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a8a12b7d98
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1261 Commits

Author SHA1 Message Date
Torok Edwin
a8a12b7d98 Fix PR5262: when folding select into PHI, make sure all operands are available 
in the PHI's Basic Block. This uses a conservative approach, because we don't
have dominator info in instcombine.

llvm-svn: 84754
 2009-10-21 10:49:00 +00:00
Chris Lattner
882034fdaf add a real testcase for PR4313 
llvm-svn: 84676
 2009-10-20 21:04:26 +00:00
Chris Lattner
0737ccf048 add a test similar to that needed for PR4313, but that doesn't 
fail without the patch.

llvm-svn: 84675
 2009-10-20 21:00:47 +00:00
Chris Lattner
ccbe8ab252 the date on this testcase is wrong, it is unreduced, and it passes without the fix for PR4313. 
llvm-svn: 84674
 2009-10-20 20:57:58 +00:00
Chris Lattner
f3be536c0a merge and filecheckize 
llvm-svn: 84672
 2009-10-20 20:39:43 +00:00
Chris Lattner
827cc8fa02 merge two tests and convert to filecheck. 
llvm-svn: 84671
 2009-10-20 20:33:46 +00:00
Chris Lattner
803539f022 alternate fix for PR5258 which avoids worklist problems, with reduced testcase. 
llvm-svn: 84667
 2009-10-20 20:27:49 +00:00
Torok Edwin
bdcd45a9d6 Fix PR5258, jump-threading creating invalid PHIs. 
When an incoming value for a PHI is updated, we must also updated all other
incoming values for the same BB to match, otherwise we create invalid PHIs.

llvm-svn: 84638
 2009-10-20 15:42:00 +00:00
Torok Edwin
3801e755cc Fix PR4313: IPSCCP was not setting the lattice value for the invoke instruction 
when the invoke had multiple return values: it set the lattice value only on the
extractvalue.
This caused the invoke's lattice value to remain the default (undefined), and
later propagated to extractvalue's operand, which incorrectly introduces
undefined behavior.

llvm-svn: 84637
 2009-10-20 15:15:09 +00:00
Dan Gohman
d2e75c9ae0 Fix SplitBlockPredecessors' LoopInfo updating code to handle the case 
where a loop's header is being split and it has predecessors which are not
contained by the most-nested loop which contains the loop.
This fixes PR5235.

llvm-svn: 84505
 2009-10-19 16:04:50 +00:00
Chris Lattner
e7c0e7f1a9 remove a now-pointless regtest 
llvm-svn: 84409
 2009-10-18 05:20:17 +00:00
Chris Lattner
878fd28407 remove testcase for dead pass 
llvm-svn: 84406
 2009-10-18 05:03:41 +00:00
Chris Lattner
2c890dc2b4 Teach vm core to more aggressively fold 'trunc' constantexprs, 
allowing it to simplify the crazy constantexprs in the testcases
down to something sensible.  This allows -std-compile-opts to
completely "devirtualize" the pointers to member functions in
the testcase from PR5176.

llvm-svn: 84368
 2009-10-17 21:53:27 +00:00
Chris Lattner
ebc645ca40 remove # uses from FileCheck lines. 
llvm-svn: 84367
 2009-10-17 21:51:19 +00:00
Chris Lattner
270ab44108 rename test 
llvm-svn: 84364
 2009-10-17 21:31:19 +00:00
Chris Lattner
7f32b72975 Simplify some code (first hunk) and fix PR5208 (second hunk) by 
updating the callgraph when introducing a call.

llvm-svn: 84310
 2009-10-17 05:39:39 +00:00
Victor Hernandez
4d7283f82c Autoupgrade malloc insts to malloc calls. 
Update testcases that rely on malloc insts being present.

Also prematurely remove MallocInst handling from IndMemRemoval and RaiseAllocations to help pass tests in this incremental step.

llvm-svn: 84292
 2009-10-17 00:00:19 +00:00
Victor Hernandez
00adf339dd HeapAllocSRoA also needs to check if malloc array size can be computed. 
llvm-svn: 84288
 2009-10-16 23:12:25 +00:00
Victor Hernandez
0122f679a8 Invert isSafeToGetMallocArraySize check because we return NULL when we don't know the size. 
Thanks to Duncan Sands for noticing this bug.

llvm-svn: 84260
 2009-10-16 18:07:17 +00:00
Duncan Sands
71fecaa52c Check that GVN performs this transform even if the calls 
themselves are not marked readonly, but only the called
functions.

llvm-svn: 84253
 2009-10-16 12:18:23 +00:00
Chris Lattner
a1f5264dd2 make instcombine's instruction sinking more aggressive in the 
presence of PHI nodes.

llvm-svn: 84103
 2009-10-14 15:21:58 +00:00
Chris Lattner
26c670aa44 change simplifycfg to not duplicate 'unwind' instructions. Hopefully 
this will increase the likelihood of common code getting sunk towards
the unwind.

llvm-svn: 83996
 2009-10-13 18:13:05 +00:00
Chris Lattner
f5049b6bb8 convert to filecheck 
llvm-svn: 83995
 2009-10-13 18:10:05 +00:00
Chris Lattner
8ddeaf680a rename test 
llvm-svn: 83994
 2009-10-13 18:08:21 +00:00
Victor Hernandez
21280bc3af Memory dependence analysis was incorrectly stopping to scan for stores to a pointer at bitcast uses of a malloc call. 
It should continue scanning until the malloc call, and this patch fixes that.

