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Commit Graph

2583 Commits

Author SHA1 Message Date
Chris Lattner
5b8e288c5f fix the other issue with ID's, hopefully really fixing the linux build.
llvm-svn: 84403
2009-10-18 04:58:34 +00:00
Chris Lattner
a1aaf47423 fix some problems with ID definitions, which will hopefully fix the build bots.
llvm-svn: 84399
2009-10-18 04:27:14 +00:00
Chris Lattner
8851d6cf9c add function passes for printing various dominator datastructures
accessible through opt.  Patch by Tobias Grosser!

llvm-svn: 84397
2009-10-18 04:10:40 +00:00
Chris Lattner
f202995415 make DOTGraphTraits public, patch by Tobias Grosser!
llvm-svn: 84396
2009-10-18 04:09:11 +00:00
Chris Lattner
a72ccc6fee inline isGEP away.
llvm-svn: 84373
2009-10-17 23:48:54 +00:00
Victor Hernandez
a25a2890fa Remove MallocInst from LLVM Instructions.
llvm-svn: 84299
2009-10-17 01:18:07 +00:00
Victor Hernandez
6d11519b1f Invert isSafeToGetMallocArraySize check because we return NULL when we don't know the size.
Thanks to Duncan Sands for noticing this bug.

llvm-svn: 84261
2009-10-16 18:08:17 +00:00
Evan Cheng
54b34ff68d When checking aliases between phi sources and V2, we know the sources are not themselves phi nodes. However, V2 may be. Call aliasCheck with V2 first to potentially eliminate a std::swap call.
llvm-svn: 84226
2009-10-16 00:33:09 +00:00
Victor Hernandez
603a11de4e Fix bug where array malloc with unexpected computation of the size argument resulted in MallocHelper
identifying the malloc as a non-array malloc.  This broke GlobalOpt's optimization of stores of mallocs 
to global variables.

The fix is to classify malloc's into 3 categories:
1. non-array mallocs
2. array mallocs whose array size can be determined
3. mallocs that cannot be determined to be of type 1 or 2 and cannot be optimized

getMallocArraySize() returns NULL for category 3, and all users of this function must avoid their 
malloc optimization if this function returns NULL.

Eventually, currently unexpected codegen for computing the malloc's size argument will be supported in
isArrayMalloc() and getMallocArraySize(), extending malloc optimizations to those examples.

llvm-svn: 84199
2009-10-15 20:14:52 +00:00
Nick Lewycky
7ec7f1ce0f Add missing break statements! Thanks to Duncan Sands for pointing this out!
llvm-svn: 84191
2009-10-15 18:48:58 +00:00
Nick Lewycky
4ba7b77812 Teach basicaa about memcpy/memmove/memset. The length argument can be used to
improve alias results if constant, and the source pointer can't be modified.

llvm-svn: 84175
2009-10-15 07:11:24 +00:00
Nick Lewycky
14a06f7051 Teach BasicAA to use the size parameter of the memory use marker intrinsics.
llvm-svn: 84174
2009-10-15 06:12:11 +00:00
Nick Lewycky
a12f6e8f78 Take advantage of TargetData when available; we know that the atomic intrinsics
only dereference the element they point to directly with no pointer arithmetic.

llvm-svn: 84159
2009-10-15 00:36:35 +00:00
Evan Cheng
37a7a18748 Clear VisitedPHIs after use.
llvm-svn: 84080
2009-10-14 06:46:26 +00:00
Evan Cheng
907fd9c3fb Another BasicAA fix. If a value does not alias a GEP's base pointer, then it
cannot alias the GEP. GEP pointer alias rule states this clearly:
A pointer value formed from a getelementptr instruction is associated with the
addresses associated with the first operand of the getelementptr.

llvm-svn: 84079
2009-10-14 06:41:49 +00:00
Evan Cheng
c1056d9269 More code clean up based on patch feedback.
llvm-svn: 84074
2009-10-14 05:22:03 +00:00
Evan Cheng
efc0f806a4 Change VisitedPHIs into an instance variable that's freed by each alias() call.
llvm-svn: 84072
2009-10-14 05:05:02 +00:00
Evan Cheng
3130aba687 Teach basic AA about PHI nodes. If all operands of a phi NoAlias another value than it's safe to declare the PHI NoAlias the value. Ditto for MustAlias.
llvm-svn: 84038
2009-10-13 22:02:20 +00:00
Dan Gohman
c1e210fa10 Compute a full cost value even when a setjmp call is found.
llvm-svn: 84015
2009-10-13 20:10:10 +00:00
Dan Gohman
665e336185 Split code not specific to Function inlining out into a separate class,
named CodeMetrics. Move it to be a non-nested class. Rename RegionInfo
back to FunctionInfo.

llvm-svn: 84013
2009-10-13 19:58:07 +00:00
Benjamin Kramer
679377c816 Update the other CMake file.
llvm-svn: 84003
2009-10-13 18:50:54 +00:00
Evan Cheng
84c5224fa2 Refactor some code. No functionality changes.
llvm-svn: 84000
2009-10-13 18:42:04 +00:00
Dan Gohman
18cdd7ef1b Move the InlineCost code from Transforms/Utils to Analysis.
llvm-svn: 83998
2009-10-13 18:30:07 +00:00
Devang Patel
ee9d2f0cc0 "there is not any instruction with attached debug info in this module" does not mean "there is no debug info in this module". :)
llvm-svn: 83984
2009-10-13 17:35:35 +00:00
Nick Lewycky
72f185f281 Teach BasicAA a little something about the atomic intrinsics: they can only
modify through the pointer they're given.

