diff options
| author | Dan Gohman <gohman@apple.com> | 2009-05-05 22:59:55 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-05-05 22:59:55 +0000 |
| commit | 4221ae84ef45c2099cbb7a61625e8260f37df275 (patch) | |
| tree | 9ae2d1b2259817bbd78a2b33c0f4b798052aa8ab /lib/Transforms/Scalar/LoopStrengthReduce.cpp | |
| parent | 8f18edd8b6fe00209314f4c56f33d7c3c18bbbff (diff) | |
| download | external_llvm-4221ae84ef45c2099cbb7a61625e8260f37df275.zip external_llvm-4221ae84ef45c2099cbb7a61625e8260f37df275.tar.gz external_llvm-4221ae84ef45c2099cbb7a61625e8260f37df275.tar.bz2 | |
Delete a FIXME which is no longer relevant, and add a FIXME that is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71033 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 4365adc..94c9d9b 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -2464,8 +2464,9 @@ bool LoopStrengthReduce::runOnLoop(Loop *L, LPPassManager &LPM) { // computation of some other indvar to decide when to terminate the loop. OptimizeIndvars(L); - // FIXME: We can widen subreg IV's here for RISC targets. e.g. instead of - // doing computation in byte values, promote to 32-bit values if safe. + // FIXME: We can widen overlarge IV's here. e.g. if the code has + // computation in i64 values and the target doesn't support i64, demote + // the computation to 32-bit if safe. // FIXME: Attempt to reuse values across multiple IV's. In particular, we // could have something like "for(i) { foo(i*8); bar(i*16) }", which should |