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Commit Graph

4376 Commits

Author SHA1 Message Date
Jim Laskey
7e0f0b2d24 1. Add a pass to fold debug label instructions so a debug info client can detect
empty ranges.

2. Reorg how MachineDebugInfo maintains changes to debug labels.

3. Have dwarf writer use debug label info to simplify scopes and source line
coorespondence.

4. Revert the merging of compile units until I can get the bugs ironed out.

llvm-svn: 31507
2006-11-07 19:33:46 +00:00
Evan Cheng
db0add3bcb Added target hook for post-indexed memory ops transformation.
llvm-svn: 31499
2006-11-07 09:04:16 +00:00
Chris Lattner
b6be2b873f Add a new operand flag to mark which operand is the first predicate operand
of an M_PREDICATED instruction.

llvm-svn: 31482
2006-11-06 23:53:08 +00:00
Chris Lattner
d7138e5f2d add a flag so that predicated instructions can be recognized by branch
folding

llvm-svn: 31479
2006-11-06 21:44:17 +00:00
Reid Spencer
3d33eff52e Fix a small bug noticed on code review.
llvm-svn: 31476
2006-11-06 18:47:14 +00:00
Jeff Cohen
e1003da1a2 Unbreak VC++ build.
llvm-svn: 31464
2006-11-05 19:31:28 +00:00
Reid Spencer
ac23a62ab3 Add a -disable-cbe-printf-a option so that the output of the C Backend
stands a chance of being compiled with a non C99 C compiler. The default
is enabled so you must specifically disable this feature if you want the
CBE output compiled with an older C compiler.

llvm-svn: 31461
2006-11-05 17:08:18 +00:00
Evan Cheng
ae357e5044 Added getIndexedStore.
llvm-svn: 31458
2006-11-05 09:30:09 +00:00
Evan Cheng
a4bfb23119 Move to operand constraints for two-address instructions.
llvm-svn: 31452
2006-11-04 09:42:53 +00:00
Evan Cheng
047a33d3e3 Fix comments.
llvm-svn: 31414
2006-11-03 07:31:32 +00:00
Evan Cheng
466e20fca2 Rename
llvm-svn: 31413
2006-11-03 07:21:16 +00:00
Evan Cheng
9ebbced355 Added a target specific hook to check whether / how a node can be transformed
into a pair of base / offset nodes for pre-indexed load / store ops.

llvm-svn: 31407
2006-11-03 03:04:06 +00:00
Evan Cheng
b19289a84d Add isPredecessor to check whether a node is another's predecessor.
llvm-svn: 31406
2006-11-03 03:02:18 +00:00
Chris Lattner
f6b840a1ae silence warning
llvm-svn: 31402
2006-11-03 01:45:13 +00:00
Jim Laskey
c770e68c11 Allow FoldingSet clients to pump up the initial hash size.
llvm-svn: 31377
2006-11-02 14:21:26 +00:00
Reid Spencer
1abf69e923 For PR950:
Replace the REM instruction with UREM, SREM and FREM.

llvm-svn: 31369
2006-11-02 01:53:59 +00:00
Chris Lattner
4cb79a5f9d generalize this api
llvm-svn: 31365
2006-11-02 01:39:10 +00:00
Evan Cheng
1da5ee8485 Rename
llvm-svn: 31364
2006-11-01 23:18:32 +00:00
Evan Cheng
b1ac9f6c12 Added getTiedToSrcOperand() to check for two-address'ness.
llvm-svn: 31360
2006-11-01 23:00:31 +00:00
Evan Cheng
83b0827a2e Add a printSetLabel that takes two id's.
llvm-svn: 31347
2006-11-01 09:23:08 +00:00
Evan Cheng
c566892bd5 Add operand constraints to TargetInstrInfo.
llvm-svn: 31333
2006-11-01 00:27:05 +00:00
Chris Lattner
d9afd310a6 Change the prototype for TargetLowering::isOperandValidForConstraint
llvm-svn: 31318
2006-10-31 19:40:43 +00:00
Anton Korobeynikov
9867bf5eaf Unbreaking static ctors patch.
Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.

llvm-svn: 31306
2006-10-31 06:11:06 +00:00
Reid Spencer
e01994f8b1 Don't mislead readers by claiming a variable is defaulted to false when
the default is actually true.

llvm-svn: 31300
2006-10-30 22:46:49 +00:00
Reid Spencer
db06ed9156 Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4
generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.

