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8776 Commits

Author SHA1 Message Date
Chris Lattner
ad6b1fdaf9 optimize strstr, PR5783 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91438 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 19:14:40 +00:00
Mikhail Glushenkov
f8bc1e4b27 Convert llvmc tests to FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91420 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 07:21:14 +00:00
Mikhail Glushenkov
545f96814b Support hook invocation from 'append_cmd'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91419 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 07:20:50 +00:00
Kenneth Uildriks
76df3f398c For fastcc on x86, let ECX be used as a return register after EAX and EDX 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91410 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 03:27:52 +00:00
Evan Cheng
d7760a4905 Disable 91381 for now. It's miscompiling ARMISelDAG2DAG.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91405 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 03:07:11 +00:00
Mikhail Glushenkov
e4ac23a0ff Validate the generated C++ code in llvmc tests. 
Checks that the code generated by 'tblgen --emit-llvmc' can be actually
compiled. Also fixes two bugs found in this way:

- forward_transformed_value didn't work with non-list arguments
- cl::ZeroOrOne is now called cl::Optional

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 03:04:52 +00:00
Mikhail Glushenkov
b5fab402d0 Pipe 'grep' output to 'count'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91403 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 03:04:14 +00:00
Mikhail Glushenkov
abf2d986c9 Allow $CALL(Hook, '$INFILE') for non-join tools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91402 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 03:04:02 +00:00
Evan Cheng
9818c043d2 Make 91378 more conservative. 
1. Only perform (zext (shl (zext x), y)) -> (shl (zext x), y) when y is a constant. This makes sure it remove at least one zest.
2. If the shift is a left shift, make sure the original shift cannot shift out bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91399 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 03:00:32 +00:00
Evan Cheng
ad9c0a3d8b Use sbb x, x to materialize carry bit in a GPR. The result is all one's or all zero's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:53:42 +00:00
Evan Cheng
8acb3100de Fold (zext (and x, cst)) -> (and (zext x), cst). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:52:11 +00:00
Evan Cheng
99b653c36f Propagate zest through logical shift. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91378 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:41:36 +00:00
Dan Gohman
2e141d744e Fix integer cast code to handle vector types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 23:40:38 +00:00
Eric Christopher
38e1074c53 Add radar fixed in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91312 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:07:25 +00:00
Shantonu Sen
bc1c99c4fb Remove empty file completely 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91277 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 14:15:15 +00:00
Chris Lattner
a59adc4015 revert r91184, because it causes a crash on a .bc file I just 
sent to Bob.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91268 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 05:11:02 +00:00
Mikhail Glushenkov
0898d7d4a5 Add a test for the 'init' option property. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91259 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 04:06:38 +00:00
Evan Cheng
dd99f3a7dc Disable r91104 for x86. It causes partial register stall which pessimize code in 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91223 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 20:03:14 +00:00
Benjamin Kramer
7b3f1a21ea Fix some CHECK lines which were ignored by accident. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91214 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-12 09:25:50 +00:00
Bob Wilson
73a1b67cb9 Revise scalar replacement to be more flexible about handle bitcasts and GEPs. 
While scanning through the uses of an alloca, keep track of the current offset
relative to the start of the alloca, and check memory references to see if
the offset & size correspond to a component within the alloca.  This has the
nice benefit of unifying much of the code from isSafeUseOfAllocation,
isSafeElementUse, and isSafeUseOfBitCastedAllocation.  The code to rewrite
the uses of a promoted alloca, after it is determined to be safe, is
reorganized in the same way.

Also, when rewriting GEP instructions, mark them as "in-bounds" since all the
indices are known to be safe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91184 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 23:47:40 +00:00
Anton Korobeynikov
8d1ffbd1ad Lower setcc branchless, if this is profitable. 
Based on the patch by Brian Lucas!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 23:01:29 +00:00
Dan Gohman
87862e77bb Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91158 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 21:31:27 +00:00
Dan Gohman
192db0027c Change this to the correct PR number. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91148 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 20:09:21 +00:00
Dan Gohman
050959cd08 Make getUniqueExitBlocks's precondition assert more precise, to 
avoid spurious failures. This fixes PR5758.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 20:05:23 +00:00
Dan Gohman
a4f9cc4e55 Fix the result type of SELECT nodes lowered from Select instructions with 
aggregate return values. This fixes PR5754.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:50:50 +00:00
Anton Korobeynikov
817a46454a Honour setHasCalls() set from isel. 
This is used in some weird cases like general dynamic TLS model.
This fixes PR5723

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 19:39:55 +00:00
Evan Cheng
50d070561e Tests for 91103 and 91104. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91105 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-11 06:02:21 +00:00
Eric Christopher
072f6fe196 Add a test for the fix in revision 91009. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91062 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 21:11:40 +00:00
Evan Cheng
6fd78ec8a2 It's not safe to coalesce a move where src and dst registers have different subregister indices. e.g.: 
%reg16404:1<def> = MOV8rr %reg16412:2<kill>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91061 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 20:59:45 +00:00
Chris Lattner
16f244e982 Fix PR5744, a case where we were getting the pointer size instead of the 
value size.  This only manifested when memdep inprecisely returns clobber,
which is do to a caching issue in the PR5744 testcase.  We can 'efficiently
emulate' this by using '-no-aa'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:11:45 +00:00
Evan Cheng
ce72f3fbdf Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 22:24:42 +00:00
Evan Cheng
c363094e04 Optimize splat of a scalar load into a shuffle of a vector load when it's legal. e.g. 
vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>

iff ptr is 16-byte aligned (or can be made into 16-byte aligned).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 21:00:30 +00:00
Chris Lattner
af064aeee6 fix hte last remaining known (by me) phi translation bug. When we reanalyze 
clobbers to forward pieces of large stores to small loads, we need to consider
the properly phi translated pointer in the store block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90978 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:21:46 +00:00
Chris Lattner
4d3a16f81b Add a minor optimization: if we haven't changed the operands of an 
add, there is no need to scan the world to find the same add again.
This invalidates the previous testcase, which wasn't wonderful anyway,
because it needed a run of instcombine to permute the use-lists in 
just the right way to before GVN was run (so it was really fragile).
Not a big loss.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:27:45 +00:00
Chris Lattner
eddc65aa0d fix PR5733, a case where we'd replace an add with a lexically identical 
binary operator that wasn't an add.  In this case, a xor.  Whoops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:18:49 +00:00
Chris Lattner
1a247f32dd merge crash-2.ll into crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90969 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 17:17:26 +00:00
Chris Lattner
55fe79f044 the code in GVN that tries to forward large loads to small 
stores is not phi translating, thus it miscompiles really
crazy testcases.  This is from inspection, I haven't seen
this in the wild.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90930 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 02:43:05 +00:00
Chris Lattner
05e15f8897 Switch GVN and memdep to use PHITransAddr, which correctly handles 
phi translation of complex expressions like &A[i+1].  This has the
following benefits:

1. The phi translation logic is all contained in its own class with
   a strong interface and verification that it is self consistent.

2. The logic is more correct than before.  Previously, if intermediate
   expressions got PHI translated, we'd miss the update and scan for
   the wrong pointers in predecessor blocks.  @phi_trans2 is a testcase
   for this.

3. We have a lot less code in memdep.

We can handle phi translation across blocks of things like @phi_trans3,
which is pretty insane :).

This patch should fix the miscompiles of 255.vortex, and I tested it 
with a bootstrap of llvm-gcc, llvm-test and dejagnu of course.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90926 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:59:31 +00:00
Evan Cheng
7bd6478cd6 Teach InferPtrAlignment to infer GV+cst alignment and use it to simplify x86 isl lowering code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90925 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:53:58 +00:00
Devang Patel
a963306eed Remove tests that are not suitable anymore. Plus they are not testing the original bugfixes anymore. These tests were inserted to check bug fixes in code that handled debug info intrinsics. These intrinsics are no longer used and now llvm parser simply ignores old .dbg intrinsics from these dead tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90923 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 01:46:00 +00:00
Devang Patel
0000fadb00 Revert 90858 90875 and 90805 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90898 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:21:45 +00:00
Evan Cheng
d831cda3e7 - Support inline asm 'w' constraint for 128-bit vector types. 
- Also support the 'q' NEON registers asm code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90894 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 23:06:22 +00:00
Daniel Dunbar
aefd63d415 CMake/lit: Add llvm_{unit_,}site_config parameters, and always pass them when running tests from the project files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 19:47:36 +00:00
Devang Patel
018b66038c Do not try to push dead variable's debug info into namespace info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90857 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 15:01:35 +00:00
Duncan Sands
7a154cf228 Teach GlobalOpt to delete aliases with internal linkage (after 
forwarding any uses).  GlobalDCE can also do this, but is only
run at -O3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90850 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 10:10:20 +00:00
Anton Korobeynikov
9aa1ec87b0 Reduce (cmp 0, and_su (foo, bar)) into (bit foo, bar). This saves extra instruction. Patch inspired by Brian Lucas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90819 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 01:03:04 +00:00
Evan Cheng
fe81f96b86 Test case for 90787. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:42:22 +00:00
David Greene
e1a2fd5ad4 Use FileCheck and set nounwind on calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90790 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:40:26 +00:00
Dan Gohman
d84ea47b89 Don't enable the post-RA scheduler on x86 except at -O3. In its 
current form, it is too expensive in compile time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90781 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 19:04:31 +00:00
Mikhail Glushenkov
8245a1dd53 Implement 'forward_value' and 'forward_transformed_value'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90770 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-07 17:03:05 +00:00