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Author SHA1 Message Date
Jim Grosbach
534d2cb249 Expand 64 bit left shift inline rather than using the libcall. For now, this 
is unconditional. Making it still use the libcall when optimizing for size
would be a good adjustment.

llvm-svn: 85675
 2009-10-31 19:38:01 +00:00
Benjamin Kramer
60dac7de40 Add missing colons for FileCheck. 
llvm-svn: 85674
 2009-10-31 19:22:24 +00:00
Jim Grosbach
78a5bcfa02 Convert to FileCheck 
llvm-svn: 85673
 2009-10-31 19:06:53 +00:00
Jim Grosbach
b95117d568 The universal SDKROOT should only be assigned when hosted. Otherwise the 
SDKROOT can refer to the target when we're building for the host.

llvm-svn: 85672
 2009-10-31 18:00:10 +00:00
Chris Lattner
0be6fcef18 add a comment. 
llvm-svn: 85671
 2009-10-31 17:48:31 +00:00
Dan Gohman
61e806613f Revert r85667. LoopUnroll currently can't call utility functions which 
auto-update the DominatorTree because it doesn't keep the DominatorTree
current while it works.

llvm-svn: 85670
 2009-10-31 17:33:01 +00:00
Dan Gohman
cb32fa9e90 Remove redundant code. 
llvm-svn: 85668
 2009-10-31 16:16:41 +00:00
Dan Gohman
40cec16be1 Merge the enhancements from LoopUnroll's FoldBlockIntoPredecessor into 
MergeBlockIntoPredecessor. This makes SimplifyCFG slightly more aggressive,
and makes it unnecessary for LoopUnroll to have its own copy of this code.

llvm-svn: 85667
 2009-10-31 16:08:00 +00:00
Dan Gohman
0079f87732 Rename forgetLoopBackedgeTakenCount to forgetLoop, because it 
clears out more information than just the stored backedge taken count.

llvm-svn: 85664
 2009-10-31 15:04:55 +00:00
Dan Gohman
de593b49b6 Replace LoopUnrollPass.cpp's custom code-size estimation code using 
the new common CodeMetrics code.

llvm-svn: 85663
 2009-10-31 14:54:17 +00:00
Dan Gohman
14d0be4693 Simplify this code. 
llvm-svn: 85662
 2009-10-31 14:46:50 +00:00
Dan Gohman
0f8d034e2f Remove an unnecessary #include. 
llvm-svn: 85661
 2009-10-31 14:39:43 +00:00
Dan Gohman
793119ef88 Update CMakeLists for recent renames. 
llvm-svn: 85660
 2009-10-31 14:38:25 +00:00
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