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Author SHA1 Message Date
Chris Lattner
efee605648 new bad case 
llvm-svn: 31156
 2006-10-24 16:12:47 +00:00
Jim Laskey
55d57252c3 Don't do dead block elimination in fast mode. 
llvm-svn: 31155
 2006-10-24 16:11:49 +00:00
Rafael Espindola
b35e4b16ae fix assert comment 
llvm-svn: 31154
 2006-10-24 14:47:28 +00:00
Jim Laskey
47b2dcf17f LinearScanner hotspot. 
llvm-svn: 31153
 2006-10-24 14:35:25 +00:00
Jim Laskey
605cf8cc6a Tighter data structure for deleted debug labels. 
llvm-svn: 31152
 2006-10-24 11:50:43 +00:00
Chris Lattner
0cf64c9469 Fix Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll 
llvm-svn: 31151
 2006-10-24 06:26:32 +00:00
Chris Lattner
bca9b5f4bc New testcase that crashes scalarrepl 
llvm-svn: 31150
 2006-10-24 06:26:08 +00:00
Chris Lattner
533b205309 move single basic blocks that are neither fallen into nor fall out of into 
a place more useful.  In particular, if we can put them in a place where code
will be able to fall into it, do so.  Otherwise, put it in a place it can fall
through into a successor.  Otherwise, if preventing a fallthrough, move to the
end of the function, out of the way.

This deletes several hundred unconditional branches from spass.

llvm-svn: 31149
 2006-10-24 01:12:32 +00:00
Chris Lattner
e38c95d2a3 Add intrinsics for the rest of the DCB* instructions. 
llvm-svn: 31148
 2006-10-24 01:08:42 +00:00
Chris Lattner
eb7ccde058 add missing dcb* intrinsics 
llvm-svn: 31147
 2006-10-24 01:07:39 +00:00
Chris Lattner
d13449ed3e Revert back to r1.21, which was the last revision of predsimplify that 
passes llvm-gcc bootstrap.

llvm-svn: 31146
 2006-10-24 00:36:21 +00:00
Chris Lattner
131eb21cc7 add moveBefore/moveAfter helper methods 
llvm-svn: 31145
 2006-10-24 00:02:26 +00:00
Devang Patel
b7f1981edd Fix typo. Add more comment. Avoid extra hash_map search. 
llvm-svn: 31144
 2006-10-23 23:57:53 +00:00
Chris Lattner
108484eb68 add two helper methods 
llvm-svn: 31143
 2006-10-23 23:35:35 +00:00
Devang Patel
5ff2903a58 Add removeModule(). 
llvm-svn: 31142
 2006-10-23 23:12:26 +00:00
Chris Lattner
0c3fabc9a4 Enable tail merging by default. 
llvm-svn: 31140
 2006-10-23 22:10:12 +00:00
Evan Cheng
66c0075a29 Update test case. 
llvm-svn: 31139
 2006-10-23 21:47:11 +00:00
Rafael Espindola
70f01d5cc0 implement STRB and STRH 
llvm-svn: 31138
 2006-10-23 20:34:27 +00:00
Rafael Espindola
357f151d9d expand ISD::MEMSET 
llvm-svn: 31137
 2006-10-23 20:08:22 +00:00
Andrew Lenharth
67fc2c366f Make these hack flags hidden, like other dsa hack flags 
llvm-svn: 31136
 2006-10-23 19:55:24 +00:00
Andrew Lenharth
20f5c4f47d Revert the aggressive inlining for now, it doesn't handle external correctly 
llvm-svn: 31135
 2006-10-23 19:53:37 +00:00
Andrew Lenharth
b22538d23c change this back 
llvm-svn: 31134
 2006-10-23 19:52:54 +00:00
Andrew Lenharth
daafe61834 restore these tests 
llvm-svn: 31133
 2006-10-23 19:52:27 +00:00
Chris Lattner
91e628645b Handle fallout from the recent branch-on-undef changes. This fixes 
Prolangs-C/agrep and SCCP/2006-10-23-IPSCCP-Crash.ll

llvm-svn: 31132
 2006-10-23 18:57:02 +00:00
Chris Lattner
f207a5475b new testcase 
llvm-svn: 31131
 2006-10-23 18:54:35 +00:00
Chris Lattner
06236f7928 Minor tweak. Instead of generating: 
movl 32(%esp), %eax
        cmpl $1, %eax
        je LBB1_1       #bb
LBB1_4: #entry
        cmpl $2, %eax
        je LBB1_2       #bb2
        jmp LBB1_3      #UnifiedReturnBlock
LBB1_1: #bb

notice that we would miss the fall through and emit this instead:

        movl 32(%esp), %eax
        cmpl $2, %eax
        je LBB1_2       #bb2
LBB1_4: #entry
        cmpl $1, %eax
        jne LBB1_3      #UnifiedReturnBlock
LBB1_1: #bb

