maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Switch lowering: reformat some for loops etc. NFC 

llvm-svn: 222962
This commit is contained in:
Hans Wennborg 2014-11-29 21:24:12 +00:00
parent 6c42d1a5de
commit 6dfb041ffc
1 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -2514,15 +2514,14 @@ bool SelectionDAGBuilder::handleBitTestsSwitchCase(CaseRec& CR,
return false;
size_t numCmps = 0;
for (CaseItr I = CR.Range.first, E = CR.Range.second;
I!=E; ++I) {
for (CaseItr I = CR.Range.first, E = CR.Range.second; I != E; ++I) {
// Single case counts one, case range - two.
numCmps += (I->Low == I->High ? 1 : 2);
}
// Count unique destinations
SmallSet<MachineBasicBlock*, 4> Dests;
for (CaseItr I = CR.Range.first, E = CR.Range.second; I!=E; ++I) {
for (CaseItr I = CR.Range.first, E = CR.Range.second; I != E; ++I) {
Dests.insert(I->BB);
if (Dests.size() > 3)
// Don't bother the code below, if there are too much unique destinations
@ -2629,9 +2628,8 @@ bool SelectionDAGBuilder::handleBitTestsSwitchCase(CaseRec& CR,
void SelectionDAGBuilder::Clusterify(CaseVector& Cases,
const SwitchInst& SI) {
BranchProbabilityInfo *BPI = FuncInfo.BPI;
// Start with "simple" cases
for (SwitchInst::ConstCaseIt i = SI.case_begin(), e = SI.case_end();
i != e; ++i) {
// Start with "simple" cases.
for (SwitchInst::ConstCaseIt i : SI.cases()) {
const BasicBlock *SuccBB = i.getCaseSuccessor();
MachineBasicBlock *SMBB = FuncInfo.MBBMap[SuccBB];
@ -2703,9 +2701,9 @@ void SelectionDAGBuilder::visitSwitch(const SwitchInst &SI) {
// next basic block. Otherwise, just fall through.
if (!SI.getNumCases()) {
// Update machine-CFG edges.
SwitchMBB->addSuccessor(Default);
// If this is not a fall-through branch, emit the branch.
SwitchMBB->addSuccessor(Default);
if (Default != NextBlock)
DAG.setRoot(DAG.getNode(ISD::BR, getCurSDLoc(),
MVT::Other, getControlRoot(),