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35763 Commits

Author SHA1 Message Date
Chris Lattner
ee2b6b1cc5 emit jump table an alias ".set" directives through MCStreamer as 
assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596
 2010-01-26 21:53:08 +00:00
Chris Lattner
c2717878e8 fix CastInst::castIsValid to reject aggregate types, fixing PR6153: 
llvm-as: t.ll:1:25: error: invalid cast opcode for cast from '[4 x i8]' to '[1 x i32]'
@x = constant [1 x i32] bitcast ([4 x i8] c"abcd" to [1 x i32])
                        ^

llvm-svn: 94595
 2010-01-26 21:51:43 +00:00
Devang Patel
4563d073d3 Use AssertingVH, just to be paranoid. 
llvm-svn: 94593
 2010-01-26 21:39:14 +00:00
Jakob Stoklund Olesen
1218f1331f Revert test polarity to match comment and desired outcome. Remove undeserved bonus. 
A GEP with all constant indices is already considered free by
analyzeBasicBlock(), so don't give it an extra bonus in
CountCodeReductionForAlloca().

This patch should remove a small positive bias toward inlining functions with
variable-index GEPs, and remove a smaller negative bias from functions with
all-constant index GEPs.

llvm-svn: 94591
 2010-01-26 21:31:35 +00:00
Jakob Stoklund Olesen
f4b32e1185 Remove dead code. 
Functions containing indirectbr are marked NeverInline by analyzeBasicBlock(),
so there is no point in giving indirectbr special treatment in
CountCodeReductionForConstant. It is never called.

No functional change intended.

llvm-svn: 94590
 2010-01-26 21:31:30 +00:00
Jakob Stoklund Olesen
509e8f1ec8 Skip calculation of ArgumentWeights if it will never be used. 
Save a few bytes by allocating the correct size vector.

No functional change intended.

llvm-svn: 94589
 2010-01-26 21:31:24 +00:00
Devang Patel
84b21559f8 Emit DW_AT_containing_type attribute for a class if containing type is known. 
llvm-svn: 94587
 2010-01-26 21:16:06 +00:00
Devang Patel
9e6549db1d Add extra element to composite type. This new element will be used to record c++ class that holds current class's vtable. 
llvm-svn: 94586
 2010-01-26 21:14:59 +00:00
Chris Lattner
325a36c358 Eliminate SetDirective, and replace it with HasSetDirective. 
Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.

llvm-svn: 94585
 2010-01-26 20:40:54 +00:00
Evan Cheng
54f23f1179 Delete dead code. 
llvm-svn: 94583
 2010-01-26 20:36:21 +00:00
Rafael Espindola
f46baf3304 Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF. 
Original patch by Sandeep Patel and updated by me.

llvm-svn: 94582
 2010-01-26 20:21:43 +00:00
Chris Lattner
044439c9bc eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform 
that has it.

llvm-svn: 94581
 2010-01-26 20:20:43 +00:00
Chris Lattner
9f98fa6707 don't set to the default value. 
llvm-svn: 94580
 2010-01-26 20:17:34 +00:00
Dan Gohman
4b3987001a Make the unsigned-range code more consistent with the signed-range code, 
and clean up some loose ends.

llvm-svn: 94572
 2010-01-26 19:19:05 +00:00
Evan Cheng
b308493fc0 Code refactoring, no functionality change. 
llvm-svn: 94570
 2010-01-26 19:04:47 +00:00
Victor Hernandez
3a9845ecf7 Switch AllocaDbgDeclares to SmallVector and don't leak DIFactory 
llvm-svn: 94567
 2010-01-26 18:57:53 +00:00
Dan Gohman
fd52a58a99 Fix a typo in a comment that Duncan noticed. 
llvm-svn: 94562
 2010-01-26 18:32:54 +00:00
Dan Gohman
124de89a93 Remove SIL, DIL, and BPL from the GR8_NOREX allocation order also. 
llvm-svn: 94560
 2010-01-26 18:30:24 +00:00
Dan Gohman
9fe369e610 SIL, DIL, BPL, and SPL require a REX prefix. 
llvm-svn: 94558
 2010-01-26 18:14:22 +00:00
Dan Gohman
783616ec9a Rename ItCount to BECount, since it holds a backedge-taken count rather 
than an iteration count.

llvm-svn: 94549
 2010-01-26 16:46:18 +00:00
Dan Gohman
332216f73c Fix ICmpInst::makeConstantRange to use ConstantRange's API properly 
in the case of empty and full ranges.

llvm-svn: 94548
 2010-01-26 16:04:20 +00:00
Dan Gohman
47ec8cddb7 Fix a typo that several people pointed out. Also, address the case of 
wrapping that Duncan pointed out.

llvm-svn: 94547
 2010-01-26 15:56:18 +00:00
Mikhail Glushenkov
f74d495859 Better error message. 
llvm-svn: 94544
 2010-01-26 14:55:16 +00:00
Chris Lattner
967a37fb26 eliminate the TargetLowering::UsesGlobalOffsetTable bool, which is 
subsumed by TargetLowering::getJumpTableEncoding().  Change uses of
it to be more specific.

llvm-svn: 94529
 2010-01-26 06:53:37 +00:00
Chris Lattner
b711ded671 Now that printPICJumpTableSetLabel is not overloaded, 
inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.

llvm-svn: 94528
 2010-01-26 06:42:44 +00:00
Chris Lattner
d87c50833a Move getJTISymbol from MachineJumpTableInfo to MachineFunction, 
which is more convenient, and change getPICJumpTableRelocBaseExpr
to take a MachineFunction to match.

