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path: root/llvm/lib/Transforms/Utils/LoopSimplify.cpp
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-rw-r--r--llvm/lib/Transforms/Utils/LoopSimplify.cpp16
1 files changed, 9 insertions, 7 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopSimplify.cpp b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
index 16085f4..f247a7e 100644
--- a/llvm/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/llvm/lib/Transforms/Utils/LoopSimplify.cpp
@@ -647,20 +647,22 @@ ReprocessLoop:
Instruction *Inst = &*I++;
if (Inst == CI)
continue;
+ bool InstInvariant = false;
if (!L->makeLoopInvariant(
- Inst, AnyInvariant,
+ Inst, InstInvariant,
Preheader ? Preheader->getTerminator() : nullptr, MSSAU)) {
AllInvariant = false;
break;
}
+ if (InstInvariant && SE) {
+ // The loop disposition of all SCEV expressions that depend on any
+ // hoisted values have also changed.
+ SE->forgetBlockAndLoopDispositions(Inst);
+ }
+ AnyInvariant |= InstInvariant;
}
- if (AnyInvariant) {
+ if (AnyInvariant)
Changed = true;
- // The loop disposition of all SCEV expressions that depend on any
- // hoisted values have also changed.
- if (SE)
- SE->forgetLoopDispositions();
- }
if (!AllInvariant) continue;
// The block has now been cleared of all instructions except for