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15667 Commits

Author SHA1 Message Date
Rafael Espindola
3ae2b33d17 print null values in bss 
llvm-svn: 31349
 2006-11-01 14:26:44 +00:00
Rafael Espindola
a52f709418 implement zextload bool and truncstore bool 
llvm-svn: 31348
 2006-11-01 14:13:27 +00:00
Evan Cheng
83b0827a2e Add a printSetLabel that takes two id's. 
llvm-svn: 31347
 2006-11-01 09:23:08 +00:00
Chris Lattner
2cedfa5156 Factor gep instructions through phi nodes. 
llvm-svn: 31346
 2006-11-01 07:43:41 +00:00
Chris Lattner
61ea2af8fe Turn a phi of many loads into a phi of the address and a single load of the 
result.  This can significantly shrink code and exposes identities more
aggressively.

llvm-svn: 31344
 2006-11-01 07:13:54 +00:00
Evan Cheng
790d5c7697 Fix ldmxcsr JIT encoding. 
llvm-svn: 31343
 2006-11-01 06:53:52 +00:00
Chris Lattner
e43c3b1681 Fix a bug in the previous patch 
llvm-svn: 31342
 2006-11-01 04:55:47 +00:00
Chris Lattner
7211110992 Fold things like "phi [add (a,b), add(c,d)]" into two phi's and one add. 
This triggers thousands of times on multisource.

llvm-svn: 31341
 2006-11-01 04:51:18 +00:00
Evan Cheng
67c04b1f2a Print jumptable index. 
llvm-svn: 31340
 2006-11-01 04:48:30 +00:00
Reid Spencer
a47902dc6f Remove unnecessary sign conversions made possible by last patch. 
llvm-svn: 31339
 2006-11-01 03:45:43 +00:00
Reid Spencer
ea7b487e03 Fix a bug in the interpreter where divides of unmatched signed operands 
would fail. E.g. udiv sint X, Y  or sdiv uint X, Y would fail to find a
type match in the switch statement and fail the operation.

llvm-svn: 31338
 2006-11-01 03:41:05 +00:00
Chris Lattner
b459c08384 make tail merging more aggressive. If two blocks share a common tail, but the 
tail is not an entire block for either of them, pick one, split it, then
merge the common part.

llvm-svn: 31336
 2006-11-01 01:16:12 +00:00
Chris Lattner
5651528580 enable branch folding with an option 
llvm-svn: 31335
 2006-11-01 00:38:31 +00:00
Evan Cheng
f49cb35d90 Add constraints to Instruction class. 
llvm-svn: 31332
 2006-11-01 00:26:27 +00:00
Andrew Lenharth
92b6c807c7 more shotenning 
llvm-svn: 31331
 2006-10-31 23:46:56 +00:00
Chris Lattner
850ef9955d Compile CodeGen/PowerPC/fp-branch.ll to: 
_intcoord_cond_next55:
LBB1_3: ;cond_next55
        lis r2, ha16(LCPI1_0)
        lfs f0, lo16(LCPI1_0)(r2)
        fcmpu cr0, f1, f0
        blt cr0, LBB1_2 ;cond_next62.exitStub
LBB1_1: ;bb72.exitStub
        li r3, 1
        blr
LBB1_2: ;cond_next62.exitStub
        li r3, 0
        blr

instead of:

_intcoord_cond_next55:
LBB1_3: ;cond_next55
        lis r2, ha16(LCPI1_0)
        lfs f0, lo16(LCPI1_0)(r2)
        fcmpu cr0, f1, f0
        bge cr0, LBB1_1 ;bb72.exitStub
LBB1_4: ;cond_next55
        lis r2, ha16(LCPI1_0)
        lfs f0, lo16(LCPI1_0)(r2)
        fcmpu cr0, f1, f0
        bnu cr0, LBB1_2 ;cond_next62.exitStub
LBB1_1: ;bb72.exitStub
        li r3, 1
        blr
LBB1_2: ;cond_next62.exitStub
        li r3, 0
        blr

llvm-svn: 31330
 2006-10-31 23:06:00 +00:00
Chris Lattner
3131b7d6d1 look through isunordered to inline it into branch blocks. 
llvm-svn: 31328
 2006-10-31 22:37:42 +00:00
Evan Cheng
cabfd99a79 Nuke dead code. 
llvm-svn: 31327
 2006-10-31 21:53:31 +00:00
Chris Lattner
def30d3eda allow the address of a global to be used with the "i" constraint when in 
-static mode.  This implements PR882.

llvm-svn: 31326
 2006-10-31 20:13:11 +00:00
Chris Lattner
0571c323bf implement the 'c' inline asm modifier character 
llvm-svn: 31325
 2006-10-31 20:12:30 +00:00
Chris Lattner
3bc1ad2c4a handle global address constant sdnodes 
llvm-svn: 31323
 2006-10-31 20:01:56 +00:00
Andrew Lenharth
cc672e3b2b Let us play simplify the td file (and fix a few missed sub and mul patterns). 
llvm-svn: 31322
 2006-10-31 19:52:12 +00:00
Chris Lattner
3bed109ed9 handle "st" as "st(0)" 
llvm-svn: 31320
 2006-10-31 19:42:44 +00:00
Chris Lattner
a44a27dc47 TargetLowering::isOperandValidForConstraint 
llvm-svn: 31319
 2006-10-31 19:41:18 +00:00
Chris Lattner
d9afd310a6 Change the prototype for TargetLowering::isOperandValidForConstraint 
llvm-svn: 31318
 2006-10-31 19:40:43 +00:00
Chris Lattner
3b7a9fa472 generalize the fix for PR977 to also fix 
Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll

llvm-svn: 31317
 2006-10-31 18:56:48 +00:00
Chris Lattner
79daf6ae80 Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.ll 
llvm-svn: 31315
 2006-10-31 17:52:18 +00:00
Andrew Lenharth
c4f8836525 Add all that branch mangling niftiness 
llvm-svn: 31313
 2006-10-31 16:49:55 +00:00
Rafael Espindola
ba8771a3db add support for calling functions when the caller has variable sized objects 
llvm-svn: 31312
 2006-10-31 13:03:26 +00:00
Anton Korobeynikov
e6ba8a819c 1. Clean up code due to changes in SwitchTo*Section(2) 
2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311
 2006-10-31 08:31:24 +00:00
Chris Lattner
a9f10b25cc Turn an assert into an error message. This is commonly triggered when 
we don't support a specific constraint yet.  When this happens, print the
unsupported constraint.

