; RUN: opt -lint -disable-output < %s 2>&1 | FileCheck %s declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) nounwind argmemonly define void @f_memcpy() { entry: %dst = alloca [1000 x i8], align 2 %src = alloca [1000 x i8], align 4 %dst.i8 = bitcast [1000 x i8]* %dst to i8* %src.i8 = bitcast [1000 x i8]* %src to i8* ; CHECK: Undefined behavior: Memory reference address is misaligned ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) ; CHECK: Undefined behavior: Memory reference address is misaligned ; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false) call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false) ; CHECK-NOT: @llvm.memcpy.p0i8.p0i8.i32 call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 2 %src.i8, i32 200, i1 false) call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) ret void } declare void @llvm.memmove.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1) nounwind argmemonly define void @f_memmove() { entry: %dst = alloca [1000 x i8], align 2 %src = alloca [1000 x i8], align 4 %dst.i8 = bitcast [1000 x i8]* %dst to i8* %src.i8 = bitcast [1000 x i8]* %src to i8* ; CHECK: Undefined behavior: Memory reference address is misaligned ; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* align 4 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) call void @llvm.memmove.p0i8.p0i8.i32(i8* align 4 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) ; CHECK: Undefined behavior: Memory reference address is misaligned ; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false) call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 8 %src.i8, i32 200, i1 false) ; CHECK-NOT: @llvm.memmove.p0i8.p0i8.i32 call void @llvm.memmove.p0i8.p0i8.i32(i8* align 1 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 2 %src.i8, i32 200, i1 false) call void @llvm.memmove.p0i8.p0i8.i32(i8* align 2 %dst.i8, i8* align 4 %src.i8, i32 200, i1 false) ret void } declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1) nounwind argmemonly define void @f_memset() { entry: %dst = alloca [1000 x i8], align 2 %dst.i8 = bitcast [1000 x i8]* %dst to i8* ; CHECK: Undefined behavior: Memory reference address is misaligned ; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* align 4 %dst.i8, i8 55, i32 200, i1 false) call void @llvm.memset.p0i8.i32(i8* align 4 %dst.i8, i8 55, i32 200, i1 false) ; CHECK-NOT: @llvm.memset.p0i8.i32 call void @llvm.memset.p0i8.i32(i8* align 1 %dst.i8, i8 55, i32 200, i1 false) call void @llvm.memset.p0i8.i32(i8* align 2 %dst.i8, i8 55, i32 200, i1 false) ret void }