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9486 Commits

Author SHA1 Message Date
Evan Cheng
619f1b8a94 Coalescer should not delete copy instructions whose defs are partially dead. e.g. 
%RDI<def,dead> = MOV64rr %RAX<kill>, %EDI<imp-def>

llvm-svn: 100804
 2010-04-08 20:02:37 +00:00
Ted Kremenek
141d32b7e9 Fix -Wsign-compare warning (issued by clang++). 
llvm-svn: 100799
 2010-04-08 18:49:30 +00:00
Devang Patel
17b5b1dd88 Rename a function. 
llvm-svn: 100797
 2010-04-08 18:43:56 +00:00
Chris Lattner
f6e9c0c4bd implicit defs get added to the end of machine instrs sometimes. Scan the whole instruction for the metadata operand instead of assuming it will be at the end of the instruction. 
llvm-svn: 100792
 2010-04-08 18:20:52 +00:00
Devang Patel
89756fdbfc One instruction may start (or end) multiple lexical scopes. 
There is no need to remember labels identifying regions marked by such instructions in each scope.

llvm-svn: 100781
 2010-04-08 16:50:29 +00:00
Devang Patel
3cc4a24666 Remove dead code. 
llvm-svn: 100771
 2010-04-08 15:48:02 +00:00
Devang Patel
b9f9a00513 Delete out of date comment. 
llvm-svn: 100769
 2010-04-08 15:41:13 +00:00
Devang Patel
9ada7b28a2 Refactor. 
llvm-svn: 100768
 2010-04-08 15:37:09 +00:00
Benjamin Kramer
0fb23008bb Use twines to simplify calls to report_fatal_error. For code size and readability. 
llvm-svn: 100756
 2010-04-08 10:44:28 +00:00
Evan Cheng
3fa0b6fb03 Avoid using f64 to lower memcpy from constant string. It's cheaper to use i32 store of immediates. 
llvm-svn: 100751
 2010-04-08 07:37:57 +00:00
Evan Cheng
2f7cee1730 Make post regalloc machine licm functional. It now passes all of MultiSource. 
llvm-svn: 100742
 2010-04-08 01:03:47 +00:00
Chris Lattner
579e7eb423 convert a report_fatal_error that I was able to trigger into a nice error 
so the user at least knows what inline asm is a problem.  For example:

error: inline asm not supported yet: don't know how to handle tied indirect register inputs
pr8788-1.c:14:10: note: generated from here
    asm ("\n" : "+r" (stack->regs)
         ^

Instead of:
fatal error: error in backend: Don't know how to handle tied indirect register inputs yet!

llvm-svn: 100731
 2010-04-08 00:09:16 +00:00
Chris Lattner
f9fbc74e40 minor tidying. 
llvm-svn: 100725
 2010-04-07 23:50:38 +00:00
Chris Lattner
96ed85d7ab use assertions instead of unreachable for logic errors. 
llvm-svn: 100724
 2010-04-07 23:47:51 +00:00
Chris Lattner
393ea6fc22 introduce a new recoverable error handling API to LLVMContext 
and use it in one place in inline asm handling stuff.  Before
we'd generate this for an invalid modifier letter:

$ clang asm.c -c -o t.o
fatal error: error in backend: Invalid operand found in inline asm: 'abc incl    ${0:Z}'
INLINEASM <es:abc incl    ${0:Z}>, 10, %EAX<def>, 2147483657, %EAX, 14, %EFLAGS<earlyclobber,def,dead>, <!-1>


Now we generate this:

$ clang asm.c -c -o t.o
error: invalid operand in inline asm: 'incl    ${0:Z}'
asm.c:3:12: note: generated from here
  __asm__ ("incl    %Z0" : "+r" (X));
           ^
1 error generated.