Next, move the X86 code that create a PICBase symbol to
X86TargetLowering::getPICBaseSymbol from 
X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific 
library.  This eliminates a 'gross hack', and allows us to
implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now
calls it.

This in turn allows us to eliminate the 
X86AsmPrinter::printPICJumpTableSetLabel method, which was the
only overload of printPICJumpTableSetLabel.

llvm-svn: 94526
 2010-01-26 06:28:43 +00:00
Chris Lattner
a9b1ea03e9 add a new MachineJumpTableInfo::getJTISymbol method, 
use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr

llvm-svn: 94523
 2010-01-26 05:58:28 +00:00
Chris Lattner
3b2bf7ab66 stub out a new target hook, need some refactoring before I can 
implement it.

llvm-svn: 94521
 2010-01-26 05:30:30 +00:00
Chris Lattner
b020478ce5 simplify asmprinter: only emit .set directives when entries have 
EK_LabelDifference32 kind and the target has .set support.  Simplify
X86AsmPrinter::printPICJumpTableSetLabel to make use of recent helpers.

llvm-svn: 94518
 2010-01-26 05:15:20 +00:00
Chris Lattner
945bbf606f rename printPICJumpTableEntry -> EmitJumpTableEntry, 
make it private and non-virtual.  It handles the non-pic
case too, so just use it, simplifying EmitJumpTableInfo.

llvm-svn: 94517
 2010-01-26 05:10:10 +00:00
Chris Lattner
7d88592ba1 implement X86 @GOTOFF jump table entries with the new EK_Custom32 
jump table entry kind, instead of overloading 
AsmPrinter::printPICJumpTableEntry.

This has a pretty horrible and inefficient FIXME around how @GOTOFF
is currently smashed into the mcsymbol name, but otherwise this is
much cleaner.

llvm-svn: 94516
 2010-01-26 05:02:42 +00:00
Chris Lattner
b4a5d00176 add a new MachineBasicBlock::getSymbol method, replacing 
the AsmPrinter::GetMBBSymbol.

llvm-svn: 94515
 2010-01-26 04:55:51 +00:00
Lang Hames
91856859d6 New PBQP solver. 
* Fixed a reduction bug which occasionally led to infinite-cost (invalid)
  register allocation solutions despite the existence finite-cost solutions.
* Significantly reduced memory usage (>50% reduction).
* Simplified a lot of the solver code.

llvm-svn: 94514
 2010-01-26 04:49:58 +00:00
Dan Gohman
5e06a05a16 Fix the the ceiling-division used in computing the MaxBECount so that it doesn't 
have trouble with an intermediate add overflowing. Also, be more conservative
about the case where the induction variable in an SLT loop exit can step past
the RHS of the SLT and overflow in a single step.

Make getSignedRange more aggressive, to recover for some common cases which
the above fixes pessimized.

This addresses rdar://7561161.

llvm-svn: 94512
 2010-01-26 04:40:18 +00:00
Chris Lattner
416de57b74 don't bother setting the AsmPrinter::MF ivar, now that 
AsmPrinter::SetupMachineFunction sets it.  Note that systemz
and msp430 didn't.  Yay for reduced inconsistency! :)

llvm-svn: 94510
 2010-01-26 04:38:11 +00:00
Chris Lattner
d25ec1b3bd make MachineFunction keep track of its ID and make 
MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.

llvm-svn: 94509
 2010-01-26 04:35:26 +00:00
Dan Gohman
0c02f09fba Add a comment about a missed opportunity. 
llvm-svn: 94507
 2010-01-26 04:13:15 +00:00
Dan Gohman
2d9a3eb391 Print empty and full sets specially. 
llvm-svn: 94506
 2010-01-26 04:12:55 +00:00
Chris Lattner
5ee5b62838 Add support for target-specific 32-bit custom-lowered 
jump table entries.

llvm-svn: 94505
 2010-01-26 04:05:28 +00:00
Daniel Dunbar
ea2288006f Unbreak MSVC/CMake build. 
llvm-svn: 94502
 2010-01-26 03:56:22 +00:00
Chris Lattner
643adc5090 make jit jump table emission be based on the EntryKind instead of magic variables. 
JITInfo::getPICJumpTableEntry can probably be removed now, but I don't plan to do 
this.

llvm-svn: 94501
 2010-01-26 03:47:15 +00:00
Chris Lattner
d0c077cef7 switch jump table entry emission to be based on EntryKind 
instead of magic variables.

llvm-svn: 94500
 2010-01-26 03:43:22 +00:00
Victor Hernandez
f12e8a120f In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store. 
llvm-svn: 94493
 2010-01-26 02:42:15 +00:00
Victor Hernandez
ab3ebb1a4a Add MDNode::getIfExists(), an efficient way to determine if a value is used by metadata (since metadata does not appear in a value's use list) 
llvm-svn: 94492
 2010-01-26 02:36:35 +00:00
Victor Hernandez
648015f3a6 Assert when debug intrinsic insert functions are passed empty arguments 
llvm-svn: 94491
 2010-01-26 02:07:38 +00:00
Evan Cheng
548d00d77c Implement cond ? -1 : 0 with sbb. 
llvm-svn: 94490
 2010-01-26 02:00:44 +00:00
Dale Johannesen
c9b61e3433 Accept immediate as value of a dbg_value. 
llvm-svn: 94489
 2010-01-26 01:54:26 +00:00
Sean Callanan
7cbd38ee14 Added the implementation of the Intel-specific 
TargetAsmLexer.

