Chris Lattner
863914feb5
trim down the target info structs now that we have a preferred spill register class for each callee save register
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Why is V9 maintaining these tables manually? ugh!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23561 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 17:38:36 +00:00
Chris Lattner
8fb040e584
now that we have a reg class to spill with, get this info from the regclass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23559 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 17:19:22 +00:00
Chris Lattner
5802be13e0
constant fold these calls
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23558 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 17:16:59 +00:00
Chris Lattner
56bcae0de9
simplify this code using the new regclass info passed in
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23557 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 17:12:38 +00:00
Chris Lattner
80a4f169b4
Now that we have getCalleeSaveRegClasses() info, use it to pass the register
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class into the spill/reload methods. Targets can now rely on that argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23556 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 16:59:07 +00:00
Chris Lattner
e4047188e7
stub out a virtual method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23554 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 06:55:18 +00:00
Chris Lattner
d174fe0ec3
CR registers are not used by this "target"
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23552 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 06:43:58 +00:00
Chris Lattner
0a37960d32
these registers don't belong to any register classes, so don't mark them
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as callee save. They can never be generated by the compiler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23551 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 06:42:24 +00:00
Chris Lattner
ef242b1ccc
Now that self referential classes are supported, get rid of a work-around.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23544 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 04:13:23 +00:00
Chris Lattner
b48d2cf5eb
pass extra args
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23539 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 01:31:52 +00:00
Chris Lattner
0ffb1a56ff
these methods get extra args
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23538 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 01:30:55 +00:00
Chris Lattner
97d5e6461a
Pass extra regclasses into spilling code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23537 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 01:29:42 +00:00
Chris Lattner
bf9716b9c4
Change this code ot pass register classes into the stack slot spiller/reloader
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code. PrologEpilogInserter hasn't been updated yet though, so targets cannot
use this info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23536 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 01:29:00 +00:00
Chris Lattner
ff201eebea
Use the 32-bit version for now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23534 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-30 00:05:05 +00:00
Chris Lattner
67ab118a6d
Add a bunch of patterns for F64 FP ops, add some more integer ops
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23533 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 23:34:24 +00:00
Chris Lattner
237733e933
Remove code for patterns that are autogenerated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23532 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 23:33:31 +00:00
Andrew Lenharth
120ab480ab
begining alpha subtarget support
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23531 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 22:54:56 +00:00
Chris Lattner
c7a37a52cd
tblgen autogens this pattern now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23530 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 22:37:24 +00:00
Andrew Lenharth
68fd4866de
copy and paste error
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23528 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 21:11:57 +00:00
Chris Lattner
221e53caea
now that tblgen is smarter, this pattern is not needed. Also, tblgen
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now inverts commuted versions of ANDC/ORC with the current .td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23527 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 19:29:15 +00:00
Chris Lattner
93e50ce04c
Insert stores after phi nodes in the normal dest. This fixes
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LowerInvoke/2005-08-03-InvokeWithPHI.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23525 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 17:44:20 +00:00
Chris Lattner
52897f827e
consistency with other cases, no functionality change
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23524 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 17:38:52 +00:00
Chris Lattner
f13befb456
Make the JIT default to the DAG isel instead of the pattern isel, like LLC.
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The Pattern isel has some strange memory corruption issues going on. :(
This should have been converted over anyway, but it got forgotten somehow
when switching to the dag isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23523 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 17:31:03 +00:00
Chris Lattner
473a99073c
Fix two bugs in my patch earlier today that broke int->fp conversion on X86.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23522 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 06:44:39 +00:00
Chris Lattner
a48bc53cad
Fold isascii into a simple comparison. This speeds up 197.parser by 7.4%,
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bringing the LLC time down to the CBE time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23521 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 06:17:27 +00:00
Chris Lattner
e9b6242780
remove a bunch of unneeded stuff, or self evident comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23519 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 06:16:11 +00:00
Chris Lattner
c330069e20
Implement a couple of memcmp folds from the todo list
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23517 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 04:54:20 +00:00
Jeff Cohen
fef80f43e0
Silence VC++ redeclaration warnings.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23516 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 01:59:49 +00:00
Chris Lattner
d3d2cf52bb
Never rely on ReplaceAllUsesWith when selecting, use CodeGenMap instead.