llvm-svn: 83931
 2009-10-13 01:42:53 +00:00
Edward O'Callaghan
da365e84bc Missing CHECK: lines makes test exit abnormally. 
llvm-svn: 83835
 2009-10-12 09:01:26 +00:00
Edward O'Callaghan
9393833f23 FileCheck not CheckFile, oops. 
llvm-svn: 83834
 2009-10-12 08:51:28 +00:00
Edward O'Callaghan
13bf3f7804 Convert InstCombine/call.ll to CheckFile. 
llvm-svn: 83833
 2009-10-12 08:46:47 +00:00
Edward O'Callaghan
4d633eaaae Convert the rest of the InstCombine tests from notcast to FileCheck. 
llvm-svn: 83828
 2009-10-12 07:18:14 +00:00
Nick Lewycky
3a206901cb Remove this part of the test, it never actually tested anything anyways. This 
unbreaks make check after evocallaghan's changes.

llvm-svn: 83827
 2009-10-12 06:32:42 +00:00
Edward O'Callaghan
0cc7f5e34a Fix syntax error missed in converting zext.ll test. Convert 2003-11-13-ConstExprCastCall.ll to FileCheck from notcast. 
llvm-svn: 83826
 2009-10-12 06:23:56 +00:00
Edward O'Callaghan
843b0c8830 Convert InstCombine tests from notcast to FileCheck. 
llvm-svn: 83825
 2009-10-12 06:14:06 +00:00
Chris Lattner
cb56deb798 reduce vec_shuffle2 and merge into vec_shuffle. 
llvm-svn: 83807
 2009-10-11 22:54:48 +00:00
Chris Lattner
33bff4602c filecheckize vec_shuffle.ll and merge shuffle.ll into it. 
llvm-svn: 83806
 2009-10-11 22:52:15 +00:00
Chris Lattner
b044bc079a filecheckize 
llvm-svn: 83805
 2009-10-11 22:45:17 +00:00
Chris Lattner
68ac2f7b2c rename test 
llvm-svn: 83804
 2009-10-11 22:44:16 +00:00
Chris Lattner
fa84cccd57 remove old testcase 
llvm-svn: 83803
 2009-10-11 22:42:06 +00:00
Chris Lattner
65bef57da8 merge test into shift.ll, this also eliminates awful grepping on -stats output 
llvm-svn: 83802
 2009-10-11 22:39:58 +00:00
Chris Lattner
bc0f470f07 convert to filecheck. 
llvm-svn: 83801
 2009-10-11 22:36:59 +00:00
Chris Lattner
b033a0ac47 teach instcombine to simplify xor's harder, catching the 
new testcase.

llvm-svn: 83799
 2009-10-11 22:22:13 +00:00
Chris Lattner
c8e0cdb676 convert xor2 to filecheck, merge in a random regtest 
llvm-svn: 83796
 2009-10-11 21:42:08 +00:00
Chris Lattner
100f3ac565 generalize a transformation even more: we don't care whether the 
input the the mul is a zext from bool, just that it is all zeros
other than the low bit.  This fixes some phase ordering issues
that would cause us to miss some xforms in mul.ll when the worklist
is visited differently.

llvm-svn: 83794
 2009-10-11 21:29:45 +00:00
Chris Lattner
40d1618562 simplify a transformation by making it more general. 
llvm-svn: 83792
 2009-10-11 21:22:21 +00:00
Torok Edwin
ed37f33b81 LICM shouldn't sink/delete debug information. Fix this and add a testcase. 
For now the metadata of sinked/hoisted instructions is still wrong, but that'll
be fixed when instructions will have debug metadata directly attached.

llvm-svn: 83786
 2009-10-11 19:15:54 +00:00
Chris Lattner
8ae883b5f0 when folding duplicate conditions, delete the 
now-probably-dead instruction tree feeding it.

llvm-svn: 83778
 2009-10-11 18:39:58 +00:00
Chris Lattner
601cc4c588 implement rdar://7293527, a trivial instcombine that llvm-gcc 
gets but clang doesn't, because it is implemented in GCC's
fold routine.

llvm-svn: 83761
 2009-10-11 07:53:15 +00:00
Chris Lattner
1832a32b78 implement a transformation in jump threading that is currently 
done by condprop, but do it in a much more general form.  The
basic idea is that we can do a limited form of tail duplication
in the case when we have a branch on a phi.  Moving the branch
up in to the predecessor block makes instruction selection
much easier and encourages chained jump threadings.

llvm-svn: 83759
 2009-10-11 07:24:57 +00:00
Chris Lattner
9a90dc5b0c another testcase jump threading shouldn't crash on. 
llvm-svn: 83758
 2009-10-11 07:11:11 +00:00
Chris Lattner
90aeacd46f rename a file, remove a poorly reduced testcase. 
llvm-svn: 83757
 2009-10-11 07:10:28 +00:00
Chris Lattner
525c0272aa make jump threading on a phi with undef inputs happen. 
llvm-svn: 83754
 2009-10-11 04:18:15 +00:00