mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-10-02 17:55:18 +00:00
Fix PR3913, patch by Jakub Staszak!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80327 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
0e87e23f6e
commit
de64894dc3
@ -435,7 +435,7 @@ bool LoopIndexSplit::processOneIterationLoop() {
|
|||||||
|
|
||||||
CmpInst::Predicate C2P = ExitCondition->getPredicate();
|
CmpInst::Predicate C2P = ExitCondition->getPredicate();
|
||||||
BranchInst *LatchBR = cast<BranchInst>(Latch->getTerminator());
|
BranchInst *LatchBR = cast<BranchInst>(Latch->getTerminator());
|
||||||
if (LatchBR->getOperand(0) != Header)
|
if (LatchBR->getOperand(1) != Header)
|
||||||
C2P = CmpInst::getInversePredicate(C2P);
|
C2P = CmpInst::getInversePredicate(C2P);
|
||||||
Instruction *C2 = new ICmpInst(BR, C2P, SplitValue, ExitValue, "lisplit");
|
Instruction *C2 = new ICmpInst(BR, C2P, SplitValue, ExitValue, "lisplit");
|
||||||
Instruction *NSplitCond = BinaryOperator::CreateAnd(C1, C2, "lisplit", BR);
|
Instruction *NSplitCond = BinaryOperator::CreateAnd(C1, C2, "lisplit", BR);
|
||||||
|
24
test/Transforms/LoopIndexSplit/PR3913.ll
Normal file
24
test/Transforms/LoopIndexSplit/PR3913.ll
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
; RUN: llvm-as < %s | opt -loop-index-split | llvm-dis | not grep "icmp ne"
|
||||||
|
|
||||||
|
define i32 @main() {
|
||||||
|
entry:
|
||||||
|
br label %header
|
||||||
|
|
||||||
|
header:
|
||||||
|
%r = phi i32 [ 0, %entry ], [ %r3, %skip ]
|
||||||
|
%i = phi i32 [ 0, %entry ], [ %i1, %skip ]
|
||||||
|
%cond = icmp eq i32 %i, 99
|
||||||
|
br i1 %cond, label %body, label %skip
|
||||||
|
|
||||||
|
body:
|
||||||
|
br label %skip
|
||||||
|
|
||||||
|
skip:
|
||||||
|
%r3 = phi i32 [ %r, %header ], [ 3, %body ]
|
||||||
|
%i1 = add i32 %i, 1
|
||||||
|
%exitcond = icmp eq i32 %i1, 10
|
||||||
|
br i1 %exitcond, label %exit, label %header
|
||||||
|
|
||||||
|
exit:
|
||||||
|
ret i32 %r3
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user