This is much better but still admittedly not great ("why" is the operand 
invalid??), codegen should try harder with its diagnostics :)

llvm-svn: 100723
 2010-04-07 23:40:44 +00:00
Chris Lattner
80b41881bc rename llvm::llvm_report_error -> llvm::report_fatal_error 
llvm-svn: 100709
 2010-04-07 22:58:41 +00:00
Chris Lattner
0768c834fe remove some unneeded errorhandling stuff. 
llvm-svn: 100703
 2010-04-07 22:44:07 +00:00
Chris Lattner
cc827ee016 tidy up 
llvm-svn: 100700
 2010-04-07 22:29:10 +00:00
Anton Korobeynikov
e5c1563130 Remove late ARM codegen optimization pass committed by accident. 
It is not ready for public yet.

llvm-svn: 100673
 2010-04-07 18:23:27 +00:00
Anton Korobeynikov
f93145e685 Initial support for different kinds of FU reservation. 
llvm-svn: 100645
 2010-04-07 18:19:32 +00:00
Anton Korobeynikov
bf7bbe3e94 Factor out scoreboard into separate class. This way we might have several different score boards. 
llvm-svn: 100644
 2010-04-07 18:19:24 +00:00
Anton Korobeynikov
d873a16430 Add hook to insert late LLVM=>LLVM passes just before isel 
llvm-svn: 100640
 2010-04-07 18:18:42 +00:00
Chris Lattner
f520500a06 fix 80 col violation, patch by Alastair Lynn 
llvm-svn: 100639
 2010-04-07 18:13:33 +00:00
Chris Lattner
7816ae8fd0 add a comment line that got dropped 
llvm-svn: 100638
 2010-04-07 18:10:38 +00:00
Chris Lattner
60e5f55565 fix a latent bug my inline asm stuff exposed: 
MachineOperand::isIdenticalTo wasn't handling metadata operands.

llvm-svn: 100636
 2010-04-07 18:03:19 +00:00
Benjamin Kramer
389c863692 Remove unused method. 
llvm-svn: 100620
 2010-04-07 11:23:46 +00:00
Torok Edwin
9028487b8b Workaround the breakage in r100616 by guarding all timers with 
TimePassesIsEnabled. This should allow make check to pass.

llvm-svn: 100618
 2010-04-07 10:44:46 +00:00
Bill Wendling
8282504a14 Use the "NamedGroupTimer" class to categorize DWARF emission better. 
llvm-svn: 100616
 2010-04-07 09:28:04 +00:00
Benjamin Kramer
663f265996 Use raw_ostream. 
llvm-svn: 100615
 2010-04-07 09:26:51 +00:00
Evan Cheng
0f71b51991 Add comments for missed opportunities. 
llvm-svn: 100610
 2010-04-07 06:00:33 +00:00
Evan Cheng
eb32efa3b6 Fix typo. 
llvm-svn: 100609
 2010-04-07 05:59:12 +00:00
Chris Lattner
122572e13a Have the inst emitter add the !srcloc mdnode to the machine instr. 
Have the asmprinter use the mdnode to scavenge a source location if
present.  Document this nonsense in langref.

llvm-svn: 100607
 2010-04-07 05:38:05 +00:00
Chris Lattner
2bf164dbf2 remove another magic number. 
llvm-svn: 100606
 2010-04-07 05:27:36 +00:00
Chris Lattner
dde7376e9d Three changes: 
1. Introduce some enums and accessors in the InlineAsm class
   that eliminate a ton of magic numbers when handling inline
   asm SDNode.
2. Add a new MDNodeSDNode selection dag node type that holds
   a MDNode (shocking!)
3. Add a new argument to ISD::INLINEASM nodes that hold !srcloc
   metadata, propagating it to the instruction emitter, which
   drops it.

No functionality change.

llvm-svn: 100605
 2010-04-07 05:20:54 +00:00
Dale Johannesen
c0f9c29448 Move printing of target-indepedent DEBUG_VALUE comments 
into AsmPrinter.  Target-dependent form is still generated
by FastISel and still handled in X86 code.

llvm-svn: 100596
 2010-04-07 01:15:14 +00:00
Evan Cheng
ac90d47ea3 Post regalloc LICM. Work in progress. 
llvm-svn: 100592
 2010-04-07 00:41:17 +00:00
Devang Patel
bcab88162a Do not emit specification DIE with DW_AT_specification attribute for member functions of a funcation local class. This trips gdb's partial scan of DIEs at load time. Fixes Radar 7833483. 
llvm-svn: 100586
 2010-04-06 23:53:48 +00:00
John McCall
e20cc3b28c Fix a number of clang -Wsign-compare warnings that didn't have an obvious 
solution.  The only reason these don't fire with gcc-4.2 is that gcc turns off
part of -Wsign-compare in C++ on accident.

