diff options
Diffstat (limited to 'test/CodeGen/X86/2006-11-28-Memcpy.ll')
| -rw-r--r-- | test/CodeGen/X86/2006-11-28-Memcpy.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2006-11-28-Memcpy.ll b/test/CodeGen/X86/2006-11-28-Memcpy.ll new file mode 100644 index 0000000000000..a58bedc28d758 --- /dev/null +++ b/test/CodeGen/X86/2006-11-28-Memcpy.ll @@ -0,0 +1,36 @@ +; PR1022, PR1023 +; RUN: llvm-as < %s | llc -march=x86 | \ +; RUN: grep 3721182122 | count 2 +; RUN: llvm-as < %s | llc -march=x86 | \ +; RUN: grep -E {movl _?bytes2} | count 1 + +@fmt = constant [4 x i8] c"%x\0A\00" ; <[4 x i8]*> [#uses=2] +@bytes = constant [4 x i8] c"\AA\BB\CC\DD" ; <[4 x i8]*> [#uses=1] +@bytes2 = global [4 x i8] c"\AA\BB\CC\DD" ; <[4 x i8]*> [#uses=1] + +define i32 @test1() nounwind { + %y = alloca i32 ; <i32*> [#uses=2] + %c = bitcast i32* %y to i8* ; <i8*> [#uses=1] + %z = getelementptr [4 x i8]* @bytes, i32 0, i32 0 ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %c, i8* %z, i32 4, i32 1 ) + %r = load i32* %y ; <i32> [#uses=1] + %t = bitcast [4 x i8]* @fmt to i8* ; <i8*> [#uses=1] + %tmp = call i32 (i8*, ...)* @printf( i8* %t, i32 %r ) ; <i32> [#uses=0] + ret i32 0 +} + +define void @test2() nounwind { + %y = alloca i32 ; <i32*> [#uses=2] + %c = bitcast i32* %y to i8* ; <i8*> [#uses=1] + %z = getelementptr [4 x i8]* @bytes2, i32 0, i32 0 ; <i8*> [#uses=1] + call void @llvm.memcpy.i32( i8* %c, i8* %z, i32 4, i32 1 ) + %r = load i32* %y ; <i32> [#uses=1] + %t = bitcast [4 x i8]* @fmt to i8* ; <i8*> [#uses=1] + %tmp = call i32 (i8*, ...)* @printf( i8* %t, i32 %r ) ; <i32> [#uses=0] + ret void +} + +declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) + +declare i32 @printf(i8*, ...) + |