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855 Commits

Author SHA1 Message Date
Dale Johannesen
ef488c7b0e Add getABITypeSize, getABITypeSizeInBits 
llvm-svn: 42488
 2007-10-01 16:03:14 +00:00
Evan Cheng
f3c130a8b6 Enabling new condition code modeling scheme. 
llvm-svn: 42459
 2007-09-29 00:00:36 +00:00
Dan Gohman
50747737a5 TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets 
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419
 2007-09-27 23:12:31 +00:00
Evan Cheng
0f9e307353 - Added MRegisterInfo::getCrossCopyRegClass() hook. For register classes where reg to reg copies are not possible, this returns another register class which registers in the specified register class can be copied to (and copy back from). 
- X86 copyRegToReg() now supports copying between EFLAGS and GR32 / GR64 registers.

llvm-svn: 42372
 2007-09-26 21:31:07 +00:00
Evan Cheng
5f9e291240 Allow copyRegToReg to emit cross register classes copies. 
Tested with "make check"!

llvm-svn: 42346
 2007-09-26 06:25:56 +00:00
Evan Cheng
6bfaf13dd9 New temporary option -new-cc-modeling-scheme to test the new cc modeling scheme. 
llvm-svn: 42283
 2007-09-25 01:50:04 +00:00
Dan Gohman
b642a1ddf8 Merge hasDotLoc and hasDotFile into hasDotLocAndDotFile since .loc and .file 
aren't really usable without each other. 

llvm-svn: 42274
 2007-09-24 21:09:53 +00:00
Dale Johannesen
ea6ffa0b36 Fix PR 1681. When X86 target uses +sse -sse2, 
keep f32 in SSE registers and f64 in x87.  This
is effectively a new codegen mode.
Change addLegalFPImmediate to permit float and
double variants to do different things.
Adjust callers.

llvm-svn: 42246
 2007-09-23 14:52:20 +00:00
Evan Cheng
859720c33b 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
Evan Cheng
827f269fac Added getNumDefs(). 
llvm-svn: 41901
 2007-09-13 00:16:29 +00:00
Bill Wendling
bde1aacffa Add accessor method. 
llvm-svn: 41854
 2007-09-11 17:24:38 +00:00
Bill Wendling
74888e63e7 Add a bool to indicate if we should set the "indirect encoding" bit in the Dwarf 
information for EH.

llvm-svn: 41852
 2007-09-11 17:20:55 +00:00
Bill Wendling
3c6a8b2814 The personality function on Darwin needs a global stub. We then refer to 
that global stub instead of doing the ".set" thingy we were doing before.

llvm-svn: 41838
 2007-09-11 08:27:17 +00:00
Rafael Espindola
8c57e70f93 Add support for having different alignment for objects on call frames. 
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768
 2007-09-07 14:52:14 +00:00
Owen Anderson
4b71e55287 Add lengthof and endof templates that hide a lot of sizeof computations. 
Patch by Sterling Stein!

llvm-svn: 41758
 2007-09-07 04:06:50 +00:00
Evan Cheng
58ea935f6f Add a variant of foldMemoryOperand to fold any load / store, not just load / store from / to stack slots. 
llvm-svn: 41597
 2007-08-30 05:52:20 +00:00
Dale Johannesen
e91a908971 Change LegalFPImmediates to use APFloat. 
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.

llvm-svn: 41587
 2007-08-30 00:23:21 +00:00
Dan Gohman
e2c92effea Add explicit keywords and remove spurious trailing semicolons. 
llvm-svn: 41482
 2007-08-27 14:50:10 +00:00
Chris Lattner
1e089aac3a rename isOperandValidForConstraint to LowerAsmOperandForConstraint, 
changing the interface to allow for future changes.

llvm-svn: 41384
 2007-08-25 00:47:38 +00:00
Rafael Espindola
68d95ff2b1 Partial implementation of calling functions with byval arguments: 
*) The needed information is propagated to the DAG
 *) The X86-64 backend detects it and aborts

llvm-svn: 41179
 2007-08-20 15:18:24 +00:00
Reid Spencer
8c5c7c8453 Change casts from old style to new style. This helps document the details 
better, gives the compiler a chance to validate the cast and reduces warnings
if the user turns on -Wold-style-cast option.

llvm-svn: 41033
 2007-08-12 08:12:35 +00:00
Christopher Lamb
e0c9bd8d2e Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there. 
llvm-svn: 41005
 2007-08-10 21:11:55 +00:00
Dale Johannesen
a1340d5916 Update per review comments. 
llvm-svn: 40965
 2007-08-09 17:27:48 +00:00
Dale Johannesen
79551baaad long double 9 of N. This finishes up the X86-32 bits 
(constants are still not handled).  Adds ConvertActions
to control fp-to-fp conversions (these are currently
defaulted for all other targets, so no changes there).

llvm-svn: 40958
 2007-08-09 01:04:01 +00:00
Reid Spencer
3e54e72ef1 Fix minor doxygen nits. 
llvm-svn: 40854
 2007-08-05 20:06:04 +00:00
Evan Cheng
8f126e59f5 Added TargetInstrDescriptor::numDefs - num of results. 
llvm-svn: 40709
 2007-08-02 00:20:17 +00:00
Dan Gohman
7dd04fb91c More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Dan Gohman
51e7be7b8f Fix the comments for the 'fast' parameter in addPassesToEmitFile. 
llvm-svn: 40592
 2007-07-30 15:04:59 +00:00
Dan Gohman
23f9a3ad3b Fix the comment for getClosestTargetForJIT to reflect the fact that 
it does not have a Module parameter.

llvm-svn: 40590
 2007-07-30 14:58:59 +00:00
Dan Gohman
75473b49ea More explicit keywords. 
llvm-svn: 40589
 2007-07-30 14:51:59 +00:00
Duncan Sands
e8bb2c6d32 Support for trampolines, except for X86 codegen which is 
still under discussion.

llvm-svn: 40549
 2007-07-27 12:58:54 +00:00
Christopher Lamb
7bef240f69 Have register info provide the inverse mapping of register->superregisters. PR1350 
llvm-svn: 40519
 2007-07-26 08:01:58 +00:00
Christopher Lamb
9a0d88efde Add target independent MachineInstr's to represent subreg insert/extract in MBB's. PR1350 
llvm-svn: 40518
 2007-07-26 07:48:21 +00:00
Evan Cheng
cdb4e7949f Added -print-emitted-asm to print out JIT generated asm to cerr. 
llvm-svn: 40123
 2007-07-20 21:56:13 +00:00
Dan Gohman
0ba554c0c8 Fix comments about vectors to use the current wording. 
llvm-svn: 39921
 2007-07-16 14:29:03 +00:00
Anton Korobeynikov
5635277c36 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855
 2007-07-14 14:06:15 +00:00
Evan Cheng
6125079452 Add OptionalDefOperand. Remove clobbersPred. Also add DefinesPredicate to be used by if-converter. 
llvm-svn: 38499
 2007-07-10 18:06:29 +00:00
Dan Gohman
3f7558673e Fix a typo in a comment. 
llvm-svn: 38456
 2007-07-09 15:15:24 +00:00
Dan Gohman
61966b8551 Remove redundant declarations. 
llvm-svn: 37946
 2007-07-06 13:59:28 +00:00
Dan Gohman
c6bdcfa8c0 Add new TargetLowering code to provide the final register type that an 
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.

llvm-svn: 37781
 2007-06-28 23:29:44 +00:00
Dan Gohman
cb89e19a6d Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. 
llvm-svn: 37758
 2007-06-27 16:08:04 +00:00
Evan Cheng
30adb50aaf Add comment. 
llvm-svn: 37741
 2007-06-26 21:19:07 +00:00
Evan Cheng
ac10d44736 Add immediate sub-registers. 
llvm-svn: 37738
 2007-06-26 20:59:16 +00:00
Dan Gohman
eea90f90af Replace ?: with if statements, for clarity. 
llvm-svn: 37735
 2007-06-26 16:19:08 +00:00
Dan Gohman
fb8c9beba3 Simplify the expression for TargetLowering::isTypeLegal. 
llvm-svn: 37732
 2007-06-26 15:16:27 +00:00
Dan Gohman
9cbc3fb1ab Revert the earlier change that removed the M_REMATERIALIZABLE machine 
instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).

llvm-svn: 37728
 2007-06-26 00:48:07 +00:00
Dan Gohman
354f02e03d Generalize MVT::ValueType and associated functions to be able to represent 
extended vector types. Remove the special SDNode opcodes used for pre-legalize
vector operations, and the special MVT::Vector type used with them. Adjust
lowering and legalize to work with the normal SDNode kinds instead, and to
use the normal MVT functions to work with vector types instead of using the
two special operands that the pre-legalize nodes held.

