aboutsummaryrefslogtreecommitdiff
path: root/lib/CodeGen/CriticalAntiDepBreaker.cpp
AgeCommit message (Collapse)Author
2011-02-08Fix PostRA antidependence breaker.Andrew Trick
Avoid using the same register for two def operands or and earlyclobber def and use operand. This fixes PR8986 and improves on the prior fix for rdar://problem/8959122. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Fix an anti-dep breaker corner case.Andrew Trick
<rdar://problem/8959122> illegal register operands for UMULL instruction in cfrac nightly test I'm stil working on a unit test, but the case is: rx = movcc rx, r3 r2 = ldr r2, r3 = umull r2, r2 The anti-dep breaker should not convert this into an illegal instruction: r2, r2 = umull git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124932 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02Fixes <rdar://problem/8612856>: During postRAsched, the antidependenceAndrew Trick
breaker needs to check all definitions of the antidepenent register to avoid multiple defs of the same new register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118032 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-02Fix a miscompile in 186.crafty for Thumb2 that was exposed by Evan'sBob Wilson
scheduling change in svn 115121. The CriticalAntiDepBreaker had bad liveness information. It was calculating the KillIndices for one scheduling region in a basic block, rescheduling that region so the KillIndices were no longer valid, and then using those wrong KillIndices to make decisions for the next scheduling region. I've not been able to reduce a small testcase for this. Radar 8502534. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10Fix a comment typo.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-02Anti-dependency breaking needs to be careful not to use reserved regsJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112832 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Fix a use-after-free.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109468 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. This timeBill Wendling
make sure to allocate enough space in the std::vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15revert bill's patches in an attempt to fix the buildbot.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15Use std::vector instead of a hard-coded array. The length of that array couldBill Wendling
get *very* large, but we only need it to be the size of thenumber of pregs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Make post-ra scheduling, anti-dep breaking, and register scavenger ↵Evan Cheng
(conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106091 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02Not all entries in the range will have an SUnit. Check for that when lookingJim Grosbach
for debug information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105324 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-01Update debug information when breaking anti-dependencies. rdar://7759363Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105300 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-14Remove trailing whitespaceJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Make BreakAntiDependencies' SUnits argument const, and make the BeginDan Gohman
and End arguments by-value rather than by-reference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Fix some more places where dbg_value affected codegen.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06Anti-dependency breaking needs to be careful regarding instructions withJim Grosbach
multiple register definitions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-0680 column and whitespace cleanupJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92837 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04Change errs() to dbgs().David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92490 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-09<rdar://problem/7453528>. Track only physical registers that are valid for ↵David Goodwin
the target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90970 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-20Remove some old experimental code that is no longer needed. Remove ↵David Goodwin
additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-03Do a scheduling pass ignoring anti-dependencies to identify candidate ↵David Goodwin
registers that should be renamed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85939 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26Break anti-dependence breaking out into its own class.David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2026-03-11 15:04:02 +0000