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Author SHA1 Message Date
Reid Spencer
648d9f53ca Add tests for nounwind and noreturn function attributes. 
llvm-svn: 35261
 2007-03-22 02:15:17 +00:00
Reid Spencer
a2d8b5e7a1 Add the NoUnwind function attribute. 
llvm-svn: 35260
 2007-03-22 02:14:48 +00:00
Reid Spencer
620297a20c Regenerate. 
llvm-svn: 35259
 2007-03-22 02:14:08 +00:00
Reid Spencer
6890147648 Add support for the noreturn and nounwind function attributes. 
llvm-svn: 35258
 2007-03-22 02:13:23 +00:00
Nick Lewycky
428523f51a 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
3dd6681b9e Preview nounwind function attribute. 
llvm-svn: 35256
 2007-03-22 02:02:11 +00:00
Evan Cheng
9992bbc5a0 Another test case. 
llvm-svn: 35255
 2007-03-22 01:55:16 +00:00
Evan Cheng
d7be4893f4 More opportunities to reduce load size. 
llvm-svn: 35254
 2007-03-22 01:54:19 +00:00
Evan Cheng
1a651088b1 Test case for PR1257 
llvm-svn: 35253
 2007-03-22 01:52:57 +00:00
Evan Cheng
da92165bab 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
8862d80d67 Test case for PR1248 
llvm-svn: 35251
 2007-03-22 00:49:40 +00:00
Reid Spencer
17f3eeaf48 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
61b9366c9f More LangRef fixes. Corrected names of intrinsics. 
llvm-svn: 35249
 2007-03-22 00:02:17 +00:00
Anton Korobeynikov
cdfb4988d9 Fixed va_arg example. Reported by Roman Samoilov 
llvm-svn: 35248
 2007-03-21 23:58:04 +00:00
Reid Spencer
bdfbda05fb 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
76c1fef30a Fix a comment. 
llvm-svn: 35246
 2007-03-21 22:22:19 +00:00
Dale Johannesen
44c0a5d545 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Anton Korobeynikov
c0842af02d Add TODO list for MSIL backend 
llvm-svn: 35244
 2007-03-21 21:48:59 +00:00
Anton Korobeynikov
717056a7b5 Add Roman to credits 
llvm-svn: 35243
 2007-03-21 21:45:25 +00:00
Anton Korobeynikov
bc43d296b2 Let the new backend begin! 
llvm-svn: 35242
 2007-03-21 21:38:25 +00:00
Dale Johannesen
fb7b59f5dd add generation of unnecessary push/pop around calls 
llvm-svn: 35241
 2007-03-21 21:16:39 +00:00
Evan Cheng
ecfd152e0d New test case. 
llvm-svn: 35240
 2007-03-21 20:14:56 +00:00
Evan Cheng
9867632e64 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
7e5dbe3441 Regenerate. 
llvm-svn: 35237
 2007-03-21 17:27:53 +00:00
Reid Spencer
e4fa26b209 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
d1f592b16f Regenerate. 
llvm-svn: 35235
 2007-03-21 17:15:50 +00:00
Reid Spencer
4149df60dd 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
205541ef78 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
427b6bec97 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
00a5cbf9e7 Mark re-materializable instructions. 
llvm-svn: 35230
 2007-03-21 00:16:56 +00:00
Evan Cheng
fb9c4c2edc Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Evan Cheng
516a83595d Potential spiller improvement. 
llvm-svn: 35228
 2007-03-20 22:22:38 +00:00
Dale Johannesen
3e422e3b49 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
50a22f6fe6 maintain LiveIn when splitting blocks (register scavenging needs it) 
llvm-svn: 35226
 2007-03-20 21:35:06 +00:00
Devang Patel
3a426e1c86 DominanceFrontier::calculate(). 
Avoid recursion, Use iterative algorithm.

llvm-svn: 35225
 2007-03-20 21:25:31 +00:00
Jeff Cohen
8dea6ada6f Fix some VC++ warnings. 
llvm-svn: 35224
 2007-03-20 20:43:18 +00:00
Jeff Cohen
21c7fc9c1f 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
19dae84536 LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35222
 2007-03-20 20:19:48 +00:00
Devang Patel
18146cf2a2 LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35221
 2007-03-20 20:18:12 +00:00
Lauro Ramos Venancio
632ac0e289 Code clean up. 
llvm-svn: 35220
 2007-03-20 20:09:03 +00:00
Evan Cheng
fe301e0f29 Minor bug. 
llvm-svn: 35219
 2007-03-20 19:32:11 +00:00
Lauro Ramos Venancio
11d7d3fcaf 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
797cae1109 llvm-gcc now requires -fnested-functions to enable them in C. 
llvm-svn: 35217
 2007-03-20 17:34:31 +00:00
Reid Spencer
3e9e08791f Break up huge line so that this file is almost readable. 
llvm-svn: 35216
 2007-03-20 17:27:19 +00:00
Reid Spencer
d37f0f007d Regenerate. 
llvm-svn: 35215
 2007-03-20 17:19:31 +00:00
Reid Spencer
3cc307f4d7 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
9659c8befc CopyToReg source operand can be a physical register. 
llvm-svn: 35213
 2007-03-20 16:46:44 +00:00
Duncan Sands
1f0efa2270 Test handling of structs with multiple variable-sized fields. 
llvm-svn: 35212
 2007-03-20 14:13:20 +00:00
Zhou Sheng
0ae1c9e1ad Simplify isHighOnes(). 
llvm-svn: 35211
 2007-03-20 12:49:06 +00:00
Duncan Sands
cdf52c92a9 Ada testcase for structs with multiple variable sized fields. 
llvm-svn: 35210
 2007-03-20 09:54:02 +00:00