This allows pre-legalize and post-legalize DAGs, and the code that operates
on them, to be more consistent. Pre-legalize vector operators can be handled
more consistently with scalar operators. And, -view-dag-combine1-dags and
-view-legalize-dags now look prettier for vector code.

llvm-svn: 37719
 2007-06-25 16:23:39 +00:00
Dan Gohman
a62327ea40 Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from 
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.

llvm-svn: 37704
 2007-06-22 14:59:07 +00:00
Dan Gohman
1815e9bdb3 Rename TargetLowering::getNumElements and friends to 
TargetLowering::getNumRegisters and similar, to avoid confusion with
the actual number of elements for vector types.

llvm-svn: 37687
 2007-06-21 14:42:22 +00:00
Dan Gohman
b60d8a92c9 Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad 
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.

llvm-svn: 37644
 2007-06-19 01:48:05 +00:00
Evan Cheng
4358a7f1e9 Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37642
 2007-06-19 01:21:41 +00:00
Evan Cheng
34a6cb0b2e Added CanBeDuplicated(). It returns true if an instruction can be safely duplicated (e.g. during ifcvt). 
llvm-svn: 37605
 2007-06-15 21:13:54 +00:00
Dale Johannesen
62f49dd524 Do not treat FP_REG_KILL as terminator in branch analysis (X86). 
llvm-svn: 37578
 2007-06-14 22:03:45 +00:00
Dan Gohman
35f2b4d716 Add a target hook to allow loads from constant pools to be rematerialized, and an 
implementation for x86.

llvm-svn: 37576
 2007-06-14 20:50:44 +00:00
Dan Gohman
74c92798d8 Eliminate some redundant newlines in asm output. 
llvm-svn: 37574
 2007-06-14 15:00:27 +00:00
Christopher Lamb
68017d151b 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
Evan Cheng
1a6c0341fd Add a utility routine to check for unpredicated terminator instruction. 
llvm-svn: 37528
 2007-06-08 21:59:56 +00:00
Evan Cheng
4de6599e83 Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions. 
llvm-svn: 37464
 2007-06-06 10:13:55 +00:00
Evan Cheng
0dc7a8cac6 Target specific ifcvt code duplication limit. 
llvm-svn: 37384
 2007-06-01 08:25:24 +00:00
Dale Johannesen
1ba04f7d87 Make stable_sort in tail merging actually be stable (it never was, but didn't 
matter until my last change).  Reenable tail merging by default.

llvm-svn: 37354
 2007-05-29 23:47:50 +00:00
Evan Cheng
d8b25a2091 Add missing const qualifiers. 
llvm-svn: 37341
 2007-05-29 18:35:22 +00:00
Devang Patel
3eb349409f Disable Tail Merging for now. 
llvm-svn: 37329
 2007-05-25 01:00:24 +00:00
Evan Cheng
f2d1d0124e Add a couple of target hooks for predication. 
llvm-svn: 37306
 2007-05-23 07:19:12 +00:00
Dale Johannesen
738f94210c name change requested by review of previous patch 
llvm-svn: 37289
 2007-05-22 18:31:04 +00:00
Dale Johannesen
fe0fe14411 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.

llvm-svn: 37285
 2007-05-22 17:14:46 +00:00
Evan Cheng
7d3f771e9c Consistency. 
llvm-svn: 37274
 2007-05-22 01:21:58 +00:00
Evan Cheng
234aab208a RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted. 
llvm-svn: 37192
 2007-05-18 00:05:48 +00:00
Evan Cheng
3ce37e8d78 Fix comment. 
llvm-svn: 37191
 2007-05-18 00:00:30 +00:00
Evan Cheng
dc9e574073 Remove. Not needed. 
llvm-svn: 37139
 2007-05-17 00:11:35 +00:00
Evan Cheng
3163b77d5e Add target hook to specify block size limit for if-conversion. 
llvm-svn: 37134
 2007-05-16 23:45:53 +00:00
Evan Cheng
973f4a19cb PredicateInstruction returns true if the operation was successful. 
llvm-svn: 37124
 2007-05-16 21:53:07 +00:00
Evan Cheng
3b10540b5e Rename M_PREDICATED to M_PREDICABLE; Move TargetInstrInfo::isPredicatable() to MachineInstr::isPredicable(). 
llvm-svn: 37115
 2007-05-16 20:43:42 +00:00
Evan Cheng
770584a8cd Fix comments. 
llvm-svn: 37096
 2007-05-16 05:09:34 +00:00
Evan Cheng
7fe6d7cb7e Add TargetInstrInfo predication hooks. 
llvm-svn: 37091
 2007-05-16 01:58:56 +00:00
Evan Cheng
71c4d42bd7 All operands that made up of the predicate operands are maked M_PREDICATE_OPERAND. 
llvm-svn: 37062
 2007-05-15 01:21:27 +00:00
Nick Lewycky
c2306ff5b4 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Anton Korobeynikov
ce48606d7a Emit sections/directives in the proper order. This fixes PR1376. Also, 
some small cleanup was made.

