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29419 Commits

Author SHA1 Message Date
Dan Gohman
499f79ba60 Request LCSSA after LoopSimplify. This fixes a problem in which the 
PassManager was scheduling LCSSA before LoopSimplify, which does not
preserve LCSSA.

llvm-svn: 74661
 2009-07-01 23:21:38 +00:00
Devang Patel
1fececd8c1 Refactor. No functionality change. 
llvm-svn: 74659
 2009-07-01 23:19:01 +00:00
Bob Wilson
810a970c6f Add a new addressing mode for NEON load/store instructions. 
llvm-svn: 74658
 2009-07-01 23:16:05 +00:00
Owen Anderson
4fa7e54329 Make the use of const with respect to LLVMContext sane. Hopefully this is the last time, for the 
moment, that I will need to make far-reaching changes.

llvm-svn: 74655
 2009-07-01 23:13:44 +00:00
Dan Gohman
7efbe6a243 Use find instead of operator[] to test whether an element is in a std::map. 
This fixes a bug that caused -debug-pass=Details to abort.

llvm-svn: 74654
 2009-07-01 23:12:33 +00:00
Bill Wendling
cbd3f64f54 --- Reverse-merging (from foreign repository) r74648 into '.': 
U    include/llvm/LLVMContext.h
U    lib/VMCore/LLVMContext.cpp
U    lib/AsmParser/LLParser.cpp
U    lib/AsmParser/LLParser.h

Temporarily reverting r74648. It was causing massive failures in release mode.

llvm-svn: 74653
 2009-07-01 22:33:26 +00:00
Devang Patel
0349a19e60 Keep DIDescriptor methods together. 
No functionality change.

llvm-svn: 74652
 2009-07-01 22:10:23 +00:00
Bob Wilson
e3f8a640ac Fix a comment typo. 
llvm-svn: 74650
 2009-07-01 21:59:43 +00:00
Owen Anderson
93253cd222 Fix typo. 
llvm-svn: 74649
 2009-07-01 21:58:14 +00:00
Owen Anderson
b70b5ab513 Convert LLParser to use LLVMContext for creating constants. 
llvm-svn: 74648
 2009-07-01 21:57:44 +00:00
Andreas Bolka
3ba7d77eff Use AA to check objects before LDA. 
llvm-svn: 74647
 2009-07-01 21:45:23 +00:00
Dan Gohman
e3b1f9e14b Fix an instcombine abort on a scalar-to-vector bitcast. This fixes PR4487. 
llvm-svn: 74646
 2009-07-01 21:38:46 +00:00
Daniel Dunbar
8247f1ffe2 Tweak FindExecutable so that relative executable paths work as well. 
llvm-svn: 74645
 2009-07-01 21:36:28 +00:00
Bob Wilson
11cddb5deb Fix up a comment: besides the >80col lines, the operation for this 
addressing mode is encoded in the second operand, not the third.

llvm-svn: 74641
 2009-07-01 21:22:45 +00:00
Owen Anderson
cf112e59c3 Hold the LLVMContext by reference rather than by pointer. 
llvm-svn: 74640
 2009-07-01 21:22:36 +00:00
Devang Patel
d038bc5fbc Fix metadata unittests 
llvm-svn: 74638
 2009-07-01 20:59:15 +00:00
Devang Patel
e5b9558412 Do not print stranded metadata. 
llvm-svn: 74632
 2009-07-01 19:39:39 +00:00
Devang Patel
905d32435c Support stand alone metadata syntax. 
!0 = constant metadata !{i32 21, i32 22}
@llvm.blah = constant metadata !{i32 1000, i16 200, metadata !0}

llvm-svn: 74630
 2009-07-01 19:21:12 +00:00
Devang Patel
9149c185a4 llvm.dbg.declare is always used for local variable's debug info. 
llvm-svn: 74625
 2009-07-01 18:51:07 +00:00
Bill Wendling
fdd5badace Update comments to make it clear that the function alignment is the Log2 of the 
bytes and not bytes.

llvm-svn: 74624
 2009-07-01 18:50:55 +00:00
Jeffrey Yasskin
29ea777c1e Add a portable strerror*() wrapper, llvm::sys::StrError(). This includes the 
Windows variant, strerror_s, but I couldn't test that.

I'll update configure and config.h.in in a subsequent patch.

llvm-svn: 74621
 2009-07-01 18:11:20 +00:00
Owen Anderson
fbe8d883a0 I give up on trying to use reader/writer locks for recursive type refinement. Use a recursive mutex instead, which will (in theory) generate more contention, but is really 
a much more natural fit for what's going on during recursive type refinement.

llvm-svn: 74618
 2009-07-01 17:22:27 +00:00
Owen Anderson
81b8dabb53 Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot 
of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.

