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[PM] Switch the TargetMachine interface from accepting a pass manager

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base which it adds a single analysis pass to, to instead return the type
erased TargetTransformInfo object constructed for that TargetMachine.

This removes all of the pass variants for TTI. There is now a single TTI
*pass* in the Analysis layer. All of the Analysis <-> Target
communication is through the TTI's type erased interface itself. While
the diff is large here, it is nothing more that code motion to make
types available in a header file for use in a different source file
within each target.

I've tried to keep all the doxygen comments and file boilerplate in line
with this move, but let me know if I missed anything.

With this in place, the next step to making TTI work with the new pass
manager is to introduce a really simple new-style analysis that produces
a TTI object via a callback into this routine on the target machine.
Once we have that, we'll have the building blocks necessary to accept
a function argument as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227685 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2015-01-31 11:17:59 +00:00
parent 2d94613ec1
commit 1937233a22
40 changed files with 761 additions and 665 deletions
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11
lib/Target/Mips/MipsTargetMachine.cpp
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@@ -238,17 +238,18 @@ void MipsPassConfig::addPreRegAlloc() {
addPass(createMipsOptimizePICCallPass(getMipsTargetMachine()));
}
void MipsTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
TargetTransformInfo MipsTargetMachine::getTTI() {
if (Subtarget->allowMixed16_32()) {
DEBUG(errs() << "No ");
DEBUG(errs() << "No Target Transform Info Pass Added\n");
//FIXME: The Basic Target Transform Info
// pass needs to become a function pass instead of
// being an immutable pass and then this method as it exists now
// would be unnecessary.
PM.add(createNoTargetTransformInfoPass(getDataLayout()));
} else
LLVMTargetMachine::addAnalysisPasses(PM);
return TargetTransformInfo(getDataLayout());
}
DEBUG(errs() << "Target Transform Info Pass Added\n");
return LLVMTargetMachine::getTTI();
}
// Implemented by targets that want to run passes immediately before