Vendor import of llvm trunk r178860:

http://llvm.org/svn/llvm-project/llvm/trunk@178860

1 files changed, 39 insertions, 2 deletions

diff --git a/test/CodeGen/X86/memset.ll b/test/CodeGen/X86/memset.ll
index 72b3e0f..0d479f0 100644
--- a/test/CodeGen/X86/memset.ll
+++ b/test/CodeGen/X86/memset.ll
@@ -1,5 +1,6 @@
-; RUN: llc < %s -march=x86 -mattr=-sse -mtriple=i686-apple-darwin8.8.0 | grep mov | count 9
-; RUN: llc < %s -march=x86 -mattr=+sse -mtriple=i686-apple-darwin8.8.0 | grep mov | count 3
+; RUN: llc < %s -march=x86 -mcpu=pentium2 -mtriple=i686-apple-darwin8.8.0 | FileCheck %s --check-prefix=X86
+; RUN: llc < %s -march=x86 -mcpu=pentium3 -mtriple=i686-apple-darwin8.8.0 | FileCheck %s --check-prefix=XMM
+; RUN: llc < %s -march=x86 -mcpu=bdver1   -mtriple=i686-apple-darwin8.8.0 | FileCheck %s --check-prefix=YMM
 
 	%struct.x = type { i16, i16 }
 
@@ -8,7 +9,30 @@ entry:
 	%up_mvd = alloca [8 x %struct.x]		; <[8 x %struct.x]*> [#uses=2]
 	%up_mvd116 = getelementptr [8 x %struct.x]* %up_mvd, i32 0, i32 0		; <%struct.x*> [#uses=1]
 	%tmp110117 = bitcast [8 x %struct.x]* %up_mvd to i8*		; <i8*> [#uses=1]
+
 	call void @llvm.memset.p0i8.i64(i8* %tmp110117, i8 0, i64 32, i32 8, i1 false)
+; X86: movl $0,
+; X86: movl $0,
+; X86: movl $0,
+; X86: movl $0,
+; X86: movl $0,
+; X86: movl $0,
+; X86: movl $0,
+; X86: movl $0,
+; X86-NOT: movl $0,
+; X86: ret
+
+; XMM: xorps %xmm{{[0-9]+}}, [[Z:%xmm[0-9]+]]
+; XMM: movaps [[Z]],
+; XMM: movaps [[Z]],
+; XMM-NOT: movaps
+; XMM: ret
+
+; YMM: vxorps %ymm{{[0-9]+}}, %ymm{{[0-9]+}}, [[Z:%ymm[0-9]+]]
+; YMM: vmovaps [[Z]],
+; YMM-NOT: movaps
+; YMM: ret
+
 	call void @foo( %struct.x* %up_mvd116 ) nounwind 
 	ret void
 }
@@ -16,3 +40,16 @@ entry:
 declare void @foo(%struct.x*)
 
 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
+
+define void @PR15348(i8* %a) {
+; Ensure that alignment of '0' in an @llvm.memset intrinsic results in
+; unaligned loads and stores.
+; XMM: PR15348
+; XMM: movb $0,
+; XMM: movl $0,
+; XMM: movl $0,
+; XMM: movl $0,
+; XMM: movl $0,
+  call void @llvm.memset.p0i8.i64(i8* %a, i8 0, i64 17, i32 0, i1 false)
+  ret void
+}