diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp --- a/llvm/lib/IR/Verifier.cpp +++ b/llvm/lib/IR/Verifier.cpp @@ -1819,6 +1819,12 @@ if (PointerType *PTy = dyn_cast(Ty)) { if (Attrs.hasAttribute(Attribute::ByVal)) { + if (Attrs.hasAttribute(Attribute::Alignment)) { + Align AttrAlign = Attrs.getAlignment().valueOrOne(); + Align MaxAlign(ParamMaxAlignment); + Assert(AttrAlign <= MaxAlign, + "Attribute 'align' exceed the max size 2^14", V); + } SmallPtrSet Visited; Assert(Attrs.getByValType()->isSized(&Visited), "Attribute 'byval' does not support unsized types!", V); @@ -3154,7 +3160,7 @@ return; Align ABIAlign = DL.getABITypeAlign(Ty); Align MaxAlign(ParamMaxAlignment); - Assert(ABIAlign < MaxAlign, + Assert(ABIAlign <= MaxAlign, "Incorrect alignment of " + Message + " to called function!", Call); }; diff --git a/llvm/test/Verifier/param-attr-align.ll b/llvm/test/Verifier/param-attr-align.ll new file mode 100644 --- /dev/null +++ b/llvm/test/Verifier/param-attr-align.ll @@ -0,0 +1,11 @@ +; RUN: not llvm-as < %s 2>&1 | FileCheck %s + +; CHECK: Attribute 'align' exceed the max size 2^14 +define dso_local void @foo(i8* %p) { +entry: + %p1 = bitcast i8* %p to <8 x float>* + call void @bar(<8 x float>* noundef byval(<8 x float>) align 32768 %p1) + ret void +} + +declare dso_local void @bar(<8 x float>* %p)