llvm-svn: 31299
2006-10-30 22:32:30 +00:00
Jim Laskey
1ccb7c5d03 Simplify DwarfWriter header.
llvm-svn: 31295
2006-10-30 13:35:07 +00:00
Evan Cheng
7437ed9f30 Added a new SDNode type: BR_JT for jumptable branch.
llvm-svn: 31292
2006-10-30 07:59:36 +00:00
Chris Lattner
5c33fa2a37 add a new form of insert.
llvm-svn: 31290
2006-10-30 05:07:51 +00:00
Chris Lattner
9a99a284dc Add SmallString a (currently) minimal class that adapts SmallVector to be
more string-like.

llvm-svn: 31289
2006-10-30 03:39:20 +00:00
Chris Lattner
593e2361b4 add a method
llvm-svn: 31288
2006-10-30 03:14:15 +00:00
Chris Lattner
08b405916c add newline at end of file
llvm-svn: 31287
2006-10-29 23:47:01 +00:00
Chris Lattner
1db6efc297 add a highly efficient hash table that is specialized for mapping C strings
to some other type.

llvm-svn: 31286
2006-10-29 23:42:03 +00:00
Chris Lattner
6a498a7658 Add a new llvm::Allocator abstraction, which will be used by a container
I'm about to add.  This is similar to, but necessarily different than, the
STL allocator class.

llvm-svn: 31285
2006-10-29 22:08:03 +00:00
Chris Lattner
fbe8021392 add an assertion
llvm-svn: 31272
2006-10-28 18:21:51 +00:00
Chris Lattner
2d12a0cb70 remove dead method
llvm-svn: 31271
2006-10-28 18:21:29 +00:00
Chris Lattner
bcd43c46ab add a method for hacking on JTIdx's
llvm-svn: 31270
2006-10-28 18:18:36 +00:00
Chris Lattner
3c19558b6b const'ify jump table stuff
llvm-svn: 31269
2006-10-28 18:17:09 +00:00
Chris Lattner
fa7bf778e5 add a method for deleting dead jump tables.
llvm-svn: 31268
2006-10-28 18:12:00 +00:00
Chris Lattner
394da08e59 determine whether a change was made
llvm-svn: 31265
2006-10-28 18:00:05 +00:00
Chris Lattner
dcfee77788 add another target hook for branch folding.
llvm-svn: 31262
2006-10-28 17:29:57 +00:00
Chris Lattner
65f872288d add option to isCriticalEdge
llvm-svn: 31258
2006-10-28 06:58:17 +00:00
Chris Lattner
85bc826ca6 Expose a smarter way to break critical edges.
llvm-svn: 31256
2006-10-28 06:44:56 +00:00
Jim Laskey
f5452dfa52 Editorial clean up.
llvm-svn: 31250
2006-10-28 01:34:21 +00:00
Chris Lattner
44b3550217 add a method
llvm-svn: 31249
2006-10-28 01:24:05 +00:00
Jim Laskey
ef56bc9680 Switch over from SelectionNodeCSEMap to FoldingSet.
llvm-svn: 31240
2006-10-27 23:46:08 +00:00
Jim Laskey
e65b6c3c60 Clean up
llvm-svn: 31238
2006-10-27 22:52:02 +00:00
Chris Lattner
05159debc4 Turn conditions like x<Y|z==q into multiple blocks.
This compiles Regression/CodeGen/X86/or-branch.ll into:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $5, %eax
        jl LBB1_1       #cond_true
LBB1_3: #entry
        testl %ecx, %ecx
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

instead of:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $4, %eax
        setg %al
        testl %ecx, %ecx
        setne %cl
        testb %cl, %al
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

And on ppc to:

        cmpwi cr0, r29, 5
        blt cr0, LBB1_1 ;cond_true
LBB1_3: ;entry
        cmplwi cr0, r30, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

instead of:

        cmpwi cr7, r4, 4
        mfcr r2
        addic r4, r3, -1
        subfe r30, r4, r3
        rlwinm r29, r2, 30, 31, 31
        and r2, r29, r30
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

llvm-svn: 31230
2006-10-27 21:36:01 +00:00
Jim Laskey
3d1116e32c Apply editorials.
llvm-svn: 31218
2006-10-27 18:05:12 +00:00
Jim Laskey
69b57830c2 Breakout folding hash set from SelectionDAGCSEMap.
llvm-svn: 31215
2006-10-27 16:16:16 +00:00
Evan Cheng
d2d6b83b83 Indexed load / store changes.
llvm-svn: 31208
2006-10-26 21:52:24 +00:00