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Author SHA1 Message Date
Jim Laskey
26f7fa7bba Make it simplier to dump DAGs while in DAGCombiner. Remove a nasty optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31009 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 19:33:52 +00:00
Rafael Espindola
3f3a6f6c3b remove extra [] in stores 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31008 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 18:29:14 +00:00
Chris Lattner
ffddf6ba1c Enable deleting branches to successor blocks. With the previous patches, 
branch folding can now compile stuff like this:

void foo(int W, int X, int Y, int Z) {
  if (W & 1) {
    for (; X;--X) bar();
  } else if (W & 2) {
    for (; Y;--Y) bar();
  } else if (W & 4) {
    for (; Z;--Z) bar();
  } else if (W & 8) {
    for (; W;--W) bar();
  }

  if (W) {
    bar();
  }
}

contrived testcase where loops exits all end up merging together.  To have
the loop merges be:

...
        cmplw cr0, r30, r27
        bne cr0, LBB1_14        ;bb38
LBB1_16:        ;cond_next48.loopexit
        mr r27, r29
LBB1_20:        ;cond_next48
        cmplwi cr0, r27, 0
        beq cr0, LBB1_22        ;UnifiedReturnBlock
...

instead of:


...
        cmplw cr0, r30, r27
        bne cr0, LBB1_14        ;bb38
LBB1_16:        ;cond_next48.loopexit
        mr r27, r29
        b LBB1_20       ;cond_next48
LBB1_17:        ;cond_next48.loopexit1
        b LBB1_20       ;cond_next48
LBB1_18:        ;cond_next48.loopexit2
        b LBB1_20       ;cond_next48
LBB1_19:        ;cond_next48.loopexit3
LBB1_20:        ;cond_next48
        cmplwi cr0, r27, 0
        beq cr0, LBB1_22        ;UnifiedReturnBlock
...