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ReplaceAllUsesWith does not replace scalars SDOperand floating around on
the stack, permitting things to be selected multiple times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23515 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 00:59:32 +00:00
Chris Lattner
79d0e9f3d1
Codegen ADD X, IMM -> addis/addi if needed.
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This implements PowerPC/fold-li.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23514 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 23:07:13 +00:00
Chris Lattner
d8ead9e250
Autogen MUL, move FP cases together
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23512 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:53:16 +00:00
Chris Lattner
88add100b3
disentangle FP from INT versions of div/mul
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23511 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:50:24 +00:00
Chris Lattner
4a7de219b4
Use the autogenerated matcher for ADD/SUB
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23510 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:47:28 +00:00
Chris Lattner
e025574370
add a patter for SUBFIC
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23509 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:47:06 +00:00
Chris Lattner
0648ccf1e9
Mark int binops as int-only, add FP binops. Mark FADD/FMUL as commutative but
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not associative. Add [SU]REM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23508 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:38:27 +00:00
Chris Lattner
bed21de39b
wrap a long line
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23507 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:30:58 +00:00
Chris Lattner
615c2d0920
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23506 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:29:58 +00:00
Chris Lattner
3e2bafd640
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
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Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23505 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:29:17 +00:00
Chris Lattner
01b3d73c20
Add FP versions of the binary operators, keeping the int and fp worlds seperate.
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Though I have done extensive testing, it is possible that this will break
things in configs I can't test. Please let me know if this causes a problem
and I'll fix it ASAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23504 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 22:28:18 +00:00
Chris Lattner
a5cac6f6eb
Mark associative nodes as associative
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23503 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 20:58:39 +00:00
Chris Lattner
645992f595
Nate pointed out that mulh[us] are commutative as well. Thanks!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23500 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 19:01:44 +00:00
Chris Lattner
6bcf1b7eed
expose commutativity information
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23498 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 18:27:58 +00:00
Chris Lattner
393e138f60
All (xor *) cases are autogenerated now
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23497 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 18:12:37 +00:00
Chris Lattner
cfc828a3d0
add support for missed eqv tests
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23496 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 18:10:51 +00:00
Chris Lattner
1bd8b7b06e
Implement PowerPC/eqv-andc-orc-nor.ll:EQV3
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23494 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 18:04:52 +00:00
Chris Lattner
91da8623be
learn to codegen not as NOR instead of xoris/xori
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23490 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 17:13:15 +00:00
Chris Lattner
d135fa4fd6
These nodes are all autogenerated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23489 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 17:07:09 +00:00
Chris Lattner
32643d8e05
Constant fold llvm.sqrt
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23487 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 01:34:32 +00:00
Chris Lattner
5b3c70263b
add a note about a way to improve this code further, that I won't be getting
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to right now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23485 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 22:44:59 +00:00
Chris Lattner
9a5582f251
Fix a regression in my previous patch, fixing GlobalOpt/2005-09-27-Crash.ll
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and PR632.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23484 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 22:28:11 +00:00
Chris Lattner
d145a61f8f
Darwin, like many BSD systems, has a setjmp/longjmp which saves the signal mask
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on setjmp calls and restores it on longjmp calls (both of which require syscalls).
This makes the calls REALLY slow. Use _setjmp/_longjmp instead. This speeds up
hexxagon from 120.31s to 15.68s: from 5.53x slower than GCC to 28% faster than GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23482 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 22:18:25 +00:00
Chris Lattner
6c38b33613
If the target prefers it, use _setjmp/_longjmp should be used instead of setjmp/longjmp for llvm.setjmp/llvm.longjmp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23481 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 22:15:53 +00:00
Chris Lattner
8e6be8b921
initialize new flag
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23480 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 22:13:56 +00:00
Chris Lattner
4531371960
Avoid spilling stack slots... to stack slots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23478 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 21:33:12 +00:00
Chris Lattner
f4e6c3a69b
Completely rewrite 'correct' eh support. This changes how setjmp insertion
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is performed so it is only at most once per function that contains an invoke
instead of once per invoke in the function. This patch has the following perks:
1. It fixes PR631, which complains about slowness.
2. If fixes PR240, which complains about non-volatile vars being live across
setjmp/longjmps.
