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4019 Commits

Author SHA1 Message Date
Chris Lattner
6bc2dc7b2c hide this option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21959 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 19:44:21 +00:00
Chris Lattner
adf6a965a3 Add an isTailCall flag to LowerCallTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21958 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 18:50:42 +00:00
Chris Lattner
1be4811d34 add 'ret imm' instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21945 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 17:56:48 +00:00
Chris Lattner
32f3cf612e Realize that we don't support fmod directly, fixing CodeGen/Generic/print-arith-fp.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21939 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 16:20:22 +00:00
Chris Lattner
63602fb868 Do not CopyFromReg physregs for live-in values. Instead, create a vreg for 
each live in, and copy the regs from the vregs.  As the very first thing we
do in the function, insert copies from the pregs to the vregs.  This fixes
problems where the token chain of CopyFromReg was not enough to allow reordering
of the copyfromreg nodes and other unchained nodes (e.g. div, which clobbers
eax on intel).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21932 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-13 07:38:09 +00:00
Chris Lattner
16cd04d26c rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21915 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 23:24:06 +00:00
Chris Lattner
c6f4181923 Add a new -enable-x86-fastcc option that enables passing the first 
two integer values in registers for the fastcc calling conv.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21912 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 23:06:28 +00:00
Chris Lattner
c57f682113 Pass in Calling Convention to use into LowerCallTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21899 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 19:56:45 +00:00
Chris Lattner
6649418598 Enable pattern isel by default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21898 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 19:56:09 +00:00
Chris Lattner
9bce0f92c3 These targets don't like setcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-12 02:06:00 +00:00
Nate Begeman
d7c4a4a6c0 Necessary changes to codegen cttz efficiently on PowerPC 
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21880 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 23:43:56 +00:00
Tanya Lattner
d977095838 Fixed issue that broke ssa. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21878 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 21:45:03 +00:00
Chris Lattner
4548a0ed32 fix some GCC 4 warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21877 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 21:40:40 +00:00
John Criswell
3163e2d9f3 Added support for decomposing constant expressions containing shr and shl 
instructions.
Review of this commit would be greatly appreciated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21876 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 21:16:42 +00:00
Duraid Madina
63bbed536c add the popcount instruction and support this in the isel 
the primary user of this will probably end up being find-first-set-bit/find-
last-set-bit, which i'll get around to...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21860 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 05:16:09 +00:00
Chris Lattner
1f38e5c431 No really IA*64* :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21858 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 05:03:56 +00:00
Chris Lattner
c610d4267f X86 has more than just 32-bit registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21857 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-11 05:00:34 +00:00
Chris Lattner
6415bb4c29 Convert feature of the simple isel over for the pattern isel to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21840 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-10 03:53:18 +00:00
Jeff Cohen
19bb2283e6 Silence some VC++ warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21838 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-10 02:22:38 +00:00
Chris Lattner
966cdfb600 Implement READPORT/WRITEPORT, implementing the last X86 regression tests 
that were failing with the pattern selector.  Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21831 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 21:17:38 +00:00
Chris Lattner
cecd67b432 do not emit illegal instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21830 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 21:06:04 +00:00
Chris Lattner
82c7897f49 Fix the syntax of the i/o instructions, these are obviously unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21829 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 20:49:20 +00:00
Chris Lattner
4e6ce5f9c7 legalize readio/writeio into load/stores, fixing CodeGen/X86/io.llx with 
the pattern isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21828 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 20:37:29 +00:00
Chris Lattner
a0dbf181e0 restore some non-dead code I removed last night breaking double casts to 
uint


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21821 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 18:37:02 +00:00
Chris Lattner
cafb67b250 fold and (shl X, C1), C2 -> rlwinm when possible. Many other cases are possible, 
include and (srl)    and the inverses (shl and) etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21820 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 17:39:48 +00:00
Duraid Madina
8a3042c872 fix and cleanup constmul code a bit, this fixes mediabench/toast and 
probably a couple of other tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21814 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 13:18:34 +00:00
Chris Lattner
a80d2bd89c Wrap long lines, remove dead code that is now handled by legalize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21811 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 05:40:26 +00:00
Chris Lattner
2afa1910d4 Fix FP -> bool casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21810 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 05:33:18 +00:00
Chris Lattner
e3e0f2765a Fix X86/2005-05-08-FPStackifierPHI.ll: ugly gross hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21801 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-09 03:36:39 +00:00
Chris Lattner
50a8a17e65 clean up the CBE output a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21740 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-06 06:58:42 +00:00
Chris Lattner
fe673d9351 add tail marker as a comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21739 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-06 06:53:07 +00:00
Andrew Lenharth
b5884d3116 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21693 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-04 19:25:37 +00:00
Andrew Lenharth
590091975c Well, add support for ct* for 21264 only. 
21164 is broken until expand works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21692 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-04 19:12:09 +00:00
Andrew Lenharth
691ef2ba06 Implement count leading zeros (ctlz), count trailing zeros (cttz), and count 
population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-03 17:19:30 +00:00
Duraid Madina
40c9e6be3e support multiplication by constant negative integers 
this constmul code is still buggy though, so beware. mul by 7427 is currently
broken, for example. will fix it when I get a moment :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21652 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-02 07:27:14 +00:00
Duraid Madina
4bd708d8a6 add support for bools to SELECT, this fixes Prolangs-C/bison from the 
testsuite, however 09-vor is still dead (hopefully for other reasons!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21651 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-02 06:41:13 +00:00
Tanya Lattner
874abe50ac SMS for superblocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21643 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-01 01:27:47 +00:00
Tanya Lattner
be2b84aa9e Added extra constructor for superblocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21642 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-05-01 01:25:53 +00:00
Tanya Lattner
c50156360a Fixed bug in searchPath function for finding nodes between two recurrences. 
Changed dependence analyzer to only use dep distances of 2 or less.
This is experimental.