This is CodeGen/PowerPC/branch-opt.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31006 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 18:16:40 +00:00
Chris Lattner
065a13fd69 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31005 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 18:14:39 +00:00
Chris Lattner
2dc7723474 add support for inserting an uncond branch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31003 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 18:06:55 +00:00
Rafael Espindola
32bd5f4f6a initial implementation of addressing mode 5 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31002 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 18:04:53 +00:00
Jim Laskey
99e41eed6d Clean up interface to getGlobalLinkName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31001 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 17:17:24 +00:00
Chris Lattner
c50ffcb7fc Reenable this pass, fixing the bugs in it. 
It now correctly deletes unreachable blocks and blocks that are empty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31000 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 17:13:52 +00:00
Evan Cheng
5d04a1af4f Make sure operand does have size and element type operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30999 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 17:06:35 +00:00
Rafael Espindola
0d479ecbb1 add the immediate to the Offset in eliminateFrameIndex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30998 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 14:34:02 +00:00
Jim Laskey
a1a19f803c Basic support for getGlobalLinkName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30997 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 13:41:07 +00:00
Rafael Espindola
f621abca9e add FSTD and FSTS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30996 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 13:36:07 +00:00
Rafael Espindola
199dd67c50 add FCPYS and FCPYD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30995 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 13:13:23 +00:00
Jim Laskey
5059dda6bd Use S_debug for dwarf info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30994 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 11:30:57 +00:00
Evan Cheng
f896d1e247 Proper fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30993 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-17 00:24:49 +00:00
Evan Cheng
cf92230e3e One more try. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30992 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 23:44:08 +00:00
Reid Spencer
ac5209e5fe Undo Chris' last patch, it caused a regression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30991 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 23:08:08 +00:00
Evan Cheng
348b00dc49 Unbreak x86-64 build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30990 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 22:53:28 +00:00
Evan Cheng
5956922a2d Be careful when looking through a vbit_convert. Optimizing this: 
(vector_shuffle
  (vbitconvert (vbuildvector (copyfromreg v4f32), 1, v4f32), 4, f32),
  (undef, undef, undef, undef), (0, 0, 0, 0), 4, f32)
to the
  vbitconvert
is a very bad idea.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30989 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 22:49:37 +00:00
Rafael Espindola
a605be69c3 add fdivs e fdivd 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30988 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 21:50:04 +00:00
Rafael Espindola
0505be03ad expand ISD::SHL_PARTS, ISD::SRA_PARTS and ISD::SRL_PARTS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30987 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 21:10:32 +00:00
Evan Cheng
93b11f8284 Added a X86CompilationCallback variant which saves XMM argument registers for targets with SSE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30986 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 21:01:55 +00:00
Evan Cheng
751c0e12db Proper fix for rdar://problem/4770604 Thanks to Stuart Hastings! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30985 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 21:00:37 +00:00
Jim Laskey
c7c3f110ed Pass AliasAnalysis thru to DAGCombiner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30984 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 20:52:31 +00:00
Chris Lattner
a7fa1476b6 add a ReplaceMBBInJumpTables method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30983 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 20:41:42 +00:00
Jim Laskey
ba8a2ee548 Global name regression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30982 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 19:38:41 +00:00
Rafael Espindola
27e469ef13 define the DFPBinOp class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30981 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 18:39:22 +00:00
Rafael Espindola
a6f149d548 add the FPBinOp class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30980 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 18:32:36 +00:00
Rafael Espindola
90057aaeb7 define the Addr1BinOp class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30979 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 18:18:14 +00:00
Rafael Espindola
15a6c3e976 define the IntBinOp class and use it to implement the multiply instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30978 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 17:57:20 +00:00
Rafael Espindola
bb1e2fbc68 fix assembly syntax 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30977 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 17:38:12 +00:00
Rafael Espindola
82c678b83c implement LDRB, LDRSB, LDRH and LDRSH 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30976 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 17:17:22 +00:00
Rafael Espindola
bec2e38a91 implement smull and umull 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30975 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 16:33:29 +00:00
Evan Cheng
d9b8e40ab3 Avoid getting into an infinite loop when -disable-x86-shuffle-opti is specified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30974 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 06:36:00 +00:00
Evan Cheng
07e4b00a1a SelectScalarSSELoad should call CanBeFoldedBy as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30973 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 06:34:55 +00:00
Evan Cheng
13e9e9c235 Passing isel root and use operands to ComplexPattern functions, these should do the usual load folding checks as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30972 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 06:33:44 +00:00
Chris Lattner
59c85e96de regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30971 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 23:27:25 +00:00
Chris Lattner
9e76ce97b8 Produce a useful error message for Regression/Verifier/2006-10-15-AddrLabel.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30970 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 23:26:46 +00:00
Chris Lattner
1d4b6bfd3e testcase that causes the asmparser to assert 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30969 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 23:26:28 +00:00
Chris Lattner
f53104051e label* is not a valid type, add an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30968 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 23:21:12 +00:00
Chris Lattner
02c0e3659f fix a buggy check that accidentally disabled this xform 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30967 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 22:42:15 +00:00
Chris Lattner
32b5d717ce clarify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30966 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 20:05:59 +00:00
Reid Spencer
15fd5f1b81 Document the VAArg, and vector instruction opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30965 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 00:11:05 +00:00
Anton Korobeynikov
54b1cc6d8a Align stack size to DWORD boundary 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30964 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 20:53:35 +00:00
Rafael Espindola
d2b5668208 expand ISD::BRCOND 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30963 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 17:59:54 +00:00
Rafael Espindola
6c5ae3edd3 fix some fp condition codes 
use non trapping comparison instructions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30962 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 13:42:53 +00:00
Jim Laskey
d4edf2cf91 Tidy up after truncstore changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30961 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 12:14:27 +00:00
Evan Cheng
f6774c7ec1 One cyclic dag a day is good for ya... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30960 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:35:02 +00:00
Evan Cheng
d42a5238a9 Debug tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30959 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:34:06 +00:00
Evan Cheng
27e1fe9dab Corrected load folding check. We need to start from the root of the sub-dag 
being matched and ensure there isn't a non-direct path to the load (i.e. a
path that goes out of the sub-dag.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30958 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-14 08:33:25 +00:00