3. It improves (but does not fix) the jmpbuf alignment issue on itanium by not
forcing the jmpbufs to always be 8-bytes off the alignment of the structure.
4. It speeds up 253.perlbmk from 338s to 13.70s (a 25x improvement!), making us
now about 4% faster than GCC.
Further improvements are also possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23477 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 21:18:17 +00:00
Chris Lattner
fe15830f96
Make the pass name simpler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23476 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 21:10:32 +00:00
Chris Lattner
b94388a76a
fix CBackend/2005-09-27-VolatileFuncPtr.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23475 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 20:52:44 +00:00
Chris Lattner
6d7277b3b4
allow demotion to volatile values, add support for invoke
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23473 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 19:39:00 +00:00
Chris Lattner
333bd835bd
Make sure to clear the CodeGenMap after each basic block is selected to avoid
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cross MBB pollution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23470 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 17:45:33 +00:00
Jim Laskey
5324fec644
Remove some redundancies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23469 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 17:32:45 +00:00
Chris Lattner
df0ef1d0fe
Split SimpleConstantVal up into its components, so each Constant subclass getsa different enum value. This allows 'classof' for these to be really simple,not needing to call getType() anymore.
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This speeds up isa/dyncast/etc for constants, and also makes them smaller.
For example, the text section of a release build of InstCombine.cpp shrinks
from 230037 bytes to 216363 bytes, a 6% reduction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23467 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 06:09:08 +00:00
Chris Lattner
a9ec8ab32b
Add support for external calls that we know how to constant fold. This implements
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ctor-list-opt.ll:CTOR8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23465 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 05:02:43 +00:00
Chris Lattner
231308c545
Fix a bug where we would evaluate stores into linkonce objects which could be
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potentially replaced at link-time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23463 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:50:03 +00:00
Chris Lattner
cd27142cc8
Implement support for static constructors with calls in them. This is useful
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because gccas runs globalopt before inlining.
This implements ctor-list-opt.ll:CTOR7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23462 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:45:34 +00:00
Chris Lattner
8a7cc6e71c
Refactor this code a bit, no functionality changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23460 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 04:27:01 +00:00
Chris Lattner
5e8d2dc197
Move the post-lsr simplify cfg pass after lowereh, so it can clean up after
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eh lowering as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23459 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-27 00:14:41 +00:00
Chris Lattner
30e21a46f0
minor pattern shuffling
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23458 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 22:20:16 +00:00
Jim Laskey
e6b90fba4a
Addition of a simple two pass scheduler. This version is currently hacked up
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for testing and will require target machine info to do a proper scheduling.
The simple scheduler can be turned on using -sched=simple (defaults
to -sched=none)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23455 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 21:57:04 +00:00
Chris Lattner
ff0c1ef9eb
Remove some dead code. ctor evaluation subsumes empty ctor elim
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23453 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 20:38:20 +00:00
Chris Lattner
a22fdb0a37
Add support for alloca, implementing ctor-list-opt.ll:CTOR6
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23452 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 17:07:09 +00:00
Chris Lattner
aae4a1cd3f
Add a debug printout, fix a crash on kc++
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23450 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 07:34:35 +00:00
Chris Lattner
798b4d5bb3
Implement loads/stores through GEP's of globals. This implements
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ctor-list-opt.ll:CTOR5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23449 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 06:52:44 +00:00
Chris Lattner
0b142e3920
Replace TraverseGEPInitializer with ConstantFoldLoadThroughGEPConstantExpr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23447 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:34:07 +00:00
Chris Lattner
ebe61201d1
Eliminate GetGEPGlobalInitializer in favor of the more powerful
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ConstantFoldLoadThroughGEPConstantExpr function in the utils lib.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23446 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:28:52 +00:00
Chris Lattner
363f2a26d5
Factor the GetGEPGlobalInitializer out of this pass and into Transforms/Utils
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as ConstantFoldLoadThroughGEPConstantExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23445 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:28:06 +00:00
Chris Lattner
c5f52e6da1
Move the ConstantFoldLoadThroughGEPConstantExpr function out of the InstCombine
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pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23444 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:27:10 +00:00
Chris Lattner
562a055ca7
add a comment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23442 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:16:34 +00:00
Chris Lattner
04de1cfb2b
Add support for getelementptr, load, and correctly reject volatile stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23441 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 05:15:37 +00:00
Chris Lattner
cdf98bed96
Add support for br/brcond/switch and phi
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23439 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 04:57:38 +00:00
Chris Lattner
79c1101947
Add a simple interpreter to this code, allowing us to statically evaluate
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global ctors that are simple enough. This implements ctor-list-opt.ll:CTOR2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23437 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 04:44:35 +00:00
Chris Lattner
db973e60ce
factor some code into a InstallGlobalCtors method, add comments. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23435 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 02:31:18 +00:00
Chris Lattner
7d8e58f384
Make the global opt optimizer work on modules with a null terminator, by
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accepting the null even with a non-65535 init prio
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23434 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 02:19:27 +00:00
Chris Lattner
b1ab458047
Factor this code out into a few methods.