llvm-svn: 83959
2009-10-13 07:48:38 +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
Dan Gohman
731afb3b6e Revert r83606 and add comments explaining why it isn't safe.
llvm-svn: 83649
2009-10-09 16:35:06 +00:00
Dan Gohman
e81a040ce7 Preserve HasNSW and HasNUW when constructing SCEVs for Add and Mul
instructions.

llvm-svn: 83606
2009-10-09 00:41:22 +00:00
Dan Gohman
4cdd530887 Add the ability to track HasNSW and HasNUW on more kinds of SCEV expressions.
llvm-svn: 83601
2009-10-09 00:10:36 +00:00
Douglas Gregor
57f2c22857 Update CMake build yet again after a source file was removed
llvm-svn: 83575
2009-10-08 21:24:34 +00:00
Bill Wendling
d47d348cdf It's possible for a global variable to be optimized out of a metadata object. So
we should allow a "null" with this dyn_cast.

llvm-svn: 83573
2009-10-08 20:52:51 +00:00
Chris Lattner
41b5fd5218 remove LoopVR pass. According to Nick:
"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."

llvm-svn: 83531
2009-10-08 06:42:44 +00:00
Devang Patel
a7456a1335 Extract subprogram and compile unit information from the debug info attached to an instruction.
llvm-svn: 83491
2009-10-07 22:04:08 +00:00
Torok Edwin
6a66b4edd1 Add PR to this FIXME, looks like I didn't commit this change after all.
llvm-svn: 83457
2009-10-07 09:22:55 +00:00
Duncan Sands
2400ad7236 Introduce and use convenience methods for getting pointer types
where the element is of a basic builtin type.  For example, to get
an i8* use getInt8PtrTy.

llvm-svn: 83379
2009-10-06 15:40:36 +00:00
Evan Phoenix
1b803795c7 Extend ConstantFolding to understand signed overflow variants
llvm-svn: 83338
2009-10-05 22:53:52 +00:00
Torok Edwin
1a53fd9356 Don't treat malloc calls with non-matching prototype as malloc.
Fixes second part of PR5130, miscompilation in FreeBSD kernel, where malloc takes 3 params,
and *does* initialize memory.

llvm-svn: 83324
2009-10-05 21:15:43 +00:00
Dan Gohman
176e47a413 Remove an unnnecessary LLVMContext argument in
ConstantFoldLoadThroughGEPConstantExpr.

llvm-svn: 83311
2009-10-05 16:36:26 +00:00
Chris Lattner
7d19c8841c teach the optimizer how to constant fold uadd/usub intrinsics.
llvm-svn: 83295
2009-10-05 05:26:04 +00:00
Chris Lattner
8b72a24a35 simplify this code a bunch.
llvm-svn: 83294
2009-10-05 05:06:24 +00:00
Chris Lattner
24a77e2ade code simplifications.
llvm-svn: 83292
2009-10-05 05:00:35 +00:00
Mike Stump
532ed49e39 Expand api out in the usual inserter way, though, I do have a
question, can we get rid of the BasicBlock versions of all inserters
and use Head == 0 to indicate the old case when GetInsertBlock == 0?

llvm-svn: 83216
2009-10-01 22:08:58 +00:00
Devang Patel
4f1147e386 Add another MDNode into DebugLocTuple. This will be used to keep track of inlined functions.
llvm-svn: 83190
2009-10-01 01:15:28 +00:00
Devang Patel
cb516787d0 Add isFOO() helpers. Fix getDirectory() and getFilename() for DIScope.
llvm-svn: 83180
2009-09-30 22:34:41 +00:00
Mike Stump
a3bce35a07 Add a way for a frontend to generate more complex dwarf location
information.  This allows arbitrary code involving DW_OP_plus_uconst
and DW_OP_deref.  The scheme allows for easy extention to include,
any, or all of the DW_OP_ opcodes.  I thought about just exposing all
of them, but, wasn't sure if people wanted the dwarf opcodes exposed
in the api.  Is that a layering violation?

With this scheme, the entire existing block scheme used by llvm-gcc
can be switched over to the new scheme.  I think that would be
cleaner, as then the compiler specific bits are not present in llvm
proper.  Before the old code can be yanked however, similar code in
clang would have to be removed.

Next up, more testing.

llvm-svn: 83120
2009-09-30 00:08:22 +00:00
Devang Patel
e5be8e79df Remove std::string uses from DebugInfo interface.
llvm-svn: 83083
2009-09-29 18:40:58 +00:00
Dan Gohman
c3081dd9eb When extending the operands of an addrec, iterate through all
the operands, rather than trying to partition them into a start
and a step. This handles non-affine add recurrences correctly.

llvm-svn: 83011
2009-09-28 21:01:47 +00:00
Dan Gohman
bfa2d75c49 Create a README.txt for lib/Analysis, and add an entry.
llvm-svn: 83001
2009-09-28 18:38:53 +00:00
Dan Gohman
7a5cb984e6 Fix this debug output to handle the case where the loop has been deleted.
llvm-svn: 82994
2009-09-28 15:40:01 +00:00
Dan Gohman
aade5fefdb Include the name of the loop header in debug messages.
llvm-svn: 82993
2009-09-28 15:07:18 +00:00