Disable each MachineFunctionPass for 'optnone' functions, unless that
pass normally runs at optimization level None, or is part of the
register allocation pipeline.
llvm-svn: 205228
diff --git a/llvm/lib/CodeGen/OptimizePHIs.cpp b/llvm/lib/CodeGen/OptimizePHIs.cpp
index 4973802..56cb673 100644
--- a/llvm/lib/CodeGen/OptimizePHIs.cpp
+++ b/llvm/lib/CodeGen/OptimizePHIs.cpp
@@ -61,6 +61,9 @@
"Optimize machine instruction PHIs", false, false)
bool OptimizePHIs::runOnMachineFunction(MachineFunction &Fn) {
+ if (skipOptnoneFunction(*Fn.getFunction()))
+ return false;
+
MRI = &Fn.getRegInfo();
TII = Fn.getTarget().getInstrInfo();