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[Inliner] Don't skip inlining alwaysinline in optnone functions

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Previously the NPM inliner would skip all potential inlines in an
optnone function, but alwaysinline callees should be inlined regardless
of optnone.

Fixes inline-optnone.ll under NPM.

Reviewed By: kazu

Differential Revision: https://reviews.llvm.org/D83021
This commit is contained in:
Arthur Eubanks 2020-07-02 11:17:21 -07:00
parent 91a47585e0
commit 9451d2b35e
2 changed files with 4 additions and 1 deletions
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4
lib/Transforms/IPO/Inliner.cpp
View File

@ -791,7 +791,9 @@ PreservedAnalyses InlinerPass::run(LazyCallGraph::SCC &InitialC,
LazyCallGraph::Node &N = *CG.lookup(F);
if (CG.lookupSCC(N) != C)
continue;
if (F.hasOptNone()) {
if (!Calls[I].first->getCalledFunction()->hasFnAttribute(
Attribute::AlwaysInline) &&
F.hasOptNone()) {
setInlineRemark(*Calls[I].first, "optnone attribute");
continue;
}

1
test/Transforms/Inline/inline-optnone.ll
View File

@ -1,4 +1,5 @@
; RUN: opt < %s -inline -S | FileCheck %s
; RUN: opt < %s --passes=inline -S | FileCheck %s
; Test that functions with attribute optnone are not inlined.
; Also test that only functions with attribute alwaysinline are