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20728 Commits

Author SHA1 Message Date
Nick Lewycky
bb69ad8a1b Small cleanup. Use APInt::getHighBitsSet method instead of shift left. 
"setcc" -> "icmp op" in comments. No functionality change.

llvm-svn: 44249
 2007-11-20 08:44:50 +00:00
Nick Lewycky
f1d30ded71 Be more careful when transforming | to +. Patch from Wojciech Matyjewicz. 
llvm-svn: 44248
 2007-11-20 08:24:44 +00:00
Chris Lattner
21c243d051 ExpandUnalignedLoad doesn't handle vectors right at all apparently. 
Fix a couple of problems:
1. Don't assume the VT-1 is a VT that is half the size.
2. Treat vectors of FP in the vector path, not the FP path.

This has a couple of remaining problems before it will work with
the code in PR1811: the code below this change assumes that it can
use extload/shift/or to construct the result, which isn't right for
vectors.

This also doesn't handle vectors of 1 or vectors that aren't pow-2.

llvm-svn: 44243
 2007-11-19 21:38:03 +00:00
Chris Lattner
c0f2f19744 Implement vector expand support for shuffle_vector. This fixes PR1811. 
llvm-svn: 44242
 2007-11-19 21:16:54 +00:00
Dan Gohman
27ac53cc23 Remove meaningless qualifiers from return types, avoiding compiler warnings. 
llvm-svn: 44240
 2007-11-19 20:46:23 +00:00
Chris Lattner
30a6eee34c Implement splitting of UNDEF nodes. This is the first step towards fixing PR1811 
llvm-svn: 44239
 2007-11-19 20:21:32 +00:00
Dan Gohman
760d574313 Add explicit keywords. 
llvm-svn: 44234
 2007-11-19 15:30:20 +00:00
Dan Gohman
0f62120b01 Add support in SplitVectorOp for remainder operators. 
llvm-svn: 44233
 2007-11-19 15:15:03 +00:00
Chris Lattner
56d872fcbb Fix the Linker testcase regressions, by making MemoryBuffer::getFileOrSTDIN return 
a valid but empty buffer if stdin is empty.

llvm-svn: 44219
 2007-11-18 18:52:28 +00:00
Chris Lattner
7f2b9b27b3 autoupgrade files that use callfoo as call foo. 
llvm-svn: 44218
 2007-11-18 18:43:24 +00:00
Chris Lattner
cf741eccd6 print a call to a fastcc function as: 
call x86_fastcallcc void @func( i32* %X, i64 0 )
not:
	callx86_fastcallcc  void @func( i32* %X, i64 0 )

This fixes Codegen/X86/fast-cc-merge-stack-adj.ll

llvm-svn: 44217
 2007-11-18 18:32:16 +00:00
Chris Lattner
88f47f2798 Bugfix, this fixes CodeGen/X86/ldzero.ll and CodeGen/X86/2007-10-16-fp80_select.ll 
llvm-svn: 44215
 2007-11-18 18:25:18 +00:00
Chris Lattner
54284cf34a Replace the original flex lexer with a hand writen one. This 
drops a dependency on flex and lets us make future progress more 
easily.  Yay for 2 fewer .cvs files to make silly conflicts with.

llvm-svn: 44213
 2007-11-18 08:46:26 +00:00
Nate Begeman
2a8ef3f29a Add support for vectors to int <-> float casts. 
llvm-svn: 44204
 2007-11-17 03:58:34 +00:00
Dale Johannesen
c5032e5366 Remove indeterminism from a loop. We think this will 
fix an occasional nonrepeatable bootstrap failure we've
been seeing on Darwin.

llvm-svn: 44202
 2007-11-17 02:48:01 +00:00
Dale Johannesen
ea47b8b77d Fix denormal check in float->APInt conversion. 
PR 1804.

llvm-svn: 44201
 2007-11-17 01:02:27 +00:00
Evan Cheng
5c96771102 Live interval splitting: 
When a live interval is being spilled, rather than creating short, non-spillable
intervals for every def / use, split the interval at BB boundaries. That is, for
every BB where the live interval is defined or used, create a new interval that
covers all the defs and uses in the BB.

This is designed to eliminate one common problem: multiple reloads of the same
value in a single basic block. Note, it does *not* decrease the number of spills
since no copies are inserted so the split intervals are *connected* through
spill and reloads (or rematerialization). The newly created intervals can be
spilled again, in that case, since it does not span multiple basic blocks, it's
spilled in the usual manner. However, it can reuse the same stack slot as the
previously split interval.

This is currently controlled by -split-intervals-at-bb.

llvm-svn: 44198
 2007-11-17 00:40:40 +00:00
Tanya Lattner
a3d1741c70 Fix for PR1801 
llvm-svn: 44193
 2007-11-16 22:44:50 +00:00
Chris Lattner
5574ba5ce6 Fix PR1800 by correcting mistaken logic. 
llvm-svn: 44188
 2007-11-16 06:04:17 +00:00
Anton Korobeynikov
cd9b16df61 Implement codegen for flt_rounds on x86 
llvm-svn: 44183
 2007-11-16 01:31:51 +00:00
Anton Korobeynikov
b6c3255d80 Implement necessary bits for flt_rounds gcc builtin. 
Codegen bits and llvm-gcc support will follow.

llvm-svn: 44182
 2007-11-15 23:25:33 +00:00
Nate Begeman
a42e2c2272 Basic non-power-of-2 vector support 
llvm-svn: 44181
 2007-11-15 21:15:26 +00:00
Anton Korobeynikov
c9ab2516fa Reverted r44163 per request 
llvm-svn: 44177
 2007-11-15 18:33:16 +00:00
Duncan Sands
895e6284a9 This assertion was bogus. 
llvm-svn: 44167
 2007-11-15 09:54:37 +00:00
Evan Cheng
c19506f69d Fix a thinko in post-allocation coalescer. 
llvm-svn: 44166
 2007-11-15 08:13:29 +00:00
Nick Lewycky
6690b9499b Fix handling of overflow in loop calculation by adding new UDiv SCEV. This SCEV 
is disabled in the sense that it will refuse to create one from a UDiv
instruction, until the code is better tested.