llvm-svn: 94482
 2010-01-26 01:00:10 +00:00
Dale Johannesen
d75f9dc3ff Generate DEBUG_VALUE comments on x86. The (limited) 
dbg.declare's we currently generate go through both
register allocators without perturbing the results.

llvm-svn: 94480
 2010-01-26 00:09:58 +00:00
Sean Callanan
285d34cedd Added the TargetAsmLexer implementation for AT&T syntax. 
llvm-svn: 94479
 2010-01-26 00:08:25 +00:00
Dale Johannesen
e26033402e use findDebugLoc in more places. 
llvm-svn: 94477
 2010-01-26 00:03:12 +00:00
Jim Grosbach
122b05d47f Minor jump table cleanup. 
llvm-svn: 94475
 2010-01-25 23:50:13 +00:00
Chris Lattner
9e24c71bd4 in 32-bit pic mode for targets with a GOT, x86 emits jump table 
entries with @GOTOFF whih is EK_GPRel32BlockAddress.

llvm-svn: 94474
 2010-01-25 23:38:14 +00:00
Chris Lattner
aa82645068 fix quoting problem jim noticed! 
llvm-svn: 94472
 2010-01-25 23:28:03 +00:00
Chris Lattner
efdc572e44 Rearrange handling of jump tables. Highlights: 
1. MachineJumpTableInfo is now created lazily for a function the first time
   it actually makes a jump table instead of for every function.
2. The encoding of jump table entries is now described by the
   MachineJumpTableInfo::JTEntryKind enum.  This enum is determined by the
   TLI::getJumpTableEncoding() hook, instead of by lots of code scattered
   throughout the compiler that "knows" that jump table entries are always
   32-bits in pic mode (for example).
3. The size and alignment of jump table entries is now calculated based on
   their kind, instead of at machinefunction creation time.

Future work includes using the EntryKind in more places in the compiler,
eliminating other logic that "knows" the layout of jump tables in various
situations.

llvm-svn: 94470
 2010-01-25 23:26:13 +00:00
Chris Lattner
e3f214b438 prep work to support a future where getJumpTableInfo will return 
a null pointer for functions with no jump tables.  No functionality
change.

llvm-svn: 94469
 2010-01-25 23:22:00 +00:00
Chris Lattner
00ba9a5343 add a method to get the alignment of an integer type even 
when we don't have one laying around.  Useful if you don't
have an llvmcontext handy.

llvm-svn: 94468
 2010-01-25 23:18:11 +00:00
Johnny Chen
9ff21f3121 Make it SP, LR, PC for GPR Register Class instead of LR, SP, PC. 
llvm-svn: 94465
 2010-01-25 22:54:29 +00:00
Chris Lattner
1e05dd3446 eliminate redundant argument to EmitJumpTableInfo 
llvm-svn: 94464
 2010-01-25 22:41:33 +00:00
Johnny Chen
40f1246038 Implemented ARMInstPrinter::printThumbS4ImmOperand(). 
llvm-svn: 94457
 2010-01-25 22:13:10 +00:00
Sean Callanan
4dbe558a10 Implemented the dialect decision logic for the X86 
TargetAsmLexer.  Dialect-specific lexing code will
be placed in the functions LexTokenATT() and
LexTokenIntel().

llvm-svn: 94456
 2010-01-25 21:59:20 +00:00
Johnny Chen
4facdb7d00 Fixed the order of GPR RegisterClass regs to be: ..., R10, R11, R12, ... 
llvm-svn: 94455
 2010-01-25 21:56:35 +00:00
Dan Gohman
18bbc20ac8 Fix the bitcode reader to deserialize nuw/nsw/etc. bits properly in the case 
of a forward-reference, which doesn't use an "abbrev" encoding.

llvm-svn: 94454
 2010-01-25 21:55:39 +00:00
Chris Lattner
3559d9a38a mcstreamerize gprel32 emission. 
llvm-svn: 94452
 2010-01-25 21:28:50 +00:00
Bob Wilson
e3d00b2e56 Remove check for an impossible condition: the condition of the while loop has 
already checked that TmpBB->getSinglePredecessor() is non-null.

llvm-svn: 94451
 2010-01-25 21:28:05 +00:00
Chris Lattner
151c0e8669 mcize the non-gprel cases of AsmPrinter::printPICJumpTableEntry 
llvm-svn: 94450
 2010-01-25 21:22:22 +00:00
Chris Lattner
27d1a6fed5 handle the _set_ symbol with an MCSymbol. 
llvm-svn: 94449
 2010-01-25 21:17:10 +00:00
Chris Lattner
ac1144c110 rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to 
make it clear what it is, instead of how it is used.

llvm-svn: 94448
 2010-01-25 21:10:10 +00:00
Chris Lattner
ee2163758e pull the non-pic jump table case out of printPICJumpTableEntry 
and MCize the non-pic case.  Now printPICJumpTableEntry really
is just about printing PIC entries.