Patches for Clang and LLVM-GCC to follow.

llvm-svn: 74614
 2009-07-01 16:58:40 +00:00
Chris Lattner
b51c7950bf Fix codegen for references to available_externally symbols. This fixes 
PR4482.

llvm-svn: 74613
 2009-07-01 16:53:44 +00:00
Owen Anderson
250c7e1a54 Try again at making this work on OpenBSD. 
llvm-svn: 74612
 2009-07-01 16:19:23 +00:00
Daniel Dunbar
2b25b9ba77 Fix FindExecutable to work if given an absolute executable path name. 
- Patch by Viktor Kutuzov, with tweaks by me.

llvm-svn: 74608
 2009-07-01 15:26:13 +00:00
Evan Cheng
e6989735a6 CommuteChangesDestination() should check if to-be-commuted instruction defines any register. Also teaches the default commuteInstruction() to commute instruction without definitions (e.g. X86::test / ARM::tsp). 
llvm-svn: 74602
 2009-07-01 08:29:08 +00:00
Evan Cheng
7d78cb531e Remove special handling of implicit_def. Fix a couple more bugs in liveintervalanalysis and coalescer handling of implicit_def. 
Note, isUndef marker must be placed even on implicit_def def operand or else the scavenger will not ignore it. This is necessary because -O0 path does not use liveintervalanalysis, it treats implicit_def just like any other def.

llvm-svn: 74601
 2009-07-01 08:19:36 +00:00
Owen Anderson
a006b0212a Fix the build on OpenBSD. 
llvm-svn: 74597
 2009-07-01 06:53:29 +00:00
Daniel Dunbar
efcb5ad32e Dump MCInsts in the MC .s printer, for now. 
llvm-svn: 74593
 2009-07-01 06:35:03 +00:00
Chris Lattner
4bdaace06e improve the APIs for creating struct and function types with no arguments/elements 
to not have to create a temporary vector (in the API at least).  Patch by Jay Foad!

llvm-svn: 74584
 2009-07-01 04:13:31 +00:00
Chris Lattner
2bbdc61f92 Fix some fast-isel problems selecting global variable addressing in 
pic mode.

llvm-svn: 74582
 2009-07-01 03:27:19 +00:00
Evan Cheng
37503e9671 Handle IMPLICIT_DEF with isUndef operand marker, part 2. This patch moves the code to annotate machineoperands to LiveIntervalAnalysis. It also add markers for implicit_def that define physical registers. The rest, is just a lot of details. 
llvm-svn: 74580
 2009-07-01 01:59:31 +00:00
Daniel Dunbar
bc3d149e98 Remove unused AsmPrinter OptLevel argument, and propogate. 
- This more or less amounts to a revert of r65379. I'm curious to know what
   happened that caused this variable to become unused.

llvm-svn: 74579
 2009-07-01 01:48:54 +00:00
David Goodwin
19aa5c7d51 Add PIC load and store patterns for Thumb-2. 
llvm-svn: 74577
 2009-07-01 00:01:13 +00:00
Owen Anderson
7e570cd684 Add a global context, for easing backwards compatibility. 
llvm-svn: 74574
 2009-06-30 23:39:59 +00:00
David Goodwin
aa1f876954 Thumb-2 load and store double description. But nothing yet creates them. 
llvm-svn: 74566
 2009-06-30 22:50:01 +00:00
Bill Wendling
c0fb316bd3 Add an "alignment" field to the MachineFunction object. It makes more sense to 
have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.

This allows for future work that would allow for precise no-op placement and the
like.

llvm-svn: 74564
 2009-06-30 22:38:32 +00:00
David Goodwin
5805e9aef5 Add thumb-2 store word, halfword, and byte. 
llvm-svn: 74555
 2009-06-30 22:11:34 +00:00
Dan Gohman
b3c5210779 Minor code cleanups. 
llvm-svn: 74551
 2009-06-30 20:13:32 +00:00
Dan Gohman
148d3bb9b4 Reapply 74494, this time removing the conflicting definition of operator<< 
in APIntTest.cpp.

llvm-svn: 74550
 2009-06-30 20:10:56 +00:00
David Goodwin
aad223dd8a Improve Thumb-2 jump table support. 
llvm-svn: 74549
 2009-06-30 19:50:22 +00:00
David Greene
c702ce1ab3 Add 256-bit memory operand support. 
llvm-svn: 74548
 2009-06-30 19:24:59 +00:00
David Goodwin
5545d82866 Add conditional and unconditional thumb-2 branch. Add thumb-2 jump table. 
llvm-svn: 74543
 2009-06-30 18:04:13 +00:00
Owen Anderson
0b1cd834ef Add wrappers for type construction to LLVMContext. 
llvm-svn: 74542
 2009-06-30 17:50:28 +00:00
Owen Anderson
e9e4a2bdb9 Fix up header comments to make Chris happy. 
llvm-svn: 74537
 2009-06-30 17:06:46 +00:00
Rafael Espindola
340632e814 Fix PR4485. 
Avoid unnecessary duplication of operand 0 of X86::FpSET_ST0_80. This duplication would
cause one register to remain on the stack at the function return.

llvm-svn: 74534
 2009-06-30 16:40:03 +00:00
Oscar Fuentes
88c3197f7c Fixed assert that checks return value of TlsSetValue. 
See http://msdn.microsoft.com/en-us/library/ms686818(VS.85).aspx

Patch by Olaf Krzikalla!

llvm-svn: 74526
 2009-06-30 14:12:28 +00:00
Rafael Espindola
33b0aa0274 Fix PR4484. 
This was caused by me confounding FP0 and ST(0).

llvm-svn: 74523
 2009-06-30 12:18:16 +00:00
Evan Cheng
28b9e77f19 Temporarily restore the scavenger implicit_def checking code. MachineOperand isUndef mark is not being put on implicit_def of physical registers (created for parameter passing, etc.). 
llvm-svn: 74519
 2009-06-30 09:19:42 +00:00
Evan Cheng
c6c942b70f Add a bit IsUndef to MachineOperand. This indicates the def / use register operand is defined by an implicit_def. That means it can def / use any register and passes (e.g. register scavenger) can feel free to ignore them. 
The register allocator, when it allocates a register to a virtual register defined by an implicit_def, can allocate any physical register without worrying about overlapping live ranges. It should mark all of operands of the said virtual register so later passes will do the right thing.

