6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-13 22:24:07 +00:00
Code Issues Projects Releases Wiki Activity

[StackMaps] Enable patchpoint liveness analysis per default.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211817 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Juergen Ributzka
2014-06-26 23:39:52 +00:00
parent 307a6447e5
commit b1b6d10d09
4 changed files with 14 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
lib/CodeGen/StackMapLivenessAnalysis.cpp
View File

@ -29,7 +29,8 @@ using namespace llvm;
namespace llvm {
cl::opt<bool> EnablePatchPointLiveness("enable-patchpoint-liveness",
cl::Hidden, cl::desc("Enable PatchPoint Liveness Analysis Pass"));
cl::Hidden, cl::init(true),
cl::desc("Enable PatchPoint Liveness Analysis Pass"));
}
STATISTIC(NumStackMapFuncVisited, "Number of functions visited");
@ -60,6 +61,9 @@ void StackMapLiveness::getAnalysisUsage(AnalysisUsage &AU) const {
/// Calculate the liveness information for the given machine function.
bool StackMapLiveness::runOnMachineFunction(MachineFunction &_MF) {
if (!EnablePatchPointLiveness)
return false;
DEBUG(dbgs() << "********** COMPUTING STACKMAP LIVENESS: "
<< _MF.getName() << " **********\n");
MF = &_MF;
@ -67,7 +71,7 @@ bool StackMapLiveness::runOnMachineFunction(MachineFunction &_MF) {
++NumStackMapFuncVisited;
// Skip this function if there are no patchpoints to process.
if (!(MF->getFrameInfo()->hasPatchPoint() && EnablePatchPointLiveness)) {
if (!MF->getFrameInfo()->hasPatchPoint()) {
++NumStackMapFuncSkipped;
return false;
}
@ -88,8 +92,7 @@ bool StackMapLiveness::calculateLiveness() {
// set to an instruction if we encounter a patchpoint instruction.
for (MachineBasicBlock::reverse_iterator I = MBBI->rbegin(),
E = MBBI->rend(); I != E; ++I) {
int Opc = I->getOpcode();
if (Opc == TargetOpcode::PATCHPOINT) {
if (I->getOpcode() == TargetOpcode::PATCHPOINT) {
addLiveOutSetToMI(*I);
HasChanged = true;
HasStackMap = true;