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236 Commits

Author SHA1 Message Date
Owen Anderson 3a888f639e Convert TargetRegisterInfo's super-register checking to use a pre-computed hash table just like subregister checking does. 
llvm-svn: 68669
 2009-04-09 03:50:16 +00:00
Chris Lattner 3a88fa0ff8 "This adds a getName() method to TargetRegisterClass, just like in TargetRegisterInfo. 
This makes debugging register classes a bit easier."

Patch by Jakob Stoklund Olesen!

llvm-svn: 68400
 2009-04-03 20:25:41 +00:00
Evan Cheng 4a0bf66eb8 Eliminate a couple of fields from TargetRegisterClass: SubRegClasses and SuperRegClasses. These are not necessary. Also eliminate getSubRegisterRegClass and getSuperRegisterRegClass. These are slow and their results can change if register file names change. Just use TargetLowering::getRegClassFor() to get the right TargetRegisterClass instead. 
llvm-svn: 62762
 2009-01-22 09:10:11 +00:00
Dan Gohman ca0546facc Fun x86 encoding tricks: when adding an immediate value of 128, 
use a SUB instruction instead of an ADD, because -128 can be
encoded in an 8-bit signed immediate field, while +128 can't be.
This avoids the need for a 32-bit immediate field in this case.

A similar optimization applies to 64-bit adds with 0x80000000,
with the 32-bit signed immediate field.

To support this, teach tablegen how to handle 64-bit constants.

llvm-svn: 57663
 2008-10-17 01:33:43 +00:00
Evan Cheng c5af471be5 Indentation. 
llvm-svn: 56107
 2008-09-11 17:31:12 +00:00
Evan Cheng f66e1120c6 Change getSubReg semantics. It now returns zero if the specified register doesn't have a subreg of the specified index. 
llvm-svn: 56099
 2008-09-11 06:25:25 +00:00
Dan Gohman f6ac018926 Fix typos in (generated) comments. 
llvm-svn: 55916
 2008-09-08 16:29:36 +00:00
Cedric Venet cf7154b2d6 - small bug corrected: incorrect iterator type. 
- fix to please VS: add a return after an assert.

llvm-svn: 55380
 2008-08-26 19:49:04 +00:00
Chris Lattner 345dcce5a6 stabilize more printing, this doesn't cause a problem 
in the example attached to PR2590, but is a problem in general.

llvm-svn: 55361
 2008-08-26 06:50:46 +00:00
Chris Lattner ef820d2ef9 stablize SubRegsSet printing, part of PR2590 
llvm-svn: 55360
 2008-08-26 06:49:06 +00:00
Chris Lattner bd7ccd0162 Stabilize 'getDwarfRegNumFull' output to not depend on random memory 
orders, part of PR2590

llvm-svn: 55359
 2008-08-26 06:43:25 +00:00
Owen Anderson fa8b2ea41b Speed up addRegisterDead by adding more fast checks before performing the expensive 
subregister query, and by increasing the size of the subregister hashtable so
that there are fewer collisions.

llvm-svn: 54781
 2008-08-14 18:34:18 +00:00
Evan Cheng 4a898c0b11 TargetRegisterDesc::Name field is the same as the abstract register name. There is no need for targets to specify register names in addition to their AsmName's. 
llvm-svn: 53207
 2008-07-07 22:19:41 +00:00
Owen Anderson 3684013910 Make the subregister hashtable output more readable by wrapping the lines, 
and mark it const along with the associated changes to TargetRegisterInfo.

llvm-svn: 52966
 2008-07-01 17:34:38 +00:00
Owen Anderson 9e75cb2e7a Use delete[] instead of free on an array created with new[]. 
llvm-svn: 52960
 2008-07-01 15:56:31 +00:00
Owen Anderson 1760b92d27 Implement suggestions from Chris: 
- Use a more accurate heuristic for the size of the hashtable.
  - Use bitwise and instead of modulo since the size is a power of two.
  - Use new[] instead of malloc().

llvm-svn: 52951
 2008-07-01 07:02:30 +00:00
Owen Anderson 49cce257ae Replace the dynamically computed std::set lookup method for subregisters with a hashtable-based 
version that is computed by tblgen at the time LLVM is compiled.

llvm-svn: 52945
 2008-07-01 00:18:52 +00:00
Evan Cheng 5447e4331b Eliminate TargetRegisterDesc::ImmSubRegs. It's no longer in use. 
llvm-svn: 52892
 2008-06-30 07:32:56 +00:00
Dale Johannesen a2de8eab61 Fixes the last x86-64 test failure in compat.exp: 
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code.  The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing.  This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)

llvm-svn: 52750
 2008-06-26 01:51:13 +00:00
Duncan Sands 13237ac3b9 Wrap MVT::ValueType in a struct to get type safety 
and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).

llvm-svn: 52044
 2008-06-06 12:08:01 +00:00
Chuck Rose III c6a47e8a79 VisualStudio project files updated. #include <algorithm> added to make VisualStudio happy. Also had to undefine setjmp because of #include <csetjmp> turning setjmp into _setjmp in VisualStudio. 
llvm-svn: 49743
 2008-04-15 21:27:11 +00:00
Evan Cheng ba7126064a Sort sub-registers and super-registers lists according to super-sub register relations. e.g. X86::RAX sub-register list is EAX, AX, AL, AH (order of last two are not guaranteed). 
llvm-svn: 49714
 2008-04-15 07:56:03 +00:00
Dan Gohman c60c67fc37 Add explicit keywords. 
llvm-svn: 48801
 2008-03-25 22:06:05 +00:00
Chris Lattner 6aa4f515bb emit an ID # for each regclass ID. Chris doesn't like to have to count. 
llvm-svn: 48200
 2008-03-11 00:00:23 +00:00
Bill Wendling d7a258d325 Rename PrintableName to Name. 
llvm-svn: 47629
 2008-02-26 21:47:57 +00:00
Bill Wendling c24ea4fb41 Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool 
would have been a Godsend here!

llvm-svn: 47625
 2008-02-26 21:11:01 +00:00
Bill Wendling a7d1ed4c98 Some platforms use the same name for 32-bit and 64-bit registers (like 
%r3 on PPC) in their ASM files. However, it's hard for humans to read
during debugging. Adding a new field to the register data that lets you
specify a different name to be printed than the one that goes into the
ASM file -- %x3 instead of %r3, for instance.

llvm-svn: 47534
 2008-02-24 00:56:13 +00:00
Dan Gohman 3a4be0fdef Rename MRegisterInfo to TargetRegisterInfo. 
llvm-svn: 46930
 2008-02-10 18:45:23 +00:00
Chris Lattner 8cab021ca2 change getQualifiedName to be a global function. 
Split the pattern parsing code out from the dag isel emitter into it's own file.

No functionality change.

llvm-svn: 45632
 2008-01-05 22:25:12 +00:00
Chris Lattner 8adcd9f32e remove attributions from utils. 
llvm-svn: 45419
 2007-12-29 20:37:13 +00:00
Dale Johannesen 7a7085f6d3 Add parameter to getDwarfRegNum to permit targets 
to use different mappings for EH and debug info;
no functional change yet.
Fix warning in X86CodeEmitter.

llvm-svn: 44056
 2007-11-13 19:13:01 +00:00
Owen Anderson 55f4e5d2dd Fix on 64-bit machines. 
llvm-svn: 44001
 2007-11-12 00:56:04 +00:00
Anton Korobeynikov 4edfea438a Use TableGen to emit information for dwarf register numbers. 
This makes DwarfRegNum to accept list of numbers instead.
Added three different "flavours", but only slightly tested on x86-32/linux.
Please check another subtargets if possible,

llvm-svn: 43997
 2007-11-11 19:50:10 +00:00
Dale Johannesen fbe69d2cd6 Interchange Dwarf numbers of ESP and EBP on x86 Darwin. 
Much improvement in exception handling.

llvm-svn: 43794
 2007-11-07 00:25:05 +00:00
Evan Cheng f73fb6261b Add CopyCost to TargetRegisterClass. This specifies the cost of copying a value 
between two registers in the specific class.

llvm-svn: 42123
 2007-09-19 01:35:01 +00:00
Chandler Carruth 7132e00de7 This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. 
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.

llvm-svn: 40807
 2007-08-04 01:51:18 +00:00
Chuck Rose III 1a39a2d13d VStudio compiler errors and placing Function*->ExFunc map under ManagedStatic control. 
This commit fixes two things.  One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop.  I fixed these 
by renaming one of the two variables.  Additionally, I've made the Function*->ExFunc map in 
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown.  In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.

llvm-svn: 40558
 2007-07-27 18:26:35 +00:00
Christopher Lamb 2f3becc49c Have register info provide the inverse mapping of register->superregisters. PR1350 
llvm-svn: 40519
 2007-07-26 08:01:58 +00:00
Evan Cheng 59e5e118ac One additional field in TargetRegisterDesc. 
llvm-svn: 37760
 2007-06-27 17:09:34 +00:00
Evan Cheng 2e887c0b84 Add immediate sub-registers. 
llvm-svn: 37738
 2007-06-26 20:59:16 +00:00
Christopher Lamb f274efef9f Add support to tablegen for specifying subregister classes on a per register class basis. 
llvm-svn: 37572
 2007-06-13 22:20:15 +00:00
Bill Wendling 6357bf20fa Patches by Chuck Rose to unbreak V Studio builds. 
Thanks Chuck!

llvm-svn: 37428
 2007-06-04 23:52:59 +00:00
Dan Gohman a23ef8a8f2 Remove the operator<< for MVT::ValueType in preparation for MVT::ValueType 
being changed from an enum to an integer type, which can't have a custom
operator<< overload.

llvm-svn: 37412
 2007-06-04 16:11:03 +00:00
Nate Begeman fd788aafba A bit of feedback from Chris that I missed; error rather than asserting. 
llvm-svn: 36619
 2007-05-01 06:08:36 +00:00
Nate Begeman 27a625a74b llvm bug #1350, parts 1, 2, and 3. 
llvm-svn: 36618
 2007-05-01 05:57:02 +00:00
Evan Cheng f0c955b4dc Bug fix; add super-registers sets. 
llvm-svn: 36296
 2007-04-21 00:55:29 +00:00
Evan Cheng ac9fdde7f4 Add sub-registers sets. 
llvm-svn: 36278
 2007-04-20 21:13:46 +00:00
Chris Lattner 68a8bcce99 emit an enum value for the # of target registers. 
llvm-svn: 34624
 2007-02-26 03:34:38 +00:00
Bill Wendling 9bfb1e1f29 What should be the last unnecessary <iostream>s in the library. 
llvm-svn: 32333
 2006-12-07 22:21:48 +00:00
Jim Laskey 4e153f1b91 Use an enumeration to eliminate data relocations. 
llvm-svn: 29249
 2006-07-21 20:57:35 +00:00
Evan Cheng 2884b5cc93 Make sub- and super- register classes const. 
llvm-svn: 29200
 2006-07-19 05:58:18 +00:00
Evan Cheng aeccc6e676 Make sub- super- reg-class tables static. 
llvm-svn: 29190
 2006-07-18 22:18:31 +00:00
Evan Cheng 5d038cf802 Allow more use of iPTR in patterns. 
llvm-svn: 28790
 2006-06-15 00:16:37 +00:00
Chris Lattner aa2372562e Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447
 2006-05-24 17:04:05 +00:00
Evan Cheng fe72285033 Don't generate getCalleeSaveReg and getCalleeSaveRegClasses anymore. 
llvm-svn: 28376
 2006-05-18 00:08:46 +00:00
Evan Cheng 229a6d0026 Also add super- register classes info. 
llvm-svn: 28221
 2006-05-11 07:30:26 +00:00
Evan Cheng 5e7ba0b049 Add sub-register class information. 
llvm-svn: 28195
 2006-05-09 06:34:26 +00:00
Jim Laskey f0729b4067 Add dwarf register numbering to register data. 
llvm-svn: 27081
 2006-03-24 21:15:58 +00:00
Duraid Madina ccb1aebcd3 This gets most of the backends building with HP HappyC++. 
llvm-svn: 25029
 2005-12-27 10:56:22 +00:00
Nate Begeman 006bb04f3a 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
Chris Lattner 742606ad30 Switch more code over to using getValueAsListOfDefs. Look at all the -'s. :) 
llvm-svn: 24074
 2005-10-28 22:59:53 +00:00
Chris Lattner d4ff3c1324 Emit the value type for each register class. 
llvm-svn: 23584
 2005-10-02 06:23:37 +00:00
Chris Lattner c9f4219cfc Rename MRegisterDesc -> TargetRegisterDesc for consistency 
llvm-svn: 23564
 2005-09-30 17:49:27 +00:00
Chris Lattner 3e020bb619 remove some more initializers 
llvm-svn: 23562
 2005-09-30 17:41:05 +00:00
Chris Lattner ddc69bbbba trim down the target info structs now that we have a preferred spill register class for each callee save register 
llvm-svn: 23560
 2005-09-30 17:35:22 +00:00
Chris Lattner da6fcc9f49 Compute a preferred spill register class for each callee-save register 
llvm-svn: 23553
 2005-09-30 06:44:45 +00:00
Chris Lattner 2a6fd61dfc allow regs to be in multiple reg classes 
llvm-svn: 23540
 2005-09-30 01:33:48 +00:00
Chris Lattner 8ed3d0a0ce Expose the derived register classes to the public header, allowing them 
to be accessed.

