58109abe91
[InstCombine] use m_APInt to allow icmp ult X, C folds for splat constant vectors
...
llvm-svn: 281107
2016-09-09 21:59:37 +00:00
9b40f98357
[InstCombine] use m_APInt to allow icmp (and (sh X, Y), C2), C1 folds for splat constant vectors
...
llvm-svn: 280873
2016-09-07 22:33:03 +00:00
def931e76a
[InstCombine] allow icmp (and X, C2), C1 folds for splat constant vectors
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This is a revert of r280676 which was a revert of r280637;
ie, this is r280637 again. It was speculatively reverted to
help debug buildbot failures.
llvm-svn: 280861
2016-09-07 20:50:44 +00:00
46f9df5b71
[InstCombine] revert r280637 because it causes test failures on an ARM bot
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http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15/builds/14952/steps/ninja%20check%201/logs/FAIL%3A%20LLVM%3A%3Aicmp.ll
llvm-svn: 280676
2016-09-05 22:36:32 +00:00
c641e9d6ff
[InstCombine] allow icmp (and X, C2), C1 folds for splat constant vectors
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The code to calculate 'UsesRemoved' could be simplified.
As-is, that code is a victim of PR30273:
https://llvm.org/bugs/show_bug.cgi?id=30273
llvm-svn: 280637
2016-09-04 20:58:27 +00:00
541aef4661
[InstCombine] allow icmp (div X, Y), C folds for splat constant vectors
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Converting all of the overflow ops to APInt looked risky, so I've left that as a TODO.
llvm-svn: 280299
2016-08-31 21:57:21 +00:00
5c5311f4e5
[InstCombine] use m_APInt to allow icmp (and X, Y), C folds for splat constant vectors
...
llvm-svn: 279937
2016-08-28 18:18:00 +00:00
d398d4a39e
[InstCombine] use m_APInt to allow icmp eq/ne (shr X, C2), C folds for splat constant vectors
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llvm-svn: 279677
2016-08-24 22:22:06 +00:00
a392049419
[InstCombine] use m_APInt to allow icmp (shr exact X, Y), 0 folds for splat constant vectors
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llvm-svn: 279472
2016-08-22 20:45:06 +00:00
643d21a62c
[InstCombine] use m_APInt to allow icmp (shl X, Y), C folds for splat constant vectors, part 4
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This concludes the fixes for icmp+shl in this series:
https://reviews.llvm.org/rL279339
https://reviews.llvm.org/rL279398
https://reviews.llvm.org/rL279399
llvm-svn: 279401
2016-08-21 17:10:07 +00:00
7e09f13fed
[InstCombine] use m_APInt to allow icmp (shl X, Y), C folds for splat constant vectors, part 2
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This is a partial enablement (move the ConstantInt guard down).
llvm-svn: 279398
2016-08-21 16:28:22 +00:00
fa7de606c4
[InstCombine] use m_APInt to allow icmp (shl X, Y), C folds for splat constant vectors, part 1
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This is a partial enablement (move the ConstantInt guard down) because there are many
different folds here and one of the later ones will require reworking 'isSignBitCheck'.
llvm-svn: 279339
2016-08-19 22:33:26 +00:00
a871d3872a
Fix regression in InstCombine introduced by r278944
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The intended transform is:
// Simplify icmp eq (or (ptrtoint P), (ptrtoint Q)), 0
// -> and (icmp eq P, null), (icmp eq Q, null).
P and Q are both pointer types, but may have different types. We need
two calls to getNullValue() to make the icmps.
llvm-svn: 279271
2016-08-19 16:53:18 +00:00
a867afe094
[InstCombine] use m_APInt to allow icmp (shl 1, Y), C folds for splat constant vectors
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llvm-svn: 279266
2016-08-19 16:12:16 +00:00
57b12d3876
[InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors
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Of course, we really need to refactor and fix all of the cmp predicates,
but this one is interesting because without it, we later perform an
information-losing transform of icmp (shl 1, Y), C, and we can't recover
the better fold.
llvm-svn: 279263
2016-08-19 15:40:44 +00:00
78111a7617
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 279259
2016-08-19 15:27:28 +00:00
14cdf1968f
[InstCombine] add missing tests for basic icmp folds
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These are implicitly included as part of larger test cases, but they don't
exist stand-alone (and don't happen for vectors...).
llvm-svn: 279257
2016-08-19 15:21:45 +00:00
6347807f87
[InstCombine] use m_APInt to allow icmp (mul X, Y), C folds for splat constant vectors
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This is a sibling of:
https://reviews.llvm.org/rL278859
https://reviews.llvm.org/rL278935
https://reviews.llvm.org/rL278945
https://reviews.llvm.org/rL279066
llvm-svn: 279077
2016-08-18 15:44:44 +00:00
4c5e60d95c
[InstCombine] use m_APInt to allow icmp (xor X, Y), C folds for splat constant vectors
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This is a sibling of:
https://reviews.llvm.org/rL278859
https://reviews.llvm.org/rL278935
https://reviews.llvm.org/rL278945
llvm-svn: 279066
2016-08-18 14:10:48 +00:00
3c92db7560
[InstCombine] add test for missing vector icmp fold
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Also, add a scalar test to demonstrate one of the intermediate folds that
is necessary to accomplish the existing, multi-step test. And simplify
the vector tests to only check the final piece of that multi-step transform.
