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Author SHA1 Message Date
Chris Lattner
fcf6ee0a8b Turn -0.0 - X -> fneg 
llvm-svn: 21011
 2005-04-02 05:04:50 +00:00
Chris Lattner
a5d4718875 This target doesn't support fabs/fneg yet. 
llvm-svn: 21010
 2005-04-02 05:03:24 +00:00
Chris Lattner
8644181cd6 Several changes mixed up here. First when legalizing a DAG with pcmarker, 
dont' regen the whole dag if unneccesary.  Second, fix and ugly bug with
the _PARTS nodes that caused legalize to produce multiples of them.
Finally, implement initial support for FABS and FNEG.  Currently FNEG is
the only one to be trusted though.

llvm-svn: 21009
 2005-04-02 05:00:07 +00:00
Chris Lattner
c8f36868e6 print fneg/fabs 
llvm-svn: 21008
 2005-04-02 04:58:41 +00:00
Chris Lattner
e74fa510c9 Add two happy new nodes for FABS and FNEG 
llvm-svn: 21007
 2005-04-02 04:58:28 +00:00
Chris Lattner
71434aa2dd add an fabs instr 
llvm-svn: 21006
 2005-04-02 04:31:56 +00:00
Chris Lattner
8ee783d9f0 Add support for 64-bit shifts. 
llvm-svn: 21005
 2005-04-02 04:01:14 +00:00
Chris Lattner
8be5696874 fix some bugs in the implementation of SHL_PARTS and friends. 
llvm-svn: 21004
 2005-04-02 04:00:59 +00:00
Chris Lattner
92920b74a0 fix a comment 
llvm-svn: 21003
 2005-04-02 03:59:45 +00:00
Chris Lattner
964ab5d408 Turn expanded shift operations into (e.g.) SHL_PARTS if the target supports it. 
llvm-svn: 21002
 2005-04-02 03:38:53 +00:00
Chris Lattner
33ca1ce8e0 Print some new nodes 
llvm-svn: 21001
 2005-04-02 03:30:42 +00:00
Chris Lattner
37abadec02 add some new nodes. 
llvm-svn: 21000
 2005-04-02 03:30:33 +00:00
Chris Lattner
20027c6b30 Fix a bug when inserting a libcall into a function with no other calls. 
llvm-svn: 20999
 2005-04-02 03:22:40 +00:00
Chris Lattner
af30f4c392 new generic testcsae 
llvm-svn: 20996
 2005-04-02 02:41:55 +00:00
Nate Begeman
8d60ca616f Fix i64 returns 
Generate PowerPC 'subfic' instruction when appropriate

llvm-svn: 20995
 2005-04-02 00:42:16 +00:00
Nate Begeman
893f5729ce Fix a warning about an unhandled switch case 
llvm-svn: 20994
 2005-04-02 00:41:14 +00:00
John Criswell
6208a3090e For Sparc, this xfails. I don't think sparc has the C99 complex data 
type support.

llvm-svn: 20993
 2005-04-01 23:16:23 +00:00
Chris Lattner
67da3fdb70 Add support for ISD::UNDEF to the X86 be 
llvm-svn: 20990
 2005-04-01 22:46:45 +00:00
Nate Begeman
4034852ba9 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.

llvm-svn: 20988
 2005-04-01 22:34:39 +00:00
Chris Lattner
375f5e6ed5 Fix another PATypeHolder error, contributed by Bill Wendling! 
llvm-svn: 20983
 2005-04-01 15:41:30 +00:00
Duraid Madina
48ef32d6d3 repair mindless SELECT waste. 
llvm-svn: 20982
 2005-04-01 10:35:00 +00:00
Nate Begeman
244b36582a 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.

llvm-svn: 20981
 2005-04-01 08:57:43 +00:00
Nate Begeman
f3ead25b68 Also apply Chris's fix to FP select and SETCC 
llvm-svn: 20979
 2005-04-01 07:21:30 +00:00
Chris Lattner
0a985df8a6 new testcase 
llvm-svn: 20978
 2005-04-01 07:19:06 +00:00
Chris Lattner
0cd0036523 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.

llvm-svn: 20977
 2005-04-01 07:10:02 +00:00
Chris Lattner
c81870e4e6 print the machine CFG in the -print-machineinstrs dump 
llvm-svn: 20976
 2005-04-01 06:48:38 +00:00
Nate Begeman
e82a2d7373 Fix stores to global addresses 
Fix calls with no arguments

llvm-svn: 20975
 2005-04-01 05:57:17 +00:00
Nate Begeman
9d224ae29b 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.

llvm-svn: 20973
 2005-04-01 04:45:11 +00:00
Nate Begeman
af7c6366d7 Implement FP_TO_SINT and FP_TO_UINT 
llvm-svn: 20972
 2005-04-01 02:59:27 +00:00
Nate Begeman
552f6f5f4e 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.

llvm-svn: 20970
 2005-04-01 01:08:07 +00:00
Nate Begeman
18b3394f4d Factor out common code, support FP comparison in folded SetCC 
llvm-svn: 20969
 2005-04-01 00:32:34 +00:00
Nate Begeman
fc89059914 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

llvm-svn: 20968
 2005-03-31 23:55:40 +00:00
Andrew Lenharth
1ba016ab6f make fp div trick dependend on flag 
llvm-svn: 20967
 2005-03-31 22:02:25 +00:00
Misha Brukman
b5dc9aae6c Fix spelling of `corresponds' 
llvm-svn: 20966
 2005-03-31 21:30:35 +00:00
Andrew Lenharth
7db3834ecf PCMarker support for DAG and Alpha 
llvm-svn: 20965
 2005-03-31 21:24:06 +00:00
Duraid Madina
47fed18416 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. :)

llvm-svn: 20960
 2005-03-31 12:31:11 +00:00
Duraid Madina
f2d1865c74 * declare local common symbols as such (.lcomm, not merely .common) 
* begin great adventure into correct function descriptor materialization

llvm-svn: 20956
 2005-03-31 07:40:24 +00:00
Duraid Madina
03efd3bea9 daintyness 
llvm-svn: 20955
 2005-03-31 07:36:43 +00:00
Duraid Madina
11ff0a2a5f 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)

llvm-svn: 20954
 2005-03-31 07:32:32 +00:00
Nate Begeman
17ff2b3a87 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!

llvm-svn: 20946
 2005-03-31 02:05:53 +00:00
Nate Begeman
de4aac1374 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.

llvm-svn: 20945
 2005-03-31 00:15:26 +00:00
Nate Begeman
9c5480beeb 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

llvm-svn: 20944
 2005-03-30 19:38:35 +00:00
Misha Brukman
ee79fb8773 * Put command-line switches and function names in <tt> 
* Add links to mailing lists and publications

llvm-svn: 20943
 2005-03-30 19:14:24 +00:00
Andrew Lenharth
91bd9033c6 yea, fine Duraid 
llvm-svn: 20942
 2005-03-30 18:22:52 +00:00
Duraid Madina
0294f4225d Add section for Itanium 
llvm-svn: 20941
 2005-03-30 05:33:54 +00:00
Nate Begeman
c877844625 Fix frame index code to generate legal PowerPC instructions. About half of 
Shootout now works.

llvm-svn: 20940
 2005-03-30 02:23:08 +00:00
Nate Begeman
ec87399dac 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!

llvm-svn: 20939
 2005-03-30 01:45:43 +00:00
Misha Brukman
695b407b6c * Add section for Alpha 
* Remove extraneous subsections

llvm-svn: 20938
 2005-03-30 01:14:38 +00:00
Chris Lattner
abb59a3c21 Instead of setting up the CFG edges at selectiondag construction time, set 
them up after the code has been emitted.  This allows targets to select one
mbb as multiple mbb's as needed.

llvm-svn: 20937
 2005-03-30 01:10:47 +00:00
Chris Lattner
46c4246df1 don't depend on the cfg being set up yet 
llvm-svn: 20936
 2005-03-30 01:10:00 +00:00