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Author SHA1 Message Date
Evan Cheng
098905497f Missed alignment argument on stores lowered from memcpy. 
llvm-svn: 53281
 2008-07-09 06:38:06 +00:00
Evan Cheng
f51c436a1b Back out 53254. It broke ppc debug info codegen. 
llvm-svn: 53280
 2008-07-09 06:36:53 +00:00
Bill Wendling
3119083ee6 Make the DICountVisitor not a visitor. This keeps us from calling virtual 
functions and junk.

llvm-svn: 53279
 2008-07-09 06:02:33 +00:00
Bill Wendling
ba6c8e3a76 Silence warning by initializing variable. 
llvm-svn: 53278
 2008-07-09 05:55:53 +00:00
Bruno Cardoso Lopes
5ed6e9e045 Fixed features usage. 
llvm-svn: 53277
 2008-07-09 05:32:22 +00:00
Nick Lewycky
38fa84fa12 Fold ((1 << a) & 1) to (a == 0). 
llvm-svn: 53276
 2008-07-09 05:20:13 +00:00
Chris Lattner
b650adae49 Add a little wrapper header that is put around bc files when emitting 
bc files for modules with a target triple that indicates they are for
darwin.  The reader unconditionally handles this, and the writer could
turn this on for more targets if we care.

This change has two benefits for darwin:

1) it allows us to encode the cpu type of the file in an easy to read
   place that doesn't require decoding the bc file.
2) it works around a bug (IMO) in darwin's AR where it is incapable of
   handling files that are not a multiple of 8 bytes long.  BC files
   are only guaranteed to be multiples of 4 bytes long.

llvm-svn: 53275
 2008-07-09 05:14:23 +00:00
Chris Lattner
6bc83fb5de random bugfix sitting in my tree. 
llvm-svn: 53274
 2008-07-09 05:12:07 +00:00
Chris Lattner
1a2c55201e Fix a broken test. Neither load is eliminable without changing the CFG. 
llvm-svn: 53273
 2008-07-09 05:01:02 +00:00
Bruno Cardoso Lopes
2bad4772e7 Fixe typos and 80 column size problems 
llvm-svn: 53272
 2008-07-09 04:45:36 +00:00
Nick Lewycky
2a6469c9a5 Reduce x - y to -y when we know the 'x' part will get masked off anyways. 
llvm-svn: 53271
 2008-07-09 04:32:37 +00:00
Bruno Cardoso Lopes
aef7ff4c46 MipsTargetLowering cleanup 
llvm-svn: 53270
 2008-07-09 04:15:08 +00:00
Nick Lewycky
86adf455bd Remove getValueRange from SCEV. It wasn't doing anything there anyways, and a 
more complete version is now available from the LoopVR pass.

llvm-svn: 53269
 2008-07-09 03:21:51 +00:00
Dan Gohman
f152c7c967 Consistently put quotes around pass names in debugging output. 
llvm-svn: 53268
 2008-07-09 00:50:40 +00:00
Devang Patel
2b56d5281d If loop induction variable's start value is less then its exit value then do not split the loop. 
llvm-svn: 53265
 2008-07-09 00:12:01 +00:00
Dan Gohman
2e23cd5a18 const-ify SelectionDAG::getNodeValueTypes. 
llvm-svn: 53264
 2008-07-09 00:00:42 +00:00
Dan Gohman
9f1547684c It's no longer necessary to test if a MachineBasicBlock's 
parent is non-null. It now always is.

llvm-svn: 53263
 2008-07-08 23:59:09 +00:00
Dan Gohman
286e8f7295 Verify that MachineMemOperand alignment is a non-zero power of 2. 
llvm-svn: 53262
 2008-07-08 23:47:04 +00:00
Dan Gohman
5b24b3baef Factor out the code for computing an alignment value, and make it 
available to getAtomic in addition to just getLoad and getStore,
to prevent MachineMemOperands with 0 alignment.

llvm-svn: 53261
 2008-07-08 23:46:32 +00:00
Owen Anderson
d90ae5127e Fix the build. Apparently MachineInstr& is no longer implicitly convertable to MachineBasicBlock::iterator. 
llvm-svn: 53260
 2008-07-08 23:36:37 +00:00
Dan Gohman
e2169bec88 The graph name really does matter for configurations that use gv. 
llvm-svn: 53259
 2008-07-08 23:33:46 +00:00
Owen Anderson
caf8cb40e8 Make the local register allocator compute (purely local) liveness information for itself 
rather than depending on LiveVariables.  This decreases compile time from:
0.5909s (LV + Regalloc) to 0.421s (just regalloc).

llvm-svn: 53256
 2008-07-08 22:24:50 +00:00
Dale Johannesen
fee6f32586 Testcase for debug info from data-only files. 
This one is x86-32-Darwin specific.

llvm-svn: 53255
 2008-07-08 21:57:56 +00:00
Dale Johannesen
d609d7166c Make debug info come out in data-only files. 
This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.

