f9f68b816b
[indvars] Revert r139579 until 401.bzip -arch i386 miscompilation is fixed. PR10920.
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llvm-svn: 139583
2011-09-13 05:23:49 +00:00
061d811c51
Disable IV rewriting by default. See PR10916.
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llvm-svn: 139579
2011-09-13 03:23:21 +00:00
5b28cc84f0
Generalize test case to handle multiple indvars modes.
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llvm-svn: 139578
2011-09-13 03:17:25 +00:00
3de5b8e4c1
[indvars] Fix bugs in floating point IV range checks noticed by inspection.
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llvm-svn: 139574
2011-09-13 01:59:32 +00:00
54a109845d
Conditionalize indvars test that relies on SCEV expansion of geps,
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which is only relevant with canonical IVs
llvm-svn: 139556
2011-09-12 23:13:57 +00:00
a8315c3f2b
indvars test only relevant for -enable-iv-rewrite.
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Otherwise this case is now covered by no-iv-rewrite.ll.
llvm-svn: 139552
2011-09-12 22:59:00 +00:00
d2e61e1f70
Conditionalize indvars tests that rely on SCEV expansion of geps,
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which is relevant with canonical IVs. Anything else being checked by
these tests is already covered by early CSE.
llvm-svn: 139535
2011-09-12 20:26:34 +00:00
30e8db98b8
Removing indvars tests that directly test canonical IVs and nothing else.
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llvm-svn: 139518
2011-09-12 18:33:08 +00:00
183013d8d4
Rename -disable-iv-rewrite to -enable-iv-rewrite=false in preparation for default change.
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llvm-svn: 139517
2011-09-12 18:28:44 +00:00
8c6fb3af6e
Test case for r139453, WidenIV::GetExtendedOperandRecurrence.
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llvm-svn: 139504
2011-09-12 17:20:57 +00:00
ba60b04148
Mark the eh.typeid.for intrinsic as being 'const', which it is inside
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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.
llvm-svn: 139360
2011-09-09 07:50:37 +00:00
524c33a27f
When inlining exception handling code into another function, ensure that
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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.
llvm-svn: 139236
2011-09-07 16:44:14 +00:00
d7430cea10
Forgot to add this trampoline testcase.
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llvm-svn: 139229
2011-09-07 09:21:38 +00:00
58704ee442
Try again at r138809 (make DSE more aggressive in removing dead stores at the end of a function), now with less deleting stores before memcpy's.
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llvm-svn: 139150
2011-09-06 18:14:09 +00:00
a098436b32
Split the init.trampoline intrinsic, which currently combines GCC's
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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.
llvm-svn: 139140
2011-09-06 13:37:06 +00:00
4b79c21ef2
InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match.
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Fixes clang selfhost.
llvm-svn: 139120
2011-09-05 18:16:19 +00:00
29192d042e
Delete trivial landing pads that just continue unwinding the caught
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exception.
llvm-svn: 139117
2011-09-05 12:57:57 +00:00
fd26a954a8
Add some simple insertvalue simplifications, for the purpose of cleaning
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up do-nothing exception handling code produced by dragonegg.
llvm-svn: 139113
2011-09-05 06:52:48 +00:00
4aa2573748
Try to eliminate the use of the 'unwind' instruction.
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llvm-svn: 139046
2011-09-02 22:41:11 +00:00
310a448cfe
Test case update for unroll-scev.
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llvm-svn: 139037
2011-09-02 21:21:03 +00:00
63a3a0e010
Extra CHECK-NOT to make sure that GVN transform works properly.
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llvm-svn: 139012
2011-09-02 17:40:39 +00:00
4a31ba3bae
-unroll-scev flag removal
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llvm-svn: 139010
2011-09-02 17:36:14 +00:00
057d423e4b
ConstantVector returns arbitrary value for the wrong index.
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This fixes PR10813.
llvm-svn: 139006
2011-09-02 15:43:43 +00:00
7470fb01d0
Compare type size instead of type _store_ size to make sure that BitCastInst
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will be valid. This fixes PR10820.
llvm-svn: 139005
2011-09-02 14:57:37 +00:00
723cec7a5f
Update to new EH scheme.