This is not the best solution. But it should be a lot less fragile to having the scavenger try to track what is defined by implicit_def.

llvm-svn: 74518
 2009-06-30 08:49:04 +00:00
Bill Wendling
1121a4ce5e Temporarily revert r74494. It was causing failures in the unit tests. 
llvm-svn: 74515
 2009-06-30 07:05:27 +00:00
Owen Anderson
4b4ba9f06c Fix the build on Cygwin. Patch by Aaron Gray. 
llvm-svn: 74510
 2009-06-30 05:33:46 +00:00
Chris Lattner
7d0212b87d remove a bogus note. 
llvm-svn: 74509
 2009-06-30 05:22:31 +00:00
Chris Lattner
903e3854e0 add a note 
llvm-svn: 74508
 2009-06-30 04:20:46 +00:00
Bill Wendling
37e13c0817 #include <iostream> is forbidden. Remove it in favor of raw_ostream. 
llvm-svn: 74507
 2009-06-30 04:07:12 +00:00
Evan Cheng
2a527c3419 A few more load instructions. 
llvm-svn: 74500
 2009-06-30 02:15:48 +00:00
Andreas Bolka
71ef361d1d Array accesses are independent if the underlying arrays differ. 
llvm-svn: 74499
 2009-06-30 02:12:10 +00:00
Dan Gohman
f207911974 Define an operator<< for APInt to be used with std::ostream. 
This will allow it to be used in unittests that use gtest's
EXPECT_EQ.

llvm-svn: 74494
 2009-06-30 01:28:08 +00:00
Dan Gohman
cb466d07fb Minor formatting, whitespace, and 80-column fixes. 
llvm-svn: 74492
 2009-06-30 01:25:30 +00:00
Dan Gohman
49c397bf4b Minor code simplification. 
llvm-svn: 74491
 2009-06-30 01:24:43 +00:00
Daniel Dunbar
5bec168037 Normalize SourceMgr messages. 
- Don't print "Parsing" in front of every message.

 - Take additional "type" argument which is prepended to the message (with ": ")
   if given.

 - Update clients to print errors (warnings) as:
<filename>:<line number>: error(warning): ...

llvm-svn: 74489
 2009-06-30 00:49:23 +00:00
Owen Anderson
131b5cfb0c Add LLVMContext, which will eventually be used as a container for privatizing a lot of (currently) global state, including the 
constant and type uniquing tables.  For now, just make it a wrapper around the existing APIs.

llvm-svn: 74488
 2009-06-30 00:48:55 +00:00
Mikhail Glushenkov
8f8b5ff837 Add a way to access argv[0] in hooks. 
llvm-svn: 74483
 2009-06-30 00:16:00 +00:00
Mikhail Glushenkov
6e8fe4b75c Move the driver entry point out of Main.inc. 
llvm-svn: 74482
 2009-06-30 00:15:24 +00:00
Daniel Dunbar
72c0434597 llvm-mc: Parse .{,b,p2}align{,w,l} directives. 
llvm-svn: 74478
 2009-06-29 23:46:59 +00:00
Devang Patel
e35cd91347 Struct types are described using field types only. 
llvm-svn: 74477
 2009-06-29 23:46:50 +00:00
Daniel Dunbar
d1200f5ce1 Fix install of libCompilerDriver dynamic library to not copy on every build. 
llvm-svn: 74473
 2009-06-29 22:59:36 +00:00
David Greene
0bf8cb7487 Add a 256-bit register class and YMM registers. 
llvm-svn: 74469
 2009-06-29 22:50:51 +00:00
David Goodwin
4f53387d26 Add Thumb-2 support for TEQ amd TST. 
llvm-svn: 74468
 2009-06-29 22:49:42 +00:00
Dan Gohman
ab49c8abe9 Use getSCEV instead of getUnknown to create a SCEV for a 
Constant. This lets ConstantInts be handled as SCEVConstant instead
of SCEVUnknown, as getUnknown no longer has special-case code for
ConstantInt and friends. This usually doesn't affect the final
output, since the constants end up getting folded later, but it
does make intermediate expressions more obvious in many cases.

llvm-svn: 74459
 2009-06-29 21:31:18 +00:00
Daniel Dunbar
a33d10fc4d Don't build LLVMC when configured with --disable-pic (it needs requires shared 
module support to build).

llvm-svn: 74456
 2009-06-29 21:12:26 +00:00
Torok Edwin
1d606ac3ee Set wasRun to false here on Dan's suggestion. 
llvm-svn: 74455
 2009-06-29 21:05:10 +00:00
Devang Patel
bff451b95b s/MainCU/ModuleCU/g 
llvm-svn: 74452
 2009-06-29 20:45:18 +00:00
Devang Patel
4ba8cbff55 Multiple DW_TAG_compile_unit is not used, afaict, on any target. 
Update dwarf writer to only emit one DW_TAG_compile_unit per .o file. 

