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1605 Commits

Author SHA1 Message Date
Chris Lattner
300076cbd8 Pattern match vmrg* instructions, which are now lowered by the CFE into shuffles. 
llvm-svn: 27457
 2006-04-06 21:11:54 +00:00
Chris Lattner
6cf87c1b01 remove two done items 
llvm-svn: 27453
 2006-04-06 19:19:38 +00:00
Chris Lattner
2875bb116e Support pattern matching vsldoi(x,y) and vsldoi(x,x), which allows the f.e. to 
lower it and LLVM to have one fewer intrinsic.  This implements
CodeGen/PowerPC/vec_shuffle.ll

llvm-svn: 27450
 2006-04-06 18:26:28 +00:00
Chris Lattner
10fa7be550 Compile the vpkuhum/vpkuwum intrinsics into vpkuhum/vpkuwum instead of into 
vperm with a perm mask lvx'd from the constant pool.

llvm-svn: 27448
 2006-04-06 17:23:16 +00:00
Chris Lattner
7f13e50435 Add all of the data stream intrinsics and instructions. woo 
llvm-svn: 27442
 2006-04-05 22:27:14 +00:00
Chris Lattner
338945e669 Fix a typo 
llvm-svn: 27440
 2006-04-05 20:15:25 +00:00
Chris Lattner
d1b47b18ed Fix CodeGen/PowerPC/2006-04-05-splat-ish.ll 
llvm-svn: 27439
 2006-04-05 17:39:25 +00:00
Evan Cheng
9e56e97205 Fallthrough to expand if a VECTOR_SHUFFLE cannot be custom lowered. 
llvm-svn: 27433
 2006-04-05 06:09:26 +00:00
Chris Lattner
ee971bedf2 add vsl 
llvm-svn: 27425
 2006-04-05 01:16:22 +00:00
Chris Lattner
993209029f add vmladduhm 
llvm-svn: 27423
 2006-04-05 00:49:48 +00:00
Chris Lattner
66c3b75644 Add m[tf]vscr instructions. 
llvm-svn: 27421
 2006-04-05 00:03:57 +00:00
Chris Lattner
10394b1c42 add a note 
llvm-svn: 27419
 2006-04-04 23:45:11 +00:00
Chris Lattner
e7a52b473f Add missing byte merges. 
llvm-svn: 27418
 2006-04-04 23:43:56 +00:00
Chris Lattner
ab137b431f Add FP -> Int Conversions 
llvm-svn: 27417
 2006-04-04 23:25:02 +00:00
Chris Lattner
6cf881590f add average intrinsics 
llvm-svn: 27416
 2006-04-04 23:14:00 +00:00
Chris Lattner
59c4add58a add a note 
llvm-svn: 27414
 2006-04-04 22:43:55 +00:00
Chris Lattner
d1483ca1ad Fix some broken logic that would cause us to codegen {2147483647,2147483647,2147483647,2147483647} as 'vspltisb v0, -1'. 
llvm-svn: 27413
 2006-04-04 22:28:35 +00:00
Chris Lattner
4e99e6dfdd Ask legalize to promote all vector shuffles to be v16i8 instead of having to 
handle all 4 PPC vector types.   This simplifies the matching code and allows
us to eliminate a bunch of patterns.  This also adds cases we were missing,
such as CodeGen/PowerPC/vec_splat.ll:splat_h.

llvm-svn: 27400
 2006-04-04 17:25:31 +00:00
Chris Lattner
2bf9c8cc18 Plug in the byte and short splats 
llvm-svn: 27387
 2006-04-04 00:05:13 +00:00
Chris Lattner
0128e4d335 Revert accidentally committed hunks. 
llvm-svn: 27386
 2006-04-03 23:58:04 +00:00
Chris Lattner
57b9e01b3e Make sure to mark unsupported SCALAR_TO_VECTOR operations as expand. 
llvm-svn: 27385
 2006-04-03 23:55:43 +00:00
Chris Lattner
eb9684f6a4 Force use of a frame-pointer if there is anything on the stack that is aligned 
more than the OS keeps the stack aligned.

llvm-svn: 27381
 2006-04-03 22:03:29 +00:00
Chris Lattner
c65511b05c Add the full set of min/max instructions 
llvm-svn: 27372
 2006-04-03 15:58:28 +00:00
Chris Lattner
fa82c33ae7 add a note 
llvm-svn: 27360
 2006-04-02 07:20:00 +00:00
Chris Lattner
8ba4723c74 Inform the dag combiner that the predicate compares only return a low bit. 
llvm-svn: 27359
 2006-04-02 06:26:07 +00:00
Chris Lattner
8967316b8c Remove done item 
llvm-svn: 27351
 2006-04-02 05:28:54 +00:00
Chris Lattner
9c24ec6de5 add a note 
llvm-svn: 27348
 2006-04-02 03:59:11 +00:00
Chris Lattner
da4217646a Custom lower all BUILD_VECTOR's so that we can compile vec_splat_u8(8) into 
"vspltisb v0, 8" instead of a constant pool load.

llvm-svn: 27335
 2006-04-02 00:43:36 +00:00
Chris Lattner
38318b2706 Implement vnot using VNOR instead of using 'vspltisb v0, -1' and vxor 
llvm-svn: 27331
 2006-04-01 22:41:47 +00:00
Chris Lattner
32bb17a5f3 Shrinkify some more intrinsic definitions. 
llvm-svn: 27322
 2006-03-31 22:41:56 +00:00
Chris Lattner
12e9ce7104 Pull operand asm string into base class, shrinkifying intrinsic definitions. 
No functionality change.

llvm-svn: 27320
 2006-03-31 22:34:05 +00:00
Chris Lattner
3d6e5f8a05 Fix 80 column violations :) 
llvm-svn: 27315
 2006-03-31 21:57:36 +00:00
Chris Lattner
d66dd2a4ee fix a pasto 
llvm-svn: 27308
 2006-03-31 21:19:06 +00:00
Chris Lattner
28219f34bc Add vperm support for all datatypes 
llvm-svn: 27307
 2006-03-31 20:00:35 +00:00
Chris Lattner
336d6646ab Rearrange code a bit 
llvm-svn: 27306
 2006-03-31 19:52:36 +00:00
Chris Lattner
786f782398 Add, sub and shuffle are legal for all vector types 
llvm-svn: 27305
 2006-03-31 19:48:58 +00:00
Chris Lattner
d27ced882b add a note 
llvm-svn: 27302
 2006-03-31 19:00:22 +00:00
Chris Lattner
e3774da014 note to self: *save* file, then check it in 
llvm-svn: 27291
 2006-03-31 06:04:53 +00:00
Chris Lattner
95d358dbdb Implement an item from the readme, folding vcmp/vcmp. instructions with 
identical instructions into a single instruction.  For example, for:

void test(vector float *x, vector float *y, int *P) {
  int v = vec_any_out(*x, *y);
  *x = (vector float)vec_cmpb(*x, *y);
  *P = v;
}

we now generate:

_test:
        mfspr r2, 256
        oris r6, r2, 49152
        mtspr 256, r6
        lvx v0, 0, r4
        lvx v1, 0, r3
        vcmpbfp. v0, v1, v0
        mfcr r4, 2
        stvx v0, 0, r3
        rlwinm r3, r4, 27, 31, 31
        xori r3, r3, 1
        stw r3, 0(r5)
        mtspr 256, r2
        blr

instead of:

_test:
        mfspr r2, 256
        oris r6, r2, 57344
        mtspr 256, r6
        lvx v0, 0, r4
        lvx v1, 0, r3
        vcmpbfp. v2, v1, v0
        mfcr r4, 2
***     vcmpbfp v0, v1, v0
        rlwinm r4, r4, 27, 31, 31
        stvx v0, 0, r3
        xori r3, r4, 1
        stw r3, 0(r5)
        mtspr 256, r2
        blr

Testcase here: CodeGen/PowerPC/vcmp-fold.ll

llvm-svn: 27290
 2006-03-31 06:02:07 +00:00
Chris Lattner
560f734320 compactify some more instruction definitions 
llvm-svn: 27288
 2006-03-31 05:38:32 +00:00
Chris Lattner
2c3d6bdb55 Compactify comparisons. 
llvm-svn: 27287
 2006-03-31 05:32:57 +00:00
Chris Lattner
e330741a6c Lower vector compares to VCMP nodes, just like we lower vector comparison 
predicates to VCMPo nodes.

llvm-svn: 27285
 2006-03-31 05:13:27 +00:00
Chris Lattner
a7a7c035b3 These are done 
llvm-svn: 27284
 2006-03-31 04:53:21 +00:00
Chris Lattner
a31d719e0a Mark INSERT_VECTOR_ELT as expand 
llvm-svn: 27276
 2006-03-31 01:48:55 +00:00
Chris Lattner
87d3a2e045 Add the rest of the vmul instructions and the vmulsum* instructions. 
llvm-svn: 27268
 2006-03-30 23:39:06 +00:00
Chris Lattner
22b7e551f1 Use a new tblgen feature to significantly shrinkify instruction definitions that 
directly correspond to intrinsics.