llvm-svn: 100581
 2010-04-06 23:35:53 +00:00
Dale Johannesen
2a51b8abe5 Revert 100573, it's causing some testsuite problems. 
llvm-svn: 100578
 2010-04-06 22:45:26 +00:00
Dale Johannesen
fefeacda3b Move printing of DEBUG_VALUE comments to target-independent place. 
There is probably a more elegant way to do this.

llvm-svn: 100573
 2010-04-06 22:21:07 +00:00
Dale Johannesen
fef6eb4076 Allow for the possibility that a debug-value points 
to a SDNode that didn't have code generated for it.

llvm-svn: 100566
 2010-04-06 21:59:56 +00:00
Stuart Hastings
4f6cdc07e9 Reverting 100530 & 100531 due to regressions in the GDB test suite. 
llvm-svn: 100563
 2010-04-06 21:38:29 +00:00
Evan Cheng
99617bac24 Code clean up. Move includes from VirtRegRewriter.h to VirtRegRewriter.cpp. 
llvm-svn: 100532
 2010-04-06 17:19:55 +00:00
Stuart Hastings
749cf45929 Revise debug info machinery to digest nested functions and classes. 
A certain GDB testsuite case (local.cc) has a function nested inside a
class nested inside another function.  GCC presents the innermost
function to llvm-convert first.  Heretofore, the debug info mistakenly
placed the inner function at module scope.  This patch walks the GCC
context links and instantiates the outer class and function so the
debug info is properly nested.  Radar 7426545.

llvm-svn: 100530
 2010-04-06 17:19:32 +00:00
Mon P Wang
c0da8af5c3 Remove assert to treat memmove and memset like memcpy 
llvm-svn: 100521
 2010-04-06 08:27:51 +00:00
Chris Lattner
960095d2c8 propagate cookie management out one layer of function calls. 
llvm-svn: 100510
 2010-04-06 00:58:50 +00:00
Chris Lattner
344a742ed1 report errors through LLVMContext's inline asm handler if available. 
llvm-svn: 100509
 2010-04-06 00:55:39 +00:00
Chris Lattner
8c1f45d90b Give MachineModuleInfo an actual Module*. 
llvm-svn: 100508
 2010-04-06 00:51:52 +00:00
Devang Patel
5e0cb53223 Remove unnecessary include. 
llvm-svn: 100505
 2010-04-06 00:38:32 +00:00
Evan Cheng
c6dc63d62c Fix an obvious copy-n-paste bug. It's not known to cause any miscompilation. 
llvm-svn: 100494
 2010-04-05 23:33:29 +00:00
Chris Lattner
f753452587 Give AsmParser an option to control whether it finalizes 
the stream.  New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
000000000000000b	movl	%eax,(%rsp)
000000000000000e	movl	%eax,0x04(%rsp)
0000000000000012	addq	$0x08,%rsp
0000000000000016	ret

llvm-svn: 100492
 2010-04-05 23:15:42 +00:00
Chris Lattner
5b4c7591ac add .o file writing for inline asm in llc. Here's a silly 
demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
<inline asm>:1:2: error: unrecognized instruction
	abc incl    %eax
	^
LLVM ERROR: Error parsing inline asm

Only problem seems to be that the parser finalizes OutStreamer 
at the end of the first inline asm, which isn't what we want.
For example:

$ cat asm.c
int foo(int X) {
 __asm__ ("incl    %0" : "+r" (X));
 return X;
}
$ clang asm.c -S -o - -emit-llvm | llc
...
	subq	$8, %rsp
	movl	%edi, (%rsp)
	movl	%edi, %eax
	## InlineAsm Start
	incl    %eax
	## InlineAsm End
	movl	%eax, (%rsp)
	movl	%eax, 4(%rsp)
	addq	$8, %rsp
	ret
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
$ 

don't stop at inc!

llvm-svn: 100491
 2010-04-05 23:11:24 +00:00
Bill Wendling
bf50ddf6ac Output floating point representations in DWARF format. This is done by outputing 
the FP encoding directly as a hex representation.

llvm-svn: 100487
 2010-04-05 22:59:21 +00:00
Chris Lattner
269737461d stringref-ize the MemoryBuffer::get apis. This requires 
a co-committed clang patch.