llvm-svn: 74449
 2009-06-29 20:38:13 +00:00
Dan Gohman
d496b35af0 Don't cache PHI exit values from exhaustive evaluations, because 
an individual exhaustive evaluation reflects only the exit value
implied by an individual exit, which may differ from the actual
exit value of the loop if there are other exits. This fixes PR4477.

llvm-svn: 74447
 2009-06-29 20:34:13 +00:00
Rafael Espindola
a0fdda93be FIX PR 4459. 
Not sure I understand how the temp register gets used,
but this fixes a bug and introduces no regressions.

llvm-svn: 74446
 2009-06-29 20:29:59 +00:00
Torok Edwin
28c47d108c Initialize CurSection in constructor. 
Not doing so causes some unittests to fail, because CurSection is uninitialized.

llvm-svn: 74442
 2009-06-29 19:59:10 +00:00
Daniel Dunbar
134907cafc Rename MCValue::getCst to getConstant and add MCValue::isConstant. 
llvm-svn: 74440
 2009-06-29 19:51:00 +00:00
Andreas Bolka
e9be816964 Relax LDA memory instruction checks. 
llvm-svn: 74439
 2009-06-29 18:51:11 +00:00
Torok Edwin
9c5c74d4ca Call doInitialization(), releaseMemory(), and doFinalization() for on-the-fly passes as well. 
Also don't call finalizers for LoopPass if initialization was not called.
Add a unittest that tests that these methods are called, in the proper
order, and the correct number of times.

llvm-svn: 74438
 2009-06-29 18:49:09 +00:00
Dan Gohman
011d5bd123 Simplify this code, and avoid using APInt(). This fixes 
(otherwise harmless) uninitialized value warnings that
Duncan found with gcc-4.4.

llvm-svn: 74437
 2009-06-29 18:25:52 +00:00
Owen Anderson
d0e12300d9 Add a target-specific DAG combine on X86 to fold the common pattern of 
fence-atomic-fence down to just the atomic op.  This is possible thanks to
X86's relatively strong memory model, which guarantees that locked instructions
(which are used to implement atomics) are implicit fences.

llvm-svn: 74435
 2009-06-29 18:04:45 +00:00
David Greene
43f1203512 Add processor descriptions for Istanbul and Shanghai. 
llvm-svn: 74429
 2009-06-29 16:54:06 +00:00
David Greene
6be6604b5d Fix a subtarget feature bug. 
llvm-svn: 74428
 2009-06-29 16:51:01 +00:00
David Greene
21d2c76116 Add more vector ValueTypes for AVX and other extended vector instruction 
sets.

llvm-svn: 74427
 2009-06-29 16:47:10 +00:00
David Goodwin
9e1280adf3 Rename ARMcmpNZ to ARMcmpZ and use it to represent comparisons that set only the Z flag (i.e. eq and ne). Make ARMcmpZ commutative. 
llvm-svn: 74423
 2009-06-29 15:33:01 +00:00
Duncan Sands
efb6d3b78e Add triple for OpenBSD. 
llvm-svn: 74422
 2009-06-29 13:36:13 +00:00
Duncan Sands
660e9c2106 Include the new file ThumbRegisterInfo.cpp to CMakeLists.txt 
to make sure ThumbRegisterInfo.cpp are compiled and linked in.
Patch by Xerxes.

llvm-svn: 74421
 2009-06-29 13:11:32 +00:00
Evan Cheng
093adf3ff9 Implement Thumb2 ldr. 
After much back and forth, I decided to deviate from ARM design and split LDR into 4 instructions (r + imm12, r + imm8, r + r << imm12, constantpool). The advantage of this is 1) it follows the latest ARM technical manual, and 2) makes it easier to reduce the width of the instruction later. The down side is this creates more inconsistency between the two sub-targets. We should split ARM LDR instruction in a similar fashion later. I've added a README entry for this.

llvm-svn: 74420
 2009-06-29 07:51:04 +00:00
Mikhail Glushenkov
c513ce52e6 Make dynamic LLVMC plugins work on Windows (finally!). 
Implemented by making lib/CompilerDriver a shared library that holds all the
global static data (CommandLine options, plugin registry) that we unfortunately
have to live with.

llvm-svn: 74417
 2009-06-29 03:09:15 +00:00
Andreas Bolka
3fd2d1c6a5 Missed one. 
llvm-svn: 74416
 2009-06-29 00:53:49 +00:00
Andreas Bolka
32493b35ba Fix case in LDA util function names. 
llvm-svn: 74415
 2009-06-29 00:50:26 +00:00
Andreas Bolka
bed5622fb7 Print pairwise dependence results, add testcases. 
llvm-svn: 74402
 2009-06-28 00:35:22 +00:00
Andreas Bolka
1bb3ea724e Minimal LDA interface, maximally conservative tester. 
llvm-svn: 74401
 2009-06-28 00:21:21 +00:00
Andreas Bolka
f31c966606 LDA analysis output scaffolding. 
llvm-svn: 74400
 2009-06-28 00:16:08 +00:00
Dan Gohman
28702fab4e Don't try to split a loop when the controlling icmp instruction 
doesn't have an IV-based operand. This fixes PR4471.

llvm-svn: 74399
 2009-06-27 22:58:27 +00:00
Dan Gohman
fcd5eedead Remove the block from the LoopInfo, rather than just the Loop. 
LoopInfo will handle removing it from the Loop, as well as updating
its own tables.

llvm-svn: 74398
 2009-06-27 22:32:36 +00:00
Dan Gohman
8d2a45fadb Teach LoopSimplify how to merge multiple loop exits into a single exit, 
when one of them can be converted to a trivial icmp and conditional
branch.

