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Author SHA1 Message Date
Chris Lattner 637ca93fc4 doxygenify 
llvm-svn: 76750
 2009-07-22 16:53:56 +00:00
Duncan Sands c0647b31ee Add newline at end of file. 
llvm-svn: 76736
 2009-07-22 13:20:41 +00:00
Richard Osborne 4f7f19a7c0 Thread local globals don't require special handling by the linker and so can 
be placed in the standard data / bss sections.

llvm-svn: 76735
 2009-07-22 11:01:00 +00:00
Duncan Sands 0cf7f5d6d2 Revert commit 76707, it was breaking the llvm-gcc build 
on linux platforms.  The binutils assembler does not
recognize the "s" flag, see for example
http://sourceware.org/binutils/docs/as/Section.html 

llvm-svn: 76733
 2009-07-22 10:35:05 +00:00
Eli Friedman 315596c39c Don't give a massive inlining cost bonus to available_externally 
functions with a single use; eliminating the single use may eliminate 
the function from the current module, but usually doesn't eliminate 
it from the final program.

llvm-svn: 76730
 2009-07-22 08:12:59 +00:00
Evan Cheng 4b02b2f79c Don't forget D16 - D31 are clobbered by calls and sjlj eh. 
llvm-svn: 76729
 2009-07-22 06:46:53 +00:00
Evan Cheng 6253a19651 Add R12 to the list of registers clobbered by 16-bit Thumb calls as a pre-caution. r12 could be live once we have mixed 32-bit and 16-bit instructions. 
llvm-svn: 76728
 2009-07-22 06:37:28 +00:00
Evan Cheng eadb6681cf Fix a obvious copy-n-paste bug. 
llvm-svn: 76727
 2009-07-22 06:12:40 +00:00
Evan Cheng 2e1d66847c Get rid one of the getRegisterNumbering. Also add D16 - D31. 
llvm-svn: 76725
 2009-07-22 05:55:18 +00:00
Eli Friedman caccc0081a Add support for MMX VSETCC. 
llvm-svn: 76713
 2009-07-22 01:06:52 +00:00
Sean Callanan 5e4755943e Added the unconditional JMP with an 8-bit relocation for the 
assembler / disassembler.

llvm-svn: 76712
 2009-07-22 01:05:20 +00:00
Evan Cheng c7a243dfdd Add an entry. 
llvm-svn: 76711
 2009-07-22 00:58:27 +00:00
Chris Lattner fd164b863f inline the two MergeableConstSection implementations into their 
only caller.

llvm-svn: 76710
 2009-07-22 00:47:11 +00:00
Chris Lattner 8ebaec6b27 set the ELF "small" flag on objects that end up in .rodata.cst4 consistently, 
updating a mips testcase to expect it.

llvm-svn: 76707
 2009-07-22 00:41:56 +00:00
Chris Lattner fab2059d0e don't set the small flag yet. 
llvm-svn: 76706
 2009-07-22 00:30:39 +00:00
Chris Lattner b300a4f988 remove the SelectSectionForMachineConst hook, replacing it with 
a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705
 2009-07-22 00:28:43 +00:00
Evan Cheng 4dc848f3e8 Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it. 
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.

llvm-svn: 76703
 2009-07-22 00:25:27 +00:00
Owen Anderson 47db941fd3 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Chris Lattner 4565ef5b65 reimplement Constant::ContainsRelocations as 
Constant::getRelocationInfo(), which has a much simpler
to use API.  It still should not be part of libvmcore, but
is better than it was.  Also teach it to be smart about 
hidden visibility.

llvm-svn: 76700
 2009-07-22 00:05:44 +00:00
Evan Cheng 87aaa194f9 Fixing cp island pass. Step 1: Determine whether the constant pool offset can be 
negative on an individual bases rather than basing on whether it's in thumb
mode.

llvm-svn: 76698
 2009-07-21 23:56:01 +00:00
Evan Cheng f206d925a5 Fix comment. 
llvm-svn: 76693
 2009-07-21 23:54:22 +00:00
Chris Lattner aa17ab0669 simplify code now that it is inlined. 
llvm-svn: 76689
 2009-07-21 23:49:55 +00:00
Lang Hames aa037759b2 Exposed PHIElimination pass within CodeGen. 
llvm-svn: 76688
 2009-07-21 23:47:33 +00:00
Chris Lattner e61aff6df1 Now that RelocBehaviour() is never overloaded, it doesn't need to be 
virtual.  Just inline it into its two current call sites in preparation
for simplifying the code.

