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27377 Commits

Author SHA1 Message Date
Reid Spencer 5162c6a67d Remove unused variable. 
llvm-svn: 31376
 2006-11-02 08:23:44 +00:00
Reid Spencer 3054b14059 Remove unused variables. 
llvm-svn: 31375
 2006-11-02 08:18:15 +00:00
Reid Spencer b20b6857f3 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 7f311c2f4b Get rid of unused variable. 
llvm-svn: 31373
 2006-11-02 07:59:59 +00:00
Reid Spencer 68e1b240b4 Add some documentation about the arguments. 
llvm-svn: 31372
 2006-11-02 03:37:39 +00:00
Andrew Lenharth d8b59f67f6 fix 2006-11-01-vastart.ll 
llvm-svn: 31371
 2006-11-02 03:05:26 +00:00
Andrew Lenharth 96e251ca23 a regression :( 
llvm-svn: 31370
 2006-11-02 03:04:37 +00:00
Reid Spencer 7eb55b395f For PR950: 
Replace the REM instruction with UREM, SREM and FREM.

llvm-svn: 31369
 2006-11-02 01:53:59 +00:00
Chris Lattner 57382066e8 new testcase 
llvm-svn: 31368
 2006-11-02 01:45:28 +00:00
Chris Lattner 584a11ae22 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 55402d4403 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
Chris Lattner 454b5c9bce generalize this api 
llvm-svn: 31365
 2006-11-02 01:39:10 +00:00
Evan Cheng 93cdd149f7 Rename 
llvm-svn: 31364
 2006-11-01 23:18:32 +00:00
Evan Cheng d8697deca3 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 2cb4f83b38 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 3557a39494 Tied-to constraint must be op_with_larger_idx = op_with_smaller_idx or else throw an exception. 
llvm-svn: 31361
 2006-11-01 23:03:11 +00:00
Evan Cheng 1b2e60e970 Added getTiedToSrcOperand() to check for two-address'ness. 
llvm-svn: 31360
 2006-11-01 23:00:31 +00:00
Evan Cheng 1359196c4e Clean up. 
llvm-svn: 31359
 2006-11-01 22:39:30 +00:00
Devang Patel 44519a8feb 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
Devang Patel 9db6b328cd Testcase from http://llvm.org/bugs/show_bug.cgi?id=979 
llvm-svn: 31357
 2006-11-01 22:25:48 +00:00
Evan Cheng 47218fab42 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 20ffdbe7c1 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 7cee6ddcd8 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 487fda068a extra pass is required now 
llvm-svn: 31353
 2006-11-01 18:30:25 +00:00
Chris Lattner 5a0bd61c64 Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chomp 
llvm-svn: 31352
 2006-11-01 18:03:33 +00:00
Chris Lattner 6b8fa7f6fd new testcase that crashes global opt, reduced from chomp 
llvm-svn: 31351
 2006-11-01 18:02:53 +00:00
Reid Spencer 09c440c00a Partial update for Release 1.9 
llvm-svn: 31350
 2006-11-01 16:15:04 +00:00
Rafael Espindola 3576405a26 print null values in bss 
llvm-svn: 31349
 2006-11-01 14:26:44 +00:00
Rafael Espindola 0cd8d14c7c implement zextload bool and truncstore bool 
llvm-svn: 31348
 2006-11-01 14:13:27 +00:00
Evan Cheng 91f120f4fa Add a printSetLabel that takes two id's. 
llvm-svn: 31347
 2006-11-01 09:23:08 +00:00
Chris Lattner eebea43b48 Factor gep instructions through phi nodes. 
llvm-svn: 31346
 2006-11-01 07:43:41 +00:00
Chris Lattner 268ae93f46 remove a testcase for a marginal feature 
llvm-svn: 31345
 2006-11-01 07:15:44 +00:00
Chris Lattner 14f82c7dcd 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 94e5bc9e83 Fix ldmxcsr JIT encoding. 
llvm-svn: 31343
 2006-11-01 06:53:52 +00:00
Chris Lattner dc826fc068 Fix a bug in the previous patch 
llvm-svn: 31342
 2006-11-01 04:55:47 +00:00
Chris Lattner cadac0c5c3 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 415f365e5c Print jumptable index. 
llvm-svn: 31340
 2006-11-01 04:48:30 +00:00
Reid Spencer 5e2e0cb9aa Remove unnecessary sign conversions made possible by last patch. 
llvm-svn: 31339
 2006-11-01 03:45:43 +00:00
Reid Spencer f84930746e 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 f505a5a063 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 3ac71b31f0 enable branch folding with an option 
llvm-svn: 31335
 2006-11-01 00:38:31 +00:00
Evan Cheng 23654935f4 Not meant to be checked in. 
llvm-svn: 31334
 2006-11-01 00:27:59 +00:00
Evan Cheng ac79c7c4c0 Add operand constraints to TargetInstrInfo. 
llvm-svn: 31333
 2006-11-01 00:27:05 +00:00
Evan Cheng 7a6a5b9af5 Add constraints to Instruction class. 
llvm-svn: 31332
 2006-11-01 00:26:27 +00:00
Andrew Lenharth dfbf91e59d more shotenning 
llvm-svn: 31331
 2006-10-31 23:46:56 +00:00
Chris Lattner fe43befeda 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 fdb64518d6 This test should compile down to one comparison, not two. 
llvm-svn: 31329
 2006-10-31 23:05:16 +00:00
Chris Lattner 427301fdae look through isunordered to inline it into branch blocks. 
llvm-svn: 31328
 2006-10-31 22:37:42 +00:00
Evan Cheng a41c2d6432 Nuke dead code. 
llvm-svn: 31327
 2006-10-31 21:53:31 +00:00
Chris Lattner 44daa50bed 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