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-rw-r--r--lib/CodeGen/LLVMTargetMachine.cpp8
1 files changed, 3 insertions, 5 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 758c81dc59..837e1848aa 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -39,6 +39,8 @@ static cl::opt<bool> DisableBranchFold("disable-branch-fold", cl::Hidden,
cl::desc("Disable branch folding"));
static cl::opt<bool> DisableTailDuplicate("disable-tail-duplicate", cl::Hidden,
cl::desc("Disable tail duplication"));
+static cl::opt<bool> DisableEarlyTailDup("disable-early-taildup", cl::Hidden,
+ cl::desc("Disable pre-register allocation tail duplication"));
static cl::opt<bool> DisableCodePlace("disable-code-place", cl::Hidden,
cl::desc("Disable code placement"));
static cl::opt<bool> DisableSSC("disable-ssc", cl::Hidden,
@@ -77,9 +79,6 @@ EnableFastISelOption("fast-isel", cl::Hidden,
static cl::opt<bool> EnableSplitGEPGVN("split-gep-gvn", cl::Hidden,
cl::desc("Split GEPs and run no-load GVN"));
-static cl::opt<bool> PreAllocTailDup("pre-regalloc-taildup", cl::Hidden,
- cl::desc("Pre-register allocation tail duplication"));
-
LLVMTargetMachine::LLVMTargetMachine(const Target &T,
const std::string &TargetTriple)
: TargetMachine(T) {
@@ -351,8 +350,7 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM,
}
// Pre-ra tail duplication.
- if (OptLevel != CodeGenOpt::None &&
- !DisableTailDuplicate && PreAllocTailDup) {
+ if (OptLevel != CodeGenOpt::None && !DisableEarlyTailDup) {
PM.add(createTailDuplicatePass(true));
printAndVerify(PM, "After Pre-RegAlloc TailDuplicate",
/* allowDoubleDefs= */ true);