This addresses what is essentially a phase ordering problem.
SimplifyCFG knows how to do this transformation, but it doesn't do so
if the primary block has any instructions in it other than an icmp and
a branch. In the given testcase, the block contains other instructions,
however they are loop-invariant and can be hoisted. SimplifyCFG doesn't
have LoopInfo though, so it can't hoist them. And, it's important that
the blocks be merged before LoopRotation, as it doesn't support
multiple-exit loops.

llvm-svn: 74396
 2009-06-27 21:30:38 +00:00
Dan Gohman
a753bd44ff More minor code simplifications. 
llvm-svn: 74395
 2009-06-27 21:23:40 +00:00
Dan Gohman
e25e17d91e Eliminate a layer of indirection in LoopInfo and MachineLoopInfo. 
llvm-svn: 74394
 2009-06-27 21:22:48 +00:00
Dan Gohman
592d4b6ee0 Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead 
of a team of individual allocations and a team of std::maps.

llvm-svn: 74393
 2009-06-27 21:21:31 +00:00
Dan Gohman
36f9ee7670 Change SCEVExpander to use an IRBuilder to emit instructions. 
llvm-svn: 74391
 2009-06-27 21:18:18 +00:00
Anton Korobeynikov
7231e149ef Simplify a bit 
llvm-svn: 74385
 2009-06-27 12:59:03 +00:00
Anton Korobeynikov
1db77899c1 ARM refactoring. Step 2: split RegisterInfo 
llvm-svn: 74384
 2009-06-27 12:16:40 +00:00
Douglas Gregor
6ee152cc94 Add ThumbInstrInfo.cpp to the CMake makefiles 
llvm-svn: 74382
 2009-06-27 07:44:59 +00:00
Chris Lattner
4d88bfc0d6 remove a bunch of fixmes (old checking code) and commonize all the 
target-specific operand printing functionality.  Yay.

llvm-svn: 74379
 2009-06-27 05:46:24 +00:00
Chris Lattner
9571347ce0 pull @GOT, @GOTOFF, @GOTPCREL handling into isel from the asmprinter. 
llvm-svn: 74378
 2009-06-27 05:39:56 +00:00
Chris Lattner
2dcba29672 simplify some code and eliminate the symbolicAddressesAreRIPRel() predicate. 
llvm-svn: 74377
 2009-06-27 05:24:12 +00:00
Dan Gohman
4acfd5098d When a value is used multiple times within a single PHI, instructions 
inserted to replace that value must dominate all of of the basic
blocks associated with the uses of the value in the PHI, not just
one of them.

llvm-svn: 74376
 2009-06-27 05:16:57 +00:00
Chris Lattner
bab7dd08d2 fix clang/test/CodeGenObjC/try.m, a basereg doesn't mean no global anymore. 
llvm-svn: 74375
 2009-06-27 04:50:14 +00:00
Chris Lattner
82058e92a0 fix a bunch of failures in the X86-64 JIT by tolerating RIP as 
a base register.  We just ignore it for now.

llvm-svn: 74374
 2009-06-27 04:46:33 +00:00
Chris Lattner
e711b85035 factor some logic out into a helper function, allow remat of loads from constant 
globals.  This implements remat-constant.ll even without aggressive-remat.

llvm-svn: 74373
 2009-06-27 04:38:55 +00:00
Chris Lattner
19eb0dad26 Reimplement rip-relative addressing in the X86-64 backend. The new 
implementation primarily differs from the former in that the asmprinter
doesn't make a zillion decisions about whether or not something will be
RIP relative or not.  Instead, those decisions are made by isel lowering
and propagated through to the asm printer.  To achieve this, we:

1. Represent RIP relative addresses by setting the base of the X86 addr
   mode to X86::RIP.
2. When ISel Lowering decides that it is safe to use RIP, it lowers to
   X86ISD::WrapperRIP.  When it is unsafe to use RIP, it lowers to
   X86ISD::Wrapper as before.
3. This removes isRIPRel from X86ISelAddressMode, representing it with
   a basereg of RIP instead.
4. The addressing mode matching logic in isel is greatly simplified.
5. The asmprinter is greatly simplified, notably the "NotRIPRel" predicate
   passed through various printoperand routines is gone now.
6. The various symbol printing routines in asmprinter now no longer infer
   when to emit (%rip), they just print the symbol.

I think this is a big improvement over the previous situation.  It does have
two small caveats though: 1. I implemented a horrible "no-rip" modifier for
the inline asm "P" constraint modifier.  This is a short term hack, there is
a much better, but more involved, solution.  2. I had to xfail an 
-aggressive-remat testcase because it isn't handling the use of RIP in the
constant-pool reading instruction.  This specific test is easy to fix without
-aggressive-remat, which I intend to do next.

llvm-svn: 74372
 2009-06-27 04:16:01 +00:00
Chris Lattner
0ce83b0e95 When doing remat, don't consider uses of non-allocatable physregs. Patch 
by Evan.