llvm-svn: 100485
 2010-04-05 22:42:30 +00:00
Dan Gohman
302746a632 Add a comment. 
llvm-svn: 100459
 2010-04-05 20:24:08 +00:00
Chris Lattner
7d609ea6cb lowering a volatile llvm.memcpy to a libc memcpy is ok. 
PR6779

llvm-svn: 100457
 2010-04-05 20:11:45 +00:00
Dan Gohman
2aff0055c1 Don't do code sinking on unreachable blocks. It's unprofitable and hazardous. 
llvm-svn: 100455
 2010-04-05 19:17:22 +00:00
Chris Lattner
aa58ed7c00 remove the now-redundant MMI pointer in SelectionDAG. 
llvm-svn: 100419
 2010-04-05 06:19:28 +00:00
Chris Lattner
91309715b4 hopefully sate the clang self host build, which is apparently 
instantiating some folding set stuff that GCC isn't, requiring 
some types to not be incomplete.

I don't know if clang is right or wrong, but unbreaking the
bot is goodness.  Here's the broken build:
http://google1.osuosl.org:8011/builders/clang-x86_64-darwin10-selfhost/builds/1813/steps/compile.llvm.stage2/logs/stdio

llvm-svn: 100418
 2010-04-05 06:12:01 +00:00
Chris Lattner
097a332684 remove some redundant MMI arguments. 
llvm-svn: 100417
 2010-04-05 06:10:13 +00:00
Chris Lattner
6f3c3f60ce unthread MMI from FastISel 
llvm-svn: 100416
 2010-04-05 06:05:26 +00:00
Chris Lattner
cfca39ef59 remove the MMI pointer from MachineFrameInfo. 
llvm-svn: 100415
 2010-04-05 05:57:52 +00:00
Chris Lattner
811d538611 enhance MachineFunction to have a MMI pointer. 
llvm-svn: 100414
 2010-04-05 05:49:50 +00:00
Chris Lattner
341747c032 privatize more stuff, eliminate vtables. 
llvm-svn: 100410
 2010-04-05 05:32:45 +00:00
Chris Lattner
5d96bd2bbe reprivatize now that DwarfWriter is gone. 
llvm-svn: 100409
 2010-04-05 05:31:04 +00:00
Chris Lattner
59156acba1 prune #includes, MMI can never be null 
llvm-svn: 100408
 2010-04-05 05:28:23 +00:00
Chris Lattner
f2fb401571 prune #includes, realize the MMI can never be null. 
llvm-svn: 100407
 2010-04-05 05:24:55 +00:00
Chris Lattner
37d4f1e56e finally blast DwarfWriter away. 
llvm-svn: 100406
 2010-04-05 05:12:59 +00:00
Chris Lattner
df6b0827aa change AsmPrinter to use DwarfDebug/DwarfException directly 
instead of going through DwarfWriter.

llvm-svn: 100405
 2010-04-05 05:11:15 +00:00
Chris Lattner
248e65ec05 trim some spurious references to DwarfWriter. SDIsel really doesn't 
need it anymore, so don't addRequire it.

llvm-svn: 100400
 2010-04-05 04:09:20 +00:00
Chris Lattner
16ed3bfb2b eliminate DwarfDebug::shouldEmit, which is the same now as MMI::hasDebugInfo 
llvm-svn: 100386
 2010-04-05 03:52:55 +00:00
Chris Lattner
697c2edddc fix a regression on 2009-08-17-DebugInfo.m 
llvm-svn: 100385
 2010-04-05 03:49:26 +00:00
Chris Lattner
c930f73b4d selection dag doesn't need DwarfWriter, remove some tendrils. 
llvm-svn: 100382
 2010-04-05 02:23:33 +00:00
Chris Lattner
1fda8b3a8b fastisel doesn't need DwarfWriter, remove some tendricles. 
llvm-svn: 100381
 2010-04-05 02:19:28 +00:00
Chris Lattner
6040137045 just have all targets create the DwarfWriter. 
llvm-svn: 100377
 2010-04-05 00:42:55 +00:00
Chris Lattner
fd80e7cca8 nuke DwarfPrinter 
llvm-svn: 100375
 2010-04-05 00:27:29 +00:00
Chris Lattner
122288eb97 make DwarfException not inherit from DwarfPrinter. 
llvm-svn: 100374
 2010-04-05 00:26:50 +00:00
Chris Lattner
c1b63a2dfa change SizeOf to take AsmPrinter instead of TargetData, 
simplifying a bunch of code.