llvm-svn: 44163
 2007-11-15 06:30:50 +00:00
Chris Lattner
64ca1fd02a Fix PR1788 by taking the approach suggested by Richard Smith. 
Thanks to him for his detailed analysis of the problem.

llvm-svn: 44162
 2007-11-15 06:10:55 +00:00
Owen Anderson
b88ac41e0e More templatization. 
llvm-svn: 44158
 2007-11-15 05:00:15 +00:00
Bill Wendling
f16da54ae2 Adding debug output during coalescing. 
llvm-svn: 44154
 2007-11-15 02:06:30 +00:00
Bill Wendling
3a908f7dca Need to increment the iterator. 
llvm-svn: 44153
 2007-11-15 00:40:48 +00:00
Duncan Sands
5924300986 I discover array_lengthof, thanks to gabor on #llvm. 
llvm-svn: 44139
 2007-11-14 21:58:02 +00:00
Evan Cheng
c0dc7b6e61 Oops. Debugging code shouldn't have been checked in. 
llvm-svn: 44128
 2007-11-14 19:08:32 +00:00
Ted Kremenek
0daf840e56 Removed debug #define that was accidentally checked in while debugging 
the deserializer.

Fixed assertion when "stream jumping" in the deserializer to properly function
when we have reached the end of the stream.

llvm-svn: 44124
 2007-11-14 17:42:09 +00:00
Duncan Sands
805a8ba9cf Simplify the attribute verification code. 
llvm-svn: 44116
 2007-11-14 14:02:11 +00:00
Anton Korobeynikov
b1e6079350 Regenerate 
llvm-svn: 44110
 2007-11-14 09:53:48 +00:00
Anton Korobeynikov
00f3ace7e9 Add pure/const attributes. Documentation will follow. 
llvm-svn: 44109
 2007-11-14 09:52:30 +00:00
Anton Korobeynikov
58298cb9cc Fix PIC jump table codegen on x86-32/linux. In fact, such thing should be applied 
to all targets uses GOT-relative offsets for PIC (Alpha?)

llvm-svn: 44108
 2007-11-14 09:18:41 +00:00
Duncan Sands
e6821dd990 Eliminate the recently introduced CCAssignToStackABISizeAlign 
in favour of teaching CCAssignToStack that size 0 and/or align
0 means to use the ABI values.  This seems a neater solution.
It is safe since no legal value type has size 0.

llvm-svn: 44107
 2007-11-14 08:29:13 +00:00
Ted Kremenek
0f3c05d800 Added two new overloaded versions of BatchEmitOwnedPtrs and 
BatchReadOwnedPtrs.

llvm-svn: 44105
 2007-11-14 08:05:03 +00:00
Evan Cheng
fd33cb316f Clean up sub-register implementation by moving subReg information back to 
MachineOperand auxInfo. Previous clunky implementation uses an external map
to track sub-register uses. That works because register allocator uses
a new virtual register for each spilled use. With interval splitting (coming
soon), we may have multiple uses of the same register some of which are
of using different sub-registers from others. It's too fragile to constantly
update the information.

llvm-svn: 44104
 2007-11-14 07:59:08 +00:00
Nick Lewycky
a0c9b79552 Allow the block extractor take to take a list of basic blocks to not extract 
from a file containing Function/BasicBlock pairings. This is not safe against
anonymous or abnormally-named Funcs or BBs.

Make bugpoint use this interface to pass the BBs list to the child bugpoint.

llvm-svn: 44101
 2007-11-14 06:47:06 +00:00
Chris Lattner
3b66875602 Implement PR1796 and Transforms/SimplifyCFG/noreturn-call.ll 
by inserting unreachable after no-return calls.

llvm-svn: 44099
 2007-11-14 06:19:25 +00:00
Owen Anderson
7b92dab615 Start the process of making MachineLoopInfo possible by templating Loop. 
llvm-svn: 44097
 2007-11-14 02:33:58 +00:00
Chris Lattner
cb7db77dd1 Fix the regression on Transforms/GlobalOpt/deadglobal-2.ll from my 
patch on friday.

llvm-svn: 44068
 2007-11-13 21:46:23 +00:00
Owen Anderson
b3d15a65fc Run computeDomForest() on the set of registers that need to be tested for 
interference.

llvm-svn: 44064
 2007-11-13 20:13:24 +00:00
Owen Anderson
9f15b689b3 Preserve LiveVariables when doing critical edge splitting. 
llvm-svn: 44063
 2007-11-13 20:04:45 +00:00
Dale Johannesen
70ca3c1f03 Revert previous; these files aren't ready to go in yet. 
llvm-svn: 44057
 2007-11-13 19:16:02 +00:00
Dale Johannesen
5fd9e7a615 Add parameter to getDwarfRegNum to permit targets 
to use different mappings for EH and debug info;
no functional change yet.
Fix warning in X86CodeEmitter.

llvm-svn: 44056
 2007-11-13 19:13:01 +00:00
Evan Cheng
994043f515 Fix x86-64 jit: remove reliance on Dwarf numbers. 
llvm-svn: 44048
 2007-11-13 17:54:34 +00:00
Bill Wendling
934fcd87e7 Unifacalize the CALLSEQ{START,END} stuff. 
llvm-svn: 44045
 2007-11-13 09:19:02 +00:00