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319 Commits

Author SHA1 Message Date
Chris Lattner
feb0442901 Since getSubtarget() always provides a const Subtarget, dont' require the user 
to pass it in.  Also, since it always returns a non-null pointer, make it
return a reference instead for easier use.

llvm-svn: 22686
 2005-08-05 21:53:21 +00:00
Jeff Cohen
81980781a1 Eliminate tabs and trailing spaces. 
llvm-svn: 22520
 2005-07-27 05:53:44 +00:00
Andrew Lenharth
8fc535e9bd allow constants to be relocated like GV (necessary for alpha, as constants are relocated with globals, not with .text), and allow targets to have a GOT managed for them 
llvm-svn: 22496
 2005-07-22 20:46:42 +00:00
Reid Spencer
40c5ebe4eb For: memory operations -> stores 
This is the first incremental patch to implement this feature. It adds no
functionality to LLVM but setup up the information needed from targets in
order to implement the optimization correctly. Each target needs to specify
the maximum number of store operations for conversion of the llvm.memset,
llvm.memcpy, and llvm.memmove intrinsics into a sequence of store operations.
The limit needs to be chosen at the threshold of performance for such an
optimization (generally smallish). The target also needs to specify whether
the target can support unaligned stores for multi-byte store operations.
This helps ensure the optimization doesn't generate code that will trap on
an alignment errors.
More patches to follow.

llvm-svn: 22468
 2005-07-19 04:52:44 +00:00
Nate Begeman
0a08ce9c07 Clean up and add comments to the newly implemented subtarget code. 
llvm-svn: 22396
 2005-07-12 03:04:49 +00:00
Nate Begeman
4d96f2769c Clean up the TargetSubtarget class a bit, removing an unnecessary argument 
to the constructor.

llvm-svn: 22392
 2005-07-12 02:41:19 +00:00
Nate Begeman
626fb671c8 Implement Subtarget support 
Implement the X86 Subtarget.

This consolidates the checks for target triple, and setting options based
on target triple into one place.  This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.

This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin.  Next up is to convert over the asm printers
to use this new interface.

llvm-svn: 22389
 2005-07-12 01:41:54 +00:00
Chris Lattner
bf100c8bdb Make several cleanups to Andrews varargs change: 
1. Pass Value*'s into lowering methods so that the proper pointers can be
   added to load/stores from the valist
2. Intrinsics that return void should only return a token chain, not a token
   chain/retval pair.
3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone.

llvm-svn: 22338
 2005-07-05 19:57:53 +00:00
Chris Lattner
82cdeff6db add some new file types 
llvm-svn: 22286
 2005-06-25 03:31:43 +00:00
Chris Lattner
37688fa81f refactor these interfaces a bit 
llvm-svn: 22281
 2005-06-25 02:47:50 +00:00
Andrew Lenharth
108f509fb5 header file changes for varargs 
llvm-svn: 22253
 2005-06-18 18:31:30 +00:00
Tanya Lattner
e8f3fe8b46 Added ModuloSchedSB as a friend class. 
llvm-svn: 22237
 2005-06-17 03:59:51 +00:00
Chris Lattner
ae59fdbd99 Pass the dag into LowerOperation 
llvm-svn: 22005
 2005-05-14 05:51:05 +00:00
Chris Lattner
9d788e93a6 Add an isTailCall flag to LowerCallTo 
llvm-svn: 21958
 2005-05-13 18:50:42 +00:00
Chris Lattner
ccb86c9acc LowerCallTo now takes the cc to use 
llvm-svn: 21901
 2005-05-12 19:57:08 +00:00
Chris Lattner
045b3f0110 Add a little hook 
llvm-svn: 21883
 2005-05-12 02:02:21 +00:00
Chris Lattner
05d8a36ba7 Expose an option allowing unsafe math optimizations. Patch contributed by 
Morten Ofstad!

llvm-svn: 21630
 2005-04-30 04:09:52 +00:00
Reid Spencer
e952b16f37 Shut GCC 4.0 up about classes that have virtual functions but a non-virtual 
destructor. Just add the do-nothing virtual destructor.

llvm-svn: 21524
 2005-04-25 02:55:55 +00:00
Misha Brukman
353d27c5fc * The aesthetic police is on patrol!!... 
* ... but it wasn't so busy as to not smell the roses and doxygenify comments

llvm-svn: 21487
 2005-04-23 22:35:26 +00:00
Chris Lattner
9484bc95af Add a helper method 
llvm-svn: 21486
 2005-04-23 22:20:22 +00:00
Misha Brukman
5e38b1e17e Convert tabs to spaces 
llvm-svn: 21438
 2005-04-22 03:46:24 +00:00
Misha Brukman
58c97e67f3 Remove trailing whitespace 
llvm-svn: 21412
 2005-04-21 20:59:05 +00:00
Nate Begeman
ecb5b5c028 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

llvm-svn: 21309
 2005-04-15 22:12:16 +00:00
Chris Lattner
f275f2af41 Allow targets which produce setcc results in non-MVT::i1 registers to describe 
what the contents of the top bits of these registers are, in the common cases
of targets that sign and zero extend the results.