llvm-svn: 100373
 2010-04-05 00:18:22 +00:00
Chris Lattner
2b89b0d279 1) make DIE take AsmPrinter instead of DwarfPrinter. 
2) change DwarfDebug to not inherit from DwarfPrinter.

llvm-svn: 100372
 2010-04-05 00:13:49 +00:00
Chris Lattner
0744c47856 Move EmitFrameMoves into AsmPrinter. 
llvm-svn: 100371
 2010-04-04 23:41:46 +00:00
Chris Lattner
303e9e2e0a simplify code and reduce indentation. 
llvm-svn: 100369
 2010-04-04 23:31:58 +00:00
Chris Lattner
2eaed62f7c now that the magic is dispelled, move EmitSectionOffset to AsmPrinter. 
llvm-svn: 100368
 2010-04-04 23:25:33 +00:00
Chris Lattner
ecdad4bb0c eliminate the magic AbsoluteDebugSectionOffsets MAI hook, 
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.

llvm-svn: 100367
 2010-04-04 23:22:29 +00:00
Chris Lattner
957eddbcb0 only emit section labels if we have debug info, fixing a few 
regtest failures.

llvm-svn: 100366
 2010-04-04 23:17:54 +00:00
Chris Lattner
7295a273aa I was wrong, ocaml isn't referencing 'Ldata_begin', so remove it. 
llvm-svn: 100365
 2010-04-04 23:10:38 +00:00
Chris Lattner
4bd354ecd8 add some assertions to EmitSectionOffset. 
llvm-svn: 100364
 2010-04-04 23:06:31 +00:00
Chris Lattner
a991a67a29 stop emitting some dead L labels. 
llvm-svn: 100363
 2010-04-04 23:02:02 +00:00
Chris Lattner
265b59119d Store an use the symbols emitted at the start of the debug 
sections instead of magically rematerializing them later.

llvm-svn: 100362
 2010-04-04 22:59:04 +00:00
Chris Lattner
53453a2dc8 remove the didInitial ivar, rename emitInitial to be more 
descriptive, change EmitSectionOffset back to taking a
symbol instead of a string.

llvm-svn: 100361
 2010-04-04 22:33:59 +00:00
Chris Lattner
df18fb3a6d simplify EmitSectionOffset a little bit, improve comments. 
llvm-svn: 100360
 2010-04-04 22:25:14 +00:00
Chris Lattner
168d49e6cd The "IsSmall" argument to EmitSectionOffset is always true, 
constant fold it away.

llvm-svn: 100356
 2010-04-04 21:34:40 +00:00
Chris Lattner
da4fe3e7d2 eliminate the "isEH" argument to EmitSectionOffset. 
llvm-svn: 100355
 2010-04-04 21:31:54 +00:00
Chris Lattner
2f1c065cef isAbsoluteEHSectionOffsets always returns false, eliminate it 
and substitute false at the one call site.

llvm-svn: 100354
 2010-04-04 21:29:44 +00:00
Chris Lattner
c83be77854 move some more stuff to asmprinter. 
llvm-svn: 100351
 2010-04-04 20:20:50 +00:00
Chris Lattner
7214d4d564 simplify some code. 
llvm-svn: 100350
 2010-04-04 20:10:41 +00:00
Chris Lattner
703ccb1b4c move EmitEncodingByte to AsmPrinter. 
llvm-svn: 100349
 2010-04-04 20:04:21 +00:00
Chris Lattner
071eb40cd2 move EmitCFAByte to AsmPrinter. 
llvm-svn: 100348
 2010-04-04 20:01:25 +00:00
Chris Lattner
24ed58efd1 inline EmitDifference away. 
llvm-svn: 100347
 2010-04-04 19:58:12 +00:00
Chris Lattner
779e051357 resolve a fixme. 
llvm-svn: 100346
 2010-04-04 19:28:59 +00:00
Chris Lattner
c2b0a02be0 move gettemplabel and getdwlabel to AsmPrinter and rename 
them for consistency.

llvm-svn: 100345
 2010-04-04 19:25:43 +00:00