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| author |   patrick <patrick@openbsd.org> | 2017-01-24 08:32:59 +0000 |
|---|---|---|
| committer | patrick <patrick@openbsd.org> | 2017-01-24 08:32:59 +0000 |
| commit | 53d771aafdbe5b919f264f53cba3788e2c4cffd2 (patch) | |
| tree | 7eca39498be0ff1e3a6daf583cd9ca5886bb2636 /gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp | |
| parent | In preparation of compiling our kernels with -ffreestanding, explicitly map (diff) | |
| download | wireguard-openbsd-53d771aafdbe5b919f264f53cba3788e2c4cffd2.tar.xz wireguard-openbsd-53d771aafdbe5b919f264f53cba3788e2c4cffd2.zip | |
Import LLVM 4.0.0 rc1 including clang and lld to help the current
development effort on OpenBSD/arm64.
Diffstat (limited to 'gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp')
| -rw-r--r-- | gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp b/gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp index b3c61691da3..29756d9dab7 100644 --- a/gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp +++ b/gnu/llvm/lib/Transforms/Utils/LoopVersioning.cpp @@ -36,7 +36,7 @@ LoopVersioning::LoopVersioning(const LoopAccessInfo &LAI, Loop *L, LoopInfo *LI, : VersionedLoop(L), NonVersionedLoop(nullptr), LAI(LAI), LI(LI), DT(DT), SE(SE) { assert(L->getExitBlock() && "No single exit block"); - assert(L->getLoopPreheader() && "No preheader"); + assert(L->isLoopSimplifyForm() && "Loop is not in loop-simplify form"); if (UseLAIChecks) { setAliasChecks(LAI.getRuntimePointerChecking()->getChecks()); setSCEVChecks(LAI.getPSE().getUnionPredicate()); @@ -278,8 +278,8 @@ public: bool Changed = false; for (Loop *L : Worklist) { const LoopAccessInfo &LAI = LAA->getInfo(L); - if (LAI.getNumRuntimePointerChecks() || - !LAI.getPSE().getUnionPredicate().isAlwaysTrue()) { + if (L->isLoopSimplifyForm() && (LAI.getNumRuntimePointerChecks() || + !LAI.getPSE().getUnionPredicate().isAlwaysTrue())) { LoopVersioning LVer(LAI, L, LI, DT, SE); LVer.versionLoop(); LVer.annotateLoopWithNoAlias(); |