llvm-project/llvm/test/Transforms/InstCombine/2012-09-24-MemcpyFromGlobal...

20 lines
598 B
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
; Check we don't crash due to lack of target data.
@G = constant [100 x i8] zeroinitializer
declare void @bar(i8*)
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
define void @test() {
; CHECK: @test
; CHECK: llvm.memcpy
; CHECK: ret void
%A = alloca [100 x i8]
%a = getelementptr inbounds [100 x i8]* %A, i64 0, i64 0
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* getelementptr inbounds ([100 x i8]* @G, i64 0, i32 0), i64 100, i32 4, i1 false)
call void @bar(i8* %a) readonly
ret void
}