diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/HardwareLoops.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/HardwareLoops.cpp b/llvm/lib/CodeGen/HardwareLoops.cpp index 3d900e3b7f5..8bf973a7ead 100644 --- a/llvm/lib/CodeGen/HardwareLoops.cpp +++ b/llvm/lib/CodeGen/HardwareLoops.cpp @@ -198,7 +198,10 @@ bool HardwareLoops::TryConvertLoop(Loop *L) { return true; // Stop search. HardwareLoopInfo HWLoopInfo(L); - if (TTI->isHardwareLoopProfitable(L, *LI, *SE, *AC, LibInfo, HWLoopInfo) || + if (!HWLoopInfo.canAnalyze(*LI)) + return false; + + if (TTI->isHardwareLoopProfitable(L, *SE, *AC, LibInfo, HWLoopInfo) || ForceHardwareLoops) { // Allow overriding of the counter width and loop decrement value. |
