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| author | Florian Hahn <florian.hahn@arm.com> | 2017-10-10 10:33:45 +0000 |
|---|---|---|
| committer | Florian Hahn <florian.hahn@arm.com> | 2017-10-10 10:33:45 +0000 |
| commit | 7d2375df305b2a7a2e96daa24e3ee63e772edec0 (patch) | |
| tree | eae4bf703d26dd7d178850b40c191a0cedd01707 /llvm/lib/Transforms/Scalar/SCCP.cpp | |
| parent | b5ca92ef7385e39c9bf3b5eaf8c76343397b54e4 (diff) | |
| download | bcm5719-llvm-7d2375df305b2a7a2e96daa24e3ee63e772edec0.tar.gz bcm5719-llvm-7d2375df305b2a7a2e96daa24e3ee63e772edec0.zip | |
[SCCP] Fix mem-sanitizer failure introduced by r315288.
llvm-svn: 315294
Diffstat (limited to 'llvm/lib/Transforms/Scalar/SCCP.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SCCP.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/SCCP.cpp b/llvm/lib/Transforms/Scalar/SCCP.cpp index b0f58367c94..ca46b9016df 100644 --- a/llvm/lib/Transforms/Scalar/SCCP.cpp +++ b/llvm/lib/Transforms/Scalar/SCCP.cpp @@ -1600,8 +1600,10 @@ static bool tryToReplaceWithConstantRange(SCCPSolver &Solver, Value *V) { if (!(V->getType()->isIntegerTy() && IV.isConstantRange())) return false; - for (auto &Use : V->uses()) { - auto *Icmp = dyn_cast<ICmpInst>(Use.getUser()); + for (auto UI = V->uses().begin(), E = V->uses().end(); UI != E;) { + // Advance the iterator here, as we might remove the current use. + const Use &U = *UI++; + auto *Icmp = dyn_cast<ICmpInst>(U.getUser()); if (!Icmp) continue; |
