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790275342a
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Author SHA1 Message Date
Chris Lattner
790275342a Fix CodeGen/IA64/ret-0.ll, which has apparently been broken since some of the 
isel changes happened months ago.

llvm-svn: 31164
 2006-10-24 17:09:43 +00:00
Chris Lattner
3b42d11f6e new testcase 
llvm-svn: 31163
 2006-10-24 17:09:20 +00:00
Rafael Espindola
2259fab5cf fix warning about missing newline at end of file 
llvm-svn: 31162
 2006-10-24 17:07:11 +00:00
Chris Lattner
fc8e70297e generalize 'CaseBlock'. It really allows any comparison to be inserted. 
llvm-svn: 31161
 2006-10-24 17:03:35 +00:00
Chris Lattner
71dc932fcb implement uncond branch insertion, mark branches with isBranch. 
llvm-svn: 31160
 2006-10-24 16:47:57 +00:00
Chris Lattner
34b009bf45 implement uncond branch insertion for the branch folding pass 
llvm-svn: 31159
 2006-10-24 16:44:55 +00:00
Chris Lattner
27b79c117a implement uncond branch insertion so alpha works work branchfolding. 
llvm-svn: 31158
 2006-10-24 16:41:36 +00:00
Chris Lattner
f899cf0dc5 implement uncond branch insertion for sparc to fix regressions from last night 
due to branchfolding

llvm-svn: 31157
 2006-10-24 16:39:19 +00:00
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