llvm-svn: 94446
 2010-01-25 21:01:58 +00:00
Chris Lattner
fafb52a75a remove JumpTableDirective, it is always null. 
llvm-svn: 94445
 2010-01-25 20:52:54 +00:00
Chris Lattner
1e1d7ad2f8 mcize jump table symbol manipulation. 
llvm-svn: 94441
 2010-01-25 19:51:38 +00:00
Chris Lattner
1cd2ba1c3a sink an arm specific method out of asmprinter into the ARMAsmPrinter and 
rename it to avoid shadowing.

llvm-svn: 94440
 2010-01-25 19:39:52 +00:00
Chris Lattner
fc056d77e4 remove dead code: the x86 target never sets usesGlobalOffsetTable, 
even on x86-32/elf which uses a GOT.

llvm-svn: 94439
 2010-01-25 19:23:04 +00:00
Chris Lattner
5f919913e8 wirte up .file and .file to the mc asmparser. 
llvm-svn: 94438
 2010-01-25 19:02:58 +00:00
Chris Lattner
20d89c382c mcstreamerize .file and .file. This also fixes an issue where the 
normal form of .file would fail if the filename had a weird character
in it.

llvm-svn: 94437
 2010-01-25 18:58:59 +00:00
Chris Lattner
4746185ef2 emit ELF .type directives through MCStreamer instead of doing it textually. 
llvm-svn: 94436
 2010-01-25 18:33:40 +00:00
Chris Lattner
7a5c8c15bd add symbol attribute support for the ELF .type directive. 
llvm-svn: 94435
 2010-01-25 18:30:45 +00:00
Bob Wilson
1882fba746 Change Value::getUnderlyingObject to have the MaxLookup value specified as a 
parameter with a default value, instead of just hardcoding it in the
implementation.  The limit of MaxLookup = 6 was introduced in r69151 to fix
a performance problem with O(n^2) behavior in instcombine, but the scalarrepl
pass is relying on getUnderlyingObject to go all the way back to an AllocaInst.
Making the limit part of the method signature makes it clear that by default
the result is limited and should help avoid similar problems in the future.
This fixes pr6126.

llvm-svn: 94433
 2010-01-25 18:26:54 +00:00
Victor Hernandez
253c09eb8f Revert r94260 until findDbgDeclare() is made more efficient 
llvm-svn: 94432
 2010-01-25 17:52:13 +00:00
Chris Lattner
30a253067e add a comment 
llvm-svn: 94417
 2010-01-25 07:53:05 +00:00
Chris Lattner
9834b7f300 emit the .size directive for global variables on ELF through 
mcstreamer.

llvm-svn: 94416
 2010-01-25 07:52:13 +00:00
Chris Lattner
474395e815 all supported target now have aligned common support. 
llvm-svn: 94413
 2010-01-25 07:29:13 +00:00
Chris Lattner
355085f393 Remove support for i386 tiger tools for aligned common symbols. 
Previously we would just silently miscompile code that used aligned
common's, now at least you'll get a build error.  tiger-ppc already
triggered the build error because it didn't have a version of this
logic.

llvm-svn: 94412
 2010-01-25 07:26:17 +00:00
Chris Lattner
3db729e661 don't set value to its default. 
llvm-svn: 94411
 2010-01-25 07:23:14 +00:00
Chris Lattner
0b42d3ef45 coff targets support alignment on .comm 
llvm-svn: 94410
 2010-01-25 07:20:44 +00:00
Jim Grosbach
4f713bf0fb ARM does accept the .comm directive alignment. 
llvm-svn: 94408
 2010-01-25 04:59:07 +00:00
Rafael Espindola
82a8b3efd4 Fix PR6134. 
We are not emitting alignments on Darwin for "bar". Not sure what is the
correct way to do it.

llvm-svn: 94400
 2010-01-25 02:27:39 +00:00
Chris Lattner
e04db98cdd linux/ppc does use alignment in bytes, not pow-2. This fixes PR6129. 
It looks like linux/arm and linux/mips have the same setting, which 
are probably wrong.  Someone who cares about ARM and MIPS should 
investigate with the testcase in PR6129.

llvm-svn: 94381
 2010-01-24 20:54:45 +00:00
Chris Lattner
bf8495a08e don't reset the default. 
llvm-svn: 94380
 2010-01-24 20:53:12 +00:00
Chris Lattner
5a57121631 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 
llvm-svn: 94378
 2010-01-24 20:43:08 +00:00
Chris Lattner
397d34f06b mark some libraries that currently require RTTI. 
llvm-svn: 94377
 2010-01-24 20:22:08 +00:00
Chris Lattner
82318209c4 reassociate should do this. 
llvm-svn: 94374
 2010-01-24 20:17:09 +00:00
Chris Lattner
e328ab9a00 add a note. 
llvm-svn: 94373
 2010-01-24 20:01:41 +00:00
Chris Lattner
0dde21dba4 fix some issues where we weren't emitting enough newlines. 
llvm-svn: 94370
 2010-01-24 19:01:06 +00:00
Chris Lattner
c0ac5c1d3b when emitting DIEs, emit the comment on the same line as the directive. 
This fixes FrontendObjC/2009-11-30-Objc-ID.m

llvm-svn: 94369
 2010-01-24 18:54:17 +00:00
Chris Lattner
d9f55b7c3d move PR5945 here. 
llvm-svn: 94350
 2010-01-24 02:27:03 +00:00
Chris Lattner
5d31547fec fix a parsing problem on instructions like: 
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.

