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Author SHA1 Message Date
Rafael Espindola
f7d4a9900c Implement a MachineFunctionPass to fix the mul instruction 
llvm-svn: 30485
 2006-09-19 15:49:25 +00:00
Chris Lattner
dc892c6221 number test right 
llvm-svn: 30484
 2006-09-19 06:19:19 +00:00
Chris Lattner
b94df039c0 item done 
llvm-svn: 30483
 2006-09-19 06:19:03 +00:00
Chris Lattner
12f52faf93 implement select.ll:test19-22 
llvm-svn: 30482
 2006-09-19 06:18:21 +00:00
Chris Lattner
aa0ad47e97 make this harder 
llvm-svn: 30481
 2006-09-19 06:17:55 +00:00
Chris Lattner
db4fbdd1a6 new testcases 
llvm-svn: 30480
 2006-09-19 06:16:46 +00:00
Chris Lattner
3c48ea54ee Fold the PPCISD shifts when presented with 0 inputs. This occurs for code 
like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

llvm-svn: 30479
 2006-09-19 05:22:59 +00:00
Chris Lattner
5a42ebcff3 Fold extract_element(cst) to cst 
llvm-svn: 30478
 2006-09-19 05:02:39 +00:00
Chris Lattner
4c059f4962 Minor speedup for legalize by avoiding some malloc traffic 
llvm-svn: 30477
 2006-09-19 04:51:23 +00:00
Chris Lattner
bea5f91946 If multiple predicates are listed, they must all pass 
llvm-svn: 30476
 2006-09-19 00:41:36 +00:00
Nick Lewycky
5cc1e9b51d Enable dejagnu tests for predicate simplifier. 
llvm-svn: 30475
 2006-09-19 00:31:54 +00:00
Evan Cheng
1fc7c363e6 Fix a typo. 
llvm-svn: 30474
 2006-09-18 23:28:33 +00:00
Chris Lattner
bba17b9913 There! 
llvm-svn: 30473
 2006-09-18 22:41:07 +00:00
Chris Lattner
82a73a1989 Fix Regression/TableGen/2006-09-18-LargeInt.td 
llvm-svn: 30472
 2006-09-18 22:28:27 +00:00
Chris Lattner
165f344721 new testcase 
llvm-svn: 30471
 2006-09-18 22:28:07 +00:00
Evan Cheng
4bfaf0bd2c Allow i32 UDIV, SDIV, UREM, SREM to be expanded into libcalls. 
llvm-svn: 30470
 2006-09-18 21:49:04 +00:00
Nick Lewycky
b9c5483a93 Walk down the dominator tree instead of the control flow graph. That means 
that we can't modify the CFG any more, at least not until it's possible
to update the dominator tree (PR217).

llvm-svn: 30469
 2006-09-18 21:09:35 +00:00
Nick Lewycky
86bda361b0 Fix findCaseDest to return null when BB is both the default dest and one 
of the numeric cases.

llvm-svn: 30468
 2006-09-18 20:44:37 +00:00
Andrew Lenharth
f23e3bfcb2 A pass to remove the worst of the replay trap offenders, and as a bonus, align basic blocks when it is free to do so 
llvm-svn: 30467
 2006-09-18 19:44:29 +00:00
Nick Lewycky
51cb632a1b Add a new helper method to SwitchInst. Useful when you've got a BB from 
somewhere (like the dominator graph) and would like to know which case it
came from.

llvm-svn: 30466
 2006-09-18 19:03:59 +00:00
Chris Lattner
de07792595 Fix an infinite loop building the CFE 
llvm-svn: 30465
 2006-09-18 18:27:05 +00:00
Chris Lattner
3425123ced new testcase 
llvm-svn: 30464
 2006-09-18 18:07:51 +00:00
Andrew Lenharth
3aa3ad780e Jump tables on Alpha 
llvm-svn: 30463
 2006-09-18 18:01:03 +00:00
Andrew Lenharth
51ad73c98c oops 
llvm-svn: 30462
 2006-09-18 18:00:18 +00:00
Andrew Lenharth
c50458fb90 absolute addresses must match pointer size 
llvm-svn: 30461
 2006-09-18 17:59:35 +00:00
Jim Laskey
d30bba331f Sort out mangled names for globals 
llvm-svn: 30460
 2006-09-18 14:47:26 +00:00
Chris Lattner
67a35bbce7 Implement a trivial optzn: of vastart is never called in a function that takes 
... args, remove the '...'.