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llvm-svn: 138989
2011-09-02 01:25:11 +00:00
4028a51c74
Fix test; sorry for any inconvenience.
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llvm-svn: 138966
2011-09-01 21:25:42 +00:00
71f5c2f158
Fix an issue with the IR sink pass found by inspection. (I'm not sure anyone is actually using this, but might as well fix it since I found the issue.)
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llvm-svn: 138965
2011-09-01 21:21:24 +00:00
cc6e92892f
Add missing newline.
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llvm-svn: 138964
2011-09-01 21:20:11 +00:00
185d377597
Update to new EH scheme.
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llvm-svn: 138933
2011-09-01 01:28:25 +00:00
d33e3007fa
Update to new EH scheme.
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llvm-svn: 138928
2011-09-01 01:08:21 +00:00
3b17c1b48d
Update to new EH scheme.
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llvm-svn: 138927
2011-09-01 01:02:41 +00:00
e88632d667
Update some tests to the new EH scheme.
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llvm-svn: 138925
2011-09-01 00:58:03 +00:00
080f40a49d
Reenable test.
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llvm-svn: 138916
2011-08-31 23:08:05 +00:00
54b91028f0
Revert accidental commit
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llvm-svn: 138915
2011-08-31 23:07:46 +00:00
c472975fd9
Disable this test until Bill fixes it properly.
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llvm-svn: 138914
2011-08-31 23:03:30 +00:00
5624fe0cff
Update to new EH scheme.
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llvm-svn: 138908
2011-08-31 21:50:07 +00:00
d4e871404d
Update more tests to the new EH scheme.
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llvm-svn: 138903
2011-08-31 21:39:05 +00:00
293c31b81c
Add tests for the transformations SCCP can do on atomic loads and stores (which are safe without any modifications).
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llvm-svn: 138902
2011-08-31 21:37:06 +00:00
e6174a2c85
Update more tests to the new EH scheme.
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llvm-svn: 138894
2011-08-31 21:04:11 +00:00
b1e680fd3f
Update the tests to the new EH scheme.
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llvm-svn: 138891
2011-08-31 20:55:40 +00:00
a45c20b049
Remove the old tail duplication pass. It is not used and is unable to update
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ssa, so it has to be run really early in the pipeline. Any replacement
should probably use the SSAUpdater.
llvm-svn: 138841
2011-08-30 23:03:45 +00:00
b359367a3d
Remove empty file.
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llvm-svn: 138830
2011-08-30 21:17:20 +00:00
e316e5b2ad
Speculatively revert r138809 in an attempt to fix DragonEgg.
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llvm-svn: 138829
2011-08-30 21:11:06 +00:00
d708ec4c6a
When walking backwards to eliminate final stores to allocas at the end of a function, encountering an unrelated store should not cause us to give up like encountering a load does.
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llvm-svn: 138809
2011-08-30 18:51:55 +00:00
e79ce47ad7
Update tests to new EH model. Add landingpad instructions to landing pads.
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llvm-svn: 138759
2011-08-29 20:39:23 +00:00
5fc81ffbac
Fixes following the CR by Chris and Duncan:
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Optimize chained bitcasts of the form A->B->A.
Undo r138722 and change isEliminableCastPair to allow this case.
llvm-svn: 138756
2011-08-29 19:58:36 +00:00
52600ee8c3
Bitcasts are transitive. Bitcast-Bitcast-X becomes Bitcast-X.
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llvm-svn: 138722
2011-08-28 11:51:08 +00:00
ba198e661e
Auto upgrade the old EH scheme to use the new one. This is on a trial basis. If
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things to disasterously over night, this can be reverted.
llvm-svn: 138702
2011-08-27 06:11:03 +00:00
eed1e8905a
Don't sink landingpad instructions during ind-var simplification.
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llvm-svn: 138651
2011-08-26 20:40:15 +00:00
07aeb629ec
Use %% for literals in RUN lines.
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llvm-svn: 138647
2011-08-26 20:09:48 +00:00
Andrew Trick