Changed MSchedGraph to be able to represent more then one BB (first steps).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21641 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 23:07:59 +00:00
Andrew Lenharth
50d91d71a5 I was sure I had thought about this and there was a reason it should work. 
But it is entirely possible I am just crazy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21640 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 14:19:13 +00:00
Chris Lattner
9c9183aef4 Eliminate some random whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21637 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:44:07 +00:00
Chris Lattner
08cae7f519 Doesn't support these nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21634 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:26:56 +00:00
Chris Lattner
17234b7d78 This target doesn't support the FSIN/FCOS/FSQRT nodes yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21633 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:26:06 +00:00
Chris Lattner
c5dcb53bea Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by 
Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21632 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:25:35 +00:00
Chris Lattner
5434b429c8 Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21631 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:12:40 +00:00
Chris Lattner
34f74a6162 Expose an option allowing unsafe math optimizations. Patch contributed by 
Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21630 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-30 04:09:52 +00:00
Chris Lattner
2c56e8a23e Add support for FSQRT node, patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21610 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 22:07:18 +00:00
Chris Lattner
5afc124bdf Add some new X86 instrs, patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21608 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 21:50:05 +00:00
Chris Lattner
3b6b63711e Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21607 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-28 21:48:42 +00:00
Andrew Lenharth
2d86ea21dd Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends. 
(TRUNK)Stores and (EXT|ZEXT|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value*.  Note that if the operation is introduced by the backend, it will still have the operand, but the value* will be null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-27 20:10:01 +00:00
Duraid Madina
85d5f6067d clean up some warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21590 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-27 11:57:39 +00:00
Duraid Madina
4706c0395b constmul bugfix: multiply by 27611 was broken 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21564 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 09:42:50 +00:00
Duraid Madina
3b84bac3ef clean up the code! (oops) lots more cleaning left, however. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21563 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 08:43:47 +00:00
Duraid Madina
b2322561cb * Add code to reduce multiplies by constant integers to shifts, adds and 
subtracts. This is a very rough and nasty implementation of Lefevre's
  "pattern finding" algorithm. With a few small changes though, it should
  end up beating most other methods in common use, regardless of the size
  of the constant (currently, it's often one or two shifts worse)

  TODO: rewrite it so it's not hideously ugly (this is a translation from
        perl, which doesn't help ;)
        bypass most of it for multiplies by 2^n+1
	(eventually) teach it that some combinations of shift+add are
	cheaper than others (e.g. shladd on ia64, scaled adds on alpha)
	get it to try multiple booth encodings in search of the cheapest
	routine
	make it work for negative constants

  This is hacked up as a DAG->DAG transform, so once I clean it up I hope
  it'll be pulled out of here and put somewhere else. The only thing backends
  should really have to worry about for now is where to draw the line
  between using this code vs. going ahead and doing an integer multiply
  anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21560 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-26 07:23:02 +00:00
Reid Spencer
a1aad3b0ed Shut GCC 4.0 up about classes that have virtual functions but a non-virtual 
destructor. Just add the do-nothing virtual destructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21524 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-25 02:55:55 +00:00
Misha Brukman
27177f8c16 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21457 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 18:06:01 +00:00
Misha Brukman
7847fcac17 Convert tabs to spaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21452 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 17:54:37 +00:00
Reid Spencer
18969fbc9f Implement the --enable-targets= feature of the configure script. The make 
variable TARGETS_TO_BUILD is used to determine which targets in lib/Target
are built and which libraries are linked into llc. This effectively
implements the feature. One item remains: disabling targets in the dejagnu
test suite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21450 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 17:20:11 +00:00
Andrew Lenharth
500b4dba32 keep track of max depth stats 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21446 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 13:35:18 +00:00
Tanya Lattner
9f83822565 Updated dependence analyzer. Fixed numerous bugs. Same stage scheduling, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21444 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-22 06:32:48 +00:00
Misha Brukman
0e0a7a45d3 * Remove trailing whitespace 
* Convert tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21426 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:38:14 +00:00
Misha Brukman
b5f662fa03 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21425 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:30:14 +00:00
Misha Brukman
4633f1cde8 Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21424 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 23:13:11 +00:00
Misha Brukman
f976c856fc Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21422 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 22:55:34 +00:00
Chris Lattner
837a521c48 Match another form of eqv 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21413 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 21:09:11 +00:00
Chris Lattner
109026290b Handle stores of global address as stores of immediates. Instead of: 
test1:
        movl $N, %eax
        movl %eax, G
        ret

emit:

test1:
        movl $N, G
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21407 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 19:11:03 +00:00
Chris Lattner
75f354bd7a Handle (store &GV -> mem) as a store immediate. This often occurs for 
printf format strings and other stuff.  Instead of generating this:

        movl $l1__2E_str_1, %eax
        movl %eax, (%esp)

we now emit:

        movl $l1__2E_str_1, (%esp)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21406 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-21 19:03:24 +00:00
Misha Brukman
d6a29a5304 Remove trailing whitespace, patch by Markus Oberhumer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21379 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-20 16:05:03 +00:00
Chris Lattner
f577c6122f Add completely untested support for mtcrf/mfcrf encoding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21353 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:41:52 +00:00
Chris Lattner
14522e31d9 switch over the rest of the formats that use RC to use isDOT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21352 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:21:30 +00:00
Chris Lattner
883059fb58 Convert the XForm instrs and XSForm instruction over to use isDOT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21351 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:15:18 +00:00
Chris Lattner
97a2d42999 Now that the ppc64 and vmx operands of I are always 0, forward substitute 
them away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21350 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:05:22 +00:00
Chris Lattner
a611ab72ca convert over bform and iform instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21349 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 05:00:59 +00:00
Chris Lattner
57226fbc7b Convert over DForm and DSForm instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21348 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:59:28 +00:00
Chris Lattner
e19d0b1130 Convert XLForm and XForm instructions over to use PPC64 when appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21347 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:51:30 +00:00
Chris Lattner
5035cef732 Convert XO XS and XFX forms to use isPPC64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21346 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:40:07 +00:00
Chris Lattner
0bdc6f1fd4 Turn PPC64 and VMX into classes that can be added to instructions instead of 
bits that must be passed up the inheritance hierarchy.  Convert MForm and AForm
instructions over


