[PM] Switch the TargetMachine interface from accepting a pass manager
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.
llvm-svn: 227685
diff --git a/llvm/lib/Target/Mips/MipsTargetMachine.cpp b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
index 1a5d21e..54b57dd 100644
--- a/llvm/lib/Target/Mips/MipsTargetMachine.cpp
+++ b/llvm/lib/Target/Mips/MipsTargetMachine.cpp
@@ -238,17 +238,18 @@
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