diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/InstCombine/InstructionCombining.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp index 2e908e73f9..06fbaad3e4 100644 --- a/lib/Transforms/InstCombine/InstructionCombining.cpp +++ b/lib/Transforms/InstCombine/InstructionCombining.cpp @@ -532,10 +532,9 @@ Instruction *InstCombiner::FoldOpIntoPhi(Instruction &I) { if (NumPHIValues == 0) return 0; - // We normally only transform phis with a single use, unless we're trying - // hard to make jump threading happen. However, if a PHI has multiple uses - // and they are all the same operation, we can fold *all* of the uses into the - // PHI. + // We normally only transform phis with a single use. However, if a PHI has + // multiple uses and they are all the same operation, we can fold *all* of the + // uses into the PHI. if (!PN->hasOneUse()) { // Walk the use list for the instruction, comparing them to I. for (Value::use_iterator UI = PN->use_begin(), E = PN->use_end(); |