diff options
| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-03-01 23:36:26 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-03-01 23:36:26 +0000 |
| commit | 876bd51486dc235d147b41ad366368b152286fd0 (patch) | |
| tree | 104750043787549e32c4dbe84655e67c2b2d6190 /llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp | |
| parent | 7f360ce5c2d8659fd6672471e03a7dec99a17461 (diff) | |
| download | bcm5719-llvm-876bd51486dc235d147b41ad366368b152286fd0.tar.gz bcm5719-llvm-876bd51486dc235d147b41ad366368b152286fd0.zip | |
Revert some changes that were made to fix PR20680.
Summary:
As far as I can tell, the real bug causing the issue was fixed in
r230533. SCEVExpander should mark an increment operation as nuw or nsw
only if it can *prove* that the operation does not overflow. There
shouldn't be any situation where we have to do something different
because of no-wrap flags generated by SCEVExpander.
Revert "IndVarSimplify: Allow LFTR to fire more often"
This reverts commit 1ade0f0faa98877b688e0b9da58e876052c1e04e (SVN: 222213).
Revert "IndVarSimplify: Don't let LFTR compare against a poison value"
This reverts commit c0f2b8b528d8a37b0a1522aae90af649d6357eb5 (SVN: 217102).
Reviewers: majnemer, atrick, spatel
Differential Revision: http://reviews.llvm.org/D7979
llvm-svn: 230921
Diffstat (limited to 'llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp')
0 files changed, 0 insertions, 0 deletions