llvm-svn: 74370
 2009-06-27 04:06:41 +00:00
Evan Cheng
817712377a Renaming for consistency. 
llvm-svn: 74368
 2009-06-27 02:26:13 +00:00
Chris Lattner
2f690cb2dd Fix PR4466 by making fastisel set operand flags correctly. 
llvm-svn: 74366
 2009-06-27 01:31:51 +00:00
Chris Lattner
ce7f3c052e fix a typo that GCC should have caught that causes crashes with -view-*-dags 
llvm-svn: 74364
 2009-06-27 00:57:02 +00:00
David Goodwin
e1979dfbf5 Remove outdated comment. 
llvm-svn: 74357
 2009-06-26 23:39:02 +00:00
David Goodwin
90fc344e41 When possible, use "mvn ra, rb" instead of "eor ra, rb, -1" because mvn has a narrow version and eor(i) does not. 
llvm-svn: 74355
 2009-06-26 23:13:13 +00:00
Dan Gohman
4f74e815f1 Incorporate the insertion point into the key of SCEVExpander's CSE map. 
This helps it avoid reusing an instruction that doesn't dominate all
of the users, in cases where the original instruction was inserted
before all of the users were known.  This may result in redundant
expansions of sub-expressions that depend on loop-unpredictable values
in some cases, however this isn't very common, and it primarily impacts
IndVarSimplify, so GVN can be expected to clean these up.

This eliminates the need for IndVarSimplify's FixUsesBeforeDefs,
which fixes several bugs.

llvm-svn: 74352
 2009-06-26 22:53:46 +00:00
Devang Patel
4f5d296df0 Remove unused routines. 
llvm-svn: 74351
 2009-06-26 22:53:22 +00:00
David Greene
d33e8e7d83 Add feature flags for AVX and FMA and fix some SSE4A feature flag 
initialization problems.

llvm-svn: 74350
 2009-06-26 22:46:54 +00:00
Dan Gohman
9e78d55440 Fix ScalarEvolution::getAddRecExpr's code which canonicalized the 
nesting order of nested AddRec expressions to skip the transformation
if it would introduce an AddRec with operands not loop-invariant
with respect to its loop.

llvm-svn: 74343
 2009-06-26 22:36:20 +00:00
Dan Gohman
e8b1947a18 Fix SCEVAddRecExpr::isLoopInvariant to test if all of its operands 
are loop invariant, not just the start operand.

llvm-svn: 74338
 2009-06-26 22:17:21 +00:00
Evan Cheng
016ed65455 Add x86 support for 'n' inline asm modifier. This will be handled target independently as part of MC work. 
llvm-svn: 74336
 2009-06-26 22:00:19 +00:00
Chris Lattner
3a48623aef simplify printing of MO_ExternalSymbol in a non-pcrel context. 
llvm-svn: 74334
 2009-06-26 21:47:27 +00:00
Owen Anderson
7fdfd4be66 Privatize some data. 
llvm-svn: 74332
 2009-06-26 21:45:04 +00:00
Owen Anderson
2bcd131128 Constify this value. 
llvm-svn: 74330
 2009-06-26 21:39:56 +00:00
Anton Korobeynikov
aab56476b2 Split thumb-related stuff into separate classes. 
Step 1: ARMInstructionInfo => {ARM,Thumb}InstructionInfo

llvm-svn: 74329
 2009-06-26 21:28:53 +00:00
Chris Lattner
a8ee785cef add %rip to the GR64 register class. Lets avoid allocating it to anything though! :) 
llvm-svn: 74328
 2009-06-26 21:25:00 +00:00
Chris Lattner
1f3d17f45d Move all the TLS processing logic into isel, don't do it in asmprinter at all. 
llvm-svn: 74327
 2009-06-26 21:20:29 +00:00
Chris Lattner
ae824fc834 make sure to propagate operand flags in SelectTLSADDRAddr properly. 
llvm-svn: 74326
 2009-06-26 21:18:37 +00:00
Chris Lattner
ca9aefcc93 fix a really subtle bug in the cross section of aliases and TLS: 
the SelectionDAG::getGlobalAddress function properly looks through
aliases to determine thread-localness, but then passes the GV* down
to GlobalAddressSDNode::GlobalAddressSDNode which does not.  Instead
of passing down isTarget, just pass down the predetermined node
opcode.  This fixes some assertions with out of tree changes I'm 
working on.

llvm-svn: 74325
 2009-06-26 21:14:05 +00:00
David Goodwin
921faa64cd Thumb-2 has CLZ. 
llvm-svn: 74322
 2009-06-26 20:47:43 +00:00
David Goodwin
9da977f216 Use "adcs/sbcs" only when the carry-out is live, otherwise use "adc/sbc". 
llvm-svn: 74321
 2009-06-26 20:45:56 +00:00
Owen Anderson
0cf6b34d5d Get rid of these cache variables, which are a holdover from the days when 
we had multiple type planes and these lookups were expensive.

llvm-svn: 74319
 2009-06-26 20:33:47 +00:00
Owen Anderson
633060240c Make this const. 
llvm-svn: 74317
 2009-06-26 20:21:18 +00:00
Chris Lattner
a56bff5e36 minor cleanup/framework changes. 
llvm-svn: 74316
 2009-06-26 20:00:05 +00:00
Owen Anderson
333c8af1b1 Privatize some variables. 
llvm-svn: 74315
 2009-06-26 19:48:37 +00:00
Chris Lattner
0a0494b4f9 move magic for PIC constantpool references from asmprinter to isel. 
llvm-svn: 74313
 2009-06-26 19:22:52 +00:00
Chris Lattner
0fee902c2d implement DOTGraphTraits<SelectionDAG*>::getNodeLabel in terms of 
SDNode::print_details to eliminate a ton of near-duplicate code.

