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GlobalMerge: move "-global-merge" option to the pass itself.

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It's rather odd to have the flag enabling and disabling this pass only affect a
single target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201559 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover
2014-02-18 11:17:29 +00:00
parent d729dfc96e
commit 4bcb985295
2 changed files with 9 additions and 6 deletions
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7
lib/Target/ARM/ARMTargetMachine.cpp
View File

@@ -23,11 +23,6 @@
#include "llvm/Transforms/Scalar.h" #include "llvm/Transforms/Scalar.h"
using namespace llvm; using namespace llvm;
static cl::opt<bool>
EnableGlobalMerge("global-merge", cl::Hidden,
cl::desc("Enable global merge pass"),
cl::init(true));
static cl::opt<bool> static cl::opt<bool>
DisableA15SDOptimization("disable-a15-sd-optimization", cl::Hidden, DisableA15SDOptimization("disable-a15-sd-optimization", cl::Hidden,
cl::desc("Inhibit optimization of S->D register accesses on A15"), cl::desc("Inhibit optimization of S->D register accesses on A15"),
@@ -184,7 +179,7 @@ TargetPassConfig *ARMBaseTargetMachine::createPassConfig(PassManagerBase &PM) {
} }
bool ARMPassConfig::addPreISel() { bool ARMPassConfig::addPreISel() {
if (TM->getOptLevel() != CodeGenOpt::None && EnableGlobalMerge) if (TM->getOptLevel() != CodeGenOpt::None)
addPass(createGlobalMergePass(TM)); addPass(createGlobalMergePass(TM));
return false; return false;

8
lib/Transforms/Scalar/GlobalMerge.cpp
View File

@@ -70,6 +70,11 @@
#include "llvm/Target/TargetLoweringObjectFile.h" #include "llvm/Target/TargetLoweringObjectFile.h"
using namespace llvm; using namespace llvm;
static cl::opt<bool>
EnableGlobalMerge("global-merge", cl::Hidden,
cl::desc("Enable global merge pass"),
cl::init(true));
static cl::opt<bool> static cl::opt<bool>
EnableGlobalMergeOnConst("global-merge-on-const", cl::Hidden, EnableGlobalMergeOnConst("global-merge-on-const", cl::Hidden,
cl::desc("Enable global merge pass on constants"), cl::desc("Enable global merge pass on constants"),
@@ -231,6 +236,9 @@ void GlobalMerge::setMustKeepGlobalVariables(Module &M) {
} }
bool GlobalMerge::doInitialization(Module &M) { bool GlobalMerge::doInitialization(Module &M) {
if (!EnableGlobalMerge)
return false;
DenseMap<unsigned, SmallVector<GlobalVariable*, 16> > Globals, ConstGlobals, DenseMap<unsigned, SmallVector<GlobalVariable*, 16> > Globals, ConstGlobals,
BSSGlobals; BSSGlobals;
const TargetLowering *TLI = TM->getTargetLowering(); const TargetLowering *TLI = TM->getTargetLowering();