CodeGen peephole: fold redundant phys reg copies

[oota-llvm.git] / test / CodeGen / X86 / pmovext.ll

diff --git a/test/CodeGen/X86/pmovext.ll b/test/CodeGen/X86/pmovext.ll
index 16e9c28fcdefede81d7646fc94f090e12069d616..6c76949fb78b787cf33a7334207fdafa01b79332 100644 (file)
--- a/test/CodeGen/X86/pmovext.ll
+++ b/test/CodeGen/X86/pmovext.ll
@@ -2,13 +2,13 @@
 
 ; rdar://11897677
 
-;CHECK: intrin_pmov
+;CHECK-LABEL: intrin_pmov:
 ;CHECK: pmovzxbw  (%{{.*}}), %xmm0
 ;CHECK-NEXT: movdqu
 ;CHECK-NEXT: ret
 define void @intrin_pmov(i16* noalias %dest, i8* noalias %src) nounwind uwtable ssp {
   %1 = bitcast i8* %src to <2 x i64>*
-  %2 = load <2 x i64>* %1, align 16
+  %2 = load <2 x i64>, <2 x i64>* %1, align 16
   %3 = bitcast <2 x i64> %2 to <16 x i8>
   %4 = tail call <8 x i16> @llvm.x86.sse41.pmovzxbw(<16 x i8> %3) nounwind
   %5 = bitcast i16* %dest to i8*
@@ -18,5 +18,28 @@ define void @intrin_pmov(i16* noalias %dest, i8* noalias %src) nounwind uwtable
 }
 
 declare <8 x i16> @llvm.x86.sse41.pmovzxbw(<16 x i8>) nounwind readnone
-
 declare void @llvm.x86.sse2.storeu.dq(i8*, <16 x i8>) nounwind
+
+; rdar://15245794
+
+define <4 x i32> @foo0(double %v.coerce) nounwind ssp {
+; CHECK-LABEL: foo0
+; CHECK: pmovzxwd %xmm0, %xmm0
+; CHECK-NEXT: ret
+  %tmp = bitcast double %v.coerce to <4 x i16>
+  %tmp1 = shufflevector <4 x i16> %tmp, <4 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 undef, i32 undef, i32 undef, i32 undef>
+  %tmp2 = tail call <4 x i32> @llvm.x86.sse41.pmovzxwd(<8 x i16> %tmp1) nounwind
+  ret <4 x i32> %tmp2
+}
+
+define <8 x i16> @foo1(double %v.coerce) nounwind ssp {
+; CHECK-LABEL: foo1
+; CHECK: pmovzxbw %xmm0, %xmm0
+; CHECK-NEXT: ret
+  %tmp = bitcast double %v.coerce to <8 x i8>
+  %tmp1 = shufflevector <8 x i8> %tmp, <8 x i8> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
+  %tmp2 = tail call <8 x i16> @llvm.x86.sse41.pmovzxbw(<16 x i8> %tmp1)
+  ret <8 x i16> %tmp2
+}
+
+declare <4 x i32> @llvm.x86.sse41.pmovzxwd(<8 x i16>) nounwind readnone