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Author SHA1 Message Date
Douglas Gregor
41de3d792a Remove MaybeOwningPtr. We're going to use reference-counting instead. 
llvm-svn: 100499
 2010-04-05 23:53:46 +00:00
Jakob Stoklund Olesen
fcc2dfa1b4 Properly enable load clustering. 
Operand 2 on a load instruction does not have to be a RegisterSDNode for this to
work.

llvm-svn: 100497
 2010-04-05 23:48:02 +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
Chris Lattner
c1d1549692 add a comment. 
llvm-svn: 100490
 2010-04-05 23:07:42 +00:00
Chris Lattner
8b9eaae8d5 tidy #includes. 
llvm-svn: 100489
 2010-04-05 23:07:18 +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
cf8b0d4228 update unit test for api change. 
llvm-svn: 100486
 2010-04-05 22:49:48 +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
Evan Cheng
7d177beb1d Add nounwind. 
llvm-svn: 100482
 2010-04-05 22:30:05 +00:00
Evan Cheng
d72090a658 Fix ADD32rr_alt instruction encoding bug. Patch by Marius Wachtler. 
llvm-svn: 100480
 2010-04-05 22:21:09 +00:00
Chris Lattner
e25e981494 fix a really nasty bug that Evan was tracking in SCCP. When resolving 
undefs in branches/switches, we have two cases: a branch on a literal
undef or a branch on a symbolic value which is undef.  If we have a
literal undef, the code was correct: forcing it to a constant is the
right thing to do.

If we have a branch on a symbolic value that is undef, we should force
the symbolic value to a constant, which then makes the successor block
live.  Forcing the condition of the branch to being a constant isn't 
safe if later paths become live and the value becomes overdefined.  This
is the case that 'forcedconstant' is designed to handle, so just use it.

This fixes rdar://7765019 but there is no good testcase for this, the
one I have is too insane to be useful in the future.

llvm-svn: 100478
 2010-04-05 22:14:48 +00:00
Chris Lattner
7cd9ea25c1 some code cleanups, use SwitchInst::findCaseValue, reduce indentation 
llvm-svn: 100468
 2010-04-05 21:18:32 +00:00
Evan Cheng
98db71c632 Code clean up. 
llvm-svn: 100467
 2010-04-05 21:16:25 +00:00
Eric Christopher
7205f8f510 Remove FIXME. 
llvm-svn: 100466
 2010-04-05 21:14:32 +00:00
Douglas Gregor
394c3bc02e Introduce MaybeOwningPtr, a smart pointer that may (or may not) have 
ownership over the pointer it contains. Useful when we want to
communicate ownership while still having several clients holding on to
the same pointer *without* introducing reference counting.

llvm-svn: 100463
 2010-04-05 21:09:22 +00:00
Jeffrey Yasskin
39cdeee4c3 Fix OProfileJITEventListener build for new DebugLoc. 
llvm-svn: 100461
 2010-04-05 21:09:12 +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
Dan Gohman
fab42b8e7b Add an isReachableFromEntry to MachineDominators, following the one 
in Dominators.

llvm-svn: 100454
 2010-04-05 19:16:38 +00:00
Tanya Lattner
899c498b79 Update to note that clang has a baseline now. Dropping x86-32 for MacOS. 
llvm-svn: 100447
 2010-04-05 18:35:37 +00:00
Chris Lattner
ae3049ffa0 don't use emitlabel in the arm asm printer yet, the order 
isn't well specified.  ARM really needs to have its instprinter
finished at some point.

llvm-svn: 100439
 2010-04-05 17:52:31 +00:00
Owen Anderson
3694d62450 Push const through the regex engine. Fixes some of the warnings in PR6616. 
llvm-svn: 100438
 2010-04-05 17:50:20 +00:00
Chris Lattner
bf754085cc fix a couple problems I introduced handling symbols 
with spaces in them.  Sym->getName()  !=   OS << *Sym

llvm-svn: 100434
 2010-04-05 16:32:14 +00:00
Benjamin Kramer
fdb716eb4d Disambiguate else. 
llvm-svn: 100423
 2010-04-05 10:17:15 +00:00
Chris Lattner
1f68705ad9 trim some prototypes. 
llvm-svn: 100420
 2010-04-05 06:21:01 +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
Nick Lewycky
828e7cab3e Add MC and LTO, two terms I just had to explain on IRC. 
llvm-svn: 100413
 2010-04-05 05:48:47 +00:00
Chris Lattner
ef9a9ee3a2 simplify code. 
llvm-svn: 100412
 2010-04-05 05:48:36 +00:00
Chris Lattner
4a201bab8f prune #includes. 
llvm-svn: 100411
 2010-04-05 05:43:16 +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
Johnny Chen
de83f26ce2 Get rid of traling whitespaces. No functionality change. 
llvm-svn: 100404
 2010-04-05 04:51:50 +00:00
Johnny Chen
ac6c45034f The disassembler impl. of MCDisassembler::getInstruction() was using the pattern 
uint32_t insn;
  MemoryObject.readBytes(Address, 4, (uint8_t*)&insn, NULL)

to read 4 bytes of memory contents into a 32-bit uint variable.  This leaves the
interpretation of byte order up to the host machine and causes PPC test cases of
arm-tests, neon-tests, and thumb-tests to fail.  Fixed to use a byte array for
reading the memory contents and shift the bytes into place for the 32-bit uint
variable in the ARM case and 16-bit halfword in the Thumb case.

llvm-svn: 100403
 2010-04-05 04:46:17 +00:00
Chris Lattner
57240dc0db implement EmitFunctionEntryLabel to emit the .cc_top directive, 
allowing xcore to use the normal runOnMachineFunction 
implementation.

llvm-svn: 100402
 2010-04-05 04:44:02 +00:00
Chris Lattner
89c15f926a don't reference DwarfWriter 
llvm-svn: 100401
 2010-04-05 04:11:11 +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
74ce04b9bc prune some #includes. 
llvm-svn: 100399
 2010-04-05 04:04:10 +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