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1070 Commits

Author SHA1 Message Date
Eric Christopher
68c23f8616 Temporarily revert r110987 as it's causing some miscompares in 
vector heavy code.  I'll re-enable when we've tracked down the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111318 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:55:27 +00:00
Nate Begeman
7f1f4089a1 Reapply this transformation now that it is passing the external test which it previously failed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-13 00:17:53 +00:00
Eric Christopher
7486278900 Temporarily revert 110737 and 110734, they were causing failures 
in an external testsuite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110905 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-12 07:01:22 +00:00
Nate Begeman
e32ea923de Add test for recent instcombine vector shuffle enhancement 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110737 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-10 21:58:00 +00:00
Eli Friedman
4fffb345ed PR7853: fix a silly mistake introduced in r101899, and add a test to make sure 
it doesn't regress again.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-09 20:49:43 +00:00
Dan Gohman
0fd353376b Make instcombine set explicit alignments on load or store 
instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110128 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-03 18:20:32 +00:00
Owen Anderson
61378363b7 Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110036 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-02 09:32:13 +00:00
Daniel Dunbar
10b173a1e7 Speculatively revert r108614, "Another attempt at getting the clang self-host to 
like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
 - Also PR7719.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-31 19:51:11 +00:00
Owen Anderson
aa52fd10ab Testcase for r108687. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-19 08:14:26 +00:00
Owen Anderson
7e3012c345 Another attempt at getting the clang self-host to like my instcombine patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-17 06:56:35 +00:00
Eric Christopher
de309a8b52 Also revert 108422, it's causing some test failures. 
Working on testcases for Owen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108494 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-16 01:36:12 +00:00
Owen Anderson
96fe621e07 Reapply r108378, with bugfixes, testcase, and improved comment formatting. 
This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108422 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-15 15:00:23 +00:00
Chris Lattner
07c9b64719 revert r108320, I see the failures now... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108322 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-14 06:16:35 +00:00
Chris Lattner
7e185af930 reapply benjamin's instcombine patch, I don't see anything wrong with it and can't repro any problems with a manual self-host. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-14 05:59:13 +00:00
Benjamin Kramer
c9fe6374b7 Nope, still breaks the release selfhost bots :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 16:38:48 +00:00
Benjamin Kramer
8fd437c43f Reapply the "or" half of r108136, which seems to be less problematic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 16:15:48 +00:00
Benjamin Kramer
e2d07b5208 Revert r108141 again, sigh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 14:42:04 +00:00
Benjamin Kramer
98a8206e58 Reapply 108136 with an ugly pasto fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 13:44:00 +00:00
Benjamin Kramer
0cc4ed1ca5 Revert r108136 until I figure out why it broke selfhost. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108139 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 12:35:49 +00:00
Benjamin Kramer
4fc719e607 instcombine: fold (x & y) | (~x & z) and (x & y) ^ (~x & z) into ((y ^ z) & x) ^ z which is one instruction shorter. (PR6773) 
before:
  %and = and i32 %y, %x
  %neg = xor i32 %x, -1
  %and4 = and i32 %z, %neg
  %xor = xor i32 %and4, %and

after:
  %xor1 = xor i32 %z, %y
  %and2 = and i32 %xor1, %x
  %xor = xor i32 %and2, %z


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108136 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 11:54:45 +00:00
Chris Lattner
dfd3626b47 fix PR7311 by avoiding breaking casts when a bitcast from scalar->vector 
is involved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108117 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 01:19:22 +00:00
Chris Lattner
eae2895120 fix PR7429, a crash turning a load from a string into a float. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108113 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 00:22:51 +00:00
Chris Lattner
ddef83536c convert to filechecconvert to filecheckk 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 00:21:10 +00:00
Chris Lattner
243a73d0e6 merge two tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 00:19:47 +00:00
Benjamin Kramer
1db071f0da Teach instcombine to transform 
(X >s -1) ? C1 : C2 and (X <s  0) ? C2 : C1
into ((X >>s 31) & (C2 - C1)) + C1, avoiding the conditional.