llvm-svn: 76686
 2009-07-21 23:47:11 +00:00
Chris Lattner bc2482a0a4 this doesn't break any of the 4 ia64 tests. 
llvm-svn: 76683
 2009-07-21 23:42:24 +00:00
Chris Lattner e41745f837 alpha doesn't need to redefine this: it only supports PIC codegen anyway. 
llvm-svn: 76682
 2009-07-21 23:41:35 +00:00
David Greene 3424275325 Add some support for iterative coalescers to calculate a joined live 
range's weight properly.  This is turned off right now in the sense that
you'll get an assert if you get into a situation that can only be caused
by an iterative coalescer.  All other code paths operate exactly as
before so there is no functional change with this patch.  The asserts
should be disabled if/when an iterative coalescer gets added to trunk.

llvm-svn: 76680
 2009-07-21 23:36:14 +00:00
Chris Lattner 9bd736e2f7 no really, I can spell! 
llvm-svn: 76679
 2009-07-21 23:36:01 +00:00
Chris Lattner cfb01e26bc add an API so target-independent codegen can determine if a constant 
pool entry will require relocations against it.  I implemented this
conservatively for ARM, someone who is knowledgable about it should
see if this can be improved.

llvm-svn: 76678
 2009-07-21 23:34:23 +00:00
Dan Gohman 3666c34db8 Convert instcombine from using using getAnalysis<TargetData> to 
getAnalysisIfAvailable<TargetData>.

llvm-svn: 76676
 2009-07-21 23:21:54 +00:00
Dan Gohman 9413de19b1 Permit the IntPtrTy argument to isEliminableCastPair to be null, 
to help support use when TargetData is not available.

llvm-svn: 76675
 2009-07-21 23:19:40 +00:00
Bruno Cardoso Lopes 40ca1f1c2e Change ELFCodeEmitter logic to emit the constant pool and jump tables to 
their appropriate sections before the code itself. They need to be emitted
before the function because on some targets (x86 but not x86_64) the later
may reference a JT or CP entry address

llvm-svn: 76672
 2009-07-21 23:13:26 +00:00
Dan Gohman 430f0cc544 Replace the original ad-hoc code for determining whether (v pred w) implies 
(x pred y) with more thorough code that does more complete canonicalization
before resorting to range checks. This helps it find more cases where
the canonicalized expressions match.

llvm-svn: 76671
 2009-07-21 23:03:19 +00:00
Chris Lattner 0ecf7b6f4a remove the last bits of SectionFlagsForGlobal. There is some flag here that 
depends on XS1A, but I think the ReadOnlySection is already set up for this
and there is no testcase that this breaks.  If this is really needed, we can
add the appropriate parameterization to TargetAsmInfo in the future to support
this.

llvm-svn: 76667
 2009-07-21 22:42:37 +00:00
Chris Lattner bf4bc25236 don't mask out the small flag and then reapply it later. 
llvm-svn: 76666
 2009-07-21 22:39:28 +00:00
Chris Lattner 684d5fe95d if Xcore doesn't support TLS, it doesn't have to worry about thread local LLVM IR, it should be rejected by a front-end. 
llvm-svn: 76665
 2009-07-21 22:37:38 +00:00
Chris Lattner 43893573f4 remove the Xcore implementation of SelectSectionForGlobal. While you have 
to twist your brain to see it, I believe it is the same as ELFTargetAsmInfo::SelectSectionForGlobal.

llvm-svn: 76664
 2009-07-21 22:36:53 +00:00
Chris Lattner 83e6f9370d simplify based on the fact that darwin always uses L/l. 
llvm-svn: 76662
 2009-07-21 22:32:55 +00:00
Chris Lattner 5626b88047 make some stuff private. 
llvm-svn: 76661
 2009-07-21 22:30:39 +00:00
Chris Lattner aa30d25bb4 Remove the XCore custom implementation of MergeableConstSection, relying on 
the generic ELF version instead.  This will result in its mergable constant
sections getting named ".rodata.cst4" instead of ".cp.const4", but the
linker looks at the section flags, not the name of the section AFAICT.

llvm-svn: 76659
 2009-07-21 22:25:52 +00:00
Chris Lattner 4d5c3b2e86 inline a trivial method into its only call site and fix indentation of cases 
llvm-svn: 76654
 2009-07-21 21:29:08 +00:00
Chris Lattner fd047e11a1 Remove some overridden functions in XCoreTargetAsmInfo that are 
implemented exactly the same way as its ELFTargetAsmInfo subclass 
has them.