llvm-svn: 21145
 2005-04-07 19:41:18 +00:00
Nate Begeman
e0ab2218d1 Change LowerCallTo to take a boolean isVarArg argument. This is needed 
by the PowerPC backend, and probably others in the future.

llvm-svn: 20843
 2005-03-26 01:30:30 +00:00
Chris Lattner
183a6977d2 add a helper method 
llvm-svn: 20578
 2005-03-13 19:04:04 +00:00
Chris Lattner
2a03fa3a5c Add a new method, described in the comment. 
llvm-svn: 19683
 2005-01-19 06:53:02 +00:00
Chris Lattner
4938a7c8a1 Move all data members to the end of the class. 
Add a hook to find out how the target handles shift amounts that are out of
range.  Either they are undefined (the default), they mask the shift amount
to the size of the register (X86, Alpha, etc), or they extend the shift (PPC).

This defaults to undefined, which is conservatively correct.

llvm-svn: 19676
 2005-01-19 03:36:03 +00:00
Chris Lattner
8dd332e4e5 Add comments 
Add fields to hold the result type of setcc operations and shift amounts.

llvm-svn: 19618
 2005-01-16 23:59:30 +00:00
Chris Lattner
e38f72316d Revamp supported ops. Instead of just being supported or not, we now keep 
track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.

llvm-svn: 19609
 2005-01-16 07:27:49 +00:00
Chris Lattner
605b9a23a2 Improve compatiblity with HPUX on Itanium, patch by Duraid Madina 
llvm-svn: 19586
 2005-01-16 01:31:31 +00:00
Chris Lattner
1d0e1ffe02 Move some information out of LegalizeDAG into the generic Target interface. 
llvm-svn: 19581
 2005-01-16 01:10:58 +00:00
Chris Lattner
98611ce291 Add a new target-independent code generator flag. 
llvm-svn: 19567
 2005-01-15 06:00:32 +00:00
Chris Lattner
42dd85fc56 Add interfaces to lower varargs and return/frame address intrinsics. 
llvm-svn: 19406
 2005-01-09 00:00:31 +00:00
Chris Lattner
2a75da3851 Make LowerCallTo more generic and useful. 
llvm-svn: 19373
 2005-01-08 19:25:39 +00:00
Chris Lattner
01ed041b94 First draft of a new Target interface 
llvm-svn: 19323
 2005-01-07 07:44:22 +00:00
Chris Lattner
a008165daa Add some bits that can be set on instructions. Renumber existing bits so 
they are dense.  Add a virtual method that targets can choose to implement.

llvm-svn: 19242
 2005-01-02 02:28:31 +00:00
Chris Lattner
ed19f4fe7d Fix a warning 
llvm-svn: 18083
 2004-11-21 04:42:32 +00:00
Chris Lattner
ebb79ba538 Add new methods that a target should implement 
llvm-svn: 18060
 2004-11-20 23:50:02 +00:00
Chris Lattner
bae6c00a15 Allow targets to implement relocation support. 
llvm-svn: 18032
 2004-11-20 03:43:27 +00:00
Chris Lattner
dd0094e4ed Convert 'struct' to 'class' in various places to adhere to the coding standards 
and work better with VC++.  Patch contributed by Morten Ofstad!

llvm-svn: 17281
 2004-10-27 16:14:51 +00:00
Nate Begeman
2a64d462d9 Move destructor out of line to avoid vtable emission in every file that includes the header. Thanks to sabre. 
llvm-svn: 17278
 2004-10-27 06:00:53 +00:00
Nate Begeman
a6fafb1f64 Fix the build by eliminating some more dead code. That'll learn me not to listen to Reid 
llvm-svn: 17275
 2004-10-27 05:44:23 +00:00
Nate Begeman
3a55e171f1 Remove dead data member in MRegisterInfo class. Thanks sabre! 
llvm-svn: 17274
 2004-10-27 04:51:58 +00:00
Nate Begeman
4363d6203f Remove method getRegClass from MRegisterInfo, as it is no longer used. 
llvm-svn: 17243
 2004-10-26 06:00:31 +00:00
Chris Lattner
94f00d243c Remove a dead class. Thanks to Morten Ofstad for pointing this out. 
llvm-svn: 17222
 2004-10-25 19:07:43 +00:00
Chris Lattner
89a80a46f1 Be consistent with our naming 
llvm-svn: 16552
 2004-09-28 18:37:00 +00:00
Chris Lattner
c92b280e0d Capture information about whether the target instructions have delay slots 
llvm-svn: 16550
 2004-09-28 18:33:50 +00:00
Alkis Evlogimenos
adea49eec0 Use class instead of struct for defining classes. This unbreaks the 
build on windows. Patch contributed by Paolo Invernizzi!

llvm-svn: 16531
 2004-09-28 01:59:17 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00