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Author SHA1 Message Date
Dan Gohman
4651780f86 Use the AliasAnalysis interface to determine how a Function accesses 
memory. This isn't a real improvement with present day AliasAnalysis
implementations; it's mainly for consistency.

llvm-svn: 118624
 2010-11-09 20:13:27 +00:00
Dan Gohman
ebeb34d412 VAArg doesn't capture its operand. 
llvm-svn: 118623
 2010-11-09 20:09:35 +00:00
Dan Gohman
357342a9b8 Translate IntrReadArgMem to AccessesArgumentsReadonly. 
llvm-svn: 118622
 2010-11-09 20:07:20 +00:00
Dan Gohman
f82eabd648 Teach AliasAnalysis about AccessesArgumentsReadonly. 
llvm-svn: 118621
 2010-11-09 20:06:55 +00:00
Dan Gohman
1308376ebf Teach LICM and AliasSetTracker about AccessesArgumentsReadonly. 
llvm-svn: 118618
 2010-11-09 19:58:21 +00:00
Dan Gohman
4cba066d9f Teach FunctionAttrs about AccessesArgumentsReadonly. 
llvm-svn: 118617
 2010-11-09 19:56:27 +00:00
Matt Beaumont-Gay
0f262ff853 Add a trivial virtual dtor to AbstractRegisterDescription to appease 
-Wnon-virtual-dtor.

llvm-svn: 118616
 2010-11-09 19:56:25 +00:00
Dan Gohman
27fb58d9c7 AccessesArgumentsReadonly is read-only. 
llvm-svn: 118615
 2010-11-09 19:50:00 +00:00
Dan Gohman
d50f969460 Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsic 
property IntrReadArgMem can be modeled.

llvm-svn: 118614
 2010-11-09 19:48:55 +00:00
Andrew Trick
6b9d6df8c3 Reverting r118604. Windows build broke. 
llvm-svn: 118613
 2010-11-09 19:47:51 +00:00
Dan Gohman
9bdf92c92c Factor out the logic for onlyReadsMemory into a helper function. 
llvm-svn: 118611
 2010-11-09 19:43:24 +00:00
Dan Gohman
3de0bd24db Delete AccessesArgumentsAndGlobals, which was unused. 
llvm-svn: 118610
 2010-11-09 19:41:37 +00:00
Jim Grosbach
d98cc456d2 Handle ARM constant pool values that need an explicit reference to the '.' 
pseudo-label. (TLS stuff).

llvm-svn: 118609
 2010-11-09 19:40:22 +00:00
Chris Lattner
d7d7d5717b add a case we fail to devirt. 
llvm-svn: 118608
 2010-11-09 19:37:28 +00:00
Jim Grosbach
ce5c2dbeae Trailing whitespace. 
llvm-svn: 118606
 2010-11-09 19:22:26 +00:00
Andrew Trick
ce7b5df15e Adds RABasic verification and tracing. 
llvm-svn: 118604
 2010-11-09 19:01:17 +00:00
Jim Grosbach
2c60dfb555 Further MCize ARM constant pool values. This allows basic PIC references for 
object file emission.

llvm-svn: 118601
 2010-11-09 18:45:04 +00:00
Jim Grosbach
abe68922ca Add encoding of Rt to ARM LDR/STR w/ reg+reg offset encoding. 
llvm-svn: 118600
 2010-11-09 18:43:54 +00:00
Owen Anderson
a08bcc13b3 Last try to get this reference counting right, I swear. 
llvm-svn: 118589
 2010-11-09 17:47:10 +00:00
Owen Anderson
1fd660701c Really fix the leak in the attributes list. Thanks to Benjamin Kramer for pointing out how I was being stupid. 
llvm-svn: 118588
 2010-11-09 17:46:38 +00:00
Jim Grosbach
08310de036 For ARM load/store instructions, encode [reg+reg] with no shifter immediate as 
a left shift by zero.