llvm-svn: 36780
 2007-05-05 09:04:50 +00:00
Bill Wendling
dc82c5a195 Add an "implies" field to features. This indicates that, if the current 
feature is set, then the features in the implied list should be set also.
The opposite is also enforced: if a feature in the implied list isn't set,
then the feature that owns that implies list shouldn't be set either.

llvm-svn: 36756
 2007-05-04 20:38:40 +00:00
Devang Patel
cd45427a87 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Chris Lattner
a3d01187b7 Add a new option. 
llvm-svn: 36657
 2007-05-03 00:16:07 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Anton Korobeynikov
6e6bfcaf4d Fix couple of bugs connected with eh info: 
1. Correct output offsets on Linux
2. Fix "style" of personality function. It shouldn't be indirect.

llvm-svn: 36633
 2007-05-01 22:23:12 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Evan Cheng
65f0ba62d5 Add SPAdj parameter to account for call frame setup SP adjustment. 
llvm-svn: 36623
 2007-05-01 08:58:27 +00:00
Nate Begeman
767ee95d29 llvm bug #1350, parts 1, 2, and 3. 
llvm-svn: 36618
 2007-05-01 05:57:02 +00:00
Evan Cheng
34e61fc3cd Added hook hasReservedCallFrame(). It returns true if the call frame is 
included as part of the stack frame.

llvm-svn: 36606
 2007-05-01 00:47:46 +00:00
Dale Johannesen
1ee5f128f6 Make ARM-specific version of getInlineAsmLength 
llvm-svn: 36572
 2007-04-29 19:17:45 +00:00
Anton Korobeynikov
3d95e52ea2 Implement protected visibility. This partly implements PR1363. Linker 
should be taught to deal with protected symbols.

llvm-svn: 36565
 2007-04-29 18:35:00 +00:00
Chris Lattner
5bc24967c1 add a default parameter 
llvm-svn: 36529
 2007-04-28 05:42:38 +00:00
Dan Gohman
bda4470e76 Fix a typo in a comment. 
llvm-svn: 36485
 2007-04-26 19:40:56 +00:00
Evan Cheng
46096a692c Test if a register is sub- or super-register of another. 
llvm-svn: 36433
 2007-04-25 07:24:50 +00:00
Evan Cheng
05a82b68e8 Add super-register set. 
llvm-svn: 36295
 2007-04-21 00:54:06 +00:00
Lauro Ramos Venancio
bc32d90b46 Implement "general dynamic", "initial exec" and "local exec" TLS models for 
X86 32 bits.

llvm-svn: 36283
 2007-04-20 21:38:10 +00:00
Evan Cheng
1835371d44 Add sub-registers set accessor. 
llvm-svn: 36282
 2007-04-20 21:28:05 +00:00
Evan Cheng
9ade37c2f1 Add sub-register sets. 
llvm-svn: 36277
 2007-04-20 21:11:22 +00:00
Evan Cheng
023342b277 Change getAllocatableSet() so it returns allocatable registers for a specific register class. 
llvm-svn: 36215
 2007-04-17 20:23:34 +00:00
Anton Korobeynikov
f3e62a428a Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.

llvm-svn: 36146
 2007-04-16 18:10:23 +00:00
Chris Lattner
461f7ed33b remove dead target hooks. 
llvm-svn: 35847
 2007-04-09 23:34:08 +00:00
Chris Lattner
ae6e2c0ee5 remove some dead target hooks, subsumed by isLegalAddressingMode 
llvm-svn: 35840
 2007-04-09 22:27:04 +00:00
Chris Lattner
b31e6eee0c add a default ctor for AddrMode. 
llvm-svn: 35832
 2007-04-09 21:18:34 +00:00
Chris Lattner
8747705792 switch TL::getValueType to use MVT::getValueType. 
llvm-svn: 35527
 2007-03-31 04:05:24 +00:00
Chris Lattner
143464e05f add one addressing mode description hook to rule them all. 
llvm-svn: 35520
 2007-03-30 23:14:50 +00:00
Evan Cheng
a55449c051 Remove isLegalAddressImmediate. 
llvm-svn: 35406
 2007-03-28 01:53:55 +00:00
Chris Lattner
b19069959d switch TargetLowering::getConstraintType to take the entire constraint, 
not just the first letter.  No functionality change.