llvm-svn: 278995
2016-08-17 22:18:57 +00:00
4f7eb2aa95
[InstCombine] use m_APInt to allow icmp (add X, Y), C folds for splat constant vectors
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This is a sibling of:
https://reviews.llvm.org/rL278859
llvm-svn: 278935
2016-08-17 15:24:30 +00:00
e47df1ac62
[InstCombine] use m_APInt to allow icmp (sub X, Y), C folds for splat constant vectors
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llvm-svn: 278859
2016-08-16 21:53:19 +00:00
46a68ba618
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 278768
2016-08-16 00:48:38 +00:00
f1bf21c56b
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 278765
2016-08-16 00:27:12 +00:00
df77a4dbb0
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 278757
2016-08-15 22:43:52 +00:00
41520e1712
[InstCombine] add tests for missing vector icmp folds
...
llvm-svn: 278751
2016-08-15 21:47:50 +00:00
3e9acec2fa
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 278737
2016-08-15 20:56:11 +00:00
b37bd6d7b7
[InstCombine] add test for missing vector icmp fold
...
llvm-svn: 278727
2016-08-15 20:02:40 +00:00
2044a8eba9
[InstCombine] add tests for missing vector icmp folds
...
llvm-svn: 278709
2016-08-15 18:45:10 +00:00
d391b0d69e
[InstCombine] add tests for missing vector icmp folds
...
llvm-svn: 278704
2016-08-15 18:26:56 +00:00
a7b9bb3785
[InstCombine] add tests for missing vector icmp folds
...
llvm-svn: 278683
2016-08-15 17:10:35 +00:00
ba1f9fbddc
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 278634
2016-08-14 22:28:50 +00:00
f6559404d5
[InstCombine] remove unnecessary function attributes from tests
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llvm-svn: 278633
2016-08-14 21:48:21 +00:00
b44ca3bfa9
[InstCombine] add tests for missing vector icmp folds
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llvm-svn: 278632
2016-08-14 21:36:22 +00:00
9f36a2d54b
add tests for missing vector icmp folds
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llvm-svn: 278132
2016-08-09 16:39:05 +00:00
3bade138b5
[InstCombine] use m_APInt to allow icmp eq (mul X, C1), C2 folds for splat constant vectors
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This concludes the splat vector enhancements for foldICmpEqualityWithConstant().
Other commits in this series:
https://reviews.llvm.org/rL277762
https://reviews.llvm.org/rL277752
https://reviews.llvm.org/rL277738
https://reviews.llvm.org/rL277731
https://reviews.llvm.org/rL277659
https://reviews.llvm.org/rL277638
https://reviews.llvm.org/rL277629
llvm-svn: 277779
2016-08-04 22:19:27 +00:00
d938e88e89
[InstCombine] use m_APInt to allow icmp eq (and X, C1), C2 folds for splat constant vectors
...
llvm-svn: 277762
2016-08-04 20:05:02 +00:00
b3de75d3a0
[InstCombine] use m_APInt to allow icmp eq (or X, C1), C2 folds for splat constant vectors
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llvm-svn: 277752
2016-08-04 19:12:12 +00:00
9d591d15ec
[InstCombine] use m_APInt to allow icmp eq (sub C1, X), C2 folds for splat constant vectors
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llvm-svn: 277731
2016-08-04 15:19:25 +00:00
00a324e893
[InstCombine] use m_APInt to allow icmp eq (add X, C1), C2 folds for splat constant vectors
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llvm-svn: 277659
2016-08-03 22:08:44 +00:00
e063ddb347
add tests for icmp vector folds
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llvm-svn: 276482
2016-07-22 22:19:52 +00:00
cbc4377af1
add tests for icmp vector folds
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llvm-svn: 276476
2016-07-22 21:28:20 +00:00
97e61dcc2d
add tests for icmp vector folds
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llvm-svn: 276475
2016-07-22 21:13:08 +00:00
296a776a5b
add tests for icmp vector folds
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llvm-svn: 276464
2016-07-22 20:11:08 +00:00
8fd5978811
Revert "Revert "Revert "InstCombine: Reduce trunc (shl x, K) width."""
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This seems to be causing an infinite loop / crash in instcombine
on some bots.
llvm-svn: 273069
2016-06-17 23:36:38 +00:00
d76efc14b9
Revert "Revert "InstCombine: Reduce trunc (shl x, K) width.""
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Reapply r272987. Condition should be in terms of the destination type,
and the flags should not be copied.
llvm-svn: 273045
2016-06-17 20:33:53 +00:00
ce56f7bbaa
Revert "InstCombine: Reduce trunc (shl x, K) width."
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This reverts commit r272987.
This might be causing crashes on some bots.
llvm-svn: 272990
2016-06-17 06:28:53 +00:00
028fd50642
InstCombine: Reduce trunc (shl x, K) width.
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llvm-svn: 272987
2016-06-17 04:43:22 +00:00
22b01febd4
[InstCombine] add another test for wrong icmp constant (PR27792)
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It doesn't matter if the comparison is unsigned; the inc/dec is always signed.
llvm-svn: 269831
2016-05-17 20:20:40 +00:00
de96f39392
[InstCombine] add test for wrong icmp constant (PR27792)
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The code fix for this was checked in at r269797.
llvm-svn: 269803
2016-05-17 19:25:55 +00:00
Sanjay Patel