llvm-svn: 94345
 2010-01-24 01:07:33 +00:00
Mon P Wang
d4d1cbb72b It seems better to scalarize vectors of size 1 instead of widening them. 
Add support to widen SETCC.

llvm-svn: 94342
 2010-01-24 00:24:43 +00:00
Chris Lattner
91fafbd4e8 change the canonical form of "cond ? -1 : 0" to be 
"sext cond" instead of a select.  This simplifies some instcombine
code, matches the policy for zext (cond ? 1 : 0 -> zext), and allows
us to generate better code for a testcase on ppc.

llvm-svn: 94339
 2010-01-24 00:09:49 +00:00
Mon P Wang
871ea08e40 Improved widening loads by adding support for wider loads if 
the alignment allows.  Fixed a bug where we didn't use a
vector load/store for PR5626.

llvm-svn: 94338
 2010-01-24 00:05:03 +00:00
Chris Lattner
b9e618553f fix a potential overflow issue Eli pointed out. 
llvm-svn: 94336
 2010-01-23 23:31:46 +00:00
Nick Lewycky
f9a681fb61 Speculatively revert r94322 to see if it fixes darwin selfhost buildbot. 
llvm-svn: 94331
 2010-01-23 20:32:12 +00:00
Chris Lattner
b444bc0234 third bug from PR6119: the xor dupe extension allows 
for arbitrary terminators in predecessors, don't assume
it is a conditional or uncond branch.  The testcase shows
an example where they can happen with switches.

llvm-svn: 94323
 2010-01-23 19:21:31 +00:00
Nick Lewycky
8bbb754c7c Teach DAE that even though it can't modify the function signature of an 
externally visible function, it can still find all callers of it and replace
the parameters to a dead argument with undef.

llvm-svn: 94322
 2010-01-23 19:19:34 +00:00
Chris Lattner
7130788ea2 add an early out to ProcessBranchOnXOR to speed it up, 
handle the case when we can infer an input to the xor
from all inputs that agree, instead of going into an
infinite loop.  Another part of PR6199

llvm-svn: 94321
 2010-01-23 19:16:25 +00:00
Chris Lattner
e4391a1adb fix a crash in jump threading, PR6119 
llvm-svn: 94319
 2010-01-23 18:56:07 +00:00
Chris Lattner
8909d5aca5 implement a simple instcombine xform that has been in the 
readme forever.

llvm-svn: 94318
 2010-01-23 18:49:30 +00:00
Chris Lattner
744a23610a add a note 
llvm-svn: 94317
 2010-01-23 18:42:37 +00:00
Chris Lattner
fdc6162f82 add some notes, making posix-memalign be nocapture would be an easy improvement. 
llvm-svn: 94312
 2010-01-23 17:59:23 +00:00
Bill Wendling
7449bb010b Remove the '-disable-scheduling' flag and replace it with the 'source' option of 
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.

llvm-svn: 94308
 2010-01-23 10:26:57 +00:00
Benjamin Kramer
252f9b6a26 Respect operator precedence (and silence a gcc 4.3 warning). 
llvm-svn: 94304
 2010-01-23 09:54:23 +00:00
Chris Lattner
617e6fb889 mcize lcomm, simplify .comm, extend both to support 64-bit sizes. 
llvm-svn: 94299
 2010-01-23 07:47:02 +00:00
Chris Lattner
7e1fa376cc resolve a fixme: the "nonexecutable stack directive" is actually 
a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

llvm-svn: 94298
 2010-01-23 07:21:06 +00:00
Chris Lattner
7fe6265555 remove a dead call. 
llvm-svn: 94297
 2010-01-23 07:17:54 +00:00
Chris Lattner
4db62b81c3 use helpers. 
llvm-svn: 94296
 2010-01-23 07:00:21 +00:00
Chris Lattner
56c318f344 mcize visibility directives. 
llvm-svn: 94295
 2010-01-23 06:53:23 +00:00
Chris Lattner
60edc92e39 move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.

llvm-svn: 94294
 2010-01-23 06:39:22 +00:00
Chris Lattner
1b7c00a4f2 Change constantexpr global variable initializers to convert the constants 
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.

llvm-svn: 94293
 2010-01-23 06:17:14 +00:00
Eric Christopher
e6d6bfcc32 Don't lower splat vector load to relative to the esp if the 
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!

llvm-svn: 94291
 2010-01-23 06:02:43 +00:00
Chris Lattner
62d08f5577 mcstreamerize .no_dead_strip and .reference for static ctors/dtors. 
llvm-svn: 94290
 2010-01-23 05:51:36 +00:00
Eric Christopher
bc8f2b1a56 Reapply 94059 while fixing the calling convention setup 
for strcpy.

llvm-svn: 94287
 2010-01-23 05:29:06 +00:00
Chris Lattner
d9cedc9675 remove unneeded directive set. 
llvm-svn: 94286
 2010-01-23 05:28:25 +00:00
Chris Lattner
e41f630fa0 use some helpers instead of duplicating logic. 
llvm-svn: 94285
 2010-01-23 05:26:25 +00:00
Chris Lattner
2ee0376c42 mcize jump table and constant pool entry labels, .local on elf, 
and some .weak directives.

