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2011-05-18Use IRBuilder while simplifying unwind.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131561 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18More instcombine cleanup aimed towards improving debug line info.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Use IRBuilder while simplifying terminator.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131552 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Use IRBuilder while simplifying unconditional branch.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131551 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Use IRBuilder while folding two entry PHINode.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131548 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Switch more inst insertion in instcombine to IRBuilder.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131547 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Set up IRBuilder for use during simplification.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131545 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Switch more inst insertion in instcombine to IRBuilder.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131544 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18fix typoMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131543 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Switch inst insertion in instcombine transform to IRBuilder.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131542 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Use IRBuiler while constant folding terminator.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131541 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Fix inelegant initialization.Stuart Hastings
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Revert commit 131534 since it seems to have broken several buildbots.Duncan Sands
Original log entry: Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' code in one place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'Nadav Rotem
code in one place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131534 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Start trying to make InstCombine preserve more debug info. The idea here is ↵Eli Friedman
to set the debug location on the IRBuilder, which will be then right location in most cases. This should magically give many transformations debug locations, and fixing places which are missing a debug location will usually just means changing the code creating it to use the IRBuilder. As an example, the change to InstCombineCalls catches a common case where a call to a bitcast of a function is rewritten. Chris, does this approach look reasonable? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131516 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-18Use ReplaceInstUsesWith instead of replaceAllUsesWith where appropriate in ↵Eli Friedman
instcombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131512 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Preseve line numbers while simplifying CFG.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131508 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Conditionalize the format of the GCOV files by target type. Darwin uses the 4.2Bill Wendling
format. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131503 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17X86 pmovsx/pmovzx ignore the upper half of their inputs.Stuart Hastings
rdar://problem/6945110 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131493 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Preserve line number information.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131482 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Set debug loc for new load instruction.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131481 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-17Preserve line number information.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131480 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16There is no need to force DebugLoc on a PHI at this point.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131427 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Preserve debug info for unused zero extended boolean argument.Devang Patel
Radar 9422775. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131422 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16Don't do tail calls in a function that call setjmp. The stack might beRafael Espindola
corrupted when setjmp returns again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14SimplifyCFG: Use ComputeMaskedBits to prune dead cases from switch instructions.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131345 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-14Avoid combining GEPs that might overflow at runtime.Stuart Hastings
rdar://problem/9267970 Patch by Julien Lerouge! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131339 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Fix a source of non determinism in FindUsedTypes, use a SetVector instead of aJulien Lerouge
set. rdar://9423996 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131283 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-13Convert SimplifyIVUsers into a worklist instead of a single pass overAndrew Trick
the users. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131277 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-12indvars: Added SimplifyIVUsers.Andrew Trick
Interleave IV simplifications. Currently involves EliminateComparison and EliminateRemainder. Next I'll add EliminateExtend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131210 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-10Preserve line number information.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-06Fix PR9820: a read-only call differs from a load in that a load doesn'tDuncan Sands
return the pointer being dereferenced, it returns the pointee, but a call might return the pointer itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130979 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05The computation of string length is not that complicated. Fix it, again. :)Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130967 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05PR9838: Fix transform introduced in r127064 to not trigger when only one ↵Eli Friedman
side of the icmp is an exact shift. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130954 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Update the gcov version used slightly, to make it stop causing modern gcov's toNick Lewycky
crash. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Remove dead function.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130903 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05When the path wasn't emitted by the frontend, discard any path on the sourceNick Lewycky
filename. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130897 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Set debug loc for new instructions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Set debug location for new PHI nodes created in exit block. Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130894 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Preserve line number information while threading jumps.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130880 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Preserve line number info.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04preserve line number info.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130869 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04Emit gcov data files to the directory specified in the metadata produced by theNick Lewycky
frontend, if applicable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-04indvars: Added DisableIVRewrite and WidenIVs.Andrew Trick
This adds functionality to remove size/zero extension during indvars without generating a canonical IV and rewriting all IV users. It's disabled by default so should have no effect on codegen. Work in progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-03indvars: Added canExpandBackEdgeTakenCount.Andrew Trick
Only create a canonical IV for backedge taken count if it will actually be used by LinearFunctionTestReplace. And some related cleanup, preparing to reduce dependence on canonical IVs. No significant effect on x86 or arm in the test-suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130799 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-03Remove unused variables caught by GCC's -Wunused-but-set-variable.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130755 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-03Add an unfolded offset field to LSR's Formula record. This is used toDan Gohman
model constants which can be added to base registers via add-immediate instructions which don't require an additional register to materialize the immediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130743 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Scanning entire basic block may be too expensive in terms of compile time. ↵Devang Patel
Instead, just use whatever location info first non-phi instruction has. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130729 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Remove unused variable.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Move some rem transforms out of instcombine and into instsimplify.Duncan Sands
This automagically provides a transform noticed by my super-optimizer as occurring quite often: "rem x, (select cond, x, 1)" -> 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130694 91177308-0d34-0410-b5e6-96231b3b80d8
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