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-rw-r--r--llvm/lib/Target/X86/X86TargetMachine.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp
index c7a421ba71d..5f67949f8ef 100644
--- a/llvm/lib/Target/X86/X86TargetMachine.cpp
+++ b/llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -339,6 +339,7 @@ public:
void addPreRegAlloc() override;
void addPostRegAlloc() override;
void addPreEmitPass() override;
+ void addPreEmitPass2() override;
void addPreSched2() override;
};
@@ -371,6 +372,11 @@ void X86PassConfig::addIRPasses() {
if (TM->getOptLevel() != CodeGenOpt::None)
addPass(createInterleavedAccessPass());
+
+ // Add passes that handle indirect branch removal and insertion of a retpoline
+ // thunk. These will be a no-op unless a function subtarget has the retpoline
+ // feature enabled.
+ addPass(createIndirectBrExpandPass());
}
bool X86PassConfig::addInstSelector() {
@@ -461,3 +467,7 @@ void X86PassConfig::addPreEmitPass() {
addPass(createX86EvexToVexInsts());
}
}
+
+void X86PassConfig::addPreEmitPass2() {
+ addPass(createX86RetpolineThunksPass());
+}
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