llvm-svn: 31310
 2006-10-31 07:33:13 +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
Evan Cheng
3da8d26445 Fix a typo which can break jumptables. 
llvm-svn: 31305
 2006-10-31 02:31:00 +00:00
Reid Spencer
0b5a938e79 Make this compile again. 
llvm-svn: 31304
 2006-10-31 01:45:56 +00:00
Evan Cheng
a8168f310e Apply Aton's LLVM patch for PR973: Linux ctors / dtors support. 
llvm-svn: 31303
 2006-10-31 01:26:55 +00:00
Reid Spencer
fe7c10d900 Fix a problem introduced by a last-minute change (logic negation). 
llvm-svn: 31302
 2006-10-30 23:34:32 +00:00
Chris Lattner
ed0b1b4b24 fix miscompilation of llvm.isunordered, where we branched on the opposite 
condition.  This fixes miscompilation of Olden/bh and many others.

llvm-svn: 31301
 2006-10-30 23:02:25 +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
Chris Lattner
ac9ed02670 fix wonky indentation 
llvm-svn: 31298
 2006-10-30 22:27:23 +00:00
Devang Patel
2015279c13 Update comment. Valid option is -debug-pass=Structures. 
llvm-svn: 31297
 2006-10-30 19:25:54 +00:00
Jim Laskey
df32faedf7 Switch abbreviations to use the folding set.a. 
llvm-svn: 31296
 2006-10-30 15:59:54 +00:00
Jim Laskey
1ccb7c5d03 Simplify DwarfWriter header. 
llvm-svn: 31295
 2006-10-30 13:35:07 +00:00
Evan Cheng
5766dd6455 All targets expand BR_JT for now. 
llvm-svn: 31294
 2006-10-30 08:02:39 +00:00
Evan Cheng
972f469722 Lower jumptable to BR_JT. The legalizer can lower it to a BRIND or let the target custom lower it. 
llvm-svn: 31293
 2006-10-30 08:00:44 +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
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
cc8731fef4 Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT. 
llvm-svn: 31284
 2006-10-29 21:21:20 +00:00
Chris Lattner
e1b2b2127b Make CanFallThrough more intelligent (so it can handle blocks with (e.g.) no 
successors), and make island block movement more general.

This compiles CodeGen/X86/2006-04-27-ISelFoldingBug.ll to:

_loadAndRLEsource_no_exit_2E_1_label_2E_0:
        subl $8, %esp
        movl %esi, 4(%esp)
        movl %ebx, (%esp)
        movl 16(%esp), %eax
        movl 12(%esp), %ecx
LBB1_3: #label.0
        movl _last, %edx
        movl %edx, %esi
        incl %esi
        movl %esi, _last
        movl %ecx, %ebx
        # TRUNCATE movb %bl, %bl
        movl _block, %esi
        movb %bl, 1(%esi,%edx)
        cmpl %eax, _last
        jge LBB1_2      #codeRepl5.exitStub
LBB1_4: #label.0
        cmpl $257, %ecx
        je LBB1_2       #codeRepl5.exitStub
LBB1_1: #label.0.no_exit.1_crit_edge.exitStub
        movl $1, %eax
        movl (%esp), %ebx
        movl 4(%esp), %esi
        addl $8, %esp
        ret
LBB1_2: #codeRepl5.exitStub
        xorl %eax, %eax
        movl (%esp), %ebx
        movl 4(%esp), %esi
        addl $8, %esp
        ret

instead of:

_loadAndRLEsource_no_exit_2E_1_label_2E_0:
        subl $8, %esp
        movl %esi, 4(%esp)
        movl %ebx, (%esp)
        movl 16(%esp), %eax
        movl 12(%esp), %ecx
        jmp LBB1_3      #label.0
LBB1_1: #label.0.no_exit.1_crit_edge.exitStub
        movl $1, %eax
        movl (%esp), %ebx
        movl 4(%esp), %esi
        addl $8, %esp
        ret
LBB1_2: #codeRepl5.exitStub
        xorl %eax, %eax
        movl (%esp), %ebx
        movl 4(%esp), %esi
        addl $8, %esp
        ret
LBB1_3: #label.0
        movl _last, %edx
        movl %edx, %esi
        incl %esi
        movl %esi, _last
        movl %ecx, %ebx
        # TRUNCATE movb %bl, %bl
        movl _block, %esi
        movb %bl, 1(%esi,%edx)
        cmpl %eax, _last
        jge LBB1_2      #codeRepl5.exitStub
LBB1_4: #label.0
        cmpl $257, %ecx
        jne LBB1_1      #label.0.no_exit.1_crit_edge.exitStub
        jmp LBB1_2      #codeRepl5.exitStub

... which is much better layout :)

llvm-svn: 31282
 2006-10-29 21:05:41 +00:00
Chris Lattner
46a439780e fix Generic/2006-10-29-Crash.ll 
llvm-svn: 31281
 2006-10-29 21:01:20 +00:00