llvm-svn: 53254
 2008-07-08 21:56:22 +00:00
Dale Johannesen
31b41acdd4 Remove some dead code. 
llvm-svn: 53253
 2008-07-08 21:53:43 +00:00
Nick Kledzik
59b22302bb fix dangling pointer and argv off by one errors. Add support for --disable-inlining 
llvm-svn: 53249
 2008-07-08 21:14:10 +00:00
Evan Cheng
a5621a1c54 Do not CSE DEBUG_LOC, DBG_LABEL, DBG_STOPPOINT, DECLARE, and EH_LABEL SDNode's. This improves compile time slightly at -O0 -g. 
llvm-svn: 53246
 2008-07-08 20:06:39 +00:00
Duncan Sands
9255845ac7 Remove custom expansion from LegalizeTypes when doing 
soft float: experiments show that targets aren't
expecting this for results or for operands.  Add
support select/select_cc result soft float and
correct operand soft float for these.

llvm-svn: 53245
 2008-07-08 20:03:24 +00:00
Duncan Sands
a41982af51 Add missing select_cc libcall line, somehow omitted 
in LegalizeTypes.

llvm-svn: 53244
 2008-07-08 20:00:05 +00:00
Chris Lattner
6163b7a5ad improve comment 
llvm-svn: 53243
 2008-07-08 18:47:38 +00:00
Chris Lattner
12ebc344e1 'Optimize' test 
llvm-svn: 53242
 2008-07-08 18:33:33 +00:00
Chris Lattner
c5d6ef88ff Add a new hidden option to the interpreter to cause it to print 
out every volatile load and store.  This is useful for tracking 
down insane volatile memory bugs.

llvm-svn: 53241
 2008-07-08 17:25:49 +00:00
Chris Lattner
c144216d78 Fix PR2496, a really nasty bug which involved sinking volatile loads 
into phis.  This is actually the same bug as PR2262 /
2008-04-29-VolatileLoadDontMerge.ll, but I missed checking the first 
predecessor for multiple successors.  Testcase here:
InstCombine/2008-07-08-VolatileLoadMerge.ll

llvm-svn: 53240
 2008-07-08 17:18:32 +00:00
Chris Lattner
7f0adf0b34 new testcase for PR2496 
llvm-svn: 53239
 2008-07-08 17:18:05 +00:00
Evan Cheng
6af015292e Unbreak C++ tests on x86 Darwin. 
llvm-svn: 53237
 2008-07-08 16:40:43 +00:00
Owen Anderson
1aebb33c1d Global variables beginning with \01 have special meaning on Darwin, so we need to remove 
the name prefix when we change them from internal to external.  This allows bugpointing
of codegen miscompilations to work more reliably on Darwin.

llvm-svn: 53236
 2008-07-08 16:38:42 +00:00
Duncan Sands
f9f4389fb7 LegalizeTypes support for FP_ROUND and FP_EXTEND 
soft float.

llvm-svn: 53231
 2008-07-08 10:50:55 +00:00
Duncan Sands
a6a427cb61 Testcase for PR2520. 
llvm-svn: 53230
 2008-07-08 10:11:36 +00:00
Duncan Sands
65028bf60d Add some helpers for manipulating function 
parameter attributes.

llvm-svn: 53228
 2008-07-08 09:41:30 +00:00
Duncan Sands
f21350341b Pacify gcc-4.3. 
llvm-svn: 53227
 2008-07-08 09:33:14 +00:00
Duncan Sands
7a6ba3f3a4 Note that 'nest' only applies to pointers. 
llvm-svn: 53226
 2008-07-08 09:27:25 +00:00
Matthijs Kooijman
4cf0a68307 Add CallSite::getArgumentNo() to be able to translate an operand number into a 
argument number.

llvm-svn: 53225
 2008-07-08 08:51:47 +00:00
Matthijs Kooijman
8aaa85f108 Add CallSite::getArgumentOffset() to hide the differences in operands betwen 
Call and Invoke in a single method instead of having it hardcoded in multiple
places.

llvm-svn: 53224
 2008-07-08 08:50:32 +00:00
Duncan Sands
b854603cb5 Add some convenience methods for manipulating 
call attributes.

llvm-svn: 53223
 2008-07-08 08:38:44 +00:00
Chris Lattner
d4bcc9011b Fix three bugs: 
1) evaluate [v]fcmp true/false with undefs to true or false instead
   of undef.
2) fix vector comparisons with undef to return a vector result instead 
   of i1
3) fix vector comparisons with evaluatable results to return vector
   true/false instead of i1 true/false (PR2529)

llvm-svn: 53220
 2008-07-08 05:46:34 +00:00
Chris Lattner
a046dec1c1 clarify :) 
llvm-svn: 53218
 2008-07-08 05:12:37 +00:00
Nick Lewycky
9cecc07bec Expand SCEVUDiv of power of 2 to a lshr instruction. 
llvm-svn: 53217
 2008-07-08 05:05:37 +00:00
Evan Cheng
5be1103646 Avoid unnecessary string construction during asm printing. 
llvm-svn: 53215
 2008-07-08 00:55:58 +00:00
Nick Kledzik
fb163aa055 add _lto_codegen_debug_options so that linker can use it 
llvm-svn: 53213
 2008-07-07 23:24:06 +00:00
Dan Gohman
cd25487258 Pool-allocation for MachineInstrs, MachineBasicBlocks, and 
MachineMemOperands. The pools are owned by MachineFunctions.

This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.

llvm-svn: 53212
 2008-07-07 23:14:23 +00:00