Test case for 132396. rdar://problem/5660695

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132399 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2011-05-31-movmsk.ll b/test/CodeGen/X86/2011-05-31-movmsk.ll
new file mode 100644 (file)
index 0000000..3c0ad25
--- /dev/null
+++ b/test/CodeGen/X86/2011-05-31-movmsk.ll
@@ -0,0 +1,99 @@
+; RUN: llc -mcpu=core2 < %s | FileCheck %s
+; ModuleID = '<stdin>'
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-apple-macosx10.6.6"
+
+%0 = type { double }
+%union.anon = type { float }
+
+define i32 @double_signbit(double %d1) nounwind uwtable readnone ssp {
+entry:
+  %__x.addr.i = alloca double, align 8
+  %__u.i = alloca %0, align 8
+  %0 = bitcast double* %__x.addr.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %0)
+  %1 = bitcast %0* %__u.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %1)
+  store double %d1, double* %__x.addr.i, align 8
+  %__f.i = getelementptr inbounds %0* %__u.i, i64 0, i32 0
+  store double %d1, double* %__f.i, align 8
+  %tmp = bitcast double %d1 to i64
+; CHECK-NOT: shr
+; CHECK: movmskpd
+; CHECK-NEXT: and
+  %tmp1 = lshr i64 %tmp, 63
+  %shr.i = trunc i64 %tmp1 to i32
+  call void @llvm.lifetime.end(i64 -1, i8* %0)
+  call void @llvm.lifetime.end(i64 -1, i8* %1)
+  ret i32 %shr.i
+}
+
+define i32 @double_add_signbit(double %d1, double %d2) nounwind uwtable readnone ssp {
+entry:
+  %__x.addr.i = alloca double, align 8
+  %__u.i = alloca %0, align 8
+  %add = fadd double %d1, %d2
+  %0 = bitcast double* %__x.addr.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %0)
+  %1 = bitcast %0* %__u.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %1)
+  store double %add, double* %__x.addr.i, align 8
+  %__f.i = getelementptr inbounds %0* %__u.i, i64 0, i32 0
+  store double %add, double* %__f.i, align 8
+  %tmp = bitcast double %add to i64
+; CHECK-NOT: shr
+; CHECK: movmskpd
+; CHECK-NEXT: and
+  %tmp1 = lshr i64 %tmp, 63
+  %shr.i = trunc i64 %tmp1 to i32
+  call void @llvm.lifetime.end(i64 -1, i8* %0)
+  call void @llvm.lifetime.end(i64 -1, i8* %1)
+  ret i32 %shr.i
+}
+
+define i32 @float_signbit(float %f1) nounwind uwtable readnone ssp {
+entry:
+  %__x.addr.i = alloca float, align 4
+  %__u.i = alloca %union.anon, align 4
+  %0 = bitcast float* %__x.addr.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %0)
+  %1 = bitcast %union.anon* %__u.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %1)
+  store float %f1, float* %__x.addr.i, align 4
+  %__f.i = getelementptr inbounds %union.anon* %__u.i, i64 0, i32 0
+  store float %f1, float* %__f.i, align 4
+  %2 = bitcast float %f1 to i32
+; CHECK-NOT: shr
+; CHECK: movmskps
+; CHECK-NEXT: and
+  %shr.i = lshr i32 %2, 31
+  call void @llvm.lifetime.end(i64 -1, i8* %0)
+  call void @llvm.lifetime.end(i64 -1, i8* %1)
+  ret i32 %shr.i
+}
+
+define i32 @float_add_signbit(float %f1, float %f2) nounwind uwtable readnone ssp {
+entry:
+  %__x.addr.i = alloca float, align 4
+  %__u.i = alloca %union.anon, align 4
+  %add = fadd float %f1, %f2
+  %0 = bitcast float* %__x.addr.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %0)
+  %1 = bitcast %union.anon* %__u.i to i8*
+  call void @llvm.lifetime.start(i64 -1, i8* %1)
+  store float %add, float* %__x.addr.i, align 4
+  %__f.i = getelementptr inbounds %union.anon* %__u.i, i64 0, i32 0
+  store float %add, float* %__f.i, align 4
+  %2 = bitcast float %add to i32
+; CHECK-NOT: shr
+; CHECK: movmskps
+; CHECK-NEXT: and
+  %shr.i = lshr i32 %2, 31
+  call void @llvm.lifetime.end(i64 -1, i8* %0)
+  call void @llvm.lifetime.end(i64 -1, i8* %1)
+  ret i32 %shr.i
+}
+
+declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
+
+declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind