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Author SHA1 Message Date
Chris Lattner
3c9cb55f13 Never rely on ReplaceAllUsesWith when selecting, use CodeGenMap instead. 
ReplaceAllUsesWith does not replace scalars SDOperand floating around on
the stack, permitting things to be selected multiple times.

llvm-svn: 23515
 2005-09-29 00:59:32 +00:00
Chris Lattner
0c905d0186 Codegen ADD X, IMM -> addis/addi if needed. 
This implements PowerPC/fold-li.ll

llvm-svn: 23514
 2005-09-28 23:07:13 +00:00
Chris Lattner
7ae5d2a51d add a testcase for a feature we regressed on because noone wrote the test! :( 
llvm-svn: 23513
 2005-09-28 23:03:11 +00:00
Chris Lattner
04dae1b9ce Autogen MUL, move FP cases together 
llvm-svn: 23512
 2005-09-28 22:53:16 +00:00
Chris Lattner
6f2adbd5b0 disentangle FP from INT versions of div/mul 
llvm-svn: 23511
 2005-09-28 22:50:24 +00:00
Chris Lattner
95601538e4 Use the autogenerated matcher for ADD/SUB 
llvm-svn: 23510
 2005-09-28 22:47:28 +00:00
Chris Lattner
57694930e5 add a patter for SUBFIC 
llvm-svn: 23509
 2005-09-28 22:47:06 +00:00
Chris Lattner
e3d0ea8e0f Mark int binops as int-only, add FP binops. Mark FADD/FMUL as commutative but 
not associative.  Add [SU]REM.

llvm-svn: 23508
 2005-09-28 22:38:27 +00:00
Chris Lattner
8503ee5b01 wrap a long line 
llvm-svn: 23507
 2005-09-28 22:30:58 +00:00
Chris Lattner
9a2fb006e4 Add FP versions of the binary operators, keeping the int and fp worlds seperate. 
llvm-svn: 23506
 2005-09-28 22:29:58 +00:00
Chris Lattner
d3b3d07c41 Add FP versions of the binary operators, keeping the int and fp worlds seperate. 
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.

llvm-svn: 23505
 2005-09-28 22:29:17 +00:00
Chris Lattner
61f3785147 Add FP versions of the binary operators, keeping the int and fp worlds seperate. 
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.

llvm-svn: 23504
 2005-09-28 22:28:18 +00:00
Chris Lattner
97cd256caf Mark associative nodes as associative 
llvm-svn: 23503
 2005-09-28 20:58:39 +00:00
Chris Lattner
86a339dc34 add support for an associative marker 
llvm-svn: 23502
 2005-09-28 20:58:06 +00:00
Chris Lattner
0231f57a46 Emit an error if instructions or patterns are defined but can never match. 
Currently we check that immediate values live on the RHS of commutative
operators.  Defining ORI like this, for example:

def ORI   : DForm_4<24, (ops GPRC:$dst, GPRC:$src1, u16imm:$src2),
                    "ori $dst, $src1, $src2",
                    [(set GPRC:$dst, (or immZExt16:$src2, GPRC:$src1))]>;

results in:

tblgen: In ORI: Instruction can never match: Immediate values must be on the RHS of commutative operators!
llvm-svn: 23501
 2005-09-28 19:27:25 +00:00
Chris Lattner
2c54044630 Nate pointed out that mulh[us] are commutative as well. Thanks! 
llvm-svn: 23500
 2005-09-28 19:01:44 +00:00
Chris Lattner
18ccb532b5 collect commutativity information 
llvm-svn: 23499
 2005-09-28 18:28:29 +00:00
Chris Lattner
f9cb3cd512 expose commutativity information 
llvm-svn: 23498
 2005-09-28 18:27:58 +00:00
Chris Lattner
64a7b30379 All (xor *) cases are autogenerated now 
llvm-svn: 23497
 2005-09-28 18:12:37 +00:00
Chris Lattner
90179cf384 add support for missed eqv tests 
llvm-svn: 23496
 2005-09-28 18:10:51 +00:00
Chris Lattner
eb8d9090c3 add testcase for nand 
llvm-svn: 23495
 2005-09-28 18:08:58 +00:00
Chris Lattner
82eb231e2f Implement PowerPC/eqv-andc-orc-nor.ll:EQV3 
llvm-svn: 23494
 2005-09-28 18:04:52 +00:00
Chris Lattner
816f712c69 Consolidate the eqv.ll and nor.ll files together. 
Add a missed eqv case.

llvm-svn: 23493
 2005-09-28 18:04:22 +00:00
Chris Lattner
5dae8ab260 Prefer cheaper patterns to more expensive ones. Print the costs to the generated 
file

llvm-svn: 23492
 2005-09-28 17:57:56 +00:00
Chris Lattner
26c05140ee simple tests for nor generation 
llvm-svn: 23491
 2005-09-28 17:55:10 +00:00
Chris Lattner
2d240ce480 learn to codegen not as NOR instead of xoris/xori 
llvm-svn: 23490
 2005-09-28 17:13:15 +00:00
Chris Lattner
dad2994a3a These nodes are all autogenerated 
llvm-svn: 23489
 2005-09-28 17:07:09 +00:00
Chris Lattner
eeead91a84 Select Constant nodes to TargetConstant nodes 
llvm-svn: 23488
 2005-09-28 16:58:06 +00:00
Chris Lattner
6ce1d7dabb Constant fold llvm.sqrt 
llvm-svn: 23487
 2005-09-28 01:34:32 +00:00
Chris Lattner
cd79ed877a add a note about a way to improve this code further, that I won't be getting 
to right now.

llvm-svn: 23485
 2005-09-27 22:44:59 +00:00
Chris Lattner
80e4480cfa Fix a regression in my previous patch, fixing GlobalOpt/2005-09-27-Crash.ll 
and PR632.

llvm-svn: 23484
 2005-09-27 22:28:11 +00:00
Chris Lattner
14ade87e75 Testcase for PR632 
llvm-svn: 23483
 2005-09-27 22:27:19 +00:00
Chris Lattner
4bc65cb445 Darwin, like many BSD systems, has a setjmp/longjmp which saves the signal mask 
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.

llvm-svn: 23482
 2005-09-27 22:18:25 +00:00
Chris Lattner
4655e9de38 If the target prefers it, use _setjmp/_longjmp should be used instead of setjmp/longjmp for llvm.setjmp/llvm.longjmp. 
llvm-svn: 23481
 2005-09-27 22:15:53 +00:00
Chris Lattner
c7eb6f9169 initialize new flag 
llvm-svn: 23480
 2005-09-27 22:13:56 +00:00
Chris Lattner
62922d5727 Add a new flag for targets where setjmp/longjmp saves/restores the signal mask, 
and _setjmp/_longjmp should be used instead (for llvm.setjmp/llvm.longjmp).

llvm-svn: 23479
 2005-09-27 22:13:36 +00:00
Chris Lattner
8ff6df40ba Avoid spilling stack slots... to stack slots. 
llvm-svn: 23478
 2005-09-27 21:33:12 +00:00
Chris Lattner
b2fa69f4b2 Completely rewrite 'correct' eh support. This changes how setjmp insertion 
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.

llvm-svn: 23477
 2005-09-27 21:18:17 +00:00
Chris Lattner
29f2ba1384 Make the pass name simpler 
llvm-svn: 23476
 2005-09-27 21:10:32 +00:00
Chris Lattner
bcba1677fd fix CBackend/2005-09-27-VolatileFuncPtr.ll 
llvm-svn: 23475
 2005-09-27 20:52:44 +00:00
Chris Lattner
379b92a59d new testcase the CBE creates invalid C code for 
llvm-svn: 23474
 2005-09-27 20:52:30 +00:00
Chris Lattner
92b0563eb3 allow demotion to volatile values, add support for invoke 
llvm-svn: 23473
 2005-09-27 19:39:00 +00:00
Chris Lattner
dbef366ea5 allow demotion to volatile values 
llvm-svn: 23472
 2005-09-27 19:38:43 +00:00
Chris Lattner
521f09d4c5 Add a simple testcase for lowerinvoke 
llvm-svn: 23471
 2005-09-27 18:34:31 +00:00
Chris Lattner
6d1a2716a4 Make sure to clear the CodeGenMap after each basic block is selected to avoid 
cross MBB pollution.

llvm-svn: 23470
 2005-09-27 17:45:33 +00:00
Jim Laskey
5a82322c66 Remove some redundancies. 
llvm-svn: 23469
 2005-09-27 17:32:45 +00:00
Chris Lattner
96f29dbdbe Make this slightly more efficient by pushing actual type information down 
into the evaluator.  This shrinks a release build of instcombine's text
section from 216363 to 215975 bytes (on PPC).

llvm-svn: 23468
 2005-09-27 06:38:05 +00:00
Chris Lattner
20786460b5 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. 
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.

llvm-svn: 23467
 2005-09-27 06:09:08 +00:00
Chris Lattner
92616caa1a Split SimpleConstantVal up into its components, so each Constant subclass gets 
a different enum value.  This allows 'classof' for these to be really simple,
not needing to call getType() anymore.

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.

llvm-svn: 23466
 2005-09-27 06:08:32 +00:00
Chris Lattner
e242673da3 Add support for external calls that we know how to constant fold. This implements 
ctor-list-opt.ll:CTOR8

llvm-svn: 23465
 2005-09-27 05:02:43 +00:00