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3135 Commits

Author SHA1 Message Date
Chris Lattner
71a7a2d781 Fix the dag combiner bug corresponding to PR1014. 
llvm-svn: 31943
 2006-11-27 21:50:02 +00:00
Chris Lattner
aa8f67c2b5 For better or worse, load from i1 is assumed to be zero extended. Do not 
form a load from i1 from larger loads that may not be zext'd.

llvm-svn: 31933
 2006-11-27 04:40:53 +00:00
Chris Lattner
c0bdf03e26 If a brcond condition is promoted, make sure to zero extend it, even if not 
expanded into BR_CC.

llvm-svn: 31932
 2006-11-27 04:39:56 +00:00
Reid Spencer
992d9788b3 For PR950: 
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931
 2006-11-27 01:05:10 +00:00
Jim Laskey
cd74ba8ae1 Global label not handled correctly. 
llvm-svn: 31883
 2006-11-20 20:29:06 +00:00
Chris Lattner
a2bbd246e0 Fix PR1011 and CodeGen/Generic/2006-11-20-DAGCombineCrash.ll 
llvm-svn: 31878
 2006-11-20 18:05:46 +00:00
Chris Lattner
31f45746ad setOperand should not zap the operand list or add implicit operands to an 
instruction.  Doing so breaks the FP stackifier, the alpha branch selector
the sparc fpmover.

This fixes PR1012 and CodeGen/X86/fp-stack-compare.ll

llvm-svn: 31876
 2006-11-20 17:57:22 +00:00
Reid Spencer
6e34ef887b For PR950: 
First in a series of patches to convert SetCondInst into ICmpInst and
FCmpInst using only two opcodes and having the instructions contain their
predicate value. Nothing uses these classes yet. More patches to follow.

llvm-svn: 31867
 2006-11-20 01:22:35 +00:00
Chris Lattner
4946ae54df Don't transform in another bad case: if the block is empty, it should be 
simplified before we do this xform so that our cost model is accurate.

llvm-svn: 31864
 2006-11-18 22:25:39 +00:00
Chris Lattner
b101c06bce Fix another case we *don't* want to do this xform. 
llvm-svn: 31861
 2006-11-18 21:56:39 +00:00
Chris Lattner
3a34164b82 Implement operator<< for machine basic blocks to make it easier to dump them. 
llvm-svn: 31857
 2006-11-18 21:47:36 +00:00
Chris Lattner
514fc3de5c make the previous change more aggressive, moving any block with no fallthrough. 
This speeds up yacr2 by 7% on a core2.

llvm-svn: 31856
 2006-11-18 21:30:35 +00:00
Chris Lattner
bddc114cfb Minor code layout tweak: if we have something like this: 
if (cond) goto BB2
BB1:
    ...
    return;
BB2:
   ...

Move BB1 to the end of the function so that the code falls through in the
non-return case.  This has the effect of moving assert (and other no-return
call) bodies and return blocks out of loops.

llvm-svn: 31855
 2006-11-18 20:47:54 +00:00
Jim Laskey
a87c9d8905 Fixing the ENABLE_OPTIMIZED=1 DISABLE_ASSERTIONS=1 build. 
llvm-svn: 31822
 2006-11-17 13:07:55 +00:00
Bill Wendling
dbea653b5d More removal of std::cerr and DEBUG, replacing with DOUT instead. 
llvm-svn: 31806
 2006-11-17 02:09:07 +00:00
Bill Wendling
0ae0a45ebe Replace std::cerr uses of the "DEBUG" macro with "DOUT" instead. Removes 
a #include of iostream.

llvm-svn: 31800
 2006-11-17 00:50:36 +00:00
Bill Wendling
49d6a1169f *** empty log message *** 
llvm-svn: 31789
 2006-11-16 20:11:33 +00:00
Evan Cheng
263c558c13 Match MachineCodeEmitter changes. 
llvm-svn: 31787
 2006-11-16 20:04:04 +00:00
Bill Wendling
bcd11344e9 Don't recompute getNumOperands for each iteration. 
llvm-svn: 31783
 2006-11-16 07:35:18 +00:00
Bill Wendling
985d7e09ec Added a new method "CreateNewLiveInterval" which, given a list of 
LiveRanges, creates a new LiveInterval from them. The LiveRanges should
have existed already in another LiveInterval, but removed.

