1 ; RUN: opt -passes=dse -S < %s | FileCheck %s
3 declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind
5 define void @fn(ptr nocapture %buf) #0 {
8 ; We would not eliminate the first memcpy with data layout, and we should not
9 ; eliminate it without data layout.
11 ; CHECK: tail call void @llvm.memcpy.p0.p0.i64
12 ; CHECK: tail call void @llvm.memcpy.p0.p0.i64
15 %arrayidx = getelementptr i8, ptr %buf, i64 18
16 tail call void @llvm.memcpy.p0.p0.i64(ptr %arrayidx, ptr %buf, i64 18, i1 false)
17 store i8 1, ptr %arrayidx, align 1
18 tail call void @llvm.memcpy.p0.p0.i64(ptr %buf, ptr %arrayidx, i64 18, i1 false)