This optimization could be extended to take non-const C1 and C2 but we better
stay conservative to avoid code size bloat for now.

for
int sel(int n) {
     return n >= 0 ? 60 : 100;
}

we now generate
  sarl  $31, %edi
  andl  $40, %edi
  leal  60(%rdi), %eax

instead of
  testl %edi, %edi
  movl  $60, %ecx
  movl  $100, %eax
  cmovnsl %ecx, %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 11:39:10 +00:00
Dan Gohman
0dd3549edc Constant fold x == undef to undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107074 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-28 21:30:07 +00:00
Rafael Espindola
1e81966626 Remove arm_apcscc from the test files. It is the default and doing this 
matches what llvm-gcc and clang now produce.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106221 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 15:18:27 +00:00
Dan Gohman
05d6253727 Teach instcombine to promote alloca array sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104945 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-28 15:09:00 +00:00
Dan Gohman
8496d50412 Add a testcase for getelementptr index promotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-28 15:07:59 +00:00
Duncan Sands
1d9b973fd7 Teach instCombine to remove malloc+free if malloc's only uses are comparisons 
to null.  Patch by Matti Niemenmaa.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104871 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-27 19:09:06 +00:00
Chris Lattner
6745191070 Teach instcombine to transform a bitcast/(zext|trunc)/bitcast sequence 
with a vector input and output into a shuffle vector.  This sort of 
sequence happens when the input code stores with one type and reloads
with another type and then SROA promotes to i96 integers, which make
everyone sad.

This fixes rdar://7896024



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-08 21:50:26 +00:00
Nick Lewycky
a370a44a76 Fix declarations in a few more tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101676 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 21:29:25 +00:00
Eric Christopher
67a71b5306 Verify function prototypes before trying to optimize functions. We also 
need TargetData, just return false if we don't have it.

Update testcases accordingly.

Fixes PR6807.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-12 04:48:00 +00:00
Dan Gohman
29e13e0c18 Print empty structs as {} rather than { }. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100787 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 18:03:05 +00:00
Chris Lattner
d2075586c8 add newlines at the end of files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-07 22:53:17 +00:00
Mon P Wang
20adc9dc46 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-04 03:10:48 +00:00
Mon P Wang
e754d3fb85 Revert r100191 since it breaks objc in clang 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-02 18:43:02 +00:00
Mon P Wang
e33c848fa4 Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-02 18:04:15 +00:00
Bob Wilson
100f090add Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 22:27:04 +00:00
Mon P Wang
808bab0169 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset, 
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-30 20:55:56 +00:00
Evan Cheng
9d8f002d8f Fix an incorrect logic causing instcombine to miss some _chk -> non-chk transformations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 06:06:09 +00:00
Evan Cheng
0af20d847a Fix a typo in ValueTracking that's causing instcombine to delete needed shift instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98416 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-13 02:20:29 +00:00
Duncan Sands
890edda7c2 When constant folding GEP of GEP, do not crash if an index of 
the inner GEP is not a ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98359 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-12 17:55:20 +00:00
Evan Cheng
687fed3530 Re-commit 97860 with fix. getMallocAllocatedType may return null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98000 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:54:36 +00:00
Eric Christopher
27ceaa13f8 Migrate _chk call lowering from SimplifyLibCalls to InstCombine. Stub 
out the remainder of the calls that we should lower in some way and
move the tests to the new correct directory. Fix up tests that are now
optimized more than they were before by -instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 10:50:38 +00:00
Eric Christopher
75f0d6953a Temporarily revert: 
Log:
Transform @llvm.objectsize to integer if the argument is a result of malloc of known size.

Modified:
   llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp
   llvm/trunk/test/Transforms/InstCombine/objsize.ll

It appears to be causing swb and nightly test failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 03:11:35 +00:00
Evan Cheng
fc8ccfedbb Transform @llvm.objectsize to integer if the argument is a result of malloc of known size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 01:01:42 +00:00
Evan Cheng
a862326bc7 Instcombine should turn llvm.objectsize of a alloca with static size to an integer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97827 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 20:47:23 +00:00
Chris Lattner
4c5fb1a311 fix PR6512, a case where instcombine would incorrectly merge loads 
from different addr spaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97813 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 18:53:28 +00:00
Chris Lattner
f34f48c578 Fix PR6503. This turned into a much more interesting and nasty bug. Various 
parts of the cmp|cmp and cmp&cmp folding logic wasn't prepared for vectors
(unrelated to the bug but noticed while in the code) and the code was 
*definitely* not safe to use by the (cast icmp)|(cast icmp) handling logic
that I added in r95855.  Fix all this up by changing the various routines
to more consistently use IRBuilder and not pass in the I which had the wrong 
type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97801 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 08:46:26 +00:00