llvm-svn: 76653
 2009-07-21 21:26:32 +00:00
Chris Lattner 1eede6c635 revert r76602, 76603, and r76615, pending design discussions. 
llvm-svn: 76646
 2009-07-21 21:12:58 +00:00
Chris Lattner c21954dff6 minor cleanups. 
llvm-svn: 76645
 2009-07-21 21:09:35 +00:00
Owen Anderson 3d34492c1f Privatize the ConstantArray table. 
llvm-svn: 76639
 2009-07-21 20:55:28 +00:00
Eli Friedman 1f74b1fdfd Missed a piece of the commit to remove the shift flavor. 
llvm-svn: 76635
 2009-07-21 20:15:24 +00:00
Owen Anderson 39ede7b8d1 Privatize the first of the value maps. 
llvm-svn: 76634
 2009-07-21 20:13:12 +00:00
Eli Friedman da9eda8ef6 Remove shift amount flavor. It isn't actually complete enough to 
be useful, and it's currently unused.  (Some issues: it isn't actually 
rich enough to capture the semantics on many architectures, and
semantics can vary depending on the type being shifted.)

llvm-svn: 76633
 2009-07-21 20:12:16 +00:00
Eli Friedman 1e08ca7313 Remove a couple of already-implemented notes. 
llvm-svn: 76631
 2009-07-21 20:05:43 +00:00
David Greene ef1f36d3c7 Prefix IR dumps with LiveInterval indices when possible. This turns 
this:

	%ESI<def> = MOV32rr %EDI<kill>
	ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
	%reg1027<def> = MOVZX64rr32 %ESI
	%reg1027<def> = ADD64ri8 %reg1027, 15, %EFLAGS<imp-def,dead>
	%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
	%RDI<def> = MOV64rr %RSP
	%RDI<def> = SUB64rr %RDI, %reg1027<kill>, %EFLAGS<imp-def,dead>
	%RSP<def> = MOV64rr %RDI

into this:

4	%reg1024<def> = MOV32rr %EDI<kill>
12	ADJCALLSTACKDOWN64 0, %RSP<imp-def>, %EFLAGS<imp-def,dead>, %RSP<imp-use>
20	%reg1025<def> = MOVZX64rr32 %reg1024
28	%reg1026<def> = MOV64rr %reg1025<kill>
36	%reg1026<def> = ADD64ri8 %reg1026, 15, %EFLAGS<imp-def,dead>
44	%reg1027<def> = MOV64rr %reg1026<kill>
52	%reg1027<def> = AND64ri8 %reg1027, -16, %EFLAGS<imp-def,dead>
60	%reg1028<def> = MOV64rr %RSP
68	%reg1029<def> = MOV64rr %reg1028<kill>
76	%reg1029<def> = SUB64rr %reg1029, %reg1027<kill>, %EFLAGS<imp-def,dead>
84	%RSP<def> = MOV64rr %reg1029

This helps greatly when debugging register allocation and coalescing
problems.

llvm-svn: 76615
 2009-07-21 18:56:32 +00:00
Evan Cheng 18e32946f8 Add fake v7 itineraries for now. 
llvm-svn: 76612
 2009-07-21 18:54:14 +00:00
Chris Lattner 100865e59d make AsmPrinter::doFinalization iterate over the global variables 
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.

llvm-svn: 76604
 2009-07-21 18:38:57 +00:00
David Greene 3b458645be Add PrefixPrinter arguments to the dump routines for MachineFunction and 
MachineBasicBlock.  We'll use these shortly.

llvm-svn: 76603
 2009-07-21 18:27:05 +00:00
Evan Cheng 38e88cb53f Do not select tSXTB / tSXTH in thumb2 mode. 
llvm-svn: 76600
 2009-07-21 18:15:26 +00:00
Owen Anderson c37bc69e91 Rename getConstantInt{True|False} to get{True|False} at Chris' behest. 
llvm-svn: 76598
 2009-07-21 18:03:38 +00:00
Chris Lattner f5f5880c5a reduce indentation by using an early exit. 
llvm-svn: 76596
 2009-07-21 17:59:36 +00:00
Ted Kremenek d0014cf36d Update CMake files. 
llvm-svn: 76595
 2009-07-21 17:43:20 +00:00
Chris Lattner 767e90ef30 whitespace cleanups, make the MipsAsmPrinter::doInitialization 
chain to the super class instead of initializing mangler directly.
This gives it .file and module level inline asm support among other
things.