llvm-svn: 74311
 2009-06-26 19:06:10 +00:00
Chris Lattner
45946d9021 use jump table operand flags in asm printer instead of "magic predicates" 
llvm-svn: 74310
 2009-06-26 18:55:01 +00:00
Owen Anderson
1069071612 Use atomic operations for accessing this global counter. 
llvm-svn: 74294
 2009-06-26 18:09:03 +00:00
David Goodwin
46eb5a7a2d ADC used to implement adde should use "adcs" opcode instead of "adc". 
llvm-svn: 74293
 2009-06-26 18:07:25 +00:00
Owen Anderson
6448beadc8 Get rid of unnecessary global variables. 
llvm-svn: 74291
 2009-06-26 16:46:15 +00:00
David Goodwin
877790aa5f Currently there is a pattern for the thumb-2 MOV 16-bit immediate instruction. That instruction cannot write the flags so it should use T2I instead of T2sI. 
Also, added a pattern for the thumb-2 MOV of shifted immediate since that can encode immediates not encodable by the 16-bit immediate.

llvm-svn: 74288
 2009-06-26 16:10:07 +00:00
Douglas Gregor
6d9b0e8c19 Fix linking of llvm-ld and lli with CMake, from Xerxes Rånby 
llvm-svn: 74285
 2009-06-26 15:37:00 +00:00
Owen Anderson
77f965d8b2 Fix compilation without pthreads. 
Patch by Xerxes Ranby.

llvm-svn: 74283
 2009-06-26 08:48:03 +00:00
Evan Cheng
b93625f89e Simplify predicate CarryDefIsUsed. 
llvm-svn: 74277
 2009-06-26 06:10:18 +00:00
Chris Lattner
497d0ec530 fix a pasto. 
llvm-svn: 74275
 2009-06-26 05:56:49 +00:00
Chris Lattner
05eabf4f95 dot graph viewing is apparently not using SDNode::print_details, this is bad, 
but in the meantime lets print targetflags on node labels.

llvm-svn: 74274
 2009-06-26 05:55:43 +00:00
Chris Lattner
3aef0c897e propagate target operand flags from dag nodes into MachineOperands. 
llvm-svn: 74273
 2009-06-26 05:52:14 +00:00
Chris Lattner
93af5249a1 propagate target operand flags through addressing mode selection. 
llvm-svn: 74272
 2009-06-26 05:51:45 +00:00
Chris Lattner
181d139bc3 fit in 80 cols 
llvm-svn: 74270
 2009-06-26 05:39:02 +00:00
Nick Lewycky
ce25b7e7e6 Escape the name of the module since it comes from the file name and may include 
invalid characters like backslashes on Windows. Patch by James Abbatiello!

llvm-svn: 74265
 2009-06-26 04:33:37 +00:00
Devang Patel
a7a5664fbb Let's ignore MDStrings also! 
llvm-svn: 74255
 2009-06-26 02:26:12 +00:00
Daniel Dunbar
f7c439154f Fix may-be-used-uninitialized warning. 
llvm-svn: 74253
 2009-06-26 02:03:52 +00:00
Devang Patel
84a8914a4a Remove debug info anchors - llvm.dbg.compile_units, llvm.dbg.subprograms 
and llvm.dbg.global_variables.

llvm-svn: 74251
 2009-06-26 01:49:18 +00:00
Daniel Dunbar
0d9b275e55 Fix unused variable warnings. 
llvm-svn: 74250
 2009-06-26 01:34:35 +00:00
Owen Anderson
ba05ead9db Fix error in the Win32 implementation pointed out by Howard Su. 
llvm-svn: 74248
 2009-06-26 00:51:20 +00:00
Chris Lattner
05eb63598b start adding logic in isel to determine asm printer semantics, step N of M. 
llvm-svn: 74246
 2009-06-26 00:43:52 +00:00
Dan Gohman
71b1c43d91 Change this code to a form about which VC++ reportedly isn't unhappy. 
llvm-svn: 74243
 2009-06-26 00:35:12 +00:00
Dan Gohman
ba8760719f Fix LCSSA to avoid emitting a PHI node for the unwind destination of 
an invoke instruction, since the value isn't really live across that
edge.