llvm-svn: 27266
 2006-03-30 23:21:27 +00:00
Chris Lattner
6aca6013d2 Add a bunch of new instructions for intrinsics. 
llvm-svn: 27265
 2006-03-30 23:07:36 +00:00
Chris Lattner
1a773f8f18 add a note 
llvm-svn: 27243
 2006-03-29 00:24:13 +00:00
Chris Lattner
93559450b8 add a note 
llvm-svn: 27227
 2006-03-28 18:56:23 +00:00
Jim Laskey
eb38a3e83a Expose base register for DwarfWriter. Refactor code accordingly. 
llvm-svn: 27225
 2006-03-28 13:48:33 +00:00
Nate Begeman
d432d66cc8 Fix a couple typos 
llvm-svn: 27216
 2006-03-28 04:18:18 +00:00
Nate Begeman
5a82c8ccbd Add a few more altivec intrinsics 
llvm-svn: 27215
 2006-03-28 04:15:58 +00:00
Chris Lattner
a570305421 implement a bunch more intrinsics. 
llvm-svn: 27209
 2006-03-28 02:29:37 +00:00
Chris Lattner
ac98e20cc9 Use normal lvx for scalar_to_vector instead of lve*x. They do the exact 
same thing and we have a dag node for the former.

llvm-svn: 27205
 2006-03-28 01:43:22 +00:00
Chris Lattner
d5da541d42 Tblgen doesn't like multiple SDNode<> definitions that map to the sameenum value. Split them into separate enums. 
llvm-svn: 27201
 2006-03-28 00:40:33 +00:00
Jim Laskey
8688957c53 Translate llvm target registers to dwarf register numbers properly. 
llvm-svn: 27180
 2006-03-27 20:18:45 +00:00
Chris Lattner
dab8425129 Add a bunch of notes from my journey thus far. 
llvm-svn: 27170
 2006-03-27 07:41:00 +00:00
Chris Lattner
f1d6a9483f Split out altivec notes into their own README 
llvm-svn: 27168
 2006-03-27 07:04:16 +00:00
Chris Lattner
4b0fc38fe7 Fix the JIT encoding of VSEL 
llvm-svn: 27160
 2006-03-27 03:34:17 +00:00
Chris Lattner
b5efa3e0f5 Fix the JIT encoding of VSPLTI* 
llvm-svn: 27159
 2006-03-27 03:28:57 +00:00
Nate Begeman
3d518334b9 SelectionDAGISel can now natively handle Switch instructions, in the same 
manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary
search tree of basic blocks.  The new approach has several advantages:
it is faster, it generates significantly smaller code in many cases, and
it paves the way for implementing dense switch tables as a jump table by
handling switches directly in the instruction selector.

This functionality is currently only enabled on x86, but should be safe for
every target.  In anticipation of making it the default, the cfg is now
properly updated in the x86, ppc, and sparc select lowering code.

llvm-svn: 27156
 2006-03-27 01:32:24 +00:00
Chris Lattner
03ad35fd49 add vsel 
llvm-svn: 27153
 2006-03-26 22:38:43 +00:00
Chris Lattner
65a455b060 Codegen vector predicate compares. 
llvm-svn: 27151
 2006-03-26 10:06:40 +00:00
Evan Cheng
b17bbf8ccb Remove PPC:isZeroVector, use ISD::isBuildVectorAllZeros instead 
llvm-svn: 27149
 2006-03-26 09:52:32 +00:00
Chris Lattner
f0c36b99e6 Add all of the altivec comparison instructions. Add patterns for the 
non-predicate altivec compare intrinsics.

llvm-svn: 27143
 2006-03-26 04:57:17 +00:00
Chris Lattner
4e0a78ea30 Add and 8/16-bit adds, add all integer subtracts, add saturating subtract 
intrinsics.

llvm-svn: 27142
 2006-03-26 02:39:02 +00:00
Chris Lattner
d33ef7a1bc implement the vsldoi intrinsic. 
llvm-svn: 27139
 2006-03-26 00:41:48 +00:00
Chris Lattner
7d557e00f3 fix the pattern for vandc, it's NOT vnand 
llvm-svn: 27136
 2006-03-25 23:10:40 +00:00
Chris Lattner
88a0c65463 add patterns for VANDC/VNOR, implementing 
CodeGen/PowerPC/eqv-andc-orc-nor.ll:VNOR/VANDC

llvm-svn: 27135
 2006-03-25 23:05:29 +00:00
Chris Lattner
f80b39f9b1 Add some logical operations 
llvm-svn: 27127
 2006-03-25 22:16:05 +00:00
Chris Lattner
d2823658b4 implement a bunch of intrinsics 
llvm-svn: 27118
 2006-03-25 08:01:02 +00:00
Chris Lattner
cb5f9269a9 Move all Altivec stuff out into a new PPCInstrAltivec.td file. 
Add a bunch of patterns for different datatypes, e.g. bit_convert, undef and
zero vector support.

llvm-svn: 27117
 2006-03-25 07:51:43 +00:00
Chris Lattner
57064915a6 Add some basic patterns for other datatypes 
llvm-svn: 27116
 2006-03-25 07:39:07 +00:00
Chris Lattner
7f5fba9c67 add all supported formats to the vector register file 
llvm-svn: 27115
 2006-03-25 07:36:56 +00:00
Chris Lattner
2fa3a6c436 Add support for __builtin_altivec_vnmsubfp /vmaddfp 
llvm-svn: 27112
 2006-03-25 07:05:55 +00:00
Chris Lattner
e199d55073 #include Intrinsics.h into all dag isels 
llvm-svn: 27109
 2006-03-25 06:47:10 +00:00
Chris Lattner
0899b16b2d Codegen things like: 
<int -1, int -1, int -1, int -1>
and
 <int 65537, int 65537, int 65537, int 65537>

Using things like:
  vspltisb v0, -1
and:
  vspltish v0, 1

instead of using constant pool loads.

This implements CodeGen/PowerPC/vec_splat.ll:splat_imm_i{32|16}.

llvm-svn: 27106
 2006-03-25 06:12:06 +00:00
Jim Laskey
1716e53341 Add dwarf register numbering to register data. 
llvm-svn: 27081
 2006-03-24 21:15:58 +00:00
Chris Lattner
8840036091 add another note 
llvm-svn: 27077
 2006-03-24 20:04:27 +00:00
Chris Lattner
21abff3712 Fix a bad JIT encoding of VPERM. Why is VPERM D,A,B,C but vfmadd is D,A,C,B ?? 
llvm-svn: 27069
 2006-03-24 18:24:43 +00:00
Chris Lattner
3133dafd4b Like the comment says, prefer to use the implicit add done by [r+r] addressing 
modes than emitting an explicit add and using a base of r0.  This implements
Regression/CodeGen/PowerPC/mem-rr-addr-mode.ll

llvm-svn: 27068
 2006-03-24 17:58:06 +00:00
Chris Lattner
303dc30593 Disable the i32->float G5 optimization. It is unsafe, as documented in the 
comment.

This fixes 177.mesa, and McCat/09-vor with the td scheduler.

llvm-svn: 27060
 2006-03-24 07:53:47 +00:00
Chris Lattner
ba4966c16c add support for using vxor to build zero vectors. This implements 
Regression/CodeGen/PowerPC/vec_zero.ll

llvm-svn: 27059
 2006-03-24 07:48:08 +00:00
Chris Lattner
ace2d0d227 Gabor points out that we can't spell. :) 
llvm-svn: 27049
 2006-03-24 07:12:19 +00:00
Chris Lattner
2e5162fa6e add a note 
llvm-svn: 27000
 2006-03-23 21:28:44 +00:00
Chris Lattner
974982c89c Add PPC vector bit-convert support 
llvm-svn: 26995
 2006-03-23 19:54:27 +00:00
Jim Laskey
cec9c18c62 Add support to locate local variables in frames (early version.) 
llvm-svn: 26994
 2006-03-23 18:12:57 +00:00
Jim Laskey
f3cc740d75 Change interface to DwarfWriter. 
llvm-svn: 26991
 2006-03-23 18:09:44 +00:00
Chris Lattner
89e0790edb Eliminate IntrinsicLowering from TargetMachine. 
Make the CBE and V9 backends create their own, since they're the only ones that use it.

llvm-svn: 26974
 2006-03-23 05:43:16 +00:00
Chris Lattner
5141ebb2c4 This has been implemented. Tweak it into another note 
llvm-svn: 26944
 2006-03-22 05:33:23 +00:00
Chris Lattner
f84f3bf95b When possible, custom lower 32-bit SINT_TO_FP to this: 
_foo2:
        extsw r2, r3
        std r2, -8(r1)
        lfd f0, -8(r1)
        fcfid f0, f0
        frsp f1, f0
        blr

instead of this:

_foo2:
        lis r2, ha16(LCPI2_0)
        lis r4, 17200
        xoris r3, r3, 32768
        stw r3, -4(r1)
        stw r4, -8(r1)
        lfs f0, lo16(LCPI2_0)(r2)
        lfd f1, -8(r1)
        fsub f0, f1, f0
        frsp f1, f0
        blr

This speeds up Misc/pi from 2.44s->2.09s with LLC and from 3.01->2.18s
with llcbeta (16.7% and 38.1% respectively).

llvm-svn: 26943
 2006-03-22 05:30:33 +00:00
Chris Lattner
cfbce5186a Add support for "ri" addressing modes where the immediate is a 14-bit field 
which is shifted left two bits before use.  Instructions like STD use this
addressing mode.

llvm-svn: 26942
 2006-03-22 05:26:03 +00:00
Chris Lattner
2e606dc60f Fix the JIT encoding of the VAForm_1 instructions, including vmaddfp 
llvm-svn: 26935
 2006-03-22 01:44:36 +00:00
Chris Lattner
31a93c7740 These targets don't support EXTRACT_VECTOR_ELT, though, in time, X86 will. 
llvm-svn: 26930
 2006-03-21 20:51:05 +00:00
Chris Lattner
140be98ab8 Don't emit pseudo instructions! 
llvm-svn: 26926
 2006-03-21 20:19:37 +00:00
Nate Begeman
4bd73df4bd Update readme 
llvm-svn: 26924
 2006-03-21 18:58:20 +00:00
Chris Lattner
414fed4108 Print absolute memory references like this: 
lwz r2, 8(0)
instead of this:
       lwz r2, 8(r0)

This fixes the llc/llc-beta failures on PPC last night.

llvm-svn: 26922
 2006-03-21 17:21:13 +00:00
Chris Lattner
6417236c41 With Evan's latest tblgen patch, this code is obsolete, thanks Evan! 
llvm-svn: 26917
 2006-03-21 06:37:40 +00:00
Chris Lattner
acb2506622 When codegen'ing vector MUL using VFMADD, *add* the 0, don't *mul* the 0. 
llvm-svn: 26913
 2006-03-21 00:51:38 +00:00
Chris Lattner
9e611a25c7 minor note 
llvm-svn: 26912
 2006-03-21 00:47:09 +00:00
Chris Lattner
cdc4657988 Handle constant addresses more efficiently, folding the low bits into the 
disp field of the load/store if possible.  This compiles
CodeGen/PowerPC/load-constant-addr.ll to:

_test:
        lis r2, 2838
        lfs f1, 26848(r2)
        blr

instead of:

_test:
        lis r2, 2838
        ori r2, r2, 26848
        lfs f1, 0(r2)
        blr

llvm-svn: 26908
 2006-03-20 22:38:22 +00:00
Chris Lattner
a498dd25d9 remove dead variable 
llvm-svn: 26907
 2006-03-20 22:37:23 +00:00
Chris Lattner
978628896b Fix a couple of bugs in permute/splat generate, thanks to Nate for actually 
figuring these out! :)

llvm-svn: 26904
 2006-03-20 18:26:51 +00:00
Chris Lattner
5c994b8c63 reenable this hack, the tblgen version isn't quite ready 
llvm-svn: 26902
 2006-03-20 17:54:43 +00:00
Chris Lattner
fb0e160aa5 Fix the pattern for VADDUWM, add i32 splat 
llvm-svn: 26901
 2006-03-20 17:51:58 +00:00
Evan Cheng
57da1afbc8 Use tblgen'd VECTOR_SHUFFLE selection code. 
llvm-svn: 26900
 2006-03-20 08:14:16 +00:00
Chris Lattner
dc3605efdb Add support for generating vspltw, instead of a vperm instruction with a 
constant pool load.  This generates significantly nicer code for splats.

When tblgen gets bugfixed, we can remove the custom selection code.

llvm-svn: 26898
 2006-03-20 06:51:10 +00:00
Chris Lattner
8faa2cf693 Implement PPC::isSplatShuffleMask and PPC::getVSPLTImmediate. 
llvm-svn: 26897
 2006-03-20 06:37:44 +00:00
Chris Lattner
4b7aa59bbc fix duplicate definition errors 
llvm-svn: 26896
 2006-03-20 06:33:01 +00:00
Chris Lattner
1cdeda1c5a Check in some intermediate code that adds a skeleton for matching vsplt* 
instructions

llvm-svn: 26894
 2006-03-20 06:15:45 +00:00
Chris Lattner
c230af9810 fix typo 
llvm-svn: 26889
 2006-03-20 05:05:55 +00:00
Chris Lattner
bea056ecf2 add vsplat instructions, fix sched description for vperm 
llvm-svn: 26888
 2006-03-20 04:47:33 +00:00
Chris Lattner
0e56cf0d94 Custom lower arbitrary VECTOR_SHUFFLE's to VPERM. 
TODO: leave specific ones as VECTOR_SHUFFLE's and turn them into specialized
operations like vsplt*

llvm-svn: 26887
 2006-03-20 01:53:53 +00:00
Chris Lattner
65e6e12dca Claim to have v16i8 for perm masks 
llvm-svn: 26886
 2006-03-20 01:53:02 +00:00
Chris Lattner
6f502da274 add the vperm instruction 
llvm-svn: 26883
 2006-03-20 01:00:56 +00:00
Chris Lattner
ada41aad4d Add a note about the MUL -> FMADD vector bug. 
llvm-svn: 26874
 2006-03-19 22:08:08 +00:00
Chris Lattner
789570bafb Custom lower SCALAR_TO_VECTOR into lve*x. 
llvm-svn: 26868
 2006-03-19 06:55:52 +00:00
Chris Lattner
80f9f7138a PPC doesn't have SCALAR_TO_VECTOR 
llvm-svn: 26865
 2006-03-19 06:17:19 +00:00
Chris Lattner
89bc332152 add support for vector undef 
llvm-svn: 26863
 2006-03-19 06:10:09 +00:00
Chris Lattner
a9b4a2ab99 minor fixes 
llvm-svn: 26857
 2006-03-19 05:43:01 +00:00
Chris Lattner
d3910ca755 notes 
llvm-svn: 26856
 2006-03-19 05:33:30 +00:00
Chris Lattner
b46a4c28ad we don't use lmw/stmw. When we want them they are easy enough to add 
llvm-svn: 26853
 2006-03-19 04:33:37 +00:00
Chris Lattner
1bd0aaf2b8 rename these nodes 
llvm-svn: 26848
 2006-03-19 01:13:28 +00:00
Nate Begeman
793c8136ae Fix subfic to match subc by default instead of sub so that it is correctly 
cost-modeled as producing a flag.  This fixes the test I just added for neg

llvm-svn: 26835
 2006-03-17 22:41:37 +00:00
Nate Begeman
42736d46b2 Remove BRTWOWAY* 
Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814
 2006-03-17 01:40:33 +00:00
Chris Lattner
87dbd49cbe remove dead variable 
llvm-svn: 26813
 2006-03-16 23:52:08 +00:00
Nate Begeman
63c4456867 Notes on how to kill the eeevil brtwoway, and make ppc branch selector 
more target independant, generate better code, and be less conservative.

llvm-svn: 26809
 2006-03-16 22:37:48 +00:00
Chris Lattner
f2008cb73b Strangely, calls clobber call-clobbered vector regs. Whodathoughtit? 
llvm-svn: 26808
 2006-03-16 22:35:59 +00:00
Chris Lattner
8a756c5171 add a note 
llvm-svn: 26807
 2006-03-16 22:25:55 +00:00
Chris Lattner
57773fdac1 teach the ppc backend how to spill/reload vector regs 
llvm-svn: 26806
 2006-03-16 22:24:02 +00:00
Chris Lattner
661ee5d3c1 add callee saved vector regs 
llvm-svn: 26805
 2006-03-16 22:07:06 +00:00
Evan Cheng
cad75d9f0c Added a way for TargetLowering to specify what values can be used as the 
scale component of the target addressing mode.

llvm-svn: 26802
 2006-03-16 21:47:42 +00:00
Chris Lattner
7f5361757b in functions that use a lot of callee saved regs, this can be more than 
5 instructions away.

llvm-svn: 26801
 2006-03-16 21:31:45 +00:00
Chris Lattner
bf153651b1 Add support for copying registers. still needed: spilling and reloading them 
llvm-svn: 26800
 2006-03-16 20:03:58 +00:00
Nate Begeman
cbca1b3d14 Another case we could do better on. 
llvm-svn: 26795
 2006-03-16 18:50:44 +00:00
Chris Lattner
b5d0896994 Save/restore VRSAVE once per function, not once per block. 
llvm-svn: 26793
 2006-03-16 18:25:23 +00:00
Nate Begeman
e371cb595a Update scheduling info for vrsave instruction 
llvm-svn: 26776
 2006-03-15 05:25:05 +00:00
Chris Lattner
392087f5bd Fix an off by one error that caused PPC LLC failures last night. 
llvm-svn: 26758
 2006-03-14 17:56:49 +00:00
Evan Cheng
ae7469b2c5 PPC LSR pass should use target lowering hooks. 
llvm-svn: 26743
 2006-03-13 23:56:51 +00:00
Evan Cheng
7ec94f2ff7 Added getTargetLowering() to TargetMachine. Refactored targets to support this. 
llvm-svn: 26742
 2006-03-13 23:20:37 +00:00
Chris Lattner
d0505331d2 For functions that use vector registers, save VRSAVE, mark used 
registers, and update it on entry to each function, then restore it on exit.

This compiles:

void func(vfloat *a, vfloat *b, vfloat *c) {
        *a = *b * *c + *c;
}

to this:

_func:
        mfspr r2, 256
        oris r6, r2, 49152
        mtspr 256, r6
        lvx v0, 0, r5
        lvx v1, 0, r4
        vmaddfp v0, v1, v0, v0
        stvx v0, 0, r3
        mtspr 256, r2
        blr

GCC produces this (which has additional stack accesses):

_func:
        mfspr r0,256
        stw r0,-4(r1)
        oris r0,r0,0xc000
        mtspr 256,r0
        lvx v0,0,r5
        lvx v1,0,r4
        lwz r12,-4(r1)
        vmaddfp v0,v0,v1,v0
        stvx v0,0,r3
        mtspr 256,r12
        blr

llvm-svn: 26733
 2006-03-13 21:52:10 +00:00
Chris Lattner
3aff8e6acf Fix a couple of bugs that broke the alpha tester build 
llvm-svn: 26722
 2006-03-13 05:23:59 +00:00
Chris Lattner
9898674f99 Handle cracked instructions in dispatch group formation. 
llvm-svn: 26721
 2006-03-13 05:20:04 +00:00
Chris Lattner
ba10d4e4ab Mark instructions that are cracked by the PPC970 decoder as such. 
llvm-svn: 26720
 2006-03-13 05:15:10 +00:00
Chris Lattner
a278639f29 Several big changes: 
1. Use flags on the instructions in the .td file to indicate the PPC970 unit
   type instead of a table in the .cpp file.  Much cleaner.
2. Change the hazard recognizer to build d-groups according to the actual
   algorithm used, not my flawed understanding of it.
3. Model "must be in the first slot" and "must be the only instr in a group"
   accurately.

llvm-svn: 26719
 2006-03-12 09:13:49 +00:00
Chris Lattner
19b93158c1 blr is a branch too 
llvm-svn: 26710
 2006-03-11 21:49:49 +00:00
Chris Lattner
2370965e55 teach the JIT to encode vector registers 
llvm-svn: 26697
 2006-03-10 20:19:50 +00:00
Chris Lattner
3f23d22d3f Change the interface for getting a target HazardRecognizer to be more clean. 
llvm-svn: 26608
 2006-03-08 04:25:59 +00:00
Chris Lattner
24aa564456 add a note 
llvm-svn: 26605
 2006-03-08 00:25:47 +00:00
Jim Laskey
91d5ce2531 Use "llvm.metadata" section for debug globals. Filter out these globals in the 
asm printer.

llvm-svn: 26599
 2006-03-07 22:00:35 +00:00
Chris Lattner
27f87a6955 add another missing store. 
llvm-svn: 26595
 2006-03-07 16:26:48 +00:00
Chris Lattner
dfdeec73bc add a couple more load/store instrs, add a newline to the end of file. 
llvm-svn: 26594
 2006-03-07 16:19:46 +00:00
Nate Begeman
a8bc3c0c3c This kinda sorta implements "things that have to lead a dispatch group". 
llvm-svn: 26591
 2006-03-07 08:30:27 +00:00
Chris Lattner
842436586c add some new instructions to the classifier. With this, we correctly insert 
a nop into Freebench/neural, which speeds it up from 136->129s (~5.4%).

llvm-svn: 26590
 2006-03-07 07:14:55 +00:00
Chris Lattner
0cd4bd574c add some comments that describe what we model 
llvm-svn: 26588
 2006-03-07 06:44:19 +00:00
Chris Lattner
4cd6cd499d Implement a very very simple hazard recognizer for LSU rejects and ctr set/read 
flushes

llvm-svn: 26587
 2006-03-07 06:32:48 +00:00
Chris Lattner
ae34bbf56b add a note 
llvm-svn: 26585
 2006-03-07 04:42:59 +00:00
Chris Lattner
af44ead7f3 implement TII::insertNoop 
llvm-svn: 26562
 2006-03-05 23:49:55 +00:00
Chris Lattner
6b0947c277 Copysign needs to be expanded everywhere. Note that Alpha and IA64 should 
implement copysign as a native op if they have it.

llvm-svn: 26541
 2006-03-05 05:08:37 +00:00
Chris Lattner
317021b6c4 Implement CodeGen/PowerPC/or-addressing-mode.ll, which is also PR668. 
llvm-svn: 26450
 2006-03-01 07:14:48 +00:00
Chris Lattner
caec0d887c add a note 
llvm-svn: 26448
 2006-03-01 06:36:20 +00:00
Chris Lattner
137c02aa60 Compile this: 
void foo(float a, int *b) { *b = a; }

to this:

_foo:
        fctiwz f0, f1
        stfiwx f0, 0, r4
        blr

instead of this:

_foo:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        stw r2, 0(r4)
        blr

This implements CodeGen/PowerPC/stfiwx.ll, and also incidentally does the
right thing for GCC bugzilla 26505.

llvm-svn: 26447
 2006-03-01 05:50:56 +00:00
Chris Lattner
6ba976b557 Use a target-specific dag-combine to implement CodeGen/PowerPC/fp-int-fp.ll. 
llvm-svn: 26445
 2006-03-01 04:57:39 +00:00
Evan Cheng
ebe1f272b7 Vector op lowering. 
llvm-svn: 26438
 2006-03-01 01:11:20 +00:00
Chris Lattner
9f70a7924d Add a subtarget feature for the stfiwx instruction. I know the G5 has it, 
but I don't know what other PPC impls do.  If someone could update the proc
table, I would appreciate it :)

llvm-svn: 26421
 2006-02-28 07:08:22 +00:00
Chris Lattner
866634d77f remove implemented item 
llvm-svn: 26418
 2006-02-28 06:36:04 +00:00
Nate Begeman
56a4dafd8d readme updates 
llvm-svn: 26405
 2006-02-27 22:08:36 +00:00
Chris Lattner
bc35137363 Add memory printing support for PPC. Input memory operands now work with 
inline asms! :)

llvm-svn: 26365
 2006-02-24 20:27:40 +00:00
Chris Lattner
3d451516ec Implement selection of inline asm memory operands 
llvm-svn: 26348
 2006-02-24 02:13:12 +00:00
Evan Cheng
2720cd1d7e PPC JIT relocation model should be DynamicNoPIC. 
llvm-svn: 26338
 2006-02-23 22:18:07 +00:00
Chris Lattner
cdbd9d6d4c Implement the PPC inline asm "L" modifier. This allows us to compile: 
long long test(long long X) {
  __asm__("foo %0 %L0 %1 %L1" : "=r"(X): "r"(X));
  return X;
}

to:
        foo r2 r3 r2 r3

llvm-svn: 26333
 2006-02-23 19:31:10 +00:00
Evan Cheng
305141c1ba - Added option -relocation-model to set relocation model. Valid values include static, pic, 
dynamic-no-pic, and default.
PPC and x86 default is dynamic-no-pic for Darwin, pic for others.
- Removed options -enable-pic and -ppc-static.

llvm-svn: 26315
 2006-02-22 20:19:42 +00:00
Jim Laskey
b62a583c99 Coordinate activities with llvm-gcc4 and dwarf. 
llvm-svn: 26314
 2006-02-22 19:02:11 +00:00
Chris Lattner
6bb2c3e9cd split register class handling from explicit physreg handling. 
llvm-svn: 26308
 2006-02-22 00:56:39 +00:00
Chris Lattner
a124432746 Updates to match change of getRegForInlineAsmConstraint prototype 
llvm-svn: 26305
 2006-02-21 23:11:00 +00:00
Evan Cheng
c4cda2b89a Moved PICEnabled to include/llvm/Target/TargetOptions.h 
llvm-svn: 26272
 2006-02-18 00:08:58 +00:00
Nate Begeman
9c0ab71f4a kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC 
and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.

llvm-svn: 26255
 2006-02-17 05:43:56 +00:00
Evan Cheng
131901cbb8 If the false case is the current basic block, then this is a self loop. 
We do not want to emit "Loop: ... brcond Out; br Loop", as it adds an extra
instruction in the loop.  Instead, invert the condition and emit
"Loop: ... br!cond Loop; br Out.

