================
@@ -788,6 +797,17 @@ void LoopInfoStack::push(BasicBlock *Header,
clang::ASTContext &Ctx,
}
}
+ // Identify loop attribute 'code_align' from Attrs.
+ // For attribute code_align:
+ // n - 'llvm.loop.align i32 n' metadata will be emitted.
+ for (const auto *A : Attrs) {
+ if (const auto *CodeAlign = dyn_cast<CodeAlignAttr>(A)) {
+ const auto *CE = cast<ConstantExpr>(CodeAlign->getAlignment());
+ llvm::APSInt ArgVal = CE->getResultAsAPSInt();
+ setCodeAlign(ArgVal.getSExtValue());
+ }
+ }
----------------
smanna12 wrote:
I have updated codegen change to fix the build issue below:
```
if (const auto *CodeAlign = getSpecificAttr<const CodeAlignAttr>(Attrs)) {
const auto *CE = cast<ConstantExpr>(CodeAlign->getAlignment());
llvm::APSInt ArgVal = CE->getResultAsAPSInt();
setCodeAlign(ArgVal.getSExtValue());
```
.../include/clang/AST/AttrIterator.h: In instantiation of ‘SpecificAttr*
clang::specific_attr_iterator<SpecificAttr, Container>::operator*() const [with
SpecificAttr = clang::CodeAlignAttr; Container = llvm::ArrayRef<const
clang::Attr*>; clang::specific_attr_iterator<SpecificAttr,
Container>::reference = clang::CodeAlignAttr*]’:
.../include/clang/AST/AttrIterator.h:120:12: required from ‘SpecificAttr*
clang::getSpecificAttr(const Container&) [with SpecificAttr =
clang::CodeAlignAttr; Container = llvm::ArrayRef<const clang::Attr*>]’
.../lib/CodeGen/CGLoopInfo.cpp:803:67: required from here
/.../include/clang/AST/AttrIterator.h:67:30: error: invalid conversion from
‘llvm::CastInfo<clang::CodeAlignAttr, const clang::Attr*, void>::CastReturnType
{aka const clang::CodeAlignAttr*}’ to
‘clang::specific_attr_iterator<clang::CodeAlignAttr, llvm::ArrayRef<const
clang::Attr*> >::reference {aka clang::CodeAlignAttr*}’ [-fpermissive]
return cast<SpecificAttr>(*Current);
https://github.com/llvm/llvm-project/pull/70762
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