diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Analysis/ValueTracking.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp index 1e423c4512..5ebb6130fb 100644 --- a/lib/Analysis/ValueTracking.cpp +++ b/lib/Analysis/ValueTracking.cpp @@ -2036,6 +2036,12 @@ bool llvm::isSafeToSpeculativelyExecute(const Value *V, case Intrinsic::umul_with_overflow: case Intrinsic::usub_with_overflow: return true; + // Sqrt should be OK, since the llvm sqrt intrinsic isn't defined to set + // errno like libm sqrt would. + case Intrinsic::sqrt: + case Intrinsic::fma: + case Intrinsic::fmuladd: + return true; // TODO: some fp intrinsics are marked as having the same error handling // as libm. They're safe to speculate when they won't error. // TODO: are convert_{from,to}_fp16 safe? |