llvm-svn: 22930
 2005-08-19 20:23:42 +00:00
Chris Lattner 73ec2cb0f5 Split register class "Methods" into MethodProtos and MethodBodies 
llvm-svn: 22928
 2005-08-19 19:12:51 +00:00
Chris Lattner 74f60c306d Refactor to use Target.getRegisterClasses consistently, which provides 
anonymous regclass definition renaming.

Change the generated code to emit register classes as properly namespace
qualified entities like everything else.

expose the actual class definition as an object, though this isn't quite
usable yet.

llvm-svn: 22920
 2005-08-19 18:47:59 +00:00
Misha Brukman 650ba8eb56 Remove trailing whitespace 
llvm-svn: 21428
 2005-04-22 00:00:37 +00:00
Chris Lattner e8e81a2941 Revamp the Register class, and allow the use of the RegisterGroup class to 
specify aliases directly in register definitions.

Patch contributed by Jason Eckhardt!

llvm-svn: 16330
 2004-09-14 04:17:02 +00:00
Reid Spencer 7c16caa336 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
Chris Lattner beadefde19 Make alignment be in bits, just like size is 
llvm-svn: 15969
 2004-08-21 20:00:36 +00:00
Chris Lattner a6d34d9e19 Infer the spillsize/alignment of a register based on the register classes 
it is embedded into.

llvm-svn: 15966
 2004-08-21 19:42:03 +00:00
Chris Lattner d3244d9cec Support "Methods" in register classes in CodgeGenRegisterClass 
llvm-svn: 15965
 2004-08-21 19:21:21 +00:00
Chris Lattner 2a86fab933 Start parsing register classes into a more structured form 
llvm-svn: 15961
 2004-08-21 04:05:00 +00:00
Chris Lattner c9d99efdd3 Do not #include files into the llvm namespace 
llvm-svn: 15849
 2004-08-17 03:08:28 +00:00
Chris Lattner 8af61ddb96 Use CodeGenRegister class to make reading in of register information more 
systematic.

llvm-svn: 15805
 2004-08-16 01:10:21 +00:00
Chris Lattner 0bbf7005f5 Remove awareness of isDummyClass 
llvm-svn: 15789
 2004-08-15 23:04:13 +00:00
Chris Lattner fce9603387 Rename CodeGenWrappers.(cpp|h) -> CodeGenTarget.(cpp|h) 
llvm-svn: 15382
 2004-08-01 04:04:35 +00:00
Chris Lattner 6847866400 Finegrainify namespacification 
llvm-svn: 15381
 2004-08-01 03:55:39 +00:00
Brian Gaeke 960707c335 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
John Criswell d3032037f1 Added LLVM copyright header. 
llvm-svn: 9305
 2003-10-20 20:20:30 +00:00
Alkis Evlogimenos 5f1f337d95 Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefs 
and TargetInstrDescriptor::ImplicitUses to always point to a null
terminated array and never be null. So there is no need to check for
pointer validity when iterating over those sets. Code that looked
like:

if (const unsigned* AS = TID.ImplicitDefs) {
  for (int i = 0; AS[i]; ++i) {
    // use AS[i]
  }
}

was changed to:

for (const unsigned* AS = TID.ImplicitDefs; *AS; ++AS) {
  // use *AS
}

llvm-svn: 8960
 2003-10-08 05:20:08 +00:00
Chris Lattner f5bd1b7a8e Move support/tools/* back into utils 
llvm-svn: 8875
 2003-10-05 19:27:59 +00:00