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2004-03-16Add a better head-of-file comment.Brian Gaeke
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12447 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Bug not fixed after allChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12446 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix testChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12445 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12444 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Punt if we see gigantic PHI nodes. This improves a huge interpreter loopChris Lattner
testcase from 32.5s in -raise to take .3s git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12443 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Do not try to optimize PHI nodes with incredibly high degree. This reduces SCCPChris Lattner
time from 615s to 1.49s on a large testcase that has a gigantic switch statement that all of the blocks in the function go to (an intepreter). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12442 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Do not copy gigantic switch instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12441 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix bug in bug name. It must be the painkillers that I haven't been takingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12440 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Implement a new feature in the CFE, moving a GCC extension from the unsupportedChris Lattner
to the supported list git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12439 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16New testcaseChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12437 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16boog fixedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12436 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix PR296: [execution engines] Unhandled cast constant expressionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12435 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix a regression from this patch:Chris Lattner
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040308/013095.html Basically, this patch only updated the immediate dominatees of the header node to tell them that the preheader also dominated them. In practice, ALL dominatees of the header node are also dominated by the preheader. This fixes: LoopSimplify/2004-03-15-IncorrectDomUpdate. and PR293 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12434 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16New testcase for PR293Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12433 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Bug fixedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12432 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16foo Bug 291, bar PR291Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12431 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16foo bug291 bar PR 291Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12430 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16PR291Chris Lattner
Bug 291! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12429 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16// Testcase from Bug 291Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12428 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Add some missing functions. Make sure to handle calls together in case theChris Lattner
client has another VN implementation that can VN calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12427 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix thinko, and PR292Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12426 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-16Fix PR294Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12425 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Add LAHF instructionAlkis Evlogimenos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12424 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Restore old inlining heuristic. As the comment indicates, this is a nastyChris Lattner
horrible hack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12423 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Ok, the assertion was bogus. Calls that do not read/write memory should notChris Lattner
have an alias set, just like adds and subtracts don't. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12422 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15This assertion is bogus now that calls do not necessarily read/write memoryChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12421 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Add counters for the number of calls elimiantedChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12420 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Implement CSE of call instructions in the most trivial case. This implementsChris Lattner
GCSE/call_cse.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12419 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15New testcase for CSE of call instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12418 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Fix a minor bug, implementing GCSE/call_pure_function.llChris Lattner
Also, add some stuff I missed before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12417 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Make sure that pure calls don't kill loadsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12416 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Implement LICM of calls in simple cases. This is sufficient to move aroundChris Lattner
sin/cos/strlen calls and stuff. This implements: LICM/call_sink_pure_function.ll LICM/call_sink_const_function.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12415 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15New testcases to test LICM of call instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12414 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Don't be COMPLETELY pessimistic in the face of function callsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12413 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Tweak argumentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12412 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Deinline a couple of methods. Improve comment.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12411 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Deinline some virtual methods, provide better mod/ref answers through theChris Lattner
use of the boolean queries git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12410 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Pass through the boolean queriesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12409 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Teach basicaa about some stdc functions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12408 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Add two new methods which can be used to enable a bunch of transformationsChris Lattner
in common cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12407 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Mostly cosmetic improvements. Do fix the bug where a global value was ↵Chris Lattner
considered an input. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12406 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Assert that input blocks meet the invariants we expectChris Lattner
Simplify the input/output finder. All elements of a basic block are instructions. Any used arguments are also inputs. An instruction can only be used by another instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12405 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15New testcase that causes the code extractor to generate bogus code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12404 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-15Fix several bugs in the loop extractor. In particular, subloops were neverChris Lattner
extracted, and a function that contained a single top-level loop never had the loop extracted, regardless of how much non-loop code there was. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12403 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14No correctness fixes here, just minor qoi fixes:Chris Lattner
* Don't insert a branch to the switch instruction after the call, just make it a single block. * Insert the new alloca instructions in the entry block of the original function instead of having them execute dynamically * Don't make the default edge of the switch instruction go back to the switch. The loop extractor shouldn't create new loops! * Give meaningful names to the alloca slots and the reload instructions * Some minor code simplifications git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12402 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14Simplify code a bit, and fix bug CodeExtractor/2004-03-14-NoSwitchSupport.llChris Lattner
This also implements a two minor improvements: * Don't insert live-out stores IN the region, insert them on the code path that exits the region * If the region is exited to the same block from multiple paths, share the switch statement entry, live-out store code, and the basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12401 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14Simplify the code a bit by making the collection of basic blocks to extractChris Lattner
a member of the class. While we're at it, turn the collection into a set instead of a vector to improve efficiency and make queries simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12400 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14New testcase that crashes the loop extractorChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12399 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14After reducing a miscompiled program down to the functions which are beingChris Lattner
miscompiled, try to use the loop extractor to reduce the program down to a loop nest that is being miscompiled. In practice, the loop extractor appears to have too many bugs for this to be useful, but hopefully they will be fixed soon... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12398 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-14Fix a minor bug in runPassesOnChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12397 91177308-0d34-0410-b5e6-96231b3b80d8
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