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15694 Commits

Author SHA1 Message Date
Reid Spencer
0f30aec7d3 Make CodeGen libs -pedantic clean. 
llvm-svn: 31387
 2006-11-02 23:56:21 +00:00
Rafael Espindola
e2f969dccb #include <assert.h> 
llvm-svn: 31386
 2006-11-02 23:48:53 +00:00
Chris Lattner
d0b2340384 fix a bug reid noticed 
llvm-svn: 31385
 2006-11-02 23:39:53 +00:00
Jim Laskey
599ad8b222 1. Hash not quite right for DIEValues. 
2. Not going to use Usage (no significant benefit.)

llvm-svn: 31384
 2006-11-02 21:48:18 +00:00
Reid Spencer
8f92705113 Remove unused variable. 
llvm-svn: 31382
 2006-11-02 20:55:40 +00:00
Reid Spencer
4bafa71dc1 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Jim Laskey
14437996b7 General clean up of teh dwarf writer. 
1. Most significant is the folding of debug information entries.  This
reduced self hosted -g SelectionDAGISel.s from 120M to 13M and pretty
close to matching .o file sizes with gcc.

2. Debug information entry printing for debugging the dwarf code.

3. Bring all the code closer to llvm standards.

4. Misc. fixes and doc clean ups.

llvm-svn: 31379
 2006-11-02 20:12:39 +00:00
Rafael Espindola
04afe6eb37 move ARMCondCodeToString to ARMAsmPrinter.cpp 
remove unused variables from lowerCall

llvm-svn: 31378
 2006-11-02 15:00:02 +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
c3ef589d23 Remove unused variable. 
llvm-svn: 31376
 2006-11-02 08:23:44 +00:00
Reid Spencer
7af6c17de0 Remove unused variables. 
llvm-svn: 31375
 2006-11-02 08:18:15 +00:00
Reid Spencer
34154e10e7 Remove a function prototype that is no longer needed (REM patch missed it) 
llvm-svn: 31374
 2006-11-02 08:12:02 +00:00
Reid Spencer
cbea78a1bb Get rid of unused variable. 
llvm-svn: 31373
 2006-11-02 07:59:59 +00:00
Andrew Lenharth
c43c2d6966 fix 2006-11-01-vastart.ll 
llvm-svn: 31371
 2006-11-02 03:05:26 +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
38c04a6bd6 Implement the getRegForInlineAsmConstraint method for PPC. With recent 
sdisel changes, this eliminates a ton of copies around common inline asms.
For example:

int test2(int Y, int X) {
  asm("foo %0, %1" : "=r"(X): "r"(X));
  return X;
}

now compiles to:

_test2:
        foo r3, r4
        blr

instead of:

_test2:
        mr r2, r4
        foo r2, r2
        mr r3, r2
        blr

GCC produces:

_test2:
        foo r4, r4
        mr r3,r4
        blr

llvm-svn: 31367
 2006-11-02 01:44:04 +00:00
Chris Lattner
35cd439221 Allow the getRegForInlineAsmConstraint method to return a register class with 
no fixes physreg.  Treat this as permission to use any register in the register
class.  When this happens and it is safe, allow the llvm register allcoator to
allocate the register instead of doing it at isel time.  This eliminates a ton
of copies around common inline asms.  For example:

int test2(int Y, int X) {
  asm("foo %0, %1" : "=r"(X): "r"(X));
  return X;
}

now compiles to:

_test2:
        foo r3, r4
        blr

instead of:

_test2:
        mr r2, r4
        foo r2, r2
        mr r3, r2
        blr

GCC produces:

_test2:
        foo r4, r4
        mr r3,r4
        blr

llvm-svn: 31366
 2006-11-02 01:41:49 +00:00
Evan Cheng
1da5ee8485 Rename 
llvm-svn: 31364
 2006-11-01 23:18:32 +00:00
Evan Cheng
e57c89ede0 Two-address instructions no longer have to be A := A op C. Now any pair of dest / src operands can be tied together. 
llvm-svn: 31363
 2006-11-01 23:06:55 +00:00
Devang Patel
ae6d81559a There can be more than one PHINode at the start of the block. 
llvm-svn: 31362
 2006-11-01 23:04:45 +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
1f18eca4f5 Clean up. 
llvm-svn: 31359
 2006-11-01 22:39:30 +00:00
Devang Patel
3f3161cee2 Handle PHINode with only one incoming value. 
This fixes http://llvm.org/bugs/show_bug.cgi?id=979

llvm-svn: 31358
 2006-11-01 22:26:43 +00:00
Evan Cheng
5479bb9fc4 CopyFromReg starts a live range so its use should not be considered a floater. 
llvm-svn: 31356
 2006-11-01 22:17:06 +00:00
Reid Spencer
198701d5ec Make ScalarEvolution actually use a ZeroExtend expression instead of 
having SCZeroExtendExpr be equivalent to SCTruncate

llvm-svn: 31355
 2006-11-01 21:53:12 +00:00
Chris Lattner
f20968bc33 give branch folding a simple heuristic to decide which block to split so that 
it inserts an uncond branch where it is less likely to cause a problem.  This
fixes some perf issues on ppc.

llvm-svn: 31354
 2006-11-01 19:36:29 +00:00
Chris Lattner
953b8e6f7d Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chomp 
llvm-svn: 31352
 2006-11-01 18:03:33 +00:00
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