llvm-svn: 74242
 2009-06-26 00:31:13 +00:00
Evan Cheng
2eb1525e2a Add a note about commuting conditional move. 
llvm-svn: 74241
 2009-06-26 00:28:48 +00:00
Dan Gohman
3983d5070b Minor code simplification. 
llvm-svn: 74240
 2009-06-26 00:26:03 +00:00
Evan Cheng
f23c8a5c8a These are done / no longer applicable. 
llvm-svn: 74239
 2009-06-26 00:25:27 +00:00
Evan Cheng
4f0e461e97 Mark a bunch of instructions commutable. 
llvm-svn: 74237
 2009-06-26 00:19:44 +00:00
Evan Cheng
e45355b804 tst is also commutable. 
llvm-svn: 74236
 2009-06-26 00:19:07 +00:00
Owen Anderson
4aee97b0e3 Committed the wrong version in my last commit. 
llvm-svn: 74235
 2009-06-26 00:17:05 +00:00
Owen Anderson
22fb1f445e Privatize a static variable. 
llvm-svn: 74234
 2009-06-26 00:15:27 +00:00
Owen Anderson
40fd8971d3 Guards for the compiler driver plugin list. 
llvm-svn: 74230
 2009-06-26 00:06:28 +00:00
Evan Cheng
4ac765118d Select ADC, SBC, and RSC instead of the ADCS, SBCS, and RSCS when the carry bit def is not used. 
llvm-svn: 74228
 2009-06-25 23:34:10 +00:00
Owen Anderson
5417ad7e3b Support thread-local pretty stack traces. 
llvm-svn: 74227
 2009-06-25 23:31:33 +00:00
Owen Anderson
3a892a63b7 Add support for const thread locals. 
llvm-svn: 74226
 2009-06-25 23:31:18 +00:00
Owen Anderson
8d5f9675c7 Fix typo in assertion. 
llvm-svn: 74225
 2009-06-25 23:28:28 +00:00
David Goodwin
74414108e9 Use MVN for ~t2_so_imm immediates. 
llvm-svn: 74223
 2009-06-25 23:11:21 +00:00
Owen Anderson
59ffd85020 Add a configure test for pthread_getspecific, and use it when building ThreadLocal. 
llvm-svn: 74222
 2009-06-25 23:10:26 +00:00
David Goodwin
a0ed5f6847 Add Def/Use of CPSR for Thumb-1 instructions. 
llvm-svn: 74219
 2009-06-25 22:49:55 +00:00
Devang Patel
32bbebe82f Simplify. 
llvm-svn: 74215
 2009-06-25 22:36:02 +00:00
Evan Cheng
331e7cc684 Unbreak mingw build. Patch by Viktor Kutuzov. 
llvm-svn: 74212
 2009-06-25 22:04:44 +00:00
Owen Anderson
aef431f9cb Update cmake build files. 
llvm-svn: 74210
 2009-06-25 21:58:34 +00:00
Owen Anderson
e716e57779 Add a class for supporting platform independent thread-local storage. 
Windows people, please double-check/patch this.

llvm-svn: 74209
 2009-06-25 21:58:01 +00:00
Chris Lattner
6a77e841e8 add targetflags to jump tables and constant pool entries. 
llvm-svn: 74204
 2009-06-25 21:35:31 +00:00
Chris Lattner
f94959f1a3 allow setting target operand flags on TargetGlobalAddress nodes. 
llvm-svn: 74203
 2009-06-25 21:21:14 +00:00
Daniel Dunbar
3d3f776dc9 MC: Truncate values when printing, to keep 'as' happy. 
llvm-svn: 74201
 2009-06-25 21:03:18 +00:00
Evan Cheng
0cced3daa8 ISD::ADDE / ISD::SUBE updates the carry bit so they should isle to ADCS and SBCS / RSCS. 
llvm-svn: 74200
 2009-06-25 20:59:23 +00:00
Chris Lattner
55fdaaf6e7 start bringing targetoperand flags into isel, first up, ExternalSymbol. 
llvm-svn: 74199
 2009-06-25 18:45:50 +00:00
Mikhail Glushenkov
e665ff7b38 Make -save-temps behave like in GCC 4.5. 
The -save-temps option now behaves like described in GCC 4.5 release notes
(you can specify output directory for temporary files with -save-temps=obj
-o $DIRNAME). I do not have GCC 4.5 installed, so if there are any
inconsistencies between llvmc and GCC in the implementation of this
feature, please let me know.

llvm-svn: 74190
 2009-06-25 18:20:10 +00:00
Owen Anderson
7e0ff6ab63 Privatize this map. 
llvm-svn: 74189
 2009-06-25 18:13:04 +00:00
Owen Anderson
d1598408ce Guard dynamic library loading. 
I did my best at implementing this for Win32, but I don't have a way to test it.
Can someone with access to a Win32 machine test/fix this?

llvm-svn: 74188
 2009-06-25 18:12:44 +00:00
Sanjiv Gupta
a68f1e8cbf Added floating point conditional operations support via libcalls. 
llvm-svn: 74187
 2009-06-25 18:12:06 +00:00
Chris Lattner
2aaaf51beb simplify shouldPrintPLT 
llvm-svn: 74186
 2009-06-25 17:58:52 +00:00
David Goodwin
c72bad36d7 Test commit 
llvm-svn: 74185
 2009-06-25 17:52:32 +00:00
Chris Lattner
8c562c2f76 Use target-specific machine operand flags to eliminate a gross hack 
from the asmprinter.

llvm-svn: 74184
 2009-06-25 17:38:33 +00:00
Chris Lattner
f70f8cc399 just eliminate the code entirely! 
llvm-svn: 74183
 2009-06-25 17:28:07 +00:00
Owen Anderson
76d92148a7 Provide guards for this shared structure. I'm not sure this actually needs 
to be shared, but how/where to privatize it is not immediately clear to me.

If any SelectionDAG experts see a better solution, please share!

llvm-svn: 74180
 2009-06-25 17:09:00 +00:00
Owen Anderson
7bc2987c5c Privatize some more debug-related static data. 
llvm-svn: 74179
 2009-06-25 16:55:32 +00:00
Owen Anderson
e52105541d Use a more correct atomic increment style. This isn't really necessary in 
this case, but it should help avoid issues in the future.

llvm-svn: 74178
 2009-06-25 16:32:45 +00:00
Bob Wilson
38779c951a Revert 74164. We'll want to use this method later. 
llvm-svn: 74176
 2009-06-25 16:03:07 +00:00