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The early if conversion pass is ready to be used as an opt-in.

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Enable the pass by default for targets that request it, and change the
-enable-early-ifcvt to the opposite -disable-early-ifcvt.

There are still some x86 regressions when enabling early if-conversion
because of the missing machine models. Disable the pass for x86 until
machine models are added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165075 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2012-10-03 00:51:32 +00:00
parent 75eac5f0eb
commit 0d141f867d
3 changed files with 11 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CodeGen/Passes.cpp
+3 -3
View File
@@ -49,8 +49,8 @@ static cl::opt<bool> DisableSSC("disable-ssc", cl::Hidden,
cl::desc("Disable Stack Slot Coloring"));
static cl::opt<bool> DisableMachineDCE("disable-machine-dce", cl::Hidden,
cl::desc("Disable Machine Dead Code Elimination"));
static cl::opt<bool> EnableEarlyIfConversion("enable-early-ifcvt", cl::Hidden,
cl::desc("Enable Early If-conversion"));
static cl::opt<bool> DisableEarlyIfConversion("disable-early-ifcvt", cl::Hidden,
cl::desc("Disable Early If-conversion"));
static cl::opt<bool> DisableMachineLICM("disable-machine-licm", cl::Hidden,
cl::desc("Disable Machine LICM"));
static cl::opt<bool> DisableMachineCSE("disable-machine-cse", cl::Hidden,
@@ -161,7 +161,7 @@ static AnalysisID overridePass(AnalysisID StandardID, AnalysisID TargetID) {
return applyDisable(TargetID, DisableMachineDCE);
if (StandardID == &EarlyIfConverterID)
return applyDisable(TargetID, !EnableEarlyIfConversion);
return applyDisable(TargetID, DisableEarlyIfConversion);
if (StandardID == &MachineLICMID)
return applyDisable(TargetID, DisableMachineLICM);