Generalize the fix by moving it from PPCDAGToDAGISel to SelectionDAGLowering.

llvm-svn: 26231
 2006-02-16 08:27:56 +00:00
Chris Lattner
af26f481e9 If we have zero initialized data with external linkage, use .zerofill to 
emit it (instead of .space), saving a bit of space in the .o file.

For example:
int foo[100];
int bar[100] = {};

when compiled with C++ or -fno-common results in shrinkage from 1160 to 360
bytes of space.  The X86 backend can also do this on darwin.

llvm-svn: 26185
 2006-02-14 22:18:23 +00:00
Chris Lattner
02f3db9781 Make sure that weak functions are aligned properly 
llvm-svn: 26181
 2006-02-14 20:42:33 +00:00
Chris Lattner
9db5a1fd19 Switch to using getCALLSEQ_START instead of using our own creation calls 
llvm-svn: 26142
 2006-02-13 08:55:29 +00:00
Nate Begeman
7261b82dd7 Add missing patterns for andi. and andis., fixing test/Regression/CodeGen/ 
PowerPC/and-imm.ll

llvm-svn: 26136
 2006-02-12 09:09:52 +00:00
Evan Cheng
6bd0f9c4ba Match getTargetNode() changes (now return SDNode* instead of SDOperand). 
llvm-svn: 26085
 2006-02-09 07:17:49 +00:00
Evan Cheng
521e5a1bfe Change Select() from 
SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067
 2006-02-09 00:37:58 +00:00
Chris Lattner
2e1a495967 Darwin doesn't support #APP/#NO_APP 
llvm-svn: 26066
 2006-02-08 23:42:22 +00:00
Chris Lattner
47ef931412 Rename BSel -> PPCBSel for the benefit of doxygen users. 
Move the methods out of line.
Remove unused Debug.h stuff.
Teach getNumBytesForInstruction to know the size of an inline asm.

llvm-svn: 26064
 2006-02-08 19:33:26 +00:00
Chris Lattner
86d1dcf613 Emit the 'mr' pseudoop for easier reading. 
llvm-svn: 26053
 2006-02-08 06:56:40 +00:00
Chris Lattner
881c8c12ff Move emails from nate into public places 
llvm-svn: 26051
 2006-02-08 06:43:51 +00:00
Chris Lattner
abaa15898f Implement getConstraintType for PPC. 
llvm-svn: 26042
 2006-02-07 20:16:30 +00:00
Chris Lattner
50af3c6eb7 Add the simple PPC integer constraints 
llvm-svn: 26027
 2006-02-07 00:47:13 +00:00
Chris Lattner
b6fae6bad7 Change prototype 
llvm-svn: 26022
 2006-02-06 22:18:19 +00:00
Jim Laskey
62908083eb We seem to have settled to __DWARF for section name. 
llvm-svn: 26015
 2006-02-06 14:16:15 +00:00
Evan Cheng
9fb67ea859 Complex pattern isel code shouldn't select nodes. 
llvm-svn: 26010
 2006-02-05 08:45:01 +00:00
Evan Cheng
fb902782e8 Use SelectRoot() as entry of any tblgen based isel. 
llvm-svn: 25997
 2006-02-05 06:46:41 +00:00
Chris Lattner
59378e7675 add a note 
llvm-svn: 25984
 2006-02-05 05:27:35 +00:00
Chris Lattner
085a324bfc Use the asmprinter to find out what the preferred alignment of a global is. 
This patch speeds up 172.mgrid from 31.81s to 11.39s on darwin/ppc.
Many many thanks to Nate for tracking down the root cause of the issue.

llvm-svn: 25979
 2006-02-05 01:30:45 +00:00
Nate Begeman
ba19f3f93c Remove some stuff that now works 
llvm-svn: 25963
 2006-02-04 07:29:35 +00:00
Chris Lattner
393e9d10dd add a note 
llvm-svn: 25944
 2006-02-03 22:06:45 +00:00
Chris Lattner
172cf85d48 remove some target-indep and implemented notes 
llvm-svn: 25930
 2006-02-03 06:22:11 +00:00
Nate Begeman
85f3c9f566 Flesh out a couple of the items in the README 
llvm-svn: 25928
 2006-02-03 05:17:06 +00:00
Chris Lattner
06f54e7cb3 Add a note 
llvm-svn: 25921
 2006-02-03 01:49:49 +00:00
Chris Lattner
66d0341e73 update a note 
llvm-svn: 25918
 2006-02-02 23:50:22 +00:00
Nate Begeman
09bdfffaa6 add 64b gpr store to the possible list of isStoreToStackSlot opcodes. 
llvm-svn: 25916
 2006-02-02 21:07:50 +00:00
Chris Lattner
8337a1050d implement isStoreToStackSlot for PPC 
llvm-svn: 25914
 2006-02-02 20:16:12 +00:00
Chris Lattner
15cb732cd7 Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,a far more logical place. Other methods should also be moved if anyoneis interested. :) 
llvm-svn: 25913
 2006-02-02 20:12:32 +00:00
Chris Lattner
c434ee61a3 new example 
llvm-svn: 25903
 2006-02-02 07:37:11 +00:00
Nate Begeman
dd4acf9710 Update the README 
llvm-svn: 25902
 2006-02-02 07:27:56 +00:00
Chris Lattner
d202c4d3cc add a method 
llvm-svn: 25884
 2006-02-01 22:38:46 +00:00
Chris Lattner
821f93a659 add a note 
llvm-svn: 25876
 2006-02-01 17:54:23 +00:00
Nate Begeman
0be60963bd Fix some of the stuff in the PPC README file, and clean up legalization 
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.

llvm-svn: 25875
 2006-02-01 07:19:44 +00:00
Chris Lattner
c270dd87a9 another testcase. 
llvm-svn: 25862
 2006-02-01 00:28:12 +00:00
Evan Cheng
f115c17f23 Allow the specification of explicit alignments for constant pool entries. 
llvm-svn: 25855
 2006-01-31 22:23:14 +00:00
Chris Lattner
892fe31362 add info about the inline asm register constraints for PPC 
llvm-svn: 25853
 2006-01-31 19:20:21 +00:00
Nate Begeman
7a83bb4285 Codegen 
bool %test(int %X) {
  %Y = seteq int %X, 13
  ret bool %Y
}

as

_test:
        addi r2, r3, -13
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

rather than

_test:
        cmpwi cr7, r3, 13
        mfcr r2
        rlwinm r3, r2, 31, 31, 31
        blr

This has very little effect on most code, but speeds up analyzer 23% and
mason 11%

llvm-svn: 25848
 2006-01-31 08:17:29 +00:00
Chris Lattner
186b5f0887 example nate pointed out 
llvm-svn: 25841
 2006-01-31 07:16:34 +00:00
Chris Lattner
830b1ad8cf add the 'lucas' optimization 
llvm-svn: 25830
 2006-01-31 02:55:28 +00:00
Chris Lattner
2ab7f21d20 Functions that are lazily streamed in from the .bc file are *not* external. 
This fixes llvm-test/SingleSource/UnitTests/2006-01-29-SimpleIndirectCall.c
and PR704

llvm-svn: 25793
 2006-01-29 20:49:17 +00:00
Chris Lattner
4c6384a412 Now that OpActions is big enough, we can specify actions for vector types 
llvm-svn: 25784
 2006-01-29 08:41:37 +00:00
Chris Lattner
00e9ba5526 disable this for now 
llvm-svn: 25778
 2006-01-29 07:31:33 +00:00
Chris Lattner
6c4173145e Request expansion of ConstantVec nodes. 
llvm-svn: 25773
 2006-01-29 06:32:58 +00:00
Chris Lattner
5f0a3df176 Targets all now request ConstantFP to be legalized into TargetConstantFP. 
'fpimm' in .td files is now TargetConstantFP.

llvm-svn: 25771
 2006-01-29 06:26:08 +00:00
Chris Lattner
d2eb15f467 Fix a bug in my elimination of ISD::CALL this morning. PPC now has to 
provide the expansion for i64 calls itself

llvm-svn: 25735
 2006-01-28 07:33:03 +00:00
Chris Lattner
170727421b add a note about how we should implement this FIXME from the legalizer: 
// FIXME: revisit this when we have some kind of mechanism by which targets
    // can decided legality of vector constants, of which there may be very
    // many.

llvm-svn: 25733
 2006-01-28 05:40:47 +00:00
Nate Begeman
a46156da35 Add a couple more things to the readme. 
llvm-svn: 25724
 2006-01-28 01:22:10 +00:00
Chris Lattner
6a5d2450a3 Use PPCISD::CALL instead of ISD::CALL 
llvm-svn: 25717
 2006-01-27 23:34:02 +00:00
Chris Lattner
59a4f3f637 Make llvm.frame/returnaddr not crash on ppc 
llvm-svn: 25710
 2006-01-27 22:25:06 +00:00
Nate Begeman
d2c6fbef4a Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for 
the same functionality.  This addresses another piece of bug 680.  Next,
on to fixing Alpha VAARG, which I broke last time.

llvm-svn: 25696
 2006-01-27 21:09:22 +00:00
Evan Cheng
77885c204d Subtarget feature can now set any variable to any value 
llvm-svn: 25678
 2006-01-27 08:09:42 +00:00
Chris Lattner
20d4194a0d PHI and INLINEASM are now built-in instructions provided by Target.td 
llvm-svn: 25674
 2006-01-27 01:46:15 +00:00
Jim Laskey
583aae3110 Set up MachineDebugInfo to scan for debug information form "llvm.db"g globals. 
Global Variable information is now pulled from "llvm.dbg.globals"

llvm-svn: 25655
 2006-01-26 20:21:46 +00:00
Evan Cheng
7da6daadc7 Set SchedulingForLatency to be the default scheduling preference for all. 
llvm-svn: 25607
 2006-01-25 18:52:42 +00:00
Nate Begeman
c29fac7fce First part of bug 680: 
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.

llvm-svn: 25606
 2006-01-25 18:21:52 +00:00
Evan Cheng
c368fb710f Default scheduling preference is SchedulingForLatency. 
llvm-svn: 25603
 2006-01-25 09:15:54 +00:00
Jim Laskey
18ba7ce7b3 Crude Dwarf global variable debugging. 
llvm-svn: 25569
 2006-01-24 00:49:18 +00:00
Chris Lattner
aafc339b4e Add explicit #includes of <iostream> 
llvm-svn: 25515
 2006-01-22 23:41:00 +00:00
Chris Lattner
adff158fbd Add explicit #includes of <iostream> 
llvm-svn: 25509
 2006-01-22 22:53:01 +00:00
Chris Lattner
1ecabc5a6f trivial formatting improvement: don't insert extra blank lines between .comm 
vars.

llvm-svn: 25492
 2006-01-21 01:35:26 +00:00
Chris Lattner
60bc56e930 add a note 
llvm-svn: 25439
 2006-01-19 02:09:38 +00:00
Chris Lattner
23da2dc2ac Don't assert on 'select_cc SETUO' 
llvm-svn: 25423
 2006-01-18 19:42:35 +00:00
Chris Lattner
00a483f966 fix out of date comment 
llvm-svn: 25422
 2006-01-18 19:37:44 +00:00
Chris Lattner
b0d3080ca8 Fix Regression/CodeGen/PowerPC/2006-01-18-InvalidBranchOpcodeAssert.ll 
llvm-svn: 25421
 2006-01-18 19:35:21 +00:00
Jim Laskey
6b25a4e659 Added minimum Dwarf aranges. Cleaned up some section headers. Line number 
support now works in gdb.

llvm-svn: 25417
 2006-01-18 16:54:26 +00:00
Jim Laskey
52d9832e70 Add frame work for additional dwarf sections. Comments will improve as code 
is added.

llvm-svn: 25410
 2006-01-17 20:41:40 +00:00
Jim Laskey
0c4202b0ba Adding basic support for Dwarf line number debug information. 
I promise to keep future commits smaller.

llvm-svn: 25396
 2006-01-17 17:31:53 +00:00
Chris Lattner
88572bb5c4 add notes from my *other* email acct. 
llvm-svn: 25362
 2006-01-16 17:58:54 +00:00
Chris Lattner
62ab456f6b transfer some notes from my email to somewhere useful. 
llvm-svn: 25361
 2006-01-16 17:53:00 +00:00
Chris Lattner
4d2c4cb7a7 Use the default impl of DYNAMIC_STACKALLOC, allowing us to delete some code. 
llvm-svn: 25334
 2006-01-15 09:02:48 +00:00
Nate Begeman
85b2dc0c4e bswap implementation 
llvm-svn: 25312
 2006-01-14 03:14:10 +00:00
Nate Begeman
10813e4f97 Remove some redundant stuff out of the readme. 
llvm-svn: 25308
 2006-01-14 01:24:22 +00:00
Chris Lattner
c615ed65ac implement stacksave/stackrestore on PPC 
llvm-svn: 25277
 2006-01-13 17:52:03 +00:00
Chris Lattner
80fed2d66e expand unsupported stacksave/stackrestore nodes 
llvm-svn: 25272
 2006-01-13 02:42:53 +00:00
Chris Lattner
29e1825fd3 ahem :) 
llvm-svn: 25239
 2006-01-12 02:05:36 +00:00
Chris Lattner
452a84e2b6 these cases are autogenerated 
llvm-svn: 25238
 2006-01-12 02:01:45 +00:00
Chris Lattner
861897037b remove dead code 
llvm-svn: 25237
 2006-01-12 01:54:15 +00:00
Chris Lattner
e88b032f85 Goodbye PPC pattern isel. You have served us well, but it is now time for 
you to ride off into the sunset.

llvm-svn: 25236
 2006-01-12 01:46:07 +00:00
Chris Lattner
c8527856c1 Fix an off-by-one error that Nate's eagle eyes caught 
llvm-svn: 25231
 2006-01-11 23:16:29 +00:00
Chris Lattner
5633c9bccf Use the auto-insert BuildMI constructor to avoid an explicit insert. No 
functionality change, just code cleanup.

llvm-svn: 25230
 2006-01-11 23:07:57 +00:00
Chris Lattner
2c8238e494 If a function has a non-zero sized frame, use an add to adjust the stack 
pointer in the epilog, not a load.

llvm-svn: 25229
 2006-01-11 23:03:54 +00:00
Nate Begeman
cff96008ac Add bswap, rotl, and rotr nodes 
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl

Targets should add rotl/rotr patterns if they have them

llvm-svn: 25222
 2006-01-11 21:21:00 +00:00
Chris Lattner
5a59c88c17 Fix calls that need to store values in stack slots, to not copy the stack 
pointer.  This allows us to emit stuff like this:

        li r10, 0
        stw r10, 56(r1)
        or r3, r10, r10
        or r4, r10, r10
        or r5, r10, r10
        or r6, r10, r10
        or r7, r10, r10
        or r8, r10, r10
        or r9, r10, r10
        bl L_bar$stub

instead of this:

        or r2, r1, r1     ;; Extraneous copy.
        li r10, 0
        stw r10, 56(r2)
        or r3, r10, r10
        or r4, r10, r10
        or r5, r10, r10
        or r6, r10, r10
        or r7, r10, r10
        or r8, r10, r10
        or r9, r10, r10
        bl L_bar$stub

wowness.

llvm-svn: 25221
 2006-01-11 19:55:07 +00:00
Chris Lattner
6b8fb2e9bc Dead FP arguments still use an incoming FP reg. This fixes 
Regression/CodeGen/PowerPC/2006-01-11-darwin-fp-argument.ll, which was
distilled from a miscompilation in 252.eon.

llvm-svn: 25217
 2006-01-11 18:21:25 +00:00
Nate Begeman
7ed9b8b287 Remove a comment that no longer applies. 
llvm-svn: 25167
 2006-01-10 00:15:59 +00:00
Chris Lattner
a59d6394d2 Give PPCISD:: nodes legible names in dumps. 
llvm-svn: 25166
 2006-01-09 23:52:17 +00:00
Chris Lattner
95443534bf add ret void support back 
llvm-svn: 25164
 2006-01-09 23:20:37 +00:00
Evan Cheng
e720cfd690 New DAG node properties SNDPInFlag, SNDPOutFlag, and SNDPOptInFlag to replace 
hasInFlag, hasOutFlag.

llvm-svn: 25155
 2006-01-09 18:28:21 +00:00
Chris Lattner
00d77e22d4 Fix the PPC JIT failures last night, which were due to mishandling of linkonce globals 
llvm-svn: 25141
 2006-01-07 06:22:16 +00:00
Chris Lattner
d583872b9e linkonce symbols have an extra indirection, just like weak ones do. This fixes 
Prolangs-C++/family and Prolangs-C++/primes.

llvm-svn: 25119
 2006-01-06 01:04:03 +00:00
Chris Lattner
5488b43338 Fix a compile crash building MultiSource/Applications/d with the new front-end. 
The PPC backend was generating random shift counts in this case, due to an
uninitialized variable.

llvm-svn: 25114
 2006-01-05 18:32:49 +00:00
Jim Laskey
41b3ee3c4f Had expand logic backward. 
llvm-svn: 25105
 2006-01-05 01:47:43 +00:00
Jim Laskey
5eddaee9f3 Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.

llvm-svn: 25104
 2006-01-05 01:25:28 +00:00
Jim Laskey
61138e28ff Applied some recommend changes from sabre. The dominate one beginning "let the 
pass manager do it's thing."  Fixes crash when compiling -g files and suppresses
dwarf statements if no debug info is present.

llvm-svn: 25100
 2006-01-04 22:28:25 +00:00
Jim Laskey
897ad8ddb7 Add unique id to debug location for debug label use (work in progress.) 
llvm-svn: 25096
 2006-01-04 15:04:11 +00:00
Jim Laskey
62b29812a6 Tie dwarf generation to darwin assembler. 
llvm-svn: 25093
 2006-01-04 13:52:30 +00:00
Nate Begeman
ec7c28a28c Add support for generating v4i32 altivec code 
llvm-svn: 25046
 2005-12-30 00:12:56 +00:00
Nate Begeman
e1fdcf5a20 Remove a fixme 
llvm-svn: 25045
 2005-12-30 00:11:07 +00:00
Evan Cheng
231b11ba87 Added field noResults to Instruction. 
Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.

llvm-svn: 25017
 2005-12-26 09:11:45 +00:00
Nate Begeman
96c7e22231 Fix one of the things in the todo file, and get a bit closer to folding 
constant offsets from statics into the address arithmetic.

llvm-svn: 24999
 2005-12-24 01:00:15 +00:00
Evan Cheng
d87688fe72 * Removed the use of FLAG. Now use hasFlagIn and hasFlagOut instead. 
* Added a pseudo instruction (for each target) that represent "return void".
  This is a workaround for lack of optional flag operand (return void is not
  lowered so it does not have a flag operand.)

llvm-svn: 24997
 2005-12-23 22:14:32 +00:00
Chris Lattner
8b2bd265f4 make sure bit_converts are expanded 
llvm-svn: 24978
 2005-12-23 05:13:35 +00:00
Chris Lattner
3c4a3dd86e Simplify some code by using BIT_CONVERT 
llvm-svn: 24974
 2005-12-23 00:59:59 +00:00
Chris Lattner
73f38507d9 remove dead code 
llvm-svn: 24965
 2005-12-22 21:16:08 +00:00
Chris Lattner
8c2622a14e fix handling of weak linkage 
llvm-svn: 24964
 2005-12-22 21:15:17 +00:00
Chris Lattner
f7ed832fcf move some random notes out of my email into someplace useful 
llvm-svn: 24956
 2005-12-22 17:19:28 +00:00
Evan Cheng
e458553c73 Bye bye HACKTROCITY. 
llvm-svn: 24935
 2005-12-22 02:26:21 +00:00
Evan Cheng
05ad906ccf Flip the meaning of FPContractions to reflect Requires<[]> change. 
llvm-svn: 24884
 2005-12-20 20:08:53 +00:00
Nate Begeman
a114534620 Pattern-match return. Includes gross hack! 
llvm-svn: 24874
 2005-12-20 00:26:01 +00:00
Nate Begeman
d4562971b3 Fix a couple of the FIXMEs, thanks to suggestion from Chris. This allows 
us to load and store vectors directly at a pointer (offset of zero) by
using r0 as the base register.  This also requires some asm printer work
to satisfy the darwin assembler.

For
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = add <4 x float> %tmp1, %tmp1
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

We now produce:
_foo:
        lvx v0, 0, r3
        vaddfp v0, v0, v0
        stvx v0, 0, r3
        blr

Instead of:
_foo:
        li r2, 0
        lvx v0, r2, r3
        vaddfp v0, v0, v0
        stvx v0, r2, r3
        blr

llvm-svn: 24872
 2005-12-19 23:40:42 +00:00
Nate Begeman
9c7dce88b5 Convert load/store over to being pattern matched 
llvm-svn: 24871
 2005-12-19 23:25:09 +00:00
Chris Lattner
0124442495 This is handled by the autogen'd code 
llvm-svn: 24834
 2005-12-18 21:06:11 +00:00
Jim Laskey
37957b1ad3 Added source file/line correspondence for dwarf (PowerPC only at this point.) 
llvm-svn: 24748
 2005-12-16 22:45:29 +00:00
Chris Lattner
ba98d302be Weak and linkonce global vars should still have a .globl emitted for them 
llvm-svn: 24747
 2005-12-16 21:46:14 +00:00
Nate Begeman
69da94a1b9 Add a second vector type to the VRRC register class, and fix some patterns 
so that tablegen can infer all types.

llvm-svn: 24746
 2005-12-16 09:19:13 +00:00
Chris Lattner
890fd4e66c Update the darwin handling of linkonce & weak functions and GV stubs. This 
should work in all permutations.

llvm-svn: 24728
 2005-12-16 00:22:14 +00:00
Nate Begeman
f5ac708070 Remove a now unused statistic. 
llvm-svn: 24720
 2005-12-14 22:56:16 +00:00
Nate Begeman
fe7a3f28e3 Use the new predicate support that Evan Cheng added to remove some code 
from the DAGToDAG cpp file.  This adds pattern support for vector and
scalar fma, which passes test/Regression/CodeGen/PowerPC/fma.ll, and
does the right thing in the presence of -disable-excess-fp-precision.

Allows us to match:
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = mul <4 x float> %tmp1, %tmp1
  %tmp3 = add <4 x float> %tmp2, %tmp1
  store <4 x float> %tmp3, <4 x float> *%a
  ret void
}

As:

_foo:
        li r2, 0
        lvx v0, r2, r3
        vmaddfp v0, v0, v0, v0
        stvx v0, r2, r3
        blr

Or, with llc -disable-excess-fp-precision,

_foo:
        li r2, 0
        lvx v0, r2, r3
        vxor v1, v1, v1
        vmaddfp v1, v0, v0, v1
        vaddfp v0, v1, v0
        stvx v0, r2, r3
        blr

llvm-svn: 24719
 2005-12-14 22:54:33 +00:00
Evan Cheng
fbc29bb3dd Added predicate !NoExcessFPPrecision to FMADD, FMADDS, FMSUB, and FMSUBS. 
llvm-svn: 24716
 2005-12-14 22:07:12 +00:00
Nate Begeman
09855eafd1 Add support for fmul node of type v4f32. 
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = mul <4 x float> %tmp1, %tmp1
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

Is selected to:

_foo:
        li r2, 0
        lvx v0, r2, r3
        vxor v1, v1, v1
        vmaddfp v0, v0, v0, v1
        stvx v0, r2, r3
        blr

llvm-svn: 24701
 2005-12-14 00:34:09 +00:00
Nate Begeman
1700fe3f71 Prepare support for AltiVec multiply, divide, and sqrt. 
llvm-svn: 24700
 2005-12-13 22:55:22 +00:00
Chris Lattner
95555853ad Use the shared asmprinter code for printing special llvm globals 
llvm-svn: 24695
 2005-12-13 06:32:50 +00:00
Chris Lattner
1468c52811 reindent a loop, unswitch a loop. No functionality changes 
llvm-svn: 24692
 2005-12-13 04:33:58 +00:00
Chris Lattner
6d4db7c732 Remove type casts that are no longer needed 
llvm-svn: 24661
 2005-12-11 07:45:47 +00:00
Chris Lattner
d27c96f723 Fix the JIT failures from last night. 
llvm-svn: 24659
 2005-12-11 07:37:41 +00:00
Nate Begeman
a0e26b25f4 Add support for TargetConstantPool nodes to the dag isel emitter, and use 
them in the PPC backend, to simplify some logic out of Select and
SelectAddr.

llvm-svn: 24657
 2005-12-10 02:36:00 +00:00
Nate Begeman
5c6a84b5fc Add support patterns to many load and store instructions which will 
hopefully use patterns in the near future.

llvm-svn: 24651
 2005-12-09 23:54:18 +00:00
Chris Lattner
cdeeb94947 Teach the PPC backend about the ctor and dtor list when not using __main and 
linking the entire program into one bc file.

llvm-svn: 24645
 2005-12-09 18:24:29 +00:00
Chris Lattner
9d9313e3c1 Add another important case we miss 
llvm-svn: 24639
 2005-12-08 07:13:28 +00:00
Chris Lattner
46ca9774fc Silence another annoying GCC warning 
llvm-svn: 24627
 2005-12-06 20:56:18 +00:00
Chris Lattner
68a0fed879 Use new PPC-specific nodes to represent shifts which require the 6-bit 
amount handling that PPC provides.  These are generated by the lowering code
and prevents the dag combiner from assuming (rightfully) that the shifts
don't only look at 5 bits.  This fixes a miscompilation of crafty with
the new front-end.

llvm-svn: 24615
 2005-12-06 02:10:38 +00:00
Chris Lattner
b2d4850394 Add some explicit type casts so that tblgen knows the type of the shift 
amount, which is not necessarily the same as the type being shifted.

llvm-svn: 24594
 2005-12-05 02:34:05 +00:00
Chris Lattner
e6daa0e5bc The basic fneg cases are already autogen'd 
llvm-svn: 24592
 2005-12-04 19:04:38 +00:00
Chris Lattner
f38170bbd2 Autogen matching code for ADJCALLSTACK[UP|DOWN], thanks to Evan's tblgen 
improvements.

