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[PEI] Simplify handling of targets with no phys regs. NFC

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Make doSpillCalleeSavedRegs a member function, instead of passing most of the
members of PEI as arguments.

Differential Review: https://reviews.llvm.org/D35642

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317309 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Francis Visoiu Mistrih 2017-11-03 09:46:36 +00:00
parent 19a3ba35df
commit ba9125e489
1 changed files with 3 additions and 13 deletions
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16
lib/CodeGen/PrologEpilogInserter.cpp
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@ -76,12 +76,6 @@ using namespace llvm;
using MBBVector = SmallVector<MachineBasicBlock *, 4>;
static void spillCalleeSavedRegs(MachineFunction &MF, RegScavenger *RS,
unsigned &MinCSFrameIndex,
unsigned &MaxCXFrameIndex,
const MBBVector &SaveBlocks,
const MBBVector &RestoreBlocks);
namespace {
class PEI : public MachineFunctionPass {
@ -125,6 +119,7 @@ private:
void calculateCallFrameInfo(MachineFunction &Fn);
void calculateSaveRestoreBlocks(MachineFunction &Fn);
void spillCalleeSavedRegs(MachineFunction &MF);
void calculateFrameObjectOffsets(MachineFunction &Fn);
void replaceFrameIndices(MachineFunction &Fn);
@ -197,8 +192,7 @@ bool PEI::runOnMachineFunction(MachineFunction &Fn) {
// Handle CSR spilling and restoring, for targets that need it.
if (Fn.getTarget().usesPhysRegsForPEI())
spillCalleeSavedRegs(Fn, RS, MinCSFrameIndex, MaxCSFrameIndex, SaveBlocks,
RestoreBlocks);
spillCalleeSavedRegs(Fn);
// Allow the target machine to make final modifications to the function
// before the frame layout is finalized.
@ -505,11 +499,7 @@ static void insertCSRRestores(MachineBasicBlock &RestoreBlock,
}
}
static void spillCalleeSavedRegs(MachineFunction &Fn, RegScavenger *RS,
unsigned &MinCSFrameIndex,
unsigned &MaxCSFrameIndex,
const MBBVector &SaveBlocks,
const MBBVector &RestoreBlocks) {
void PEI::spillCalleeSavedRegs(MachineFunction &Fn) {
// We can't list this requirement in getRequiredProperties because some
// targets (WebAssembly) use virtual registers past this point, and the pass
// pipeline is set up without giving the passes a chance to look at the