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Author SHA1 Message Date
Reid Spencer
8f0bcc6b89 Add tests for nounwind and noreturn function attributes. 
llvm-svn: 35261
 2007-03-22 02:15:17 +00:00
Reid Spencer
478dcd0239 Add the NoUnwind function attribute. 
llvm-svn: 35260
 2007-03-22 02:14:48 +00:00
Reid Spencer
32096786f1 Regenerate. 
llvm-svn: 35259
 2007-03-22 02:14:08 +00:00
Reid Spencer
a483577d21 Add support for the noreturn and nounwind function attributes. 
llvm-svn: 35258
 2007-03-22 02:13:23 +00:00
Nick Lewycky
b0da7ed9c8 Fix broken optimization disabled by a logic bug. 
Analyze GEPs. If the indices are all zero, transfer whether the pointer is
known to be not null through the GEP.

Add a few more cases for xor and shift instructions.

llvm-svn: 35257
 2007-03-22 02:02:51 +00:00
Reid Spencer
05dbb9d002 Preview nounwind function attribute. 
llvm-svn: 35256
 2007-03-22 02:02:11 +00:00
Evan Cheng
9a95c6e7db Another test case. 
llvm-svn: 35255
 2007-03-22 01:55:16 +00:00
Evan Cheng
464dc9b74c More opportunities to reduce load size. 
llvm-svn: 35254
 2007-03-22 01:54:19 +00:00
Evan Cheng
51ace3b1f6 Test case for PR1257 
llvm-svn: 35253
 2007-03-22 01:52:57 +00:00
Evan Cheng
a20815e157 Fix for PR1257. Bug in live range shortening as a result of copy coalescing 
where the destination is dead.

llvm-svn: 35252
 2007-03-22 01:26:05 +00:00
Reid Spencer
fa9925e263 Test case for PR1248 
llvm-svn: 35251
 2007-03-22 00:49:40 +00:00
Reid Spencer
be7e9bc494 For PR1145: 
Add the NoUnwindAttribute to allow explicit marking of functions that do
not unwind the stack via the unwind instruction. This is akin to gcc's
NoThrow attribute and used for optimizing exception handling.

llvm-svn: 35250
 2007-03-22 00:32:02 +00:00
Anton Korobeynikov
be9c93c79c More LangRef fixes. Corrected names of intrinsics. 
llvm-svn: 35249
 2007-03-22 00:02:17 +00:00
Anton Korobeynikov
640bbe0a15 Fixed va_arg example. Reported by Roman Samoilov 
llvm-svn: 35248
 2007-03-21 23:58:04 +00:00
Reid Spencer
f40711637f For PR1248: 
* Fix some indentation and comments in InsertRangeTest
* Add an "IsSigned" parameter to AddWithOverflow and make it handle signed
  additions. Also, APIntify this function so it works with any bitwidth.
* For the icmp pred ([us]div %X, C1), C2 transforms, exit early if the
  div instruction's RHS is zero.
* Finally, for icmp pred (sdiv %X, C1), -C2, fix an off-by-one error. The
  HiBound needs to be incremented in order to get the range test correct.

llvm-svn: 35247
 2007-03-21 23:19:50 +00:00
Reid Spencer
925e8aa370 Fix a comment. 
llvm-svn: 35246
 2007-03-21 22:22:19 +00:00
Dale Johannesen
0c6bb5eab7 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Anton Korobeynikov
4ad4bcdc2d Add TODO list for MSIL backend 
llvm-svn: 35244
 2007-03-21 21:48:59 +00:00
Anton Korobeynikov
91549cef78 Add Roman to credits 
llvm-svn: 35243
 2007-03-21 21:45:25 +00:00
Anton Korobeynikov
aa3090d815 Let the new backend begin! 
llvm-svn: 35242
 2007-03-21 21:38:25 +00:00
Dale Johannesen
a827d03154 add generation of unnecessary push/pop around calls 
llvm-svn: 35241
 2007-03-21 21:16:39 +00:00
Evan Cheng
a7f81f29ce New test case. 
llvm-svn: 35240
 2007-03-21 20:14:56 +00:00
Evan Cheng
d63baead9b fold (truncate (srl (load x), c)) -> (smaller load (x+c/vt bits)) 
llvm-svn: 35239
 2007-03-21 20:14:05 +00:00
Reid Spencer
2f8fa50bb3 Regenerate. 
llvm-svn: 35237
 2007-03-21 17:27:53 +00:00
Reid Spencer
20337a5e76 For PR1243: 
Okay, really fix it this time. Make sure the CurFun.Linkage is set early
and consolidate some duplicate code.