llvm-svn: 76593
 2009-07-21 17:39:48 +00:00
Chris Lattner 249df80306 fix Sparc, SystemZ, and MSP430 to not override AsmPrinter::doInitialization. 
This eliminates redundancy setting up the mangler and adds support to them
for module-level inline asm and a .file directive.

llvm-svn: 76592
 2009-07-21 17:37:35 +00:00
Chris Lattner 1177cee9dc Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match the 
LLVM IR concept.

llvm-svn: 76590
 2009-07-21 17:30:51 +00:00
Chris Lattner ca8192744a fix indentation 
llvm-svn: 76587
 2009-07-21 17:25:13 +00:00
Chris Lattner b43f7cba73 remove an unneeded override. 
llvm-svn: 76586
 2009-07-21 17:23:41 +00:00
Chris Lattner ecaf7dedd2 more random whitespace cleanup, eliminate #define, avoid copying 
vectors needlessly, doxygenify comments, improve constness, etc.

llvm-svn: 76585
 2009-07-21 17:20:18 +00:00
Chris Lattner 0e6e8cb590 some simple whitespace cleanup, avoid copying vectors for no reason 
as much, etc.

llvm-svn: 76578
 2009-07-21 16:44:47 +00:00
Evan Cheng 07a6ac6b29 Another rewriter bug exposed by recent coalescer changes. ReuseInfo::GetRegForReload() should make sure the "switched" register is in the desired register class. I'm surprised this hasn't caused more failures in the past. 
llvm-svn: 76558
 2009-07-21 09:15:00 +00:00
Daniel Dunbar f477ac5655 Add missing include. 
llvm-svn: 76555
 2009-07-21 08:58:44 +00:00
Daniel Dunbar d08978cb43 Switch this API to StringRef. 
llvm-svn: 76554
 2009-07-21 08:57:31 +00:00
Daniel Dunbar 5899e340f3 Simplify / normalize some uses of Value::getName. 
llvm-svn: 76553
 2009-07-21 08:54:24 +00:00
Daniel Dunbar 0ecb504508 Remove some unused code. 
llvm-svn: 76541
 2009-07-21 07:08:59 +00:00
Bruno Cardoso Lopes 12e543228d Support adding relocations for data sections, handling the cases where 
global declared symbols are initialized with references from other global
symbols.

llvm-svn: 76540
 2009-07-21 06:51:32 +00:00
Evan Cheng 715e6c0a0f Add jumps with 8-bit relocation for assembler / disassembler. Patch by Sean Callanan. 
llvm-svn: 76536
 2009-07-21 06:00:18 +00:00
Evan Cheng a7bb55ebb6 Fix a dagga combiner bug: avoid creating illegal constant. 
Is this really a winning transformation?
fold (shl (srl x, c1), c2) -> (shl (and x, (shl -1, c1)), (sub c2, c1)) or                                                                              
                              (srl (and x, (shl -1, c1)), (sub c1, c2))

llvm-svn: 76535
 2009-07-21 05:40:15 +00:00
Owen Anderson 2ad52176f9 Move a bit more state over to the LLVMContext. 
llvm-svn: 76533
 2009-07-21 02:47:59 +00:00
Bill Wendling a8e2ad3e3c Add the following functions: 
- SYSCALL (normal fast system call instruction) [0f 05]
- SYSENTER (system call entry instruction) [0f 34]
- SYSEXIT (system call exit instruction) [0f 35]
- SYSEXIT64 (system call exit instruction to 64-bit user code) [REX.W 0f 35]
- SYSRET (system call return instruction) [0f 07]

Patch by Sean Callanan.

llvm-svn: 76528
 2009-07-21 01:07:24 +00:00
Dan Gohman 75dced058a Make the range calculations for addrecs to be more conservative, 
as they aren't currently prepared to handle complicated overflow
cases.

llvm-svn: 76524
 2009-07-21 00:42:47 +00:00
Dan Gohman 32291b1afc Whitespace cleanups. 
llvm-svn: 76523
 2009-07-21 00:38:55 +00:00
Dan Gohman d571c37b54 Minor code simplification. 
llvm-svn: 76521
 2009-07-21 00:37:45 +00:00
Evan Cheng 0d8b0cf3b8 Fix ARM isle code that optimize multiply by constants which are power-of-2 +/- 1. 
llvm-svn: 76520
 2009-07-21 00:31:12 +00:00
Evan Cheng 9a47392f2e Cross RC coalescing is now on by default. 
llvm-svn: 76519
 2009-07-21 00:22:59 +00:00
Dale Johannesen 68cb8d0310 revert 76503 while I figure out what's going on 
llvm-svn: 76517
 2009-07-21 00:12:29 +00:00
Dan Gohman 3439262586 Add a comment to clarify why there isn't any code in this spot. 
llvm-svn: 76505
 2009-07-20 23:54:43 +00:00
Dan Gohman 00c1aaec5a Remove the code that tried to evaluate whether (A pred B) is known 
by determining if (B pred (B-A)) is known, as it doesn't handle
overflow correctly.