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Implement the start of global ctor optimization. It is currently smart
enough to remove the global ctor for cases like this:
struct foo {
foo() {}
} x;
... saving a bit of startup time for the program.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23433 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-26 01:43:45 +00:00
Chris Lattner
aebac50e77
Fix some logic I broke that caused a regression on
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SimplifyLibCalls/2005-05-20-sprintf-crash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23430 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-25 07:06:48 +00:00
Chris Lattner
5931c54e85
Move MaskedValueIsZero up.
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Match a bunch of idioms for sign extensions, implementing InstCombine/signext.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23428 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 23:43:33 +00:00
Chris Lattner
5d735bf29b
Simplify this code a bit by relying on recursive simplification. Support
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sprintf("%s", P)'s that have uses.
s/hasNUses(0)/use_empty()/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23425 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 22:17:06 +00:00
Chris Lattner
5b845c9443
Add support for a marker byte that indicates that we shouldn't add the user
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prefix to a symbol name
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23421 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 08:24:28 +00:00
Chris Lattner
ea874f3306
Teach the dag isel generator how to construct arbitrary immediates. The
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generated isel now tries li then lis, then lis+ori.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23418 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:41:58 +00:00
Chris Lattner
b60e0815df
remove some debugging code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23411 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 18:49:09 +00:00
Chris Lattner
263d1e469d
Fold two consequtive branches that share a common destination between them.
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This implements SimplifyCFG/branch-fold.ll, and is useful on ?:/min/max heavy
code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23410 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 18:47:20 +00:00
Chris Lattner
055dc102e9
simplify some logic further
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23408 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 07:23:18 +00:00
Chris Lattner
f58c1a578e
pull a bunch of logic out of SimplifyCFG into a helper fn
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23407 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 06:39:30 +00:00
Chris Lattner
7c439929bc
speed up Archive::isBytecodeArchive in the case when the archive doesn't have
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an llvm-ranlib symtab. This speeds up gccld -native on an almost empty .o file
from 1.63s to 0.18s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23406 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 06:22:58 +00:00
Chris Lattner
5ae7911b24
Turn (X^C1) == C2 into X == C1^C2 iff X&~C1 = 0 (and move a function)
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This happens all the time on PPC for bool values, e.g. eliminating a xori
in inverted-bool-compares.ll.
This should be added to the dag combiner as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23403 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 00:55:52 +00:00
Chris Lattner
3c3fe462f7
Expose the LiveInterval interfaces as public headers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23400 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-21 04:19:09 +00:00
Chris Lattner
e9487f0dc8
Start threading across blocks with code in them, so long as the code does
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not define a value that is used outside of it's block. This catches many
more simplifications, e.g. 854 in 176.gcc, 137 in vpr, etc.
This implements branch-phi-thread.ll:test3.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23397 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-20 01:48:40 +00:00
Chris Lattner
2e42e36698
Implement merging of blocks with the same condition if the block has multiple
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predecessors. This implements branch-phi-thread.ll::test1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23395 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-20 00:43:16 +00:00
Chris Lattner
9c88d98162
Reject a case we don't handle yet
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23393 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-19 23:57:04 +00:00
Chris Lattner
7e1ff8d2d9
remove debugging code :-/
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23392 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-19 23:50:15 +00:00
Chris Lattner
eaba3a194c
Implement SimplifyCFG/branch-phi-thread.ll, the most trivial case of threading
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control across branches with determined outcomes. More generality to follow.
This triggers a couple thousand times in specint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23391 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-19 23:49:37 +00:00