This is Transforms/DeadArgElim/dead_vaargs.ll

llvm-svn: 30459
 2006-09-18 07:02:31 +00:00
Chris Lattner
5c1bfd0311 new testcase 
llvm-svn: 30458
 2006-09-18 07:01:39 +00:00
Chris Lattner
523dbc5c19 add a note. Our 64-bit shifts are ~30% slower than gcc's 
llvm-svn: 30457
 2006-09-18 05:36:54 +00:00
Chris Lattner
4922a0e53f Implement InstCombine/cast.ll:test31. This speeds up 462.libquantum by 26%. 
llvm-svn: 30456
 2006-09-18 05:27:43 +00:00
Chris Lattner
52d170fc94 new testcase 
llvm-svn: 30455
 2006-09-18 05:25:10 +00:00
Chris Lattner
04fb628ea6 Add support for pattern matching cast operations 
llvm-svn: 30454
 2006-09-18 05:17:11 +00:00
Chris Lattner
8f499f1772 fix typo 
llvm-svn: 30453
 2006-09-18 04:58:06 +00:00
Chris Lattner
b0b8ddd175 add a helper method 
llvm-svn: 30452
 2006-09-18 04:54:57 +00:00
Chris Lattner
4a13d3b391 This is closer to what we really want. 
llvm-svn: 30451
 2006-09-18 04:54:35 +00:00
Chris Lattner
420c4bcc8d Implement Transforms/InstCombine/shift-sra.ll:test0 
llvm-svn: 30450
 2006-09-18 04:31:40 +00:00
Chris Lattner
00a07af638 New testcase, can be an srl instead of sra 
llvm-svn: 30449
 2006-09-18 04:31:18 +00:00
Chris Lattner
b3f24c91b0 Rewrite shift/and/compare sequences to promote better licm of the RHS. 
Use isLogicalShift/isArithmeticShift to simplify code.

llvm-svn: 30448
 2006-09-18 04:22:48 +00:00
Reid Spencer
99dedf4a44 Make the LLVM Publications link point to /pubs/ since this has moved to 
its own page on the LLVM web site.

llvm-svn: 30447
 2006-09-17 23:05:15 +00:00
Anton Korobeynikov
6f7072c66a Added some eye-candy for Subtarget type checking 
Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446
 2006-09-17 20:25:45 +00:00
Chris Lattner
f16dc007e6 Add ShiftInst::isLogical/ArithmeticShift methods. 
llvm-svn: 30445
 2006-09-17 19:29:56 +00:00
Chris Lattner
e1496fbb33 Add new SetCondInst::isRelational/isEquality methods. Rename 
Instruction::isRelational to Instruction::isComparison.

llvm-svn: 30444
 2006-09-17 19:14:47 +00:00
Nick Lewycky
241211939d Explain change with a comment. 
llvm-svn: 30443
 2006-09-17 17:51:00 +00:00
Nick Lewycky
c7b465366a Fix PR912. The input to erase() must not be a reference to the data 
being erased.

llvm-svn: 30442
 2006-09-17 16:23:36 +00:00
Anton Korobeynikov
0ab01ff6e2 Small fixes for supporting dll* linkage types 
llvm-svn: 30441
 2006-09-17 13:06:18 +00:00
Chris Lattner
f7e3478745 add a note noticed through source inspection 
llvm-svn: 30418
 2006-09-16 23:57:51 +00:00
Chris Lattner
e50f5d1fb1 Oh yeah, this is needed too 
llvm-svn: 30407
 2006-09-16 05:08:34 +00:00
Chris Lattner
63b113f68c add a note 
llvm-svn: 30406
 2006-09-16 03:30:19 +00:00
Chris Lattner
850465d53f Fix Transforms/InstCombine/2006-09-15-CastToBool.ll and PR913 
llvm-svn: 30405
 2006-09-16 03:14:10 +00:00
Chris Lattner
5772ba4f50 Testcase for PR913 
llvm-svn: 30404
 2006-09-16 03:13:22 +00:00