llvm-svn: 31130
 2006-10-23 18:38:22 +00:00
Jim Laskey
f6a28d7161 More complete solution to deleting blocks and debug info. 
llvm-svn: 31129
 2006-10-23 14:56:37 +00:00
Jim Laskey
0eeabf8ff5 [SU]int update - inactive code may get activated someday 
llvm-svn: 31128
 2006-10-23 14:39:22 +00:00
Evan Cheng
1d4f5b942b Fix test case. 
llvm-svn: 31127
 2006-10-23 05:11:09 +00:00
Nick Lewycky
6830bee9b4 Remove the Backwards operation. Resolving now works at the time when a 
property is added by running through the list of uses of the value and
adding resolved properties to the property set.

llvm-svn: 31126
 2006-10-23 01:56:02 +00:00
Chris Lattner
d91d082100 Fix phi node updating for switches lowered to linear sequences of branches. 
llvm-svn: 31125
 2006-10-22 23:00:53 +00:00
Chris Lattner
f592f04e3f disable this code for now, it's not yet safely updating phi nodes 
llvm-svn: 31124
 2006-10-22 22:47:10 +00:00
Nick Lewycky
25e815f0a2 Fix similar missing optimization opportunity in XOR. 
llvm-svn: 31123
 2006-10-22 22:22:58 +00:00
Chris Lattner
3826e15c8d this part implemented. 
llvm-svn: 31122
 2006-10-22 21:40:12 +00:00
Nick Lewycky
5eec4941d1 Whoops! Add missing NULL check. 
llvm-svn: 31121
 2006-10-22 21:38:24 +00:00
Anton Korobeynikov
da7897a6c8 Do section switching right way for Mingw\Cygwin and Linux. 
This will allow (after llvm-gcc linkage fix) more dummy tests using
libstdc++ to pass on mingw :)

llvm-svn: 31120
 2006-10-22 21:37:13 +00:00
Chris Lattner
a07b38f113 Implement PR964 and Regression/CodeGen/Generic/SwitchLowering.ll 
llvm-svn: 31119
 2006-10-22 21:36:53 +00:00
Nick Lewycky
b81c926e06 Handle "if ((x|y) != 0)" for ints like we do for bools. Fixes missed 
optimization opportunity pointed out by Chris Lattner.

llvm-svn: 31118
 2006-10-22 21:36:41 +00:00
Chris Lattner
696ed4adae new testcase for PR964 
llvm-svn: 31117
 2006-10-22 21:36:06 +00:00
Nick Lewycky
c680dabd94 AllocaInst can't return a null pointer. Fixes missed optimization 
opportunity pointed out by Andrew Lewycky.

llvm-svn: 31115
 2006-10-22 19:53:27 +00:00
Chris Lattner
51e762d4cb Add a workaround for PR962, disabling the more aggressive form of this 
transformation.  This speeds up a C++ app 2.25x.

llvm-svn: 31113
 2006-10-22 18:42:26 +00:00
Reid Spencer
65b4f5b2dd Don't generate a prototype for _setjmp. At least on Linux, this function 
has a different prototype than the one #included from <setjmp.h>. This
patch fixes siod and a number of other test cases on Linux that were
failing the CBE because of this _setjmp issue.

llvm-svn: 31112
 2006-10-22 09:58:21 +00:00
Reid Spencer
9ca9ec40f1 Regenerate. 
llvm-svn: 31111
 2006-10-22 07:03:43 +00:00
Reid Spencer
9caeb2165b Remove unneeded CHECK_FOR_ERROR invocations. 
llvm-svn: 31110
 2006-10-22 07:03:09 +00:00
Chris Lattner
25fd3d8b99 regenerate 
llvm-svn: 31109
 2006-10-22 06:08:13 +00:00
Chris Lattner
0bf0490e0c change keyword to datalayout 
llvm-svn: 31108
 2006-10-22 06:07:41 +00:00
Chris Lattner
9e59066602 Change keyword to datalayout 
llvm-svn: 31107
 2006-10-22 06:06:56 +00:00
Chris Lattner
50b3810d9a 3 Changes: 
1. Better document what is going on here.
2. Only hack on one branch per iteration, making the results less conservative.
3. Handle the problematic case by marking edges executable instead of by
   playing with value lattice states.  This is far less pessimistic, and fixes
   SCCP/ipsccp-gvar.ll.

llvm-svn: 31106
 2006-10-22 05:59:17 +00:00
Chris Lattner
9b527c4477 New, wonderful isSuccessor method 
llvm-svn: 31103
 2006-10-21 06:50:05 +00:00
Chris Lattner
9e7d74961b don't break infinite loops 
llvm-svn: 31102
 2006-10-21 06:11:43 +00:00