6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-06 01:24:35 +00:00
Code Issues Projects Releases Wiki Activity

This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!?

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75200 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2009-07-09 23:48:35 +00:00
parent 53674361ef
commit 333c400965
37 changed files with 482 additions and 333 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
lib/Transforms/Scalar/LoopIndexSplit.cpp
View File

@ -309,16 +309,18 @@ static Value *getMinusOne(Value *V, bool Sign, Instruction *InsertPt,
// Return min(V1, V1)
static Value *getMin(Value *V1, Value *V2, bool Sign, Instruction *InsertPt) {
Value *C = new ICmpInst(Sign ? ICmpInst::ICMP_SLT : ICmpInst::ICMP_ULT,
V1, V2, "lsp", InsertPt);
Value *C = new ICmpInst(InsertPt,
Sign ? ICmpInst::ICMP_SLT : ICmpInst::ICMP_ULT,
V1, V2, "lsp");
return SelectInst::Create(C, V1, V2, "lsp", InsertPt);
}
// Return max(V1, V2)
static Value *getMax(Value *V1, Value *V2, bool Sign, Instruction *InsertPt) {
Value *C = new ICmpInst(Sign ? ICmpInst::ICMP_SLT : ICmpInst::ICMP_ULT,
V1, V2, "lsp", InsertPt);
Value *C = new ICmpInst(InsertPt,
Sign ? ICmpInst::ICMP_SLT : ICmpInst::ICMP_ULT,
V1, V2, "lsp");
return SelectInst::Create(C, V2, V1, "lsp", InsertPt);
}
@ -427,15 +429,15 @@ bool LoopIndexSplit::processOneIterationLoop() {
// c1 = icmp uge i32 SplitValue, StartValue
// c2 = icmp ult i32 SplitValue, ExitValue
// and i32 c1, c2
Instruction *C1 = new ICmpInst(ExitCondition->isSignedPredicate() ?
Instruction *C1 = new ICmpInst(BR, ExitCondition->isSignedPredicate() ?
ICmpInst::ICMP_SGE : ICmpInst::ICMP_UGE,
SplitValue, StartValue, "lisplit", BR);
SplitValue, StartValue, "lisplit");
CmpInst::Predicate C2P = ExitCondition->getPredicate();
BranchInst *LatchBR = cast<BranchInst>(Latch->getTerminator());
if (LatchBR->getOperand(0) != Header)
C2P = CmpInst::getInversePredicate(C2P);
Instruction *C2 = new ICmpInst(C2P, SplitValue, ExitValue, "lisplit", BR);
Instruction *C2 = new ICmpInst(BR, C2P, SplitValue, ExitValue, "lisplit");
Instruction *NSplitCond = BinaryOperator::CreateAnd(C1, C2, "lisplit", BR);
SplitCondition->replaceAllUsesWith(NSplitCond);