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Author SHA1 Message Date
Dan Gohman
0186fd092a Rename UnrollLoop.cpp to LoopUnroll.cpp, and LoopUnroll.cpp to 
LoopUnrollPass.cpp, for consistency with other passes which are
similarly split.

llvm-svn: 85659
 2009-10-31 14:37:31 +00:00
Dan Gohman
04c536dff6 Remove CodeGenLICM. It's largely obsoleted by MachineLICM's new ability 
to unfold loop-invariant loads.

llvm-svn: 85657
 2009-10-31 14:35:41 +00:00
Dan Gohman
7d09ca3e5b Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an 
underlying alias call even for non-identified-object values.

llvm-svn: 85656
 2009-10-31 14:32:25 +00:00
Dan Gohman
25091aa227 Reapply r85634, with the bug fixed. 
llvm-svn: 85655
 2009-10-31 14:22:52 +00:00
Dan Gohman
02e34cd465 When discarding SrcValue information, discard all of it so that code 
that uses this information knows to behave conservatively.

llvm-svn: 85654
 2009-10-31 14:14:04 +00:00
Dan Gohman
9c7c19f264 Fix 80-column violation. 
llvm-svn: 85653
 2009-10-31 14:12:53 +00:00
Eric Christopher
dec076697a Fix warning with gcc-4.0 and signed/unsigned. 
llvm-svn: 85648
 2009-10-31 09:24:35 +00:00
Evan Cheng
9178904e56 It's safe to remat t2LDRpci; Add PseudoSourceValue to load / store's to enable more machine licm. More changes coming. 
llvm-svn: 85643
 2009-10-31 03:39:36 +00:00
Evan Cheng
a0457853b2 Revert 85634. It's breaking consumer-typeset (and others). 
llvm-svn: 85641
 2009-10-31 01:28:06 +00:00
Dan Gohman
d5dbd3f588 Add a target triple so that this test behaves consistently across hosts. 
llvm-svn: 85640
 2009-10-31 00:15:28 +00:00
Dan Gohman
c917bbdeae Add assertion checks here to turn silent miscompiles into aborts. 
llvm-svn: 85639
 2009-10-30 23:59:06 +00:00
Dan Gohman
3d1f3f707f Don't mark registers dead here when processing nodes with MVT::Flag 
results. This works around a problem affecting targets which rely on
MVT::Flag to handle physical register defs.

llvm-svn: 85638
 2009-10-30 23:57:47 +00:00
Dan Gohman
14157e31a3 Fix the -mattr line for this test so that it passes on hosts that lack SSSE3. 
llvm-svn: 85637
 2009-10-30 23:18:27 +00:00
Dan Gohman
cd411a597d Add a testcase for the recent duplicate PHI elimination changes. 
llvm-svn: 85636
 2009-10-30 23:16:10 +00:00
Dan Gohman
c8a5a5ece2 Add a comment about a missed opportunity. 
llvm-svn: 85635
 2009-10-30 23:15:43 +00:00
Dan Gohman
a532f755f7 Optimize around the fact that pred_iterator is slow: instead of sorting 
PHI operands by the predecessor order, sort them by the order used by the
first PHI in the block. This is still suffucient to expose duplicates.

llvm-svn: 85634
 2009-10-30 23:15:21 +00:00
Kevin Enderby
c8d047130a Updates to the ARM target assembler for llvm-mc per review comments from 
Daniel Dunbar.
- Reordered the fields in the ARMOperand Mem struct to make the struct smaller.
Making bool's into 1 bit fields and put the MCExpr* fields adjacent to each
other.
- Fixed a number of places in ARMAsmParser.cpp so they have doxygen comments.
- Change the name of ARMAsmParser::ParseRegister() to MaybeParseRegister and
added the bool ParseWriteBack parameter.
- Changed ARMAsmParser::ParseMemory() to call MaybeParseRegister().
- Added ARMAsmParser::ParseMemoryOffsetReg to factor out parsing the offset of a
memory operand.  And use it for both parsing both preindexed and post indexing
addressing forms in ARMAsmParser::ParseMemory.
- Changed the first argument to ParseShift() to a reference.
- Changed ParseShift() to check for Rrx first and return to reduce nesting.

llvm-svn: 85632
 2009-10-30 22:55:57 +00:00
Devang Patel
b16ace1014 If string field is empty then return NULL. 
llvm-svn: 85630
 2009-10-30 22:52:47 +00:00
Chris Lattner
3982885b51 if basic blocks are destroyed while there are *just* BlockAddress' hanging 
around, then zap them.  This is analogous to dangling constantexprs hanging
off functions.

llvm-svn: 85627
 2009-10-30 22:39:36 +00:00
Dan Gohman
48f3169c77 Teach SimplifyCFG how to eliminate duplicate PHI nodes within a block. 
This reduces codesize on a variety of codes by 1-2% on x86-64. It also
helps clean up after SSAUpdater.

llvm-svn: 85626
 2009-10-30 22:39:04 +00:00
Chris Lattner
74ed905748 make hasAddressTaken() constant time by storing a refcount in BB's subclass data. 
llvm-svn: 85625
 2009-10-30 22:33:29 +00:00
Bob Wilson
1c2cbe3945 Add a note about Robert Muth's alternate jump table implementation. 
llvm-svn: 85624
 2009-10-30 22:22:46 +00:00
Dan Gohman
82139ffc65 Sort the incoming values in PHI nodes to match the predecessor order. 
This helps expose duplicate PHIs, which will make it easier for them
to be eliminated.