llvm-svn: 24591
 2005-12-04 19:01:59 +00:00
Chris Lattner
a8af34937b Finish moving uncond br over to .td file, remove from .cpp file. 
llvm-svn: 24590
 2005-12-04 18:48:01 +00:00
Chris Lattner
b62b05bde6 Define BR in the .td file now that Evan made tblgen smarter. 
llvm-svn: 24589
 2005-12-04 18:42:54 +00:00
Chris Lattner
046761f312 Make sure these get added into the codegenmap when appropriate 
llvm-svn: 24566
 2005-12-01 18:09:22 +00:00
Nate Begeman
811a41a87c Support multiple ValueTypes per RegisterClass, needed for upcoming vector 
work.  This change has no effect on generated code.

llvm-svn: 24563
 2005-12-01 04:51:06 +00:00
Nate Begeman
5de40afc43 Cosmetic change, better reflects actual values 
llvm-svn: 24562
 2005-12-01 04:48:26 +00:00
Chris Lattner
1b8cb77fea Fix a regression caused by a patch earlier today 
llvm-svn: 24561
 2005-12-01 03:50:19 +00:00
Evan Cheng
363ad8bbc4 Use a getCopyToReg() variant to generate a flaggy CopyToReg node. 
llvm-svn: 24558
 2005-12-01 00:41:50 +00:00
Chris Lattner
06fbfe625c SelectNodeTo now returns N. Use it instead of return N directly. 
llvm-svn: 24549
 2005-11-30 22:53:06 +00:00
Chris Lattner
90a87cc2f1 Fix Regression/CodeGen/PowerPC/2005-11-30-vastart-crash.ll 
llvm-svn: 24547
 2005-11-30 20:40:54 +00:00
Nate Begeman
84be54b731 No longer track value types for asm printer operands, and remove them as 
an argument to every operand printing function.  Requires some slight
tweaks to x86, the only user.

llvm-svn: 24541
 2005-11-30 18:54:35 +00:00
Nate Begeman
31121419c8 First chunk of actually generating vector code for packed types. These 
changes allow us to generate the following code:

_foo:
        li r2, 0
        lvx v0, r2, r3
        vaddfp v0, v0, v0
        stvx v0, r2, r3
        blr

for this llvm:

void %foo(<4 x float>* %a) {
entry:
        %tmp1 = load <4 x float>* %a
        %tmp2 = add <4 x float> %tmp1, %tmp1
        store <4 x float> %tmp2, <4 x float>* %a
        ret void
}

llvm-svn: 24534
 2005-11-30 08:22:07 +00:00
Nate Begeman
ebafe9c6d8 Represent the encoding of the SPR instructions as they actually are, so 
that we can use the correct SPR numbers in the InstrInfo.td file.  This is
necessary to support VRsave.

llvm-svn: 24521
 2005-11-29 22:42:50 +00:00
Nate Begeman
9a781caa20 Hook up one type, v4f32, to the VR RegisterClass for now. 
llvm-svn: 24517
 2005-11-29 08:17:20 +00:00
Nate Begeman
16a1c53abc Add the remainder of the AltiVec 4 x float instructions. Further 
enhancements will be necessary to teach the code generator that since
there is no fmul, it will have to do vmaddfp, adding +0.0.

llvm-svn: 24516
 2005-11-29 08:04:45 +00:00
Chris Lattner
47feb1ecbb No targets support line number info yet. 
llvm-svn: 24513
 2005-11-29 06:16:21 +00:00
Nate Begeman
a1c2df2471 Add the majority of the vector machien value types we expect to support, 
and make a few changes to the legalization machinery to support more than
16 types.

llvm-svn: 24511
 2005-11-29 05:45:29 +00:00
Evan Cheng
c23716c268 Fixed a comment bug: 
createPPCPatternInstructionSelector -> createPPCISelPattern

llvm-svn: 24510
 2005-11-29 04:59:46 +00:00
Chris Lattner
2e375c1847 don't say this is i128, because it isn't yet. Hopefully nate will change 
this to be something sane, but in the mean time it is unused, so safe to
make something bogus.

llvm-svn: 24504
 2005-11-29 00:41:40 +00:00
Nate Begeman
84cac055ad Small tweaks noticed while on the plane. 
llvm-svn: 24492
 2005-11-26 22:39:34 +00:00
Nate Begeman
687456dd7a Some first bits of AltiVec stuff: Instruction Formats, Encodings, and 
Registers.  Apologies to Jim if the scheduling info so far isn't accurate.

There's a few more things like VRsave support that need to be finished up
in my local tree before I can commit code that Does The Right Thing for
turning 4 x float into the various altivec packed float instructions.

llvm-svn: 24489
 2005-11-23 05:29:52 +00:00
Chris Lattner
a5ec3d8e81 Use generic constant pool emission code in the AsmPrinter class. 
llvm-svn: 24465
 2005-11-21 08:26:15 +00:00
Chris Lattner
31197fa019 Use the FunctionNumber provided by the AsmPrinter class 
llvm-svn: 24462
 2005-11-21 08:14:07 +00:00
Chris Lattner
d7ae8bcf66 Use CommentString where possible, fix a bug where aix mode wouldn't assemble 
due to basic blocks being misnamed.

llvm-svn: 24459
 2005-11-21 08:02:41 +00:00
Chris Lattner
f3af64b478 unify the darwin and aix constant pool printers 
llvm-svn: 24458
 2005-11-21 07:57:37 +00:00
Chris Lattner
3e2c6c1d15 Adjust to capitalized AsmPrinter method names 
llvm-svn: 24456
 2005-11-21 07:51:23 +00:00
Chris Lattner
b4955ba62b use PrivateGlobalPrefix for basic blocks 
llvm-svn: 24453
 2005-11-21 07:41:05 +00:00
Chris Lattner
bc917fe899 This is now implemented in common codegen code 
llvm-svn: 24446
 2005-11-21 07:06:58 +00:00
Chris Lattner
78bb97af59 set PrivateGlobalPrefix on darwin, use it when printing out CP references 
llvm-svn: 24441
 2005-11-21 06:47:58 +00:00
Chris Lattner
da306413bb only use dyld stubs if not in ppc-static mode. This completes support for 
non-static codegen.

llvm-svn: 24403
 2005-11-17 19:40:30 +00:00
Chris Lattner
25e065cc46 refactor call operand handling to eliminate special cases from printOp. 
llvm-svn: 24401
 2005-11-17 19:25:59 +00:00
Chris Lattner
02522dc4e6 disentangle call operands from branch operands a bit 
llvm-svn: 24400
 2005-11-17 19:16:08 +00:00
Chris Lattner
b6af6ea0d4 add an option to generate completely non-pic code, corresponding to what 
gcc -static produces on PPC.  This is used for building kexts and other things.

With this, materializing the address of a global looks like:

        lis r2, ha16(L_H$non_lazy_ptr)
        la r3, lo16(L_H$non_lazy_ptr)(r2)

we're still emitting stubs for functions, which is wrong.  That is next.

llvm-svn: 24399
 2005-11-17 18:55:48 +00:00
Chris Lattner
7666d8192c Fix a bug that resistor on IRC hit where we tried to create token factor 
nodes of load results, not of their chain results.

llvm-svn: 24398
 2005-11-17 18:30:17 +00:00
Chris Lattner
4581404290 Enable global address legalization, fixing a todo and allowing the removal 
of some code.  This exposes the implicit load from the stubs to the DAG, allowing
them to be optimized by the dag combiner.  It also moves darwin specific stuff
out of the isel into the legalizer, and allows more to be moved to the .td file.

llvm-svn: 24397
 2005-11-17 18:26:56 +00:00
Chris Lattner
e3c5f4c9d2 Teach the selector to fold lo(g) into load instruction immediate fields 
llvm-svn: 24396
 2005-11-17 18:02:16 +00:00
Chris Lattner
92a1367bed Generate LA and ADDIS when possible. 
llvm-svn: 24395
 2005-11-17 17:52:01 +00:00
Chris Lattner
c46c672eba Use the right accessor to create this node 
llvm-svn: 24394
 2005-11-17 17:51:38 +00:00
Chris Lattner
8d04987a39 Add an initial hack at legalizing GlobalAddress into the appropriate nodes 
on Darwin to remove smarts from the isel.  This is currently disabled by
default (uncomment setOperationAction(ISD::GlobalAddress to enable it).
tblgen needs to become smarter about tglobaladdr nodes and bigger patterns
needed to be added to the .td file.  However, we can currently emit stuff like
this:  :)

        li r2, lo16(L_x$non_lazy_ptr)
        lis r3, ha16(L_x$non_lazy_ptr)
        lwzx r2, r3, r2

The obvious improvements will follow.

llvm-svn: 24390
 2005-11-17 07:30:41 +00:00
Chris Lattner
5f605f3c12 LI could theoretically be used for the lo-part of a global address, just like 
lis can be used for the high part.

llvm-svn: 24388
 2005-11-17 07:04:43 +00:00