Make getParamAlignment use argument numbers
The method is called "get *Param* Alignment", and is only used for
return values exactly once, so it should take argument indices, not
attribute indices.
Avoids confusing code like:
IsSwiftError = CS->paramHasAttr(ArgIdx, Attribute::SwiftError);
Alignment = CS->getParamAlignment(ArgIdx + 1);
Add getRetAlignment to handle the one case in Value.cpp that wants the
return value alignment.
This is a potentially breaking change for out-of-tree backends that do
their own call lowering.
llvm-svn: 301682
diff --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index 12f52a3..fc61ba7 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -84,8 +84,7 @@
unsigned Argument::getParamAlignment() const {
assert(getType()->isPointerTy() && "Only pointers have alignments");
- return getParent()->getParamAlignment(getArgNo()+1);
-
+ return getParent()->getParamAlignment(getArgNo());
}
uint64_t Argument::getDereferenceableBytes() const {