llvm-svn: 35322
 2007-03-25 02:14:49 +00:00
Dale Johannesen
44c0a5d545 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Dale Johannesen
3e422e3b49 do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)

llvm-svn: 35227
 2007-03-20 21:54:54 +00:00
Evan Cheng
41f4f032ee Added MRegisterInfo hook to re-materialize an instruction. 
llvm-svn: 35205
 2007-03-20 08:09:38 +00:00
Duncan Sands
90c42a15d5 Fix obvious typo in comment. 
llvm-svn: 35164
 2007-03-19 14:25:02 +00:00
Evan Cheng
2081cf96ed Add a TargetInstrDescriptor flag to mark an instruction as "re-materializable". 
It means the instruction can be easily re-materialized at any point. e.g.
constant generation, load from constantpool.

llvm-svn: 35158
 2007-03-19 06:19:16 +00:00
Evan Cheng
ce8b779c6c Added isLegalAddressExpression hook to test if the given expression can be 
folded into target addressing mode for the given type.

llvm-svn: 35121
 2007-03-16 08:42:32 +00:00
Evan Cheng
0408dc0d37 These forward declarations are not needed. 
llvm-svn: 35120
 2007-03-16 08:41:06 +00:00
Jeff Cohen
b19ec59b5c Fix for VS 2005 problem supplied by Morten Ofstad. 
llvm-svn: 35098
 2007-03-14 15:25:21 +00:00
Evan Cheng
f132fa5bba More flexible TargetLowering LSR hooks for testing whether an immediate is 
a legal target address immediate or scale.

llvm-svn: 35071
 2007-03-12 23:26:27 +00:00
Evan Cheng
6bf2f3665e Add ReadOnlySection directive. 
llvm-svn: 35015
 2007-03-08 01:00:38 +00:00
Anton Korobeynikov
85d6c1ebad Refactoring of formal parameter flags. Enable properly use of 
zext/sext/aext stuff.

llvm-svn: 35008
 2007-03-07 16:25:09 +00:00
Anton Korobeynikov
090c2d50ea Fix DWARF debugging information on x86/Linux and (hopefully) 
Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000
 2007-03-07 02:47:57 +00:00
Evan Cheng
b0c0d22f30 Minor interface change. 
llvm-svn: 34967
 2007-03-06 10:05:14 +00:00
Nate Begeman
2288ec3331 More Mach-O writer improvements. 
llvm-svn: 34740
 2007-02-28 07:40:50 +00:00
Evan Cheng
db591ecaa8 Make requiresRegisterScavenging determination on a per MachineFunction basis. 
llvm-svn: 34711
 2007-02-28 00:59:19 +00:00
Evan Cheng
ee2e5de4fb MRegisterInfo disowns RegScavenger. It's immutable. 
llvm-svn: 34706
 2007-02-28 00:17:36 +00:00
Evan Cheng
11d5b762b9 Let MRegisterInfo owns RegScavenger. 
llvm-svn: 34689
 2007-02-27 21:08:07 +00:00
Evan Cheng
df6be7d4fc Temporay hook to enable register scavening for specific targets only. 
llvm-svn: 34513
 2007-02-23 01:07:04 +00:00
Jim Laskey
655bea55fe Simplify lowering and selection of exception ops. 
llvm-svn: 34491
 2007-02-22 15:37:19 +00:00
Jim Laskey
b57ee1fc37 Simplify lowering and selection of exception ops. 
llvm-svn: 34488
 2007-02-22 14:56:36 +00:00
Jim Laskey
6a937ad320 Support to provide exception and selector registers. 
llvm-svn: 34482
 2007-02-21 22:54:50 +00:00
Jim Laskey
d1e09aa74a Add TAI field for exception table section. 
llvm-svn: 34477
 2007-02-21 22:43:40 +00:00
Reid Spencer
78e1ec0122 Implement support for non-standard integer bit widths of any size. The 
rules alignment is to pick the alignment that corresponds to the smallest
specified alignment that is larger than the bit width of the type or the
largest specified integer alignment if none are larger than the bitwidth
of the type. For the byte size, the size returned is the next larger
multiple of the alignment for that type (using the above rule). This patch
also changes bit widths from "short" to "uint32_t" to ensure there are
enough bits to specify any bit width that LLVM can handle (currently 2^23);
16-bits isn't enough.

llvm-svn: 34431
 2007-02-19 22:35:00 +00:00
Evan Cheng
e4ab9c032b Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
llvm-svn: 34428
 2007-02-19 21:49:54 +00:00
Reid Spencer
b27fcf3482 For PR1207: 
Revert patches that caused the problem. Evan, please investigate and reapply
when you've discovered the problem.

llvm-svn: 34399
 2007-02-19 03:20:00 +00:00
Evan Cheng
8f7896bacc - Added regsOverlap() to test if two registers overlap. Or in case they are 
virtual registers, test if they the same.
- Added a virtual method to return target specific reserved registers, e.g. SP.

llvm-svn: 34375
 2007-02-17 11:04:35 +00:00
Chris Lattner
14496ddfd4 Do not dereference invalid ranges. Generalize targetdata alignment model. 
This fixes the UnitTests/Vector/sumarray-dbl regressions.

llvm-svn: 34358
 2007-02-17 00:41:42 +00:00
Reid Spencer
c5814f843c For PR1195: 
PACKED_ALIGN -> VECTOR_ALIGN

llvm-svn: 34330
 2007-02-15 22:07:05 +00:00
Evan Cheng
28eaad250f Use BitVector instead of vector<bool> which can be extremely slow. 
llvm-svn: 34302
 2007-02-15 05:59:24 +00:00
Reid Spencer
e7ff3305d6 For PR1195: 
Change use of "packed" term to "vector" in comments, strings, variable
names, etc.

llvm-svn: 34300
 2007-02-15 03:39:18 +00:00
Reid Spencer
55e4e98a2a For PR1195: 
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.

llvm-svn: 34293
 2007-02-15 02:26:10 +00:00
Reid Spencer
ca25d2b273 Fixed packed structure breakage from earlier TargetData patch; applied 
Chris Lattner's code style suggestions.

Patch by Scott Michel!

llvm-svn: 34292
 2007-02-15 02:11:06 +00:00
Chris Lattner
5cece73ec8 Generalize TargetData strings, to support more interesting forms of data. 
Patch by Scott Michel.

llvm-svn: 34266
 2007-02-14 05:52:17 +00:00
Chris Lattner
fded2d41c1 remove dead method. 
llvm-svn: 34164
 2007-02-10 20:37:40 +00:00
Chris Lattner
863b62eb50 eliminate the std::vector from StructLayout, allocating the elements immediately 
after the StructLayout object in memory.  This marginally improves locality,
speeding up -load-vn -gcse by ~0.8%.

llvm-svn: 34158
 2007-02-10 20:15:41 +00:00
Chris Lattner
109373538b encapsulate the rest of the StructLayout members. 
llvm-svn: 34157
 2007-02-10 19:59:22 +00:00
Chris Lattner
9dafd9fe90 Privatize StructLayout::MemberOffsets, adding an accessor 
llvm-svn: 34156
 2007-02-10 19:55:17 +00:00
Chris Lattner
eaceeb61fb Change TargetData::getIndexedOffset interface to not require indices 
in a vector.

llvm-svn: 34153
 2007-02-10 19:33:15 +00:00
Evan Cheng
1b155ac243 Move SimplifySetCC to TargetLowering and allow it to be shared with legalizer. 
llvm-svn: 34065
 2007-02-08 22:13:59 +00:00
Bill Wendling
d5788e1f87 Added new method to finish up the addition of passes to emit files. This 
allows us to split that method into two so that we can optionally call a
concrete function to add a writer. Removed moribund addObjectWriter()
method.

llvm-svn: 34030
 2007-02-08 01:34:45 +00:00
Bill Wendling
e60f8624f5 Added GetTargetRelocation method. 
llvm-svn: 33815
 2007-02-03 02:38:57 +00:00
Jim Laskey
52a12383a4 Support for non-landing pad exception handling. 
llvm-svn: 33755
 2007-02-01 16:31:34 +00:00
Anton Korobeynikov
c469cbc2e7 Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only 
affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752
 2007-02-01 08:39:52 +00:00
Chris Lattner
a24a3aaa94 rename DenseMap to IndexedMap. 
llvm-svn: 33749
 2007-02-01 05:32:05 +00:00
Evan Cheng
3ec2e08a37 Allow the target to override the ISD::CondCode that's to be used to test the 
result of the comparison libcall against zero.

llvm-svn: 33701
 2007-01-31 09:29:11 +00:00
Nate Begeman
dc46021355 Finish off bug 680, allowing targets to custom lower frame and return 
address nodes.

