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| author | Arnaud A. de Grandmaison <arnaud.adegm@gmail.com> | 2013-03-22 08:25:01 +0000 |
|---|---|---|
| committer | Arnaud A. de Grandmaison <arnaud.adegm@gmail.com> | 2013-03-22 08:25:01 +0000 |
| commit | 2be921adc41fb079ce25d36bdd6402ca70d56451 (patch) | |
| tree | b978b2527e562b389d6c3fa4a4ca6ab0a17c399b /lib/Transforms/Utils | |
| parent | 9b294d4056f47bac5985de89c847aa1a04d38bf0 (diff) | |
| download | external_llvm-2be921adc41fb079ce25d36bdd6402ca70d56451.zip external_llvm-2be921adc41fb079ce25d36bdd6402ca70d56451.tar.gz external_llvm-2be921adc41fb079ce25d36bdd6402ca70d56451.tar.bz2 | |
InstCombine: Improve the result bitvect type when folding (cmp pred (load (gep GV, i)) C) to a bit test.
The original code used i32, and i64 if legal. This introduced unneeded
casts when they aren't legal, or when the index variable i has another
type. In order of preference: try to use i's type; use the smallest
fitting legal type (using an added DataLayout method); default to i32.
A testcase checks that this works when the index gep operand is i16.
Patch by : Ahmed Bougacha <ahmed.bougacha@gmail.com>
Reviewed by : Duncan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177712 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils')
0 files changed, 0 insertions, 0 deletions