Rename ExpandISelPseudo->FinalizeISel, delay register reservation

This allows targets to make more decisions about reserved registers
after isel. For example, now it should be certain there are calls or
stack objects in the frame or not, which could have been introduced by
legalization.

Patch by Matthias Braun

llvm-svn: 363757

2 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
index 9a8aea2edf0..b10f53cfbc4 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -752,7 +752,8 @@ bool AMDGPUPassConfig::addPreISel() {
 }
 
 bool AMDGPUPassConfig::addInstSelector() {
-  addPass(createAMDGPUISelDag(&getAMDGPUTargetMachine(), getOptLevel()));
+  // Defer the verifier until FinalizeISel.
+  addPass(createAMDGPUISelDag(&getAMDGPUTargetMachine(), getOptLevel()), false);
   return false;
 }
 
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 5ba510d1a33..473cdbb575c 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -23385,7 +23385,7 @@ static SDValue LowerINTRINSIC_W_CHAIN(SDValue Op, const X86Subtarget &Subtarget,
       MachineFrameInfo &MFI = DAG.getMachineFunction().getFrameInfo();
       MFI.setHasCopyImplyingStackAdjustment(true);
       // Don't do anything here, we will expand these intrinsics out later
-      // during ExpandISelPseudos in EmitInstrWithCustomInserter.
+      // during FinalizeISel in EmitInstrWithCustomInserter.
       return SDValue();
     }
     case Intrinsic::x86_lwpins32: