RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2024-12-25 13:35:10 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
54,990 Commits 39 Branches 10 Tags 850 MiB
3472ae1e7b
Commit Graph

6041 Commits

Author SHA1 Message Date
Eric Christopher
3472ae1e7b Make sure the immediate dominator isn't NULL through iterations 
of the loop. We could get to this condition via indirect
branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:25:41 +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
Chris Lattner
b6760b4a1e allow this to build when the #if 0's are enabled. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-10 00:04:46 +00:00
Dan Gohman
f68d0c1bbe Dereference loopHeader after checking for null rather than before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 22:55:01 +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
b2c6ae8c0b change GetStoreValueForLoad to use IRBuilder, which is cleaner and 
implicitly constant folds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90977 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:13:28 +00:00
Bob Wilson
efc58e7933 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 18:05:27 +00:00
Chris Lattner
4ca70fe15f change AnalyzeLoadFromClobberingMemInst/AnalyzeLoadFromClobberingStore 
to require the load ty/ptr to be passed in, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90960 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:37:07 +00:00
Chris Lattner
03f17da4da change AnalyzeLoadFromClobberingWrite and clients to pass in type 
and pointer instead of the load.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90959 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:34:10 +00:00
Chris Lattner
e18b97121c change NonLocalDepEntry from being a typedef for an std::pair to be its 
own small class.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 07:08:01 +00:00
Chris Lattner
b3f927f6dd add some aborts to #if 0's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-09 02:41:54 +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
Bob Wilson
65ab34f3f2 Some superficial cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 18:27:03 +00:00
Bob Wilson
78c50b8cd6 Clean up dead operands left around after SROA replaces a mem intrinsic. 
I'm not aware that this does anything significant on its own, but it's
needed for another patch that I'm working on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 18:22:03 +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
Nick Lewycky
87f8e49027 Remove unnecessary #include "llvm/LLVMContext.h". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90836 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-08 05:45:41 +00:00
Chris Lattner
08bc2701a2 fix PR5698 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90708 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 17:17:23 +00:00
Chris Lattner
bc9a28dd54 constant fold loads from memcpy's from global constants. This is important 
because clang lowers nontrivial automatic struct/array inits to memcpy from
a global array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90698 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 05:29:56 +00:00
Chris Lattner
cb9cbc4949 add support for forwarding mem intrinsic values to non-local loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 04:54:31 +00:00
Chris Lattner
faf815b938 Handle forwarding local memsets to loads. For example, we optimize this: 
short x(short *A) {
  memset(A, 1, sizeof(*A)*100);
  return A[42];
}

to 'return 257' instead of doing the load.  



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90695 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-06 01:57:02 +00:00
Nick Lewycky
83e8ec73e1 Generalize this optimization to work on equality comparisons between any two 
integers that are constant except for a single bit (the same n-th bit in each).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90646 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-05 05:00:00 +00:00
Bob Wilson
39fdd6947c Fix up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90603 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:57:37 +00:00
Bob Wilson
d614a1f0a8 Fix 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90601 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 21:51:35 +00:00
Chris Lattner
45305d4ff6 add an assert to make it really clear what this is doing. Return singularval as 
a compile time perf optimization to avoid a load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90507 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-04 01:03:32 +00:00
Bob Wilson
4a8ee23a81 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90487 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 21:47:07 +00:00
Owen Anderson
c9f2027adb Fix this crasher, and add a FIXME for a missed optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90408 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 03:43:29 +00:00
Chris Lattner
7896c9f436 improve portability to avoid conflicting with std::next in c++'0x. 
Patch by Howard Hinnant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-03 00:50:42 +00:00
Jim Grosbach
43a8241b65 Move EliminateDuplicatePHINodes() from SimplifyCFG.cpp to Local.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 17:06:45 +00:00
Andreas Neustifter
059a983531 Cheap, mostly strict, stable sorting. 
This is necessary for tests so the results are comparable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90320 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 15:57:15 +00:00
Owen Anderson
9ff5a23186 Cleanup/remove some parts of the lifetime region handling code in memdep and GVN, 
per Chris' comments.  Adjust testcases to match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90304 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 07:35:19 +00:00
Chris Lattner
720e790480 factor some code better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:44:58 +00:00
Chris Lattner
65a9ab4f8f formatting cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90298 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:35:55 +00:00
Chris Lattner
bf796323b2 tidy up, remove dependence on order of evaluation of function args from EmitMemCpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-02 06:05:42 +00:00
Chris Lattner
46875c0bfb fix PR5640 by tracking whether a block is the header of a loop more 
precisely, which prevents us from infinitely peeling the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-01 06:04:43 +00:00
Benjamin Kramer
e6f329476c Revert r90089 for now, it's breaking selfhost. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90097 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 21:17:48 +00:00
Benjamin Kramer
4aac07e898 Fix two FIXMEs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90089 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 20:29:30 +00:00
Chris Lattner
cd188e9665 add testcases for the foo_with_overflow op xforms added recently and 
fix bugs exposed by the tests.  Testcases from Alastair Lynn!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 02:57:29 +00:00
Chris Lattner
3f40e23392 Implement PR5634. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90046 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-29 00:51:17 +00:00
Chris Lattner
0c264b16b0 reenable load address insertion in load pre. This allows us to 
handle cases like this:
void test(int N, double* G) {
  long j;
  for (j = 1; j < N - 1; j++)
      G[j+1] = G[j] + G[j+1];
}

where G[1] isn't live into the loop.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90041 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-28 16:08:18 +00:00
Chris Lattner
dd696052f0 Enhance InsertPHITranslatedPointer to be able to return a list of newly 
inserted instructions.  No functionality change until someone starts using it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90039 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-28 15:39:14 +00:00
Chris Lattner
971fd57f7d disable value insertion for now, I need to figure out how 
to inform GVN about the newly inserted values.  This fixes 
PR5631.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 22:50:07 +00:00
Chris Lattner
6f7b210b25 Rework InsertPHITranslatedPointer to handle the recursive case, this 
fixes PR5630 and sets the stage for the next phase of goodness (testcase
pending).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 22:05:15 +00:00
Chris Lattner
8aee8efc0c factor some logic out of instcombine into a new SimplifyAddInst method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 17:42:22 +00:00
Chris Lattner
8976e5950f fix PR5436 by making the 'simple' case of SRoA not promote out of range 
array indexes.  The "complex" case of SRoA still handles them, and correctly.

This fixes a weirdness where we'd correctly avoid transforming A[0][42] if
the 42 was too large, but we'd only do it if it was one gep, not two separate
ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90007 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 16:37:41 +00:00
Chris Lattner
616613d7a4 teach GVN's load PRE to insert computations of the address in predecessors 
where it is not available.  It's unclear how to get this inserted 
computation into GVN's scalar availability sets, Owen, help? :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89997 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 08:25:10 +00:00
Chris Lattner
62deff066c Fix phi translation in load PRE to agree with the phi 
translation done by memdep, and reenable gep translation 
again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89992 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 06:31:14 +00:00
Chris Lattner
c514c1f521 factor some instcombine simplifications for getelementptr out to a new 
SimplifyGEPInst method in InstructionSimplify.h.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-27 00:29:05 +00:00
Chris Lattner
998e25a143 fix crash on Transforms/InstCombine/intrinsics.ll introduced by r89970 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 22:08:06 +00:00
Chris Lattner
21f83a2f95 Fix PR5471 by removing an instcombine xform. Some pieces of the code 
generates store to undef and some generates store to null as the idiom
for undefined behavior.  Since simplifycfg zaps both, don't remove the
undefined behavior in instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 22:04:42 +00:00
Chris Lattner
2bbac75e5a implement a bunch of xforms for overflow intrinsics, based on a patch 
by Alastair Lynn.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-26 21:42:47 +00:00