llvm-svn: 76504
 2009-07-20 23:53:35 +00:00
Dale Johannesen a2d2adfa4e Make sure a global matching asm 'i' constraint gets its 
flags set properly.  (hasMemory is clearly irrelevant
when matching 'i', I don't understand what this was
supposed to be doing.)
gcc.apple/asm-block-25.c (test passed before by
accident, but generated code was wrong)

llvm-svn: 76503
 2009-07-20 23:39:13 +00:00
Dale Johannesen ade297d496 Move stripping of bitcasts in inline asm arguments 
to a place where it affects everything.  Occurs
only on calls AFAIK.

llvm-svn: 76502
 2009-07-20 23:27:39 +00:00
Dan Gohman d231d78f3f Minor code simplification. 
llvm-svn: 76496
 2009-07-20 22:41:51 +00:00
Dan Gohman 1a7ab9473f The upper argument of ConstantRange is exclusive, not inclusive. 
llvm-svn: 76492
 2009-07-20 22:34:18 +00:00
Chris Lattner 2cd8f753c0 clean up some formatting, indent by 2 instead of 4. 
llvm-svn: 76490
 2009-07-20 22:23:48 +00:00
David Goodwin 711b9e809c CMP and TST define CPSR, not use it. 
llvm-svn: 76489
 2009-07-20 22:13:31 +00:00
David Greene 40c68ad3bb Re-apply 75490, 75806 and 76177 with fixes and tests. Efficiency comes 
next.

llvm-svn: 76486
 2009-07-20 22:02:59 +00:00
Bill Wendling d04f088345 Simplify the code in DarwinTargetAsmInfo::emitUsedDirectiveFor so that humans can understand it. 
llvm-svn: 76480
 2009-07-20 21:38:26 +00:00
Bill Wendling dde1a8eef4 Pass in the unfortunately named "LessPrivatePrefix" for the 
"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...

llvm-svn: 76479
 2009-07-20 21:30:28 +00:00
Dan Gohman 0ebd69614c Assembly and Bitcode support for unsigned/signed overflow flags and 
exact sdiv flags.

llvm-svn: 76475
 2009-07-20 21:19:07 +00:00
Evan Cheng 57106d6dc0 Use TII->findCommutedOpIndices to find the commute operands (rather than guessing). 
llvm-svn: 76472
 2009-07-20 21:16:08 +00:00
Bill Wendling 2dd0bf8db0 Change the casting of linkage types into a map. This makes this much more robust 
as it no longer depends upon two different enums being kept in sync with each
other.

llvm-svn: 76465
 2009-07-20 20:34:46 +00:00
Kevin Enderby ee5513582d Removed the DumpSymbolsandMacros and LoadSymbolsandMacros MCStreamer API as 
the parsing of the .dump and .load should be done in the assembly parser and
not have any need for an MCStreamer API.  Changed the code for now so these
just produce an error saying these specific directives are not yet implemented
since they are likely no longer used and may never need to be implemented.

llvm-svn: 76462
 2009-07-20 20:25:37 +00:00
Daniel Dunbar 2b11c7de4a Add MCAsmLexer interface. 
- This provides the AsmLexer interface to the target specific assembly parsers.

llvm-svn: 76460
 2009-07-20 20:01:54 +00:00
Evan Cheng 027d9f93ea Fix some sub-reg coalescing bugs where the coalescer wasn't updating the resulting interval's register class. 
llvm-svn: 76458
 2009-07-20 19:47:55 +00:00
Bill Wendling 1bcfbff7af Rename Mangler linkage enums to something less gross. 
llvm-svn: 76456
 2009-07-20 19:41:27 +00:00
Devang Patel 8ff0f8d79b Refactor metadata parsing routines into separate functions. 
llvm-svn: 76455
 2009-07-20 19:00:08 +00:00
Daniel Dunbar 3c2a893ac7 Add MCAsmParser interface. 
- This provides the AsmParser interface to the target specific assembly
   parsers.

llvm-svn: 76453
 2009-07-20 18:55:04 +00:00