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Enable stack slot coloring DCE. Evan's spiller fixes were needed before this could happen. 

llvm-svn: 65501
This commit is contained in:
Owen Anderson 2009-02-26 04:47:57 +00:00
parent adf40d4bef
commit 5c53a46297
1 changed files with 2 additions and 7 deletions
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9
llvm/lib/CodeGen/StackSlotColoring.cpp
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@ -30,12 +30,7 @@ using namespace llvm;
static cl::opt<bool> static cl::opt<bool>
DisableSharing("no-stack-slot-sharing", DisableSharing("no-stack-slot-sharing",
cl::init(false), cl::Hidden, cl::init(false), cl::Hidden,
cl::desc("Surpress slot sharing during stack coloring")); cl::desc("Suppress slot sharing during stack coloring"));
static cl::opt<bool>
EnableDCE("enable-ssc-dce",
cl::init(false), cl::Hidden,
cl::desc("Enable slot coloring DCE"));
static cl::opt<int> DCELimit("ssc-dce-limit", cl::init(-1), cl::Hidden); static cl::opt<int> DCELimit("ssc-dce-limit", cl::init(-1), cl::Hidden);
@ -342,7 +337,7 @@ bool StackSlotColoring::runOnMachineFunction(MachineFunction &MF) {
Assignments[i].clear(); Assignments[i].clear();
Assignments.clear(); Assignments.clear();
if (EnableDCE) { if (Changed) {
for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I)
Changed |= removeDeadStores(I); Changed |= removeDeadStores(I);
} }