MemCpyInst *MCI = cast<MemCpyInst>(&I);
// TODO: If the size is known, use it.
visitMemoryReference(I, MCI->getDest(), MemoryLocation::UnknownSize,
- MCI->getAlignment(), nullptr, MemRef::Write);
+ MCI->getDestAlignment(), nullptr, MemRef::Write);
visitMemoryReference(I, MCI->getSource(), MemoryLocation::UnknownSize,
- MCI->getAlignment(), nullptr, MemRef::Read);
+ MCI->getSourceAlignment(), nullptr, MemRef::Read);
// Check that the memcpy arguments don't overlap. The AliasAnalysis API
// isn't expressive enough for what we really want to do. Known partial
MemMoveInst *MMI = cast<MemMoveInst>(&I);
// TODO: If the size is known, use it.
visitMemoryReference(I, MMI->getDest(), MemoryLocation::UnknownSize,
- MMI->getAlignment(), nullptr, MemRef::Write);
+ MMI->getDestAlignment(), nullptr, MemRef::Write);
visitMemoryReference(I, MMI->getSource(), MemoryLocation::UnknownSize,
- MMI->getAlignment(), nullptr, MemRef::Read);
+ MMI->getSourceAlignment(), nullptr, MemRef::Read);
break;
}
case Intrinsic::memset: {
MemSetInst *MSI = cast<MemSetInst>(&I);
// TODO: If the size is known, use it.
visitMemoryReference(I, MSI->getDest(), MemoryLocation::UnknownSize,
- MSI->getAlignment(), nullptr, MemRef::Write);
+ MSI->getDestAlignment(), nullptr, MemRef::Write);
break;
}
--- /dev/null
+; 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
+}