Added TargetPassConfig::setOpt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150093 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index 2877cf1..6d12dd8 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -84,7 +84,10 @@
TargetPassConfig::~TargetPassConfig() {}
TargetPassConfig::TargetPassConfig(TargetMachine *tm, PassManagerBase &pm)
- : ImmutablePass(ID), TM(tm), PM(pm), DisableVerify(false) {
+ : ImmutablePass(ID), TM(tm), PM(pm), Initialized(false),
+ DisableVerify(false),
+ EnableTailMerge(true) {
+
// Register all target independent codegen passes to activate their PassIDs,
// including this pass itself.
initializeCodeGen(*PassRegistry::getPassRegistry());
@@ -103,6 +106,12 @@
llvm_unreachable("TargetPassConfig should not be constructed on-the-fly");
}
+// Helper to verify the analysis is really immutable.
+void TargetPassConfig::setOpt(bool &Opt, bool Val) {
+ assert(!Initialized && "PassConfig is immutable");
+ Opt = Val;
+}
+
void TargetPassConfig::addPass(char &ID) {
// FIXME: check user overrides
Pass *P = Pass::createPass(ID);