[Inliner] Don't inline through callsites with operand bundles
Summary:
This change teaches the LLVM inliner to not inline through callsites
with unknown operand bundles. Currently all operand bundles are
"unknown" operand bundles but in the near future we will add support for
inlining through some select kinds of operand bundles.
Reviewers: reames, chandlerc, majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14001
llvm-svn: 251141
diff --git a/llvm/lib/Transforms/Utils/InlineFunction.cpp b/llvm/lib/Transforms/Utils/InlineFunction.cpp
index 5539a26..1507d31 100644
--- a/llvm/lib/Transforms/Utils/InlineFunction.cpp
+++ b/llvm/lib/Transforms/Utils/InlineFunction.cpp
@@ -1029,6 +1029,10 @@
CalledFunc->isDeclaration() || // call, or call to a vararg function!
CalledFunc->getFunctionType()->isVarArg()) return false;
+ // The inliner does not know how to inline through calls with operand bundles.
+ if (CS.hasOperandBundles())
+ return false;
+
// If the call to the callee cannot throw, set the 'nounwind' flag on any
// calls that we inline.
bool MarkNoUnwind = CS.doesNotThrow();