llvm-svn: 31780
 2006-11-16 02:41:50 +00:00
Chris Lattner
0d40275b0e enable the branch folding pass for the JIT. 
llvm-svn: 31777
 2006-11-16 01:00:07 +00:00
Evan Cheng
43ba439abd Fix an incorrectly inverted condition. 
llvm-svn: 31773
 2006-11-16 00:08:20 +00:00
Evan Cheng
3ba3e10448 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng
cf45b9fa95 Minor updates. 
llvm-svn: 31761
 2006-11-15 20:54:29 +00:00
Evan Cheng
7b19d271c4 A register def can be partially dead when the whole register has use(s) but a subreg does not. 
llvm-svn: 31760
 2006-11-15 20:54:11 +00:00
Evan Cheng
d79427b22c Do away with kill / dead maps. Move kill / dead info onto MI's. 
llvm-svn: 31759
 2006-11-15 20:51:59 +00:00
Chris Lattner
ccbbe940eb Simplify IntrinsicLowering and clarify that it is only for use by the 
CBE and interpreter.

llvm-svn: 31755
 2006-11-15 18:00:10 +00:00
Chris Lattner
286bb6e482 remove dead #include 
llvm-svn: 31753
 2006-11-15 17:51:15 +00:00
Evan Cheng
0e82270ff2 Matches MachineInstr changes. 
llvm-svn: 31712
 2006-11-13 23:36:35 +00:00
Evan Cheng
7cabf9d02c - Let MachineInstr ctors add implicit def and use operands. Other operands 
will be inserted before these operands. If the opcode changes (by
  setOpcode), the implicit operands are updated as well.
- Added IsKill, IsDead fields to MachineOperand in preparation for changes
  that move kill / dead info to MachineInstr's.

llvm-svn: 31711
 2006-11-13 23:34:06 +00:00
Reid Spencer
60a8a2e025 Make an assert comment match the tested assertion. 
llvm-svn: 31686
 2006-11-11 20:07:59 +00:00
Evan Cheng
7dab9abfb8 Add methods to add implicit def use operands to a MI. 
llvm-svn: 31675
 2006-11-11 10:20:02 +00:00
Chris Lattner
edfc824673 disallow preinc of a frameindex. This is not profitable and causes 2-addr 
pass to explode.  This fixes a bunch of llc-beta failures on ppc last night.

llvm-svn: 31661
 2006-11-11 01:00:15 +00:00
Chris Lattner
bf0c3e3a02 reduce indentation by using early exits. No functionality change. 
llvm-svn: 31660
 2006-11-11 00:56:29 +00:00
Chris Lattner
671ea7a93b move big chunks of code out-of-line, no functionality change. 
llvm-svn: 31658
 2006-11-11 00:39:41 +00:00
Chris Lattner
1f61c6c84d Fix a dag combiner bug exposed by my recent instcombine patch. This fixes 
CodeGen/Generic/2006-11-10-DAGCombineMiscompile.ll and PPC gsm/toast

llvm-svn: 31644
 2006-11-10 21:37:15 +00:00
Evan Cheng
013597778d Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Evan Cheng
78ba99caa5 When forming a pre-indexed store, make sure ptr isn't the same or is a pred of value being stored. It would cause a cycle. 
llvm-svn: 31631
 2006-11-10 08:28:11 +00:00
Chris Lattner
efb62464b9 commentate 
llvm-svn: 31627
 2006-11-10 04:41:34 +00:00
Evan Cheng
17dd6dd46c Don't attempt expensive pre-/post- indexed dag combine if target does not support them. 
llvm-svn: 31598
 2006-11-09 19:10:46 +00:00
Evan Cheng
c050bb298f Add a mechanism to specify whether a target supports a particular indexed load / store. 
llvm-svn: 31597
 2006-11-09 18:56:43 +00:00
Evan Cheng
22bb3ba200 Rename ISD::MemOpAddrMode to ISD::MemIndexedMode 
llvm-svn: 31596
 2006-11-09 18:44:21 +00:00
Evan Cheng
89ee587963 Rename ISD::MemOpAddrMode to ISD::MemIndexedMode 
llvm-svn: 31595
 2006-11-09 17:55:04 +00:00
Jim Laskey
8a5a95d868 Allows debugging llc self hosted. 
llvm-svn: 31594
 2006-11-09 16:32:26 +00:00
Jim Laskey
19fb42c34d Merging dwarf info to a single compile unit. 
llvm-svn: 31593
 2006-11-09 14:52:14 +00:00
Evan Cheng
6b7d127df9 getPostIndexedAddressParts change: passes in load/store instead of its loaded / stored VT. 
llvm-svn: 31584
 2006-11-09 04:29:46 +00:00
Evan Cheng
8743c67826 Remove M_2_ADDR_FLAG. 
llvm-svn: 31583
 2006-11-09 02:22:54 +00:00
Evan Cheng
fcef896f6e Match more post-indexed ops. 
llvm-svn: 31569
 2006-11-08 20:27:27 +00:00
Jim Laskey
28fec74f1b Remove redundant <cmath>. 
llvm-svn: 31561
 2006-11-08 19:16:44 +00:00
Jim Laskey
4d636f03f7 Now can re-enable debug label folding. 
llvm-svn: 31549
 2006-11-08 14:17:45 +00:00