llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-03-04 21:31:03 +00:00

History

Sanjoy Das caee94bbb4 Revert some changes that were made to fix PR20680.

This re-lands change r230921.  r230921 was reverted because it broke a
clang test; a checkin fixing the clang test will be commited shortly.

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231018 91177308-0d34-0410-b5e6-96231b3b80d8

2015-03-02 21:41:07 +00:00

Hello

…

InstCombine

[InstCombine/PowerPC] Convert aligned QPX load/store intrinsics into loads/stores

2015-02-26 18:56:03 +00:00

Instrumentation

[asan] Skip promotable allocas to improve performance at -O0

2015-02-27 03:12:36 +00:00

IPO

Convert push_back loops into append calls.

2015-02-28 13:20:15 +00:00