llvm-svn: 85623
 2009-10-30 22:22:22 +00:00
Dan Gohman
ad6c6a3d33 Fix MachineLICM to use the correct virtual register class when 
unfolding loads for hoisting.  getOpcodeAfterMemoryUnfold returns the
opcode of the original operation without the load, not the load
itself, MachineLICM needs to know the operand index in order to get
the correct register class. Extend getOpcodeAfterMemoryUnfold to
return this information.

llvm-svn: 85622
 2009-10-30 22:18:41 +00:00
Chris Lattner
5b38f2ec49 it isn't valid to take the address of the entry block. 
llvm-svn: 85621
 2009-10-30 22:15:48 +00:00
Devang Patel
2b9d1ade65 If a type is derived from a derived type then calculate size appropriately. 
llvm-svn: 85619
 2009-10-30 22:09:30 +00:00
Jim Grosbach
88539d92a3 Build in ARM mode explicitly when on ARM Darwin 
llvm-svn: 85615
 2009-10-30 21:33:05 +00:00
Daniel Dunbar
45b7d65288 Add missing substitution for %llvmgcc_only. 
llvm-svn: 85614
 2009-10-30 21:13:59 +00:00
Jim Grosbach
16b4042036 Allow cross target build 
llvm-svn: 85611
 2009-10-30 20:54:59 +00:00
Bob Wilson
94d79c1f43 Fix a comment. 
llvm-svn: 85610
 2009-10-30 20:13:25 +00:00
Evan Cheng
8db8f72185 Add option to createGVNPass to disable PRE. 
llvm-svn: 85609
 2009-10-30 20:12:24 +00:00
Evan Cheng
52d6e56ac9 I forgot to commit this test. 
llvm-svn: 85608
 2009-10-30 20:03:40 +00:00
Jim Grosbach
e0e5896a29 When cross-building, the CFLAGS and CXXFLAGS are for the target, and don't 
apply to the build tools. If we want to allow build tool flags input, we
should have separate inputs (BUILD_CFLAGS and BUILD_CXXFLAGS, perhaps).

llvm-svn: 85607
 2009-10-30 19:53:38 +00:00
Jim Grosbach
7f05d433e0 Remove extraneous comment line 
llvm-svn: 85606
 2009-10-30 19:52:05 +00:00
Jim Grosbach
85fb2965a5 update name check for Apple style builds to be more permissive 
llvm-svn: 85605
 2009-10-30 19:51:32 +00:00
Lang Hames
68c94340cb Stop the iterator in ValueLiveAt from potentially running off the end of the interval. 
llvm-svn: 85599
 2009-10-30 18:12:09 +00:00
Rafael Espindola
d4fadd76da This fixes functions like 
void f (int a1, int a2, int a3, int a4, int a5,...)

In ARMTargetLowering::LowerFormalArguments if the function has 4 or
more regular arguments we used to set VarArgsFrameIndex using an
offset of 0, which is only correct if the function has exactly 4
regular arguments.

llvm-svn: 85590
 2009-10-30 14:33:14 +00:00
Oscar Fuentes
8072b6dafe CMake: install .def files from source `include/llvm' directory. 
llvm-svn: 85587
 2009-10-30 11:42:08 +00:00
Evan Cheng
eb9c268ba0 Rather than having llvm-gcc changing the meaning of OptimizeSize, just make sure loop unswitch is conservative when optimization level is < 3. 
llvm-svn: 85581
 2009-10-30 07:23:49 +00:00
Bob Wilson
95064e348a Add ARM codegen for indirect branches. 
clang/test/CodeGen/indirect-goto.c runs! (unoptimized)

llvm-svn: 85577
 2009-10-30 05:45:42 +00:00
Dan Gohman
84554e8eb2 Most stack straces don't need 3 digits worth of levels. 
llvm-svn: 85575
 2009-10-30 02:45:10 +00:00
Dan Gohman
2f18203b64 Don't delete blocks which have their address taken. 
llvm-svn: 85572
 2009-10-30 02:13:27 +00:00
Dan Gohman
2a0216ff1c Mention if a block has its address taken in debug output. 
llvm-svn: 85571
 2009-10-30 02:08:26 +00:00
Dan Gohman
42e985b07a Simplify this code and avoid an extra space character in the output. 
llvm-svn: 85568
 2009-10-30 02:01:10 +00:00
Dan Gohman
468aef9289 Add support for BlockAddress static initializers. 
llvm-svn: 85562
 2009-10-30 01:45:18 +00:00
Dan Gohman
aa62f675db Add a FIXME comment. 
llvm-svn: 85559
 2009-10-30 01:38:20 +00:00
Dan Gohman
a0fc491716 Add some comments. 
llvm-svn: 85558
 2009-10-30 01:34:35 +00:00
Dan Gohman
2767aa065e Initial x86 support for BlockAddresses. 
llvm-svn: 85557
 2009-10-30 01:28:02 +00:00
Dan Gohman
6b7d1390d7 Initial target-independent CodeGen support for BlockAddresses. 
llvm-svn: 85556
 2009-10-30 01:27:03 +00:00
Devang Patel
134ea45684 Remove dead code. 
llvm-svn: 85551
 2009-10-30 00:39:25 +00:00