llvm-svn: 94284
 2010-01-23 05:19:23 +00:00
Chris Lattner
20a336f1df emit .ascii and .asciz through MCStreamer. 
llvm-svn: 94282
 2010-01-23 04:54:10 +00:00
Chris Lattner
7223430983 simplify code a bit. 
llvm-svn: 94281
 2010-01-23 04:42:42 +00:00
Mon P Wang
b7fce13b78 InstCombine should not fold sext/zext of a vector and a bitcast to a scalar to a sext/zext 
llvm-svn: 94280
 2010-01-23 04:35:57 +00:00
Ted Kremenek
e45feb24f8 Update CMake build. 
llvm-svn: 94278
 2010-01-23 04:01:37 +00:00
Chris Lattner
e6801b7c24 remove one form of EmitString, just use EmitBytes instead. We must 
be careful to add a \0 at the end though, because EmitString didn't
do this.

llvm-svn: 94277
 2010-01-23 03:11:46 +00:00
Sean Callanan
d50d17e067 Added the skeleton for the implementation of the X86 
target-specific AsmLexer, and added the appropriate
registration calls.

llvm-svn: 94275
 2010-01-23 02:43:15 +00:00
Sean Callanan
1942b96584 Modified the register matcher function in AsmMatcher to 
be static.  Also made it possible for clients to get it
and no other functions from ...GenAsmMatcher.inc by
defining REGISTERS_ONLY before including GenAsmMatcher.inc.
This sets the stage for target-specific lexers that can
identify registers and return AsmToken::Register as
appropriate.

llvm-svn: 94266
 2010-01-23 00:40:33 +00:00
Devang Patel
280d341d36 Avoid using "Type" as the variable name. 
llvm-svn: 94262
 2010-01-23 00:26:28 +00:00
Victor Hernandez
7ce9006ba0 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store 
llvm-svn: 94260
 2010-01-23 00:17:34 +00:00
Chris Lattner
e46549ed67 teach MCAsmStreamer::EmitBytes to use .ascii and .asciz 
llvm-svn: 94259
 2010-01-23 00:15:00 +00:00
Victor Hernandez
f61bd354ef Make sure ValueFn starts off empty 
llvm-svn: 94256
 2010-01-23 00:03:28 +00:00
Evan Cheng
a238930f0b Enable pre-regalloc scheduling load clustering by default. 
llvm-svn: 94255
 2010-01-22 23:49:45 +00:00
Evan Cheng
1093210d30 Be more conservative with clustering f32 / f64 loads. 
llvm-svn: 94254
 2010-01-22 23:49:11 +00:00
Chris Lattner
f703377447 move "EOL" from asmprinter to dwarfprinter. It should eventually 
be completely eliminated, but today is not that day.

llvm-svn: 94253
 2010-01-22 23:47:11 +00:00
Chris Lattner
22ec298d24 remove uses of EOL. 
llvm-svn: 94252
 2010-01-22 23:43:14 +00:00
Chris Lattner
be728e94f1 add a new EmitCFAByte method and use it. 
llvm-svn: 94251
 2010-01-22 23:40:08 +00:00
Chris Lattner
de2a14c724 move uleb printing from asmprinter to dwarfprinter, mcize, 
cleanup and eliminate a bunch more uses of "EOL".

llvm-svn: 94250
 2010-01-22 23:18:42 +00:00
Jeffrey Yasskin
c200d5e99f Make OProfile support compile again after r93630 removed 
DebugLocTuple.  Also use an AssertingVH to ensure that MDNodes aren't
destroyed while the FilenameCache is using them.

llvm-svn: 94245
 2010-01-22 23:04:39 +00:00
Chris Lattner
6b1e1bb9e9 move sleb printing out of asmprinter into dwarf printer, make clients 
handle the comment better, MCize the non-.sleb case.

llvm-svn: 94244
 2010-01-22 22:56:55 +00:00
Devang Patel
81f0fa06d7 Remove MetadataBase class because it is not adding significant value. 
llvm-svn: 94243
 2010-01-22 22:52:10 +00:00
Dale Johannesen
b1ebe8137b Ignore DEBUG_VALUE when building live intervals; 
this makes the code work transparently the same
whether they're there or not.

llvm-svn: 94240
 2010-01-22 22:38:21 +00:00
Chris Lattner
576e41a375 add a new DwarfPrinter::EmitEncodingByte method which handles 
pretty printing encoding comments and eliminates redundancy on
the client side.  We now get pretty dwarf like this again:

        .byte   255                                         ## @LPStart Encoding = omit
        .byte   0                                           ## @TType Encoding = absptr
        .byte   0x28                                        ## @TType base offset
        .byte   3                                           ## Call site Encoding = udata4
        .byte   0x1a                                        ## Call site table size
...

llvm-svn: 94239
 2010-01-22 22:38:16 +00:00
Chris Lattner
7976cac884 rename the dwarf class to DwarfPrinter. This matches the filename 
and much more accurately describes what it is all about.

llvm-svn: 94233
 2010-01-22 22:23:57 +00:00
Chris Lattner
6779ef9325 fix indentation 
llvm-svn: 94232
 2010-01-22 22:19:51 +00:00
Chris Lattner
2fa5f5ce56 inline away the trivial AsmPrinter::EOL() method. 
llvm-svn: 94230
 2010-01-22 22:09:00 +00:00
Chris Lattner
19abca37d2 inline AsmPrinter::PrintHex into its two trivial callers. 
llvm-svn: 94228
 2010-01-22 21:57:56 +00:00
Chris Lattner
0347671f14 change this to be a static function instead of a method on asmprinter. 
llvm-svn: 94227
 2010-01-22 21:50:41 +00:00
Chris Lattner
92531ea22d make the loop comment printer print out a much better structured 
output.  An example:

        .align  4, 0x90
LBB1_5:                                                     ## %while.cond3
                                                            ##   Parent Loop BB1_1 Depth=1
                                                            ## =>  This Loop Header: Depth=2
                                                            ##       Child Loop BB1_8 Depth 3
                                                            ##       Child Loop BB1_6 Depth 3

llvm-svn: 94225
 2010-01-22 21:43:28 +00:00
Chris Lattner
639c136993 Changes to fix buffering that I forgot to commit with previous patch. 
llvm-svn: 94222
 2010-01-22 21:16:10 +00:00
Chris Lattner
bc2e117803 For blocks that are not loop headers, just print their loop depth and header BB. 
For loop headers, print Inner loop along with the other stuff so it doesn't take
an extra line.  We now get stuff like this:

LBB1_4:                                                     ## %land.end
                                                            ##   in Loop: Header=BB1_1 Depth=1
        notb    %al
        testb   $1, %al
        jne     LBB1_8

and:

LBB1_6:                                                     ## %while.cond7
                                                            ## Inner Loop Header: Depth=3
                                                            ##     Inside Loop BB1_5 Depth 2
                                                            ##   Inside Loop BB1_1 Depth 1

which still isn't great for loop headers, but is much less verbose.

llvm-svn: 94221
 2010-01-22 21:11:06 +00:00
Chris Lattner
c234f18c07 reenable the label loop comments and switch them to use the formatted 
comment emission stuff.  I'm going to rewrite this though because the
current output doesn't make sense.

llvm-svn: 94215
 2010-01-22 21:00:45 +00:00
Daniel Dunbar
5d1a686840 Mark EH_RETURN64 as CodeGenOnly. 
llvm-svn: 94205
 2010-01-22 20:16:37 +00:00
Benjamin Kramer
a56f170cc0 Another strncmp -> StringRef.startswith simplification. 
llvm-svn: 94203
 2010-01-22 20:00:21 +00:00
Chris Lattner
bc01d5b148 Convert some more random-comment-printing stuff to use 
AddComment and GetCommentOS.  Add a blank line between globals
(even in non-verbose mode) to make the assembly more readable.

llvm-svn: 94202
 2010-01-22 19:52:01 +00:00
Chris Lattner
20390f5205 add a new MCAsmStreamer::GetCommentOS method to simplify stuff 
that doesn't want to use twines.

llvm-svn: 94199
 2010-01-22 19:17:48 +00:00
Bob Wilson
8d14b72877 Revert 94059. It is breaking the MultiSource/Benchmarks/Prolangs-C/bison 
test on ARM.

llvm-svn: 94198
 2010-01-22 19:16:40 +00:00
Chris Lattner
5fb9cab9dc add missing break, PR6114, patch by M Wahab. 
llvm-svn: 94197
 2010-01-22 19:11:53 +00:00
Victor Hernandez
b2ccd2be93 Fix/strengthen verification of llvm.dbg.declare 
llvm-svn: 94195
 2010-01-22 19:06:12 +00:00
Victor Hernandez
e4d8ef8fc4 Keep ignoring pointer-to-pointer bitcasts 
llvm-svn: 94194
 2010-01-22 19:05:05 +00:00
Chris Lattner
f0076f14df use both the Mangler and the CBE's mangler for identifiers, 
this should fix a problem duncan saw handling symbols with '.' in them.

llvm-svn: 94192
 2010-01-22 18:33:00 +00:00
Chris Lattner
784036d536 rename addComment -> AddComment for consistency. 
llvm-svn: 94190
 2010-01-22 18:21:35 +00:00
Benjamin Kramer
13b3fa1f36 Simplify some uses of str(n)cmp with StringRef. 
llvm-svn: 94189
 2010-01-22 18:21:23 +00:00
Torok Edwin
46925cc515 Fix TimeValue::now() on Unix. 
TimeValue()::now().toEpochTime() is supposed to be the same as time(),
but it wasn't, because toEpoch subtracted PosixZeroTime, but now()
didn't add PosixZeroTime!
Add a unittest to check this works.

llvm-svn: 94178
 2010-01-22 15:51:31 +00:00
Dan Gohman
a527ad10cc Revert r94066, which was the patch which added a Verifier pass after 
LoopStrengthReduce, as it's causing too much trouble (even with the
old LoopStrengthReduce code).

llvm-svn: 94172
 2010-01-22 10:48:28 +00:00
Chris Lattner
af1c74d7e1 add comment support to the rest of the directives. 
llvm-svn: 94168
 2010-01-22 07:36:39 +00:00
Chris Lattner
e773b145a2 stop using strtoll, it gives windows heartburn. 
llvm-svn: 94167
 2010-01-22 07:34:12 +00:00
Chris Lattner
df1b7b6164 Add the ability for MCStreamer to emit comments on the same line as directives. 
Switch over the asm-verbose comment for double values to use it.  We now get:

_x:
	.long	343597384                                   ## double 1.231200e+02
	.long	1079953326

For example, note that the comment is on the same line as the .long.  Woo.

