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: addss %xmm1, %xmm0 ; CHECK-NEXT: movss %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movss %xmm0, -{{[0-9]+}}(%rsp) ; CHECK-NEXT: movmskps %xmm0, %eax ; CHECK-NEXT: andl $1, %eax ; CHECK-NEXT: retq entry: %__x.addr.i = alloca float, align 4 %__u.i = alloca %union.anon, align 4 %add = fadd float %f1, %f2 store float %add, ptr %__x.addr.i, align 4 store float %add, ptr %__u.i, align 4 %0 = bitcast float %add to i32 %shr.i = lshr i32 %0, 31 ret i32 %shr.i } ; PR11570 define void @float_call_signbit(double %n) { ; CHECK-LABEL: float_call_signbit: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: movmskpd %xmm0, %edi ; CHECK-NEXT: andl $1, %edi ; CHECK-NEXT: jmp _float_call_signbit_callee ## TAILCALL entry: %t0 = bitcast double %n to i64 %tobool.i.i.i.i = icmp slt i64 %t0, 0 tail call void @float_call_signbit_callee(i1 zeroext %tobool.i.i.i.i) ret void } declare void @float_call_signbit_callee(i1 zeroext) ; Known zeros define i32 @knownbits_v2f64(<2 x double> %x) { ; CHECK-LABEL: knownbits_v2f64: ; CHECK: ## %bb.0: ; CHECK-NEXT: movmskpd %xmm0, %eax ; CHECK-NEXT: retq %1 = tail call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> %x) %2 = and i32 %1, 3 ret i32 %2 } ; Don't demand any movmsk signbits -> zero define i32 @demandedbits_v16i8(<16 x i8> %x) { ; CHECK-LABEL: demandedbits_v16i8: ; CHECK: ## %bb.0: ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: retq %1 = tail call i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8> %x) %2 = and i32 %1, 65536 ret i32 %2 } ; Simplify demanded vector elts define i32 @demandedelts_v4f32(<4 x float> %x) { ; CHECK-LABEL: demandedelts_v4f32: ; CHECK: ## %bb.0: ; CHECK-NEXT: movmskps %xmm0, %eax ; CHECK-NEXT: andl $1, %eax ; CHECK-NEXT: retq %1 = shufflevector <4 x float> %x, <4 x float> undef, <4 x i32> zeroinitializer %2 = tail call i32 @llvm.x86.sse.movmsk.ps(<4 x float> %1) %3 = and i32 %2, 1 ret i32 %3 } ; rdar://10247336 ; movmskp{s|d} only set low 4/2 bits, high bits are known zero define i32 @t1(<4 x float> %x, ptr nocapture %indexTable) nounwind uwtable readonly ssp { ; CHECK-LABEL: t1: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: movmskps %xmm0, %eax ; CHECK-NEXT: movl (%rdi,%rax,4), %eax ; CHECK-NEXT: retq entry: %0 = tail call i32 @llvm.x86.sse.movmsk.ps(<4 x float> %x) nounwind %idxprom = sext i32 %0 to i64 %arrayidx = getelementptr inbounds i32, ptr %indexTable, i64 %idxprom %1 = load i32, ptr %arrayidx, align 4 ret i32 %1 } define i32 @t2(<4 x float> %x, ptr nocapture %indexTable) nounwind uwtable readonly ssp { ; CHECK-LABEL: t2: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: movmskpd %xmm0, %eax ; CHECK-NEXT: movl (%rdi,%rax,4), %eax ; CHECK-NEXT: retq entry: %0 = bitcast <4 x float> %x to <2 x double> %1 = tail call i32 @llvm.x86.sse2.movmsk.pd(<2 x double> %0) nounwind %idxprom = sext i32 %1 to i64 %arrayidx = getelementptr inbounds i32, ptr %indexTable, i64 %idxprom %2 = load i32, ptr %arrayidx, align 4 ret i32 %2 } declare i32 @llvm.x86.sse2.pmovmskb.128(<16 x i8>) nounwind readnone declare i32 @llvm.x86.sse2.movmsk.pd(<2 x double>) nounwind readnone declare i32 @llvm.x86.sse.movmsk.ps(<4 x float>) nounwind readnone