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21345 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-19 04:32:54 +00:00
Nate Begeman
1cbf3abbb8 Next round of PPC CR optimizations. For the following code: 
int %bar(float %a, float %b, float %c, float %d) {
entry:
    %tmp.1 = setlt float %a, %d
    %tmp.2 = setlt float %b, %d
    %or = or bool %tmp.1, %tmp.2
    %tmp.3 = setgt float %c, %d
    %tmp.4 = or bool %or, %tmp.3
    %tmp.5 = and bool %tmp.4, true
    %retval = cast bool %tmp.5 to int
    ret int %retval
}

We now emit:

_bar:
.LBB_bar_0:     ; entry
        fcmpu cr0, f1, f4
        fcmpu cr1, f2, f4
        cror 0, 0, 4
        fcmpu cr1, f3, f4
        cror 28, 0, 5
        mfcr r2
        rlwinm r3, r2, 29, 31, 31
        blr

Instead of:

_bar:
.LBB_bar_0:     ; entry
        fcmpu cr7, f1, f4
        mfcr r2
        rlwinm r2, r2, 29, 31, 31
        fcmpu cr7, f2, f4
        mfcr r3
        rlwinm r3, r3, 29, 31, 31
        or r2, r2, r3
        fcmpu cr7, f3, f4
        mfcr r3
        rlwinm r3, r3, 30, 31, 31
        or r3, r2, r3
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21321 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-18 07:48:09 +00:00
Nate Begeman
16ac709c63 Change codegen for setcc to read the bit directly out of the condition 
register.  Added support in the .td file for the g5-specific variant
  of cr -> gpr moves that executes faster, but we currently don't
  generate it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21314 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-18 02:43:24 +00:00
Chris Lattner
477d1de9b2 Handle ExternalSymbol operands in the PPC JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21312 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-18 00:46:10 +00:00
Nate Begeman
f8b02949e3 Make pattern isel default for ppc 
Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
  0 == off
  1 == on
  2 == target default


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21309 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-15 22:12:16 +00:00
Andrew Lenharth
1e0d9bda62 fix calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21303 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 17:34:20 +00:00
Andrew Lenharth
3ae1829fe5 a 21264 fix, and fix the operator precidence on an and -> zap check (should fix hundreds of test cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21302 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 16:24:00 +00:00
Duraid Madina
1ce0c015ad print negative 64 bit immediates as negative numbers, makes things a little 
easier on the eyes, not that numbers like 18446744073709541376 are bad or
anything


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 10:08:01 +00:00
Duraid Madina
3eb7150c3e oops, this stopped us turning movl r4=0xFFFFFFFF;; and rX, r4 into zxt4 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21299 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 10:06:35 +00:00
Nate Begeman
7bfba7d5e3 Implement multi-way branches through logical ops on condition registers. 
This can generate considerably shorter code, reducing the size of crafty
by almost 1%.  Also fix the printing of mcrf.  The code is currently
disabled until it gets a bit more testing, but should work as-is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21298 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 09:45:08 +00:00
Duraid Madina
c4ccc2db6b we have zextloads, not sextloads! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21296 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 08:37:32 +00:00
Nate Begeman
ef7288c824 Add the necessary support to codegen condition register logical ops with 
register allocated condition registers.  Make sure that the printed
  output is gas compatible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21295 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-14 03:20:38 +00:00
Nate Begeman
1b7f7fbf95 Start allocating condition registers. Almost all explicit uses of CR0 are 
now gone.  Next step is to get rid of the remaining ones and then start
allocating bools to CRs where appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21294 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 23:15:44 +00:00
Nate Begeman
3664ceffdd Implement the fold shift X, zext(Y) -> shift X, Y at the target level, 
where it is safe to do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21293 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 22:14:14 +00:00
Nate Begeman
eea805e74c Disbale the broken fold of shift + sz[ext] for now 
Move the transform for select (a < 0) ? b : 0 into the dag from ppc isel
Enable the dag to fold and (setcc, 1) -> setcc for targets where setcc
  always produces zero or one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21291 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 21:23:31 +00:00
Andrew Lenharth
c24b537399 WOW, function calls still seem to work after this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21286 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 17:17:28 +00:00
Andrew Lenharth
556c44e116 prepare for func call optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21285 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 16:19:50 +00:00
Duraid Madina
ed09502a0b * add the shladd instruction 
* fold left shifts of 1, 2, 3 or 4 bits into adds

  This doesn't save much now, but should get a serious workout once
  multiplies by constants get converted to shift/add/sub sequences.
  Hold on! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21282 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 06:12:04 +00:00
Andrew Lenharth
4f7cba5af8 add matches for SxADDL and company, as well as simplify the SxADDQ code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21281 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 05:19:55 +00:00
Duraid Madina
c02780eed1 * if ANDing with a constant of the form: 
0x00000..00FFF..FF
      ^      ^
      ^      ^
    any number of
    0's followed by
    some number of
    1's

    then we use dep.z to just paste zeros over the input. For the special
    cases where this is zxt1/zxt2/zxt4, we use those instructions instead,
    because we're all about readability!!!
    that's what it's about!! readability!

  *twitch* ;D


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21279 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 04:50:54 +00:00
Andrew Lenharth
483f22d817 added all flavors of zap for anding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21276 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 03:47:03 +00:00
Chris Lattner
5bf2686a1b Fix some mysteriously missing {}'s which cause the miscompilation of 
Olden/mst, Ptrdist/bc, Obsequi, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21274 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 03:29:53 +00:00
Chris Lattner
519f40ba4e remove one more occurance of this that snuck in 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21271 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:46:17 +00:00
Chris Lattner
2942e9c301 Remove support for ZERO_EXTEND_INREG. This pessimizes code, genering stuff 
like this:

        ldah $1,1($31)
        lda $1,-1($1)
        and $0,$1,$24

instead of this:

        zap $0,252,$24

To get this back, the selector should recognize the ISD::AND case where this
happens and emit the appropriate ZAP instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21270 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:43:40 +00:00
Chris Lattner
6ac614a4f2 Remove special handling of ZERO_EXTEND_INREG. This pessimizes code, causing 
things like this:

       mov r9 = 65535;;
       and r8 = r8, r9;;

To be emitted instead of:

        zxt2 r8 = r8;;

To get this back, the selector for ISD::AND should recognize this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21269 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:41:52 +00:00
Chris Lattner
c951d87fe9 Elimate handling of ZERO_EXTEND_INREG. This causes the PPC backend to emit 
andi instructions instead of rlwinm instructions for zero extend, but they
seem like they would take the same time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21268 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:40:26 +00:00
Chris Lattner
91302a10ae Z_E_I is gone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21267 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-13 02:39:05 +00:00
Nate Begeman
b882752bd0 Fold shift by size larger than type size to undef 
Make llvm undef values generate ISD::UNDEF nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21261 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 23:12:17 +00:00
Nate Begeman
9765c25eb7 Implement setcc op, -1 sequences 
Remove dead setcc op, 0 sequences
Coming later: generalization of op, imm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21260 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 21:22:28 +00:00
Duraid Madina
e8fd25f5c5 * OK, after changing to use liveIn/liveOut instead of IDEFs, 
to avoid redundant mov out3=r44 type instructions, we need to
tell the register allocator the truth about out? registers.

FIXME: unfortunately, since the list of allocatable registers is immutable,
we can't simply 'delete r127' from the allocation order, say, if 'out0' is
used. The only correct thing we can do is have a linear order of regs:

out7, out6 ... out2, out1, out0, r32, r33, r34 ... r126, r127

and slide a 'window' of 96 registers along this line, depending on how many
of the out? regs a function actually uses. The only downside of this is
that the out? registers will be allocated _first_, which makes the
resulting assembly ugly. :( Note this in the README. Hope this gets fixed
soon. :) (note the 3rd person speech there)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21252 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 18:42:59 +00:00
Andrew Lenharth
0b04b5d562 Get rid of idefs for arguments (oops) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21251 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 17:47:57 +00:00
Andrew Lenharth
e1c5a00e8b Get rid of idefs for arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21250 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 17:35:16 +00:00
Chris Lattner
9c24ba642e Put out* into the allocation order, allowing the register allocator to 
coallesce moves into outgoing args.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21249 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 15:12:51 +00:00
Chris Lattner
ea6f770fb0 Make sure to realize that calls use their argument regs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21248 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 15:12:19 +00:00
Duraid Madina
ca494fddcd stop emitting IDEFs for args - change to using liveIn/liveOut 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21247 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 14:54:44 +00:00
Nate Begeman
7af0248af4 Initial support for allocation condition registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21246 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 07:04:16 +00:00
Nate Begeman
9f833d3085 Implement bitfield clears 
Implement divide by negative power of two


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21240 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-12 00:10:02 +00:00
Nate Begeman
ef9531efed Update PPC readme. Remove things that are done or aren't ppc specific 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21232 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 20:48:57 +00:00
Chris Lattner
30e82431b3 IA64 supports this operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21228 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 18:55:36 +00:00
Chris Lattner
5eef9f3bc9 ORo sets CR0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21227 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 15:03:48 +00:00
Chris Lattner
6b4ea2cfa2 Revert the previous patch, which I didn't mean to check in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21226 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 15:03:41 +00:00
Chris Lattner
26d4fdb968 Fix a minor bug (ORo didn't mark that it set CR0). 
Refactor how . instructions are handled.  In particular, instead of passing
the RC flag all the way up the inheritance hierarchy, just make a new tblgen
class 'DOT' which can be added to an instruction definition.

For example, instead of this:

-def AND  : XForm_6<31,  28, 0, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
-let Defs = [CR0] in
-def ANDo : XForm_6<31,  28, 1, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
-                   "and. $rA, $rS, $rB">;

We now have this:

+def AND  : XForm_6<31,  28, 0, 0, (ops GPRC:$rA, GPRC:$rS, GPRC:$rB),
                    "and $rA, $rS, $rB">;


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21225 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 15:01:39 +00:00
Duraid Madina
21478e55db hmm, should probably change addImm() to take 64-bit arguments one day anyway. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21224 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 07:16:39 +00:00
Nate Begeman
c7bd4827cd Add recording variants of ISD::AND and ISD::OR. This kills almost 1000 
(1.5%) instructions in 186.crafty


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21222 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 06:34:10 +00:00
Duraid Madina
5ef2ec9929 assorted fixes: 
* clean up immediates (we use 14, 22 and 64 bit immediates now. sane.)
  * fold r0/f0/f1 registers into comparisons against 0/0.0/1.0
  * fix nasty thinko - didn't use two-address form of conditional add
    for extending bools to integers, so occasionally there would be
    garbage in the result. it's amazing how often zeros are just
    sitting around in registers ;) - this should fix a bunch of tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21221 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-11 05:55:56 +00:00
Nate Begeman
709c806a1e Fix another fixme: factor out the constant fp generation code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21207 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 06:06:10 +00:00
Nate Begeman
c5b1cd22b5 Fix 64 bit argument loading that straddles the args in regs / args on stack 
boundary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21206 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 05:53:14 +00:00
Nate Begeman
340f290783 Remove unnecessary Implicit Defs. Since r0 is not in allocation, we do not 
have to inform the register allocator it might be stepped on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21202 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 03:59:42 +00:00
Nate Begeman
27499e3f1b Make sure that BRCOND branches can be converted into long branches too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21198 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 01:48:29 +00:00
Nate Begeman
a0e3e9474f Don't hand ISD::CALL nodes off to SelectExprFP. This fixes siod. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21197 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 01:14:13 +00:00
Chris Lattner
51d2ed976f rename getPPCOpcodeForSetCCNumber -> getPPCOpcodeForSetCCOpode to be more 
correct.  Remove the EmitComparison retvalue, as it is always the first arg.

Fix a place where we incorrectly passed in the setcc opcode instead of the
setcc number, causing us to miscompile crafty.  Crafty now works!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21195 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-10 01:03:31 +00:00
Nate Begeman
706471e291 fix ISD::BRCONDTWOWAY codegen to not deference the end() iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21193 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 23:35:05 +00:00
Chris Lattner
9184bfbbf4 Fix CodeGen/Generic/2005-05-09-GlobalInPHI.ll, which was reduced from 254.gap. 
This caused the "use before a def" assertion on some programs.

With this patch, 254.gap now passes with the PPC backend.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21191 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 22:05:17 +00:00
Chris Lattner
91277ea45c do not set the root to null if an argument is dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21188 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 21:23:24 +00:00
Nate Begeman
cd08e4cb7e Add rlwnm instruction for variable rotate 
Generate rotate left/right immediate
Generate code for brcondtwoway
Use new livein/liveout functionality


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21187 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 20:09:12 +00:00
Chris Lattner
27ee3a332d Fix a crash on 173.applu by asking for a constant bigger than 32-bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21185 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 19:47:21 +00:00
Chris Lattner
f429a3e0f6 Switch this instruction selector over to using liveins and liveouts, eliminating 
implicit defs on entry to the function.  yaay :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21184 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 16:32:30 +00:00
Chris Lattner
4c52f0ec8c Use live out sets for return values instead of imp_defs, which is cleaner and faster. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21181 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 15:23:56 +00:00
Duraid Madina
e00e5ded51 ok, the "ia64 has a boatload of registers" joke stopped being funny today ;) 
* fix overallocation of integer (stacked) registers: we can't allocate
  registers for local use if they are required as output registers

this fixes 'toast' in the test suite, and all sorts of larger programs
like bzip2 etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21178 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 11:53:00 +00:00
Nate Begeman
af4ab1b103 Optimize FSEL a bit for fneg arguments. This fixes the recently added test 
case so that we emit

_test_fneg_sel:
.LBB_test_fneg_sel_0:   ;
        fsel f1, f1, f3, f2
        blr

instead of:

_test_fneg_sel:
.LBB_test_fneg_sel_0:   ;
        fneg f0, f1
        fneg f0, f0
        fsel f1, f0, f3, f2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21177 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 09:33:07 +00:00
Chris Lattner
67ac5f459e Fix CodeGen/SparcV9/2005-05-09-GEP-Crash.ll a crash on some specfp program 
lets hope this doesn't break other programs with induced entropy


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21174 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 06:27:14 +00:00
Chris Lattner
da4d4694a8 This target does not support/want ISD::BRCONDTWOWAY 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21164 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 03:22:37 +00:00
Chris Lattner
644db4ec5f This target does not yet support ISD::BRCONDTWOWAY 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21163 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 03:22:30 +00:00
Nate Begeman
e88aa5b4d1 64b: Expand S/UREM 
32b: No longer pattern match fneg(fsub(fmul)) as fnmsub
     Pattern match fsub a, mul(b, c) as fnmsub
     Pattern match fadd a, mul(b, c) as fmadd
Those changes speed up hydro2d by 2.5%, distray by 6%, and scimark by 8%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21161 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-09 03:05:51 +00:00
Nate Begeman
a9532d5dde Fix 64b shifts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21159 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 23:45:01 +00:00
Nate Begeman
f3f2d6d378 Match Mac OS X 64 bit calling conventions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21157 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 21:26:05 +00:00
Andrew Lenharth
a32b9e31c6 collect a few statistics, factor constants (constant loading and mult), fix logic operation pattern matchs, supress FP div when int dividing by a constant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21156 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 17:28:49 +00:00
Duraid Madina
6dcceb5ecb fix bogus division-by-power-of-2 (was wrong for negative input, adds extr insn) 
fix hack in division (clean up frcpa instruction)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21153 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-08 10:01:48 +00:00
Nate Begeman
7e7fadd2ea Optimized code sequences for setcc reg, 0 
Optimized code sequence for (a < 0) ? b : 0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21150 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 20:30:01 +00:00
Andrew Lenharth
d3355e22a7 Alpha zero extends setcc results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21149 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 20:11:32 +00:00
Chris Lattner
cbd06fc3d7 PowerPC zero extends setcc results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21147 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 19:41:49 +00:00
Chris Lattner
6659bd7592 X86 zero extends setcc results 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21146 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 19:41:46 +00:00
Andrew Lenharth
2966e84a8d fix a small optimization opertunity and make gcc happy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21143 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 18:15:28 +00:00
Andrew Lenharth
320174f009 fixup magic constant making code. tested by thousands of random divisions.... by 10000. ok, so random divisors would be good too, but this at least fixes some things 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21140 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 17:19:16 +00:00
Andrew Lenharth
9bf59d7ed2 lowercase instructions, makes diff happier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21139 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 17:17:48 +00:00
Andrew Lenharth
273a1f956f It wasn't happy about this either 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21133 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 14:18:13 +00:00
Andrew Lenharth
706be918ca Yea, it wasn't happy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21132 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 13:55:53 +00:00
Duraid Madina
e6a0b6cbda teach asmprinter to print s8/s14 operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21131 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 12:34:36 +00:00
Duraid Madina
f55e403ef9 codegen immediate forms of add/sub/shift 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21130 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 12:33:38 +00:00
Duraid Madina
18c0c6bcc4 add immediate forms of add, sub, shift 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21129 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-07 12:32:24 +00:00
Nate Begeman
7ddecb4186 Pattern match bitfield insert, which helps shift long by immediate, among 
other things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21127 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 23:51:40 +00:00
Nate Begeman
020ef42c19 Fix some shift bugs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21126 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 22:42:08 +00:00
Alkis Evlogimenos
aeca558788 Make these 64 bit constants so that this compiles on x86-32 as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21125 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 22:09:40 +00:00
Andrew Lenharth
a565c275b5 added sdiv by 2^k and works for neg divisors also 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21124 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 22:03:13 +00:00
Andrew Lenharth
f77f395043 fix copy/paste errors, and add imm support to SxADDQ and SxSUBQ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21121 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 20:59:59 +00:00
Chris Lattner
6d027f2e6f Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not 
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21120 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 20:59:35 +00:00
Andrew Lenharth
4b8ac1559a Added Nate's div by constant stuff, also scaled operations! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21116 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 20:25:34 +00:00
Chris Lattner
ce91ec9ae6 Fix a namespace issue, reported by Vladimir Merzliakov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21115 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 19:45:39 +00:00
Duraid Madina
4826a0786d steal sampo's div-by-constant-power-of-2 stuff 
thanks sampo!!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21113 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 09:55:17 +00:00
Duraid Madina
b366a02ff2 add fms instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21112 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 09:54:09 +00:00
Nate Begeman
27b4c23b80 Fixed version of optimized integer divide is now fixed. Calculate the 
quotient, not the remainder.  Also, make sure to remove the old div operand
from the ExprMap and let SelectExpr insert the new one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21111 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 06:44:57 +00:00
Duraid Madina
b70c2f3ef7 lie a bit and say that r1/r12 (GP/SP) _aren't_ callee-save, as we take 
care of this ourselves


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21110 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 06:18:36 +00:00
Duraid Madina
4ee131ffa8 make sure 'special' registers don't get allocated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21109 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 06:17:54 +00:00
Chris Lattner
8db0af1c8d Add (untested) support for MULHS and MULHU. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21107 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 04:21:07 +00:00
Chris Lattner
1e6a71524e add signed versions of the extra precision multiplies 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21106 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 04:19:22 +00:00
Nate Begeman
8f52980f03 Turn off the div -> mul optimization until it works correctly 100% of the 
time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21105 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 03:36:33 +00:00
Nate Begeman
815d6dac1e Add support for MULHS and MULHU nodes 
Have LegalizeDAG handle SREM and UREM for us
Codegen SDIV and UDIV by constant as a multiply by magic constant instead
of integer divide, which is very slow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21104 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-06 00:25:27 +00:00
Andrew Lenharth
2513ddc239 added lowerargs support for varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21101 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 20:51:46 +00:00
Nate Begeman
ad5f65c74b Behold, rlwinm with certain immediate arguments is printed as the much more 
readable slwi or srwi (shift left/right word immediate).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21099 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 18:19:50 +00:00
Nate Begeman
a3829d5580 Fix cut & paste errors (32->64), and codegen float->int more optimally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21098 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 17:32:30 +00:00
Tanya Lattner
ac6e2dbf52 Updated to use dep analyzer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21097 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 16:36:44 +00:00
Nate Begeman
d3e6b94020 Remove 64 bit simple ISel, it never worked correctly 
Add initial (buggy) implementation of 64 bit pattern ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21096 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 08:51:15 +00:00
Nate Begeman
c8c5c8f0fa Back out the previous change to SelectBranchCC, since there are cases it 
could miscompile.  A correct solution will be found in the near future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21095 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 04:32:16 +00:00
Nate Begeman
439b444cad Rename canUseAsImmediateForOpcode to getImmediateForOpcode to better 
indicate that it is not a boolean function.
Properly emit the pseudo instruction for conditional branch, so that we
  can fix up conditional branches whose displacements are too large.
Reserve the right amount of opcode space for said pseudo instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21094 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 04:22:58 +00:00
Nate Begeman
80196b1331 Implement SDIV by power of 2 as srawi/addze rather than load imm, divw 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21091 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-05 00:15:08 +00:00
Nate Begeman
93075ec0a5 Pattern match fp mul-add, mul-sub, neg-mul-add, and neg-mul-sub 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21090 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 23:40:36 +00:00
Nate Begeman
178bb34ee5 Add support for multiply-add, multiply-sub, and their negated versions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21089 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 23:01:51 +00:00
Nate Begeman
d860aa62ac Make sure that arg regs used by the call instruction are marked as such, so 
that regalloc doesn't cleverly reuse early arg regs loading later arg regs.
This fixes almost all outstanding failures in the pattern isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21086 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 22:17:48 +00:00
Nate Begeman
04ec80173b Remove unnecessary register copy now that regalloc is fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21085 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 21:48:13 +00:00
Nate Begeman
c3e2db407e i1 loads should also be from the low byte of the argument word. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21077 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 09:09:00 +00:00
Nate Begeman
e584668f04 Fix i64 return, fix CopyFromReg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21076 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 06:52:38 +00:00
Duraid Madina
6e02e6842a fix SREM/UREM, which gave incorrect results for x%y if x was zero. This is 
an ugly hack, but it seems to work. I should fix this properly and add a test
as well.

fixes multisource/obsequi (maybe others)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21075 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 05:05:52 +00:00
Duraid Madina
09c61b9c19 add implicit use op 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21074 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-04 04:50:57 +00:00
Nate Begeman
6644d4c933 Full varargs support. All of UnitTests now passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21070 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 23:11:17 +00:00
Nate Begeman
4ec0cbdf15 Pass the correct value for the chain to the store 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21066 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 22:22:56 +00:00
Nate Begeman
fa55470e39 Fix SHL_PARTS 
Start implementation of integer varargs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21065 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 22:13:27 +00:00
Andrew Lenharth
63b720ac7c is this simpler? I think it is simpler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 20:35:21 +00:00
Andrew Lenharth
500d025bd9 fix 101 regressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21063 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 18:24:50 +00:00
Duraid Madina
162a837f63 .bss is no problem here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21061 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 14:52:01 +00:00
Nate Begeman
aa73a9f16f Keeping up with the Joneses. 
Implement not, nor, nand, and eqv


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21060 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-03 11:20:20 +00:00
Andrew Lenharth
10c085b525 Select optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21051 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 22:32:39 +00:00
Andrew Lenharth
0eaf6ce2ef Try several things. 1) drop /i from FP ops 2) factor out FP to Int moves and provide 21264 support for those 3) match not 4) match ornot andnot xornot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 21:06:51 +00:00
Andrew Lenharth
7332f3e05d FNEG/FABS/UNDEF 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21029 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 19:11:07 +00:00
Andrew Lenharth
30b46d41bc FNEG/FABS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21028 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 19:04:58 +00:00
Duraid Madina
32c46f33b7 ia64 asmprinter fixes: 
- turn off assembler's autoalignment
  - set FunctionAddrPrefix/Suffix so that .data8 entries pointing to
    functions have their value wrapped in @fptr(), so that a function
    descriptor will be materialized for that function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21025 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 12:30:47 +00:00
Duraid Madina
75c9fcbdcc support IDEF, fnegabs (thanks sampo) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21023 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 10:33:53 +00:00
Duraid Madina
5c156b7473 add fnegabs op 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21022 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 10:06:27 +00:00
Nate Begeman
27eeb00a1a Set shift amount to Extend 
Implement ISD::FABS and ISD::FNEG nodes
Implement SHL_PARTS, SRL_PARTS, and SRA_PARTS
Generate PowerPC 'fneg', 'fabs', and 'fnabs' instructions


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21018 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:59:34 +00:00
Chris Lattner
b7edaa1d08 add support for FABS and FNEG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21015 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:30:17 +00:00
Duraid Madina
a7ee8b8f04 add support FNEG and FABS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21012 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:18:38 +00:00
Chris Lattner
43fdea070c This target doesn't support fabs/fneg yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21010 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 05:03:24 +00:00
Chris Lattner
b1f26fb921 add an fabs instr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21006 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 04:31:56 +00:00
Chris Lattner
b38a7495da Add support for 64-bit shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21005 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 04:01:14 +00:00
Nate Begeman
27523a1c92 Fix i64 returns 
Generate PowerPC 'subfic' instruction when appropriate


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20995 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-02 00:42:16 +00:00
Chris Lattner
7ce7eff54c Add support for ISD::UNDEF to the X86 be 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20990 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 22:46:45 +00:00
Nate Begeman
fc1b1dad88 Add ISD::UNDEF node 
Teach the SelectionDAG code how to expand and promote it
Have PPC32 LowerCallTo generate ISD::UNDEF for int arg regs used up by fp
  arguments, but not shadowing their value.  This allows us to do the right
  thing with both fixed and vararg floating point arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20988 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 22:34:39 +00:00
Chris Lattner
e6fea166c3 Fix another PATypeHolder error, contributed by Bill Wendling! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20983 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 15:41:30 +00:00
Duraid Madina
69c8e20aa1 repair mindless SELECT waste. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20982 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 10:35:00 +00:00
Nate Begeman
6cb2e1b124 Fix Olden/bh, CR0 was being set in the wrong order 
LowerCallTo and ISD::CALL are going to need to be modified, regs are being
set in the wrong order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20981 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 08:57:43 +00:00
Nate Begeman
31318e4b6c Also apply Chris's fix to FP select and SETCC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20979 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 07:21:30 +00:00
Chris Lattner
3071019026 Move the selection of the arms of the select operation up to the conditional 
part to make sure we get the side effects and to avoid confusing the CFG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20977 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 07:10:02 +00:00
Nate Begeman
a7e11a4bb5 Fix stores to global addresses 
Fix calls with no arguments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20975 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 05:57:17 +00:00
Nate Begeman
04730361b5 Support indexed loads and stores. This drops Shootout/matrix time from 
18.8 to 14.8 seconds.  The Pattern ISel is now often faster than the
Simple ISel, esp. on memory intensive code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20973 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 04:45:11 +00:00
Nate Begeman
6b55997df5 Implement FP_TO_SINT and FP_TO_UINT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20972 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 02:59:27 +00:00
Nate Begeman
6d369ccae0 Add support for adding 0.0 and -0.0 to the constant pool, since we lie and 
say that we support them, for the purposes of generating fsel instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20970 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 01:08:07 +00:00
Nate Begeman
dffcfccc13 Factor out common code, support FP comparison in folded SetCC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20969 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-04-01 00:32:34 +00:00
Nate Begeman
3e89716ad7 fsel generation for f32 and f64 select 
generate compare immediate for integer compare with constant
fold setcc into branch
fold setcc into select