llvm-svn: 94166
 2010-01-22 07:29:22 +00:00
Chris Lattner
5eb0c8a2bd pass "-fasm-verbose" into createAsmStreamer. 
llvm-svn: 94165
 2010-01-22 07:06:15 +00:00
Chris Lattner
276811b58a Stop building RTTI information for *most* llvm libraries. Notable 
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
 2010-01-22 06:49:46 +00:00
Chris Lattner
437827ceb5 give PassNameParser a home. 
llvm-svn: 94162
 2010-01-22 06:29:25 +00:00
Chris Lattner
cb9776c350 add an out-of-line virtual method to CmpInst to give it a home. 
llvm-svn: 94161
 2010-01-22 06:25:37 +00:00
Chris Lattner
c07d7f41e3 elimiante the dynamic_cast's from opt. 
llvm-svn: 94160
 2010-01-22 06:03:06 +00:00
Chris Lattner
2a96a8340e drop the pass name from the output. 
llvm-svn: 94158
 2010-01-22 05:52:51 +00:00
Chris Lattner
7ad458c173 eliminate dynamic_cast from this file. 
llvm-svn: 94157
 2010-01-22 05:46:59 +00:00
Chris Lattner
f683d7d909 eliminate a bunch more unneeded dynamic_cast's. 
llvm-svn: 94156
 2010-01-22 05:37:10 +00:00
Chris Lattner
1bd9c3ec88 eliminate a bunch of dynamic_cast's. 
llvm-svn: 94155
 2010-01-22 05:24:46 +00:00
Chris Lattner
997ad42b6d eliminate a bunch of dynamic_cast's. 
llvm-svn: 94154
 2010-01-22 04:55:08 +00:00
Evan Cheng
72dbbce547 Teach pre-regalloc scheduler to schedule loads from nearby addresses. It may improve cache locality. This is controlled by -cluster-loads for now. 
llvm-svn: 94148
 2010-01-22 03:36:51 +00:00
Evan Cheng
8e25244a48 Add two target hooks to determine whether two loads are near and should be scheduled together. 
llvm-svn: 94147
 2010-01-22 03:34:51 +00:00
Chris Lattner
12c9016e6e add new file 
llvm-svn: 94132
 2010-01-22 01:58:44 +00:00
Chris Lattner
c0e2ef62fa move some files out of the llvm-mc tool into the MCParser library so 
other tools can link it.

llvm-svn: 94131
 2010-01-22 01:58:08 +00:00
Chris Lattner
84c0345065 forgot to svn add these, doh. 
llvm-svn: 94130
 2010-01-22 01:55:10 +00:00
Chris Lattner
9a84d96edf create a new MCParser library and move some stuff into it. 
llvm-svn: 94129
 2010-01-22 01:44:57 +00:00
Chris Lattner
2b19da4fa0 stub out a new TargetAsmLexer interface. 
llvm-svn: 94125
 2010-01-22 00:58:59 +00:00
Dan Gohman
525f7d7833 Revert LoopStrengthReduce.cpp to pre-r94061 for now. 
llvm-svn: 94123
 2010-01-22 00:46:49 +00:00
Jim Grosbach
231a0d01a9 Fix PR5694. The CMN instructions set the flags differently from CMP, so they 
cannot be directly interchanged for comparisons against negated values.
Disable the CMN instructions for the time being.

llvm-svn: 94119
 2010-01-22 00:08:13 +00:00
Victor Hernandez
728ab49966 No need to look through bitcasts for DbgInfoIntrinsic 
llvm-svn: 94114
 2010-01-21 23:09:12 +00:00
Victor Hernandez
ef9e66c909 DbgInfoIntrinsic no longer appear in an instruction's use list 
llvm-svn: 94113
 2010-01-21 23:08:36 +00:00
Victor Hernandez
1cc721ee56 No need to look through bitcasts for DbgInfoIntrinsic 
llvm-svn: 94112
 2010-01-21 23:07:15 +00:00
Victor Hernandez
d44671b931 DbgInfoIntrinsics no longer appear in an instruction's use list; so clean up looking for them in use iterations and remove OnlyUsedByDbgInfoIntrinsics() 
llvm-svn: 94111
 2010-01-21 23:05:53 +00:00
Dan Gohman
23ac1f6157 When inserting expressions for post-increment users which contain 
loop-variant components, adds must be inserted after the increment.
Keep track of the increment position for this case, and insert
these adds in the correct location.

llvm-svn: 94110
 2010-01-21 23:01:22 +00:00
Dan Gohman
2c93a3fa96 Include IVUsers information in LSR's debug output. 
llvm-svn: 94108
 2010-01-21 22:46:32 +00:00
Dan Gohman
3cce294b13 Prune the search for candidate formulae if the number of register 
operands exceeds the number of registers used in the initial
solution, as that wouldn't lead to a profitable solution anyway.

llvm-svn: 94107
 2010-01-21 22:42:49 +00:00
Evan Cheng
c3ad04c825 Trim unneeded includes. 
llvm-svn: 94105
 2010-01-21 21:44:43 +00:00
Dan Gohman
a4954135a7 Add a comment. 
llvm-svn: 94104
 2010-01-21 21:31:09 +00:00
Chris Lattner
642049e127 It turns out that this #include is needed because otherwise 
ValueMapper.cpp ends up calling an out of line 
__ZNK4llvm12PATypeHolder3getEv, which is a template and llvm-config
determines arbitrarily to use the one in libipo.  This sucks, but
keeping the #include is a reasonable workaround.

llvm-svn: 94103
 2010-01-21 21:29:25 +00:00