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| author | Jeff Cohen <jeffc@jolt-lang.org> | 2005-03-04 04:04:26 +0000 |
|---|---|---|
| committer | Jeff Cohen <jeffc@jolt-lang.org> | 2005-03-04 04:04:26 +0000 |
| commit | 2f3c9b7562bcdc1795b2bd0ca28b283a8e972826 (patch) | |
| tree | 734d1bef304ad56ca48ac7133af9f69375fee19c /include/llvm/Transforms | |
| parent | 8d46a268c58368b106183026fbc96a7f3787ae0c (diff) | |
| download | external_llvm-2f3c9b7562bcdc1795b2bd0ca28b283a8e972826.zip external_llvm-2f3c9b7562bcdc1795b2bd0ca28b283a8e972826.tar.gz external_llvm-2f3c9b7562bcdc1795b2bd0ca28b283a8e972826.tar.bz2 | |
Add support for not strength reducing GEPs where the element size is a small
power of two. This emphatically includes the zeroeth power of two.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20429 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Transforms')
| -rw-r--r-- | include/llvm/Transforms/Scalar.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/llvm/Transforms/Scalar.h b/include/llvm/Transforms/Scalar.h index ae4f32e..7832c93 100644 --- a/include/llvm/Transforms/Scalar.h +++ b/include/llvm/Transforms/Scalar.h @@ -129,9 +129,12 @@ FunctionPass *createLICMPass(); //===----------------------------------------------------------------------===// // // LoopStrengthReduce - This pass is strength reduces GEP instructions that use -// a loop's canonical induction variable as one of their indices. +// a loop's canonical induction variable as one of their indices. The +// MaxTargetAMSize is the largest element size that the target architecture +// can handle in its addressing modes. Power of two multipliers less than or +// equal to this value are not reduced. // -FunctionPass *createLoopStrengthReducePass(); +FunctionPass *createLoopStrengthReducePass(unsigned MaxTargetAMSize = 1); //===----------------------------------------------------------------------===// // |