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Author SHA1 Message Date
Reid Spencer
0a783f783c For PR950: 
Replace the REM instruction with UREM, SREM and FREM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 01:53:59 +00:00
Chris Lattner
0ac6757586 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31368 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 01:45:28 +00:00
Chris Lattner
331d1bc5df 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31367 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 01:44:04 +00:00
Chris Lattner
2a821601f1 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31366 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 01:41:49 +00:00
Chris Lattner
a74b4a3ddc generalize this api 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31365 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 01:39:10 +00:00
Evan Cheng
e6ae14e1f4 Rename 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31364 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:18:32 +00:00
Evan Cheng
360c2dd25a Two-address instructions no longer have to be A := A op C. Now any pair of dest / src operands can be tied together. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31363 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:06:55 +00:00
Devang Patel
e0805a2d36 There can be more than one PHINode at the start of the block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31362 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:04:45 +00:00
Evan Cheng
4c2b7a3808 Tied-to constraint must be op_with_larger_idx = op_with_smaller_idx or else throw an exception. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31361 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:03:11 +00:00
Evan Cheng
981b5bd708 Added getTiedToSrcOperand() to check for two-address'ness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31360 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:00:31 +00:00
Evan Cheng
1dabb68ab4 Clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31359 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 22:39:30 +00:00
Devang Patel
2c0565f8e0 Handle PHINode with only one incoming value. 
This fixes http://llvm.org/bugs/show_bug.cgi?id=979


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31358 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 22:26:43 +00:00
Devang Patel
dba4aeaef1 Testcase from http://llvm.org/bugs/show_bug.cgi?id=979 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31357 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 22:25:48 +00:00
Evan Cheng
93467e7fe3 CopyFromReg starts a live range so its use should not be considered a floater. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31356 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 22:17:06 +00:00
Reid Spencer
48d8a70d22 Make ScalarEvolution actually use a ZeroExtend expression instead of 
having SCZeroExtendExpr be equivalent to SCTruncate


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31355 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 21:53:12 +00:00
Chris Lattner
d4bf3c2fd6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31354 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 19:36:29 +00:00
Chris Lattner
f4208026aa extra pass is required now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31353 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 18:30:25 +00:00
Chris Lattner
25de4e5c21 Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chomp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31352 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 18:03:33 +00:00
Chris Lattner
22c8648b8a new testcase that crashes global opt, reduced from chomp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31351 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 18:02:53 +00:00
Reid Spencer
bb9fd30e6b Partial update for Release 1.9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31350 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 16:15:04 +00:00
Rafael Espindola
560a8d0512 print null values in bss 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31349 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 14:26:44 +00:00
Rafael Espindola
9dca7ad78f implement zextload bool and truncstore bool 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31348 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 14:13:27 +00:00
Evan Cheng
41349c10cb Add a printSetLabel that takes two id's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31347 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 09:23:08 +00:00
Chris Lattner
9c08050ac7 Factor gep instructions through phi nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31346 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 07:43:41 +00:00
Chris Lattner
2c884fdaa3 remove a testcase for a marginal feature 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31345 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 07:15:44 +00:00
Chris Lattner
76c7314650 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31344 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 07:13:54 +00:00
Evan Cheng
acf7f2e3a9 Fix ldmxcsr JIT encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31343 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 06:53:52 +00:00
Chris Lattner
a90a24c623 Fix a bug in the previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31342 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 04:55:47 +00:00
Chris Lattner
7da52b295b Fold things like "phi [add (a,b), add(c,d)]" into two phi's and one add. 
This triggers thousands of times on multisource.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31341 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 04:51:18 +00:00
Evan Cheng
6cc31ae4da Print jumptable index. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31340 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 04:48:30 +00:00
Reid Spencer
fa8a51e041 Remove unnecessary sign conversions made possible by last patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31339 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 03:45:43 +00:00
Reid Spencer
fe85526713 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31338 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 03:41:05 +00:00
Chris Lattner
1d08d83230 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31336 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 01:16:12 +00:00
Chris Lattner
d8ccff0c3e enable branch folding with an option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31335 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 00:38:31 +00:00
Evan Cheng
0db427bb2d Not meant to be checked in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31334 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 00:27:59 +00:00
Evan Cheng
e2ba897588 Add operand constraints to TargetInstrInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31333 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 00:27:05 +00:00
Evan Cheng
2f15c063ba Add constraints to Instruction class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31332 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 00:26:27 +00:00
Andrew Lenharth
6bbf6b0b65 more shotenning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31331 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 23:46:56 +00:00
Chris Lattner
0ccb500fa7 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31330 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 23:06:00 +00:00
Chris Lattner
04ffebc798 This test should compile down to one comparison, not two. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31329 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 23:05:16 +00:00
Chris Lattner
df19f27d03 look through isunordered to inline it into branch blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31328 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 22:37:42 +00:00
Evan Cheng
63af319c4b Nuke dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31327 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 21:53:31 +00:00
Chris Lattner
22aaf1d61c allow the address of a global to be used with the "i" constraint when in 
-static mode.  This implements PR882.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31326 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 20:13:11 +00:00
Chris Lattner
0d92499455 implement the 'c' inline asm modifier character 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31325 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 20:12:30 +00:00
Chris Lattner
edc28277cc new testcase for PR882 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31324 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 20:11:14 +00:00
Chris Lattner
efa46ce87b handle global address constant sdnodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31323 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 20:01:56 +00:00
Andrew Lenharth
956a431930 Let us play simplify the td file (and fix a few missed sub and mul patterns). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31322 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 19:52:12 +00:00
Andrew Lenharth
a54f6b16f9 make one giant add and sub tester 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31321 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 19:50:55 +00:00
Chris Lattner
1a60aa7bc1 handle "st" as "st(0)" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31320 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 19:42:44 +00:00
Chris Lattner
53069fbbae TargetLowering::isOperandValidForConstraint 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31319 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 19:41:18 +00:00