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2011-09-15Make demanded-elt simplification for shufflevector slightly stronger. ↵Eli Friedman
Spotted by inspection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139768 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-14objc_retainBlock is not NoModRef because it can update forwarding pointersDan Gohman
in memory relevant to the optimizer. rdar://10050579. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13[indvars] Revert r139579 until 401.bzip -arch i386 miscompilation is fixed. ↵Andrew Trick
PR10920. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139583 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Disable IV rewriting by default. See PR10916.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139579 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13Generalize test case to handle multiple indvars modes.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139578 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-13[indvars] Fix bugs in floating point IV range checks noticed by inspection.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139574 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Conditionalize indvars test that relies on SCEV expansion of geps,Andrew Trick
which is only relevant with canonical IVs git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12indvars test only relevant for -enable-iv-rewrite.Andrew Trick
Otherwise this case is now covered by no-iv-rewrite.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139552 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Conditionalize indvars tests that rely on SCEV expansion of geps,Andrew Trick
which is relevant with canonical IVs. Anything else being checked by these tests is already covered by early CSE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139535 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Removing indvars tests that directly test canonical IVs and nothing else.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Rename -disable-iv-rewrite to -enable-iv-rewrite=false in preparation for ↵Andrew Trick
default change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139517 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-12Test case for r139453, WidenIV::GetExtendedOperandRecurrence.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139504 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-09Mark the eh.typeid.for intrinsic as being 'const', which it is insideDuncan Sands
any given function. As pointed out by John McCall, this is needed to have redundant eh.typeid.for tests be eliminated in the presence of cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139360 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-07When inlining exception handling code into another function, ensure thatDuncan Sands
duplicate tests are eliminated (for example if the two functions both have a catch clause catching the same type, ensure the redundant one is removed). Note that it would probably be safe to say that eh.typeid.for is 'const', but since two calls to it with the same argument can give different results (but only if the calls are in different functions), it seems more correct to mark it only 'pure'; this doesn't get in the way of the optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139236 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-07Forgot to add this trampoline testcase.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139229 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Try again at r138809 (make DSE more aggressive in removing dead stores at ↵Owen Anderson
the end of a function), now with less deleting stores before memcpy's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139150 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-06Split the init.trampoline intrinsic, which currently combines GCC'sDuncan Sands
init.trampoline and adjust.trampoline intrinsics, into two intrinsics like in GCC. While having one combined intrinsic is tempting, it is not natural because typically the trampoline initialization needs to be done in one function, and the result of adjust trampoline is needed in a different (nested) function. To get around this llvm-gcc hacks the nested function lowering code to insert an additional parent variable holding the adjust.trampoline result that can be accessed from the child function. Dragonegg doesn't have the luxury of tweaking GCC code, so it stored the result of adjust.trampoline in the memory GCC set aside for the trampoline itself (this is always available in the child function), and set up some new memory (using an alloca) to hold the trampoline. Unfortunately this breaks Go which allocates trampoline memory on the heap and wants to use it even after the parent has exited (!). Rather than doing even more hacks to get Go working, it seemed best to just use two intrinsics like in GCC. Patch mostly by Sanjoy Das. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the ↵Benjamin Kramer
original value if types don't match. Fixes clang selfhost. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139120 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05Delete trivial landing pads that just continue unwinding the caughtDuncan Sands
exception. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139117 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05Add some simple insertvalue simplifications, for the purpose of cleaningDuncan Sands
up do-nothing exception handling code produced by dragonegg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139113 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Try to eliminate the use of the 'unwind' instruction.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139046 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Test case update for unroll-scev.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139037 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Extra CHECK-NOT to make sure that GVN transform works properly.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139012 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02-unroll-scev flag removalAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139010 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02ConstantVector returns arbitrary value for the wrong index.Jakub Staszak
This fixes PR10813. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139006 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Compare type size instead of type _store_ size to make sure that BitCastInstJakub Staszak
will be valid. This fixes PR10820. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-02Update to new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Fix test; sorry for any inconvenience.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138966 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Fix an issue with the IR sink pass found by inspection. (I'm not sure ↵Eli Friedman
anyone is actually using this, but might as well fix it since I found the issue.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138965 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Add missing newline.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138964 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Update to new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138933 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Update to new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138928 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Update to new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138927 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-01Update some tests to the new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Reenable test.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138916 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Revert accidental commitBill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Disable this test until Bill fixes it properly.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Update to new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138908 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Update more tests to the new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138903 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Add tests for the transformations SCCP can do on atomic loads and stores ↵Eli Friedman
(which are safe without any modifications). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138902 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Update more tests to the new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138894 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-31Update the tests to the new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138891 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30Remove the old tail duplication pass. It is not used and is unable to updateRafael Espindola
ssa, so it has to be run really early in the pipeline. Any replacement should probably use the SSAUpdater. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138841 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30Remove empty file.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30Speculatively revert r138809 in an attempt to fix DragonEgg.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30When walking backwards to eliminate final stores to allocas at the end of a ↵Owen Anderson
function, encountering an unrelated store should not cause us to give up like encountering a load does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29Update tests to new EH model. Add landingpad instructions to landing pads.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138759 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-29Fixes following the CR by Chris and Duncan:Nadav Rotem
Optimize chained bitcasts of the form A->B->A. Undo r138722 and change isEliminableCastPair to allow this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138756 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28Bitcasts are transitive. Bitcast-Bitcast-X becomes Bitcast-X.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138722 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Auto upgrade the old EH scheme to use the new one. This is on a trial basis. IfBill Wendling
things to disasterously over night, this can be reverted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138702 91177308-0d34-0410-b5e6-96231b3b80d8
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