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| author | Chris Lattner <sabre@nondot.org> | 2010-03-05 06:19:13 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-03-05 06:19:13 +0000 |
| commit | 18fdabadca110671b436de52fe7bd492ad49e656 (patch) | |
| tree | 96e009235a8cfdc293c8bc3b340619d855272052 /include/llvm/Analysis/ValueTracking.h | |
| parent | 1beaf41ef6fd29e96cff75fb173133f09822745f (diff) | |
| download | external_llvm-18fdabadca110671b436de52fe7bd492ad49e656.zip external_llvm-18fdabadca110671b436de52fe7bd492ad49e656.tar.gz external_llvm-18fdabadca110671b436de52fe7bd492ad49e656.tar.bz2 | |
Fix PR6497, a bug where we'd fold a load into an addc
node which has a flag. That flag in turn was used by an
already-selected adde which turned into an ADC32ri8 which
used a selected load which was chained to the load we
folded. This flag use caused us to form a cycle. Fix
this by not ignoring chains in IsLegalToFold even in
cases where the isel thinks it can.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97791 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Analysis/ValueTracking.h')
0 files changed, 0 insertions, 0 deletions