llvm-svn: 35236
 2007-03-21 17:26:41 +00:00
Reid Spencer
77e0bba30c Regenerate. 
llvm-svn: 35235
 2007-03-21 17:15:50 +00:00
Reid Spencer
6ae04faffb For PR1256: 
Make Signedness information pervasive throughout all types and values.
There is no easy way to get around this. Because the GEP instruction can
index through an arbitrarily complex value structure, it is necessary to
keep track of signedness information throughout that structure. This change
makes Signedness a full class, capable of representing Signedness in
arbitrarily shaped types. The class is then used throughout llvm-upgrade to
track signedness and differentiate between globals, locals, and functions
based on their signedness.

For PR1243:
This patch also removes bogus warnings about renaming internal globals. It
now only emits such warnings when renaming non-internal globals because
they may affect linkage.

llvm-svn: 35234
 2007-03-21 17:14:36 +00:00
Nicolas Geoffray
4ea5217880 Protect R31's frame offset from being used by callee-saved registers, when R31 
is the frame pointer.

llvm-svn: 35233
 2007-03-21 16:44:14 +00:00
Zhou Sheng
0458c1db71 Fix a bug in getAllOnesValue() which broke 
some test cases for bitwidth > 64.

llvm-svn: 35232
 2007-03-21 04:34:37 +00:00
Evan Cheng
61eee86487 Mark re-materializable instructions. 
llvm-svn: 35230
 2007-03-21 00:16:56 +00:00
Evan Cheng
cba9538499 Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Evan Cheng
3578dd61c6 Potential spiller improvement. 
llvm-svn: 35228
 2007-03-20 22:22:38 +00:00
Dale Johannesen
bacf4acf65 do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)

llvm-svn: 35227
 2007-03-20 21:54:54 +00:00
Dale Johannesen
d05a1a2ade maintain LiveIn when splitting blocks (register scavenging needs it) 
llvm-svn: 35226
 2007-03-20 21:35:06 +00:00
Devang Patel
eb5d241d00 DominanceFrontier::calculate(). 
Avoid recursion, Use iterative algorithm.

llvm-svn: 35225
 2007-03-20 21:25:31 +00:00
Jeff Cohen
1baf5c84ab Fix some VC++ warnings. 
llvm-svn: 35224
 2007-03-20 20:43:18 +00:00
Jeff Cohen
e06855e684 Fix (and simplify) 48-bit byte swap. 
Get pos/neg infinity the correct way.

llvm-svn: 35223
 2007-03-20 20:42:36 +00:00
Devang Patel
b39885d23d LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35222
 2007-03-20 20:19:48 +00:00
Devang Patel
1758cb50de LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35221
 2007-03-20 20:18:12 +00:00
Lauro Ramos Venancio
971aa18867 Code clean up. 
llvm-svn: 35220
 2007-03-20 20:09:03 +00:00
Evan Cheng
550cf0369c Minor bug. 
llvm-svn: 35219
 2007-03-20 19:32:11 +00:00
Lauro Ramos Venancio
a88c4a74f3 bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 
mov lr, pc
    bx lr
So, the function was not called.

llvm-svn: 35218
 2007-03-20 17:57:23 +00:00
Chris Lattner
cdf6823e10 llvm-gcc now requires -fnested-functions to enable them in C. 
llvm-svn: 35217
 2007-03-20 17:34:31 +00:00
Reid Spencer
98f0709618 Break up huge line so that this file is almost readable. 
llvm-svn: 35216
 2007-03-20 17:27:19 +00:00
Reid Spencer
8d364d0e17 Regenerate. 
llvm-svn: 35215
 2007-03-20 17:19:31 +00:00
Reid Spencer
0ad5cebb09 Don't delete things before their last use (avoids bad reads). 
llvm-svn: 35214
 2007-03-20 17:18:33 +00:00
Lauro Ramos Venancio
25878b45f5 CopyToReg source operand can be a physical register. 
llvm-svn: 35213
 2007-03-20 16:46:44 +00:00
Duncan Sands
76e4fdf879 Test handling of structs with multiple variable-sized fields. 
llvm-svn: 35212
 2007-03-20 14:13:20 +00:00
Zhou Sheng
b3949340c8 Simplify isHighOnes(). 
llvm-svn: 35211
 2007-03-20 12:49:06 +00:00
Duncan Sands
dd066c34a9 Ada testcase for structs with multiple variable sized fields. 
llvm-svn: 35210
 2007-03-20 09:54:02 +00:00