llvm-svn: 33636
 2007-01-29 22:58:52 +00:00
Jim Laskey
705f60ece9 Flag to control exception handling. 
llvm-svn: 33628
 2007-01-29 20:48:32 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC. 
llvm-svn: 33622
 2007-01-29 18:51:14 +00:00
Anton Korobeynikov
611d5e2eda Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
 2007-01-28 13:31:35 +00:00
Bill Wendling
671eb167eb Accessor for the TargetELFWriterInfo class object. 
llvm-svn: 33572
 2007-01-27 02:55:04 +00:00
Bill Wendling
94f0477a62 The TargetELFWriterInfo class holds target-specific information for the ELF writer. 
llvm-svn: 33570
 2007-01-27 02:53:50 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Evan Cheng
b64363a085 Added a MRegisterInfo hook that tells PEI the target is responsible for 
rounding the stack frame to a multiple of stack alignment.

llvm-svn: 33504
 2007-01-25 22:12:41 +00:00
Jim Laskey
a67f14502d Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves 
by value so that clean up is less confusing (these vectors tend to be small.)

llvm-svn: 33488
 2007-01-24 18:45:13 +00:00
Bill Wendling
c0ecd3ff91 Make ivars private and use getters. Have the MachOWriter return "Mach-O 
Writer" for the pass name.

llvm-svn: 33483
 2007-01-24 07:13:56 +00:00
Evan Cheng
bfd7e70770 Renamed getTypeAlignmentShift() to getPreferredTypeAlignmentShift(). 
llvm-svn: 33482
 2007-01-24 07:03:39 +00:00
Bill Wendling
5e72af1267 A virtual method to return the TargetMachOWriterInfo object. This returns 
a real value in derived classes, of course.

llvm-svn: 33477
 2007-01-24 03:38:14 +00:00
Bill Wendling
24e03bd501 New "TargetMachOWriterInfo" class. It holds target-specific information 
that the MachOWriter needs in order to do its writing stuff 'n things.

llvm-svn: 33475
 2007-01-24 03:36:05 +00:00
Evan Cheng
d9d93832b0 hasFP() is now a virtual method of MRegisterInfo. 
llvm-svn: 33455
 2007-01-23 00:57:47 +00:00
Evan Cheng
be74967ace Update comment. 
llvm-svn: 33450
 2007-01-22 23:14:52 +00:00
Reid Spencer
c5140714bc Implement a getTypeSizeInBits method. This helps in transforms that want 
to ensure the bit size of a type is identical before proceeding.

llvm-svn: 33413
 2007-01-20 23:32:04 +00:00
Owen Anderson
4de8fa6334 TargetData assumes (and some regression tests depend on it) that the size of 
an unspecified datatype in the datalayout is capped by the size of a pointer.

llvm-svn: 33411
 2007-01-20 23:07:13 +00:00
Chris Lattner
9df9e3e57b Teach TargetData to handle 'preferred' alignment for each target, and use 
these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409
 2007-01-20 22:35:55 +00:00
Chris Lattner
e0c1ba6269 add new JumpTableSpecialLabelPrefix hook to asmprinter for jumptable emission. 
llvm-svn: 33314
 2007-01-18 01:12:56 +00:00
Chris Lattner
6ab744575c document that BSSSection can be null. 
Add new ZeroFillDirective directive.

llvm-svn: 33301
 2007-01-17 17:42:30 +00:00
Anton Korobeynikov
cac2ebfdee Document flag 
llvm-svn: 33300
 2007-01-17 10:40:54 +00:00
Anton Korobeynikov
2509765bef * Fix one more bug in PIC codegen: extra load is needed for *all* 
non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

llvm-svn: 33299
 2007-01-17 10:33:08 +00:00
Bill Wendling
6cf6bb2d24 Revert patch. 
llvm-svn: 33298
 2007-01-17 09:06:13 +00:00
Chris Lattner
fb5249893e make doxygen comment much better. Patch by B. Scott Michel! 
llvm-svn: 33294
 2007-01-17 07:28:48 +00:00
Bill Wendling
ec27b2bc2f The TargetObjInfo object goes here. 
llvm-svn: 33288
 2007-01-17 03:48:29 +00:00
Bill Wendling
5789edd7f5 New "TargetObjInfo" class. This holds information that the object writers will 
use to write things to the file. It's abstract so each target should implement
its own version for each writer type.

llvm-svn: 33286
 2007-01-17 03:46:30 +00:00
Bill Wendling
cfdd717db5 Fix for PR1095: 
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

llvm-svn: 33246
 2007-01-16 03:42:04 +00:00
Chris Lattner
a8f6e90cac add a new HiddenDirective member for handling visibility. 
llvm-svn: 33197
 2007-01-14 06:27:21 +00:00
Reid Spencer
4fe8454735 Don't #include DerivedTypes.h in this header. Make adjustments to 
compensate. Move a function out of line to TargetLowering.cpp

llvm-svn: 33153
 2007-01-12 23:21:42 +00:00
Evan Cheng
a8ed507f15 - Move RTLIB::Libcall enum to a separate file. 
- Code clean up.

llvm-svn: 33148
 2007-01-12 22:49:32 +00:00
Evan Cheng
3e3e3865b8 Silence a bogus compiler warning. 
llvm-svn: 33145
 2007-01-12 22:30:07 +00:00
Reid Spencer
373d2bccea For PR1064: 
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.

llvm-svn: 33113
 2007-01-12 07:05:14 +00:00
Evan Cheng
032a597692 Store default libgcc routine names and allow them to be redefined by target. 
llvm-svn: 33105
 2007-01-12 02:11:51 +00:00
Reid Spencer
f3265181e2 Rename BoolTy as Int1Ty. Patch by Sheng Zhou. 
llvm-svn: 33076
 2007-01-11 18:21:29 +00:00
Evan Cheng
38cb858ee5 - Remove isSetCCExpensive() etc. These are no longer used. 
- Add isSelectExpensive() etc. It's used to tell codegen that select is expensive for a given target, avoid using it if possible. Currently it's only
used to expand FCOPYSIGN.

llvm-svn: 32939
 2007-01-05 23:31:08 +00:00
Evan Cheng
82d9b2077b Fix naming inconsistency: calleesave -> calleesaved. 
llvm-svn: 32821
 2007-01-02 21:30:17 +00:00
Evan Cheng
3eb79afad9 Add virtual method spillCalleeSaveRegisters() and restoreCalleeSaveRegisters() 
to MRegisterInfo. These allow the target to issue instructions to spill and
restore callee saved registers in case where individual stores / loads aren't
the correct / profitable choice.

llvm-svn: 32820
 2007-01-02 20:55:17 +00:00
Reid Spencer
a7eaf62ace For PR950: 
Change integer type names for signless integer types

llvm-svn: 32777
 2006-12-31 05:23:18 +00:00
Jim Laskey
0b63729c62 Grandchildren are covered by protect. 
llvm-svn: 32736
 2006-12-21 21:24:35 +00:00
Jim Laskey
80eeff2d0d Changes from Nick Lewycky with a simplified PPCTargetAsmInfo. 
llvm-svn: 32735
 2006-12-21 20:26:09 +00:00
Bill Wendling
7f6a73eb5c Added an automatic cast to "std::ostream*" etc. from OStream. We then can 
rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.

llvm-svn: 32636
 2006-12-17 05:15:13 +00:00
Evan Cheng
e0aa279fc8 Silly assertion. Forgot variable_ops instructions can have arbitrary number of 
operands.

llvm-svn: 32592
 2006-12-15 06:37:08 +00:00
Evan Cheng
7684d815d1 Add getTypeToExpandTo() which recursively walks TransformToType to determine 
the intrinsic type to expand to.

llvm-svn: 32558
 2006-12-13 20:52:00 +00:00
Evan Cheng
2346bdd8c3 Update comments. 
llvm-svn: 32532
 2006-12-13 06:12:35 +00:00
Evan Cheng
5c6304ca6e Update comments. 
llvm-svn: 32531
 2006-12-13 06:09:03 +00:00
Jim Laskey
bd1b9f937b Remove unneeded include. 
llvm-svn: 32489
 2006-12-12 19:36:53 +00:00
Jim Laskey
b039172d58 Rollback changes to take a different tack. 
llvm-svn: 32488
 2006-12-12 19:26:50 +00:00
Jim Laskey
8a5cea99ed Honor the command line specification for machine type. 
llvm-svn: 32483
 2006-12-12 16:07:33 +00:00
Anton Korobeynikov
e76b69846d Cleaned setjmp/longjmp lowering interfaces. Now we're producing right 
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415
 2006-12-10 23:12:42 +00:00
Evan Cheng
f1e9ec7225 Added option -soft-float to generate SW fp library calls instead of fp instructions. 
llvm-svn: 32393
 2006-12-09 02:41:30 +00:00
Evan Cheng
88a55bdd64 Move findTiedToSrcOperand to TargetInstrDescriptor. 
llvm-svn: 32366
 2006-12-08 18:45:48 +00:00