llvm-svn: 118587
 2010-11-09 17:38:15 +00:00
Jim Grosbach
0a8517fd62 ARM .word data fixups don't need an adjustment. 
llvm-svn: 118586
 2010-11-09 17:36:59 +00:00
Duncan Sands
f68789ed87 Factorize code, no functionality change. 
llvm-svn: 118516
 2010-11-09 17:25:51 +00:00
Bruno Cardoso Lopes
81f7b26109 Fix trailing whitespace and style, no functionality change 
llvm-svn: 118515
 2010-11-09 17:25:34 +00:00
Jim Grosbach
f64560f315 Add encoder method for ARM load/store shifted register offset operands. 
llvm-svn: 118513
 2010-11-09 17:20:53 +00:00
Duncan Sands
a6d539ccbc Testcase for PR8211 (llc crash at -O0). 
llvm-svn: 118509
 2010-11-09 16:22:27 +00:00
Michael J. Spencer
aa24a317fe System/Path/Windows: Implement GetLLVMDefaultConfigDir. 
llvm-svn: 118507
 2010-11-09 15:11:42 +00:00
Michael J. Spencer
ad6bc07ddf System/Path/Windows: Generalize GetUserHomeDirectory. 
llvm-svn: 118506
 2010-11-09 15:11:31 +00:00
Michael J. Spencer
f8dfe421d1 System/Path/Windows: Make GetSystemLibraryPaths more generic. 
llvm-svn: 118505
 2010-11-09 15:11:19 +00:00
Michael J. Spencer
c1f741635e System/Windows: Reduce dependencies. 
llvm-svn: 118504
 2010-11-09 15:11:07 +00:00
Michael J. Spencer
55503cd933 System/Windows: Use normalized case and include method. 
llvm-svn: 118503
 2010-11-09 15:10:56 +00:00
Michael J. Spencer
3ae9fd29ae System/Path/Windows: Change GetRootDirectory to return file:/// instead of C:/. 
llvm-svn: 118502
 2010-11-09 15:10:45 +00:00
Michael J. Spencer
9d3766f99b Update comment. 
llvm-svn: 118501
 2010-11-09 15:10:29 +00:00
Owen Anderson
7aecff35de Fix leak in my recent fix for PR8442. 
llvm-svn: 118490
 2010-11-09 05:17:47 +00:00
Dan Gohman
903935bf3e Fix DAGCombiner to avoid folding a sext-in-reg or similar through a shl 
in order to fold it into a load.

llvm-svn: 118471
 2010-11-09 01:54:35 +00:00
Dan Gohman
f78cd9006b Delete an extraneous svn:executable property. 
llvm-svn: 118470
 2010-11-09 01:51:06 +00:00
Jim Grosbach
0b06d57ccd Add support for a few simple fixups to the ARM Darwin asm backend. This allows 
constant pool references and global variable refernces to resolve properly
for object file generation. For example,

int x;
void foo(unsigned a, unsigned *p) {
  p[a] = x;
}

can now be successfully compiled directly to an (ARM mode) object file.

llvm-svn: 118469
 2010-11-09 01:37:15 +00:00
Dale Johannesen
88f85df7f7 Fix an inline asm pasto from 117667; was preventing 
{i64, i64} from matching i128.

llvm-svn: 118465
 2010-11-09 01:15:07 +00:00
Dan Gohman
7df4b826a1 Fix some places where error messages were being swallowed. 
llvm-svn: 118464
 2010-11-09 01:13:31 +00:00
Owen Anderson
77676a8f1d Fix PR8441, a thread unsafe static variable in our dynamic library loading facilities. 
llvm-svn: 118463
 2010-11-09 00:36:06 +00:00
Bill Wendling
41fb74d268 Revert r118457 and r118458. These won't hold for GPRs. 
llvm-svn: 118462
 2010-11-09 00:30:18 +00:00
Owen Anderson
a5c69eec12 Fix PR8441, a race condition in the static attributes list. While the reference counting was itself threadsafe, 
the implicit removal of each object from the global list was not.  Make this operation atomic.

llvm-svn: 118461
 2010-11-09 00:27:03 +00:00
Bill Wendling
f080f8ddfe Get the register and count from the register list operands. 
llvm-svn: 118458
 2010-11-08 23:51:20 +00:00
Bill Wendling
ab76e02a12 reglist has two operands. 
llvm-svn: 118457
 2010-11-08 23:50:20 +00:00
Bill Wendling
2ff2ee2765 The "addRegListOperands()" function returns the start register and the total 
number of registers in the list.

llvm-svn: 118456
 2010-11-08 23:49:57 +00:00
Dan Gohman
227bf9fea9 Add some comments noting some correspondences between ModRefBehavior 
values, LLVM IR function attributes, and LLVM intrinsic attributes.

llvm-svn: 118455
 2010-11-08 23:46:02 +00:00
Owen Anderson
52e3873edc Add support for ARM's specialized vector-compare-against-zero instructions. 
llvm-svn: 118453
 2010-11-08 23:21:22 +00:00
Bruno Cardoso Lopes
64dd957550 Initial support for Mips32 and Mips32r2. Patch contributed by Akira Hatanaka (ahatanaka@mips.com) 
llvm-svn: 118447
 2010-11-08 21:42:32 +00:00
Bill Wendling
3e6eee5c35 Add "write back" bit encoding. 
llvm-svn: 118446
 2010-11-08 21:28:03 +00:00
Bruno Cardoso Lopes
9f9f796756 Fix PR8211 
llvm-svn: 118445
 2010-11-08 21:24:59 +00:00