6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-23 17:24:48 +00:00
Code Issues Projects Releases Wiki Activity

[CodeGen] Add print and verify pass after each MachineFunctionPass by default

Browse Source 
Previously print+verify passes were added in a very unsystematic way, which is
annoying when debugging as you miss intermediate steps and allows bugs to stay
unnotice when no verification is performed.

To make this change practical I added the possibility to explicitely disable
verification. I used this option on all places where no verification was
performed previously (because alot of places actually don't pass the
MachineVerifier).
In the long term these problems should be fixed properly and verification
enabled after each pass. I'll enable some more verification in subsequent
commits.

This is the 2nd attempt at this after realizing that PassManager::add() may
actually delete the pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224059 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun
2014-12-11 21:26:47 +00:00
parent 966942da9e
commit 5b17297b3d
14 changed files with 208 additions and 262 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
lib/Target/Mips/MipsTargetMachine.cpp
View File

@ -170,9 +170,9 @@ public:
void addIRPasses() override;
bool addInstSelector() override;
void addMachineSSAOptimization() override;
bool addPreEmitPass() override;
void addPreEmitPass() override;
bool addPreRegAlloc() override;
void addPreRegAlloc() override;
};
} // namespace
@ -203,13 +203,9 @@ void MipsPassConfig::addMachineSSAOptimization() {
TargetPassConfig::addMachineSSAOptimization();
}
bool MipsPassConfig::addPreRegAlloc() {
if (getOptLevel() == CodeGenOpt::None) {
void MipsPassConfig::addPreRegAlloc() {
if (getOptLevel() == CodeGenOpt::None)
addPass(createMipsOptimizePICCallPass(getMipsTargetMachine()));
return true;
}
else
return false;
}
void MipsTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
@ -228,10 +224,9 @@ void MipsTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
// Implemented by targets that want to run passes immediately before
// machine code is emitted. return true if -print-machineinstrs should
// print out the code after the passes.
bool MipsPassConfig::addPreEmitPass() {
void MipsPassConfig::addPreEmitPass() {
MipsTargetMachine &TM = getMipsTargetMachine();
addPass(createMipsDelaySlotFillerPass(TM));
addPass(createMipsLongBranchPass(TM));
addPass(createMipsDelaySlotFillerPass(TM), false);
addPass(createMipsLongBranchPass(TM), false);
addPass(createMipsConstantIslandPass(TM));
return true;
}