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[ARM] Register (existing) ARMLoadStoreOpt pass with LLVM pass manager. 

Summary: Among other things, this allows -print-after-all/-print-before-all to dump IR around this pass.

Subscribers: aemerson, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D11373

llvm-svn: 243052
This commit is contained in:
David Gross 2015-07-23 22:12:46 +00:00
parent 5a268b10b3
commit d9c1bc9955
1 changed files with 12 additions and 2 deletions
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14
llvm/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
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@ -60,12 +60,20 @@ STATISTIC(NumSTRD2STM, "Number of strd instructions turned back into stm");
STATISTIC(NumLDRD2LDR, "Number of ldrd instructions turned back into ldr's");
STATISTIC(NumSTRD2STR, "Number of strd instructions turned back into str's");
namespace llvm {
void initializeARMLoadStoreOptPass(PassRegistry &);
}
#define ARM_LOAD_STORE_OPT_NAME "ARM load / store optimization pass"
namespace {
/// Post- register allocation pass the combine load / store instructions to
/// form ldm / stm instructions.
struct ARMLoadStoreOpt : public MachineFunctionPass {
static char ID;
ARMLoadStoreOpt() : MachineFunctionPass(ID) {}
ARMLoadStoreOpt() : MachineFunctionPass(ID) {
initializeARMLoadStoreOptPass(*PassRegistry::getPassRegistry());
}
const MachineFunction *MF;
const TargetInstrInfo *TII;
@ -84,7 +92,7 @@ namespace {
bool runOnMachineFunction(MachineFunction &Fn) override;
const char *getPassName() const override {
return "ARM load / store optimization pass";
return ARM_LOAD_STORE_OPT_NAME;
}
private:
@ -148,6 +156,8 @@ namespace {
char ARMLoadStoreOpt::ID = 0;
}
INITIALIZE_PASS(ARMLoadStoreOpt, "arm-load-store-opt", ARM_LOAD_STORE_OPT_NAME, false, false)
static bool definesCPSR(const MachineInstr *MI) {
for (const auto &MO : MI->operands()) {
if (!MO.isReg())