Code generation quality for Shootout is now on par with the Simple ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20968 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 23:55:40 +00:00
Andrew Lenharth
5e99dd9c2b make fp div trick dependend on flag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20967 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 22:02:25 +00:00
Andrew Lenharth
95762124a1 PCMarker support for DAG and Alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20965 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 21:24:06 +00:00
Duraid Madina
beeaab28a5 Assorted fixes: 
* Stop being pessimistic about output register allocation
  * Start to handle function descriptors: compute target GPs and so on
  when doing indirect calls etc. Not there yet, though. For the moment,
  we try to use _indirect_ branches wherever possible, to stress test
  function descriptors.
  * FP divide-by-zero should work now
  * add varargs (it doesn't work, though)

At this point, all of SingleSource passes (modulo C++ tests that are due
to issues with the CFE, see note in the README.) Much of MultiSource also
passes although there's still a ton of bugs around. Something for me to
work on tomorrow, then. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20960 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 12:31:11 +00:00
Duraid Madina
1f867b103d * declare local common symbols as such (.lcomm, not merely .common) 
* begin great adventure into correct function descriptor materialization


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20956 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:40:24 +00:00
Duraid Madina
290f64c1cb daintyness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20955 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:36:43 +00:00
Duraid Madina
291e1266c1 add what we need to fudge a 'floating point conditional move', this is 
used to get FP div-by-zero working properly (shunt the right answer
depending on how frcpa sets its predicate output)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20954 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:32:32 +00:00
Nate Begeman
96fc681d7e Pass the correct values to the chain argument for node construction during 
LowerCallTo.
Handle ISD::ADD in SelectAddr, allowing us to have nonzero immediates for
loads and stores, amazing!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20946 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 02:05:53 +00:00
Nate Begeman
74d734574e Rewrite LowerCallTo and Select(ISD::CALL) to properly handle float varargs 
Tell the SelectionDAG ISel to expand SEXTLOAD of i1 and i8, rather than
  complicate the code in ISD::SEXTLOAD to do it by hand
Combine the FP and Int ISD::LOAD codegen
Generate better code for constant pool loads

As a result, all of Shootout, and likely many other programs are now
working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20945 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 00:15:26 +00:00
Nate Begeman
fdcf3418e0 Fix calls whose arguments fit entirely in registers to not break the Chain. 
Implement SINT_TO_FP and UINT_TO_FP
Remove some dead code from the simple ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20944 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 19:38:35 +00:00
Andrew Lenharth
ba05ad605e yea, fine Duraid 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20942 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 18:22:52 +00:00
Nate Begeman
58f718cd97 Fix frame index code to generate legal PowerPC instructions. About half of 
Shootout now works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20940 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 02:23:08 +00:00
Nate Begeman
01d05266f9 Fix external symbol printing in the AsmPrinter. Tell the ISel that we 
don't support things like memcpy directly.  This allows a handful of the
Shootout programs to work, yay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20939 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:45:43 +00:00
Chris Lattner
71df3f8cab don't depend on the cfg being set up yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20936 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:10:00 +00:00
Nate Begeman
23afcfb063 Fix BranchCC (it's still dumb), and implement FP select (also dumb) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20935 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 22:48:55 +00:00
Nate Begeman
74747861b9 Implement integer select and i1 sign extend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20934 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 22:24:51 +00:00
Nate Begeman
3316252034 Implement SetCC, fix ZERO_EXTEND_INREG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20933 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 21:54:38 +00:00
Tanya Lattner
5e9f352346 Compare dependence analysis with llvm instructions versus machine instrutions. the problem with using machine instructions and alias analysis is that aa does not handle tmp instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20931 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:35:10 +00:00
Tanya Lattner
5ec3a63f6d Dependence analyzer that just determines dependences within a loop for loads and stores using alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20930 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:33:42 +00:00
Andrew Lenharth
c05138387a Fix up some types and constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20928 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:24:04 +00:00
Chris Lattner
848132d671 fix a warning in the optimized build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20920 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 15:13:27 +00:00
Nate Begeman
f3d08f31b3 Implement div, rem, and frameindex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20907 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 00:03:27 +00:00
Nate Begeman
f70b576ccc Pattern ISel: fix argument loading for i64s (thanks chris) 
Simple  ISel: fix i64 subtract


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20903 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 23:08:54 +00:00
Nate Begeman
ca12a2bd91 Remove fake instruction 'subc' (mnemonic for subfc). 
More pattern isel updates


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20902 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 22:28:37 +00:00
Nate Begeman
9db505ca9d Implement proper loads and zero-extends of all types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20897 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 19:36:43 +00:00
Duraid Madina
ae8bd73634 Emit .global @function and .global @object entries so the Intel ias 
assembler may be used; identify LLVM output as such.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20892 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 15:21:43 +00:00
Nate Begeman
7532e2f555 Fix that pesky floats in integer regs problem by assigning the f32 type to 
the correct register class.  Also remove the loading of float data into int
regs part of varargs; it will need to be implemented differently later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20857 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 08:25:22 +00:00
Nate Begeman
f7e4338035 Get closer to having varargs working. There's still something strange 
going on with copies between floating point and integer register files
being generated.  Once that is solved, varargs will be done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20856 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 07:46:36 +00:00