llvm-6502/test/CodeGen/X86/2006-11-28-Memcpy.ll

37 lines
1.6 KiB
LLVM
Raw Normal View History

; 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*, ...)