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Add hidden -verify-coalescing to run the machine code verifier before and after

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register coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123890 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-01-20 06:20:00 +00:00
parent 8b1659e8bf
commit b908a009cf
1 changed files with 10 additions and 0 deletions
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10
lib/CodeGen/SimpleRegisterCoalescing.cpp
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@ -65,6 +65,11 @@ DisablePhysicalJoin("disable-physical-join",
cl::desc("Avoid coalescing physical register copies"), cl::desc("Avoid coalescing physical register copies"),
cl::init(false), cl::Hidden); cl::init(false), cl::Hidden);
static cl::opt<bool>
VerifyCoalescing("verify-coalescing",
cl::desc("Verify machine instrs before and after register coalescing"),
cl::Hidden);
INITIALIZE_AG_PASS_BEGIN(SimpleRegisterCoalescing, RegisterCoalescer, INITIALIZE_AG_PASS_BEGIN(SimpleRegisterCoalescing, RegisterCoalescer,
"simple-register-coalescing", "Simple Register Coalescing", "simple-register-coalescing", "Simple Register Coalescing",
false, false, true) false, false, true)
@ -1635,6 +1640,9 @@ bool SimpleRegisterCoalescing::runOnMachineFunction(MachineFunction &fn) {
<< "********** Function: " << "********** Function: "
<< ((Value*)mf_->getFunction())->getName() << '\n'); << ((Value*)mf_->getFunction())->getName() << '\n');
if (VerifyCoalescing)
mf_->verify(this, "Before register coalescing");
for (TargetRegisterInfo::regclass_iterator I = tri_->regclass_begin(), for (TargetRegisterInfo::regclass_iterator I = tri_->regclass_begin(),
E = tri_->regclass_end(); I != E; ++I) E = tri_->regclass_end(); I != E; ++I)
allocatableRCRegs_.insert(std::make_pair(*I, allocatableRCRegs_.insert(std::make_pair(*I,
@ -1777,6 +1785,8 @@ bool SimpleRegisterCoalescing::runOnMachineFunction(MachineFunction &fn) {
DEBUG(dump()); DEBUG(dump());
DEBUG(ldv_->dump()); DEBUG(ldv_->dump());
if (VerifyCoalescing)
mf_->verify(this, "After register coalescing");
return true; return true;
} }