working. To support this, add an is_displayed() function to raw_ostream,
and generalize Process::StandardOutIsDisplayed and friends in order to
support it.

Also, call RemoveFileOnSignal before creating a file instead of after, so
that the file isn't left behind if the program is interrupted between when
the file is created and RemoveFileOnSignal is called.

While here, add a -S to llvm-extract and port it to IRReader so that it
supports assembly input.

llvm-svn: 81568

that things like .word can be parsed as target specific.  Moved parsing .word
out of AsmParser.cpp into X86AsmParser.cpp as it is 2 bytes on X86 and 4 bytes
for other targets that support the .word directive.

llvm-svn: 81461

llvm-svn: 81452

llvm-svn: 81445

llvm-svn: 81416

llvm-svn: 81154

llvm-svn: 81109

llvm-svn: 81082

preparation of supporting other targets. Then changed the lexer to parse these
as tokens.

llvm-svn: 81050

supporting other targets.  Changed the code to pass MCAsmInfo to the parser
and the lexer.  Then changed the lexer to use CommentString from MCAsmInfo
instead of a literal '#' character.

llvm-svn: 81046

from MCAsmLexer.h in preparation of supporting other targets.  Changed the
X86AsmParser code to reflect this by removing AsmLexer::LexPercent and looking
for AsmToken::Percent when parsing in places that used AsmToken::Register.
Then changed X86ATTAsmParser::ParseRegister to parse out registers as an
AsmToken::Percent followed by an AsmToken::Identifier.

llvm-svn: 80929

llvm-svn: 80927

llvm-svn: 80922

llvm-svn: 80899

llvm-svn: 80891

llvm-svn: 80842

transparently read either LLVM Assembly or LLVM Bitcode files.

llvm-svn: 80829

llvm-svn: 80578

llvm-svn: 80577

llvm-svn: 80576

llvm-svn: 80574

llvm-svn: 80571

llvm-mc: Switch MCExpr construction to using static member functions, and taking the MCContext (which now owns all MCExprs).

llvm-svn: 80569

llvm-svn: 80567

llvm-svn: 80534

argpromotion and structretpromote.  Basically, when replacing
a function, they used the 'changeFunction' api which changes
the entry in the function map (and steals/reuses the callgraph
node).

This has some interesting effects: first, the problem is that it doesn't
update the "callee" edges in any callees of the function in the call graph.
Second, this covers for a major problem in all the CGSCC pass stuff, which 
is that it is completely broken when functions are deleted if they *don't*
reuse a CGN.  (there is a cute little fixme about this though :).

This patch changes the protocol that CGSCC passes must obey: now the CGSCC 
pass manager copies the SCC and preincrements its iterator to avoid passes
invalidating it.  This allows CGSCC passes to mutate the current SCC.  However
multiple passes may be run on that SCC, so if passes do this, they are now
required to *update* the SCC to be current when they return.

Other less interesting parts of this patch are that it makes passes update
the CG more directly, eliminates changeFunction, and requires clients of
replaceCallSite to specify the new callee CGN if they are changing it.

llvm-svn: 80527

- Switch Emit{CommonSymbol,Zerofill} to take alignment in bytes (for consistency).

llvm-svn: 80484

(See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090824/085620.html)

llvm-svn: 80349

llvm-svn: 80343

llvm-svn: 80342

--- Reverse-merging r80305 into '.':
U    tools/llvm-mc/AsmParser.cpp

llvm-svn: 80309

llvm-svn: 80305

llvm-svn: 80240

llvm-svn: 80239

 - No relocations yet, of course.

llvm-svn: 80235

llvm-svn: 80230

llvm-svn: 80193

 - Of course, nothing actually can provide this interface yet.

llvm-svn: 80188

sections, etc.
 - The quick and dirty way, just clone the TargetLoweringObjectFile
   code. Eventually this should be shared... somehow.

llvm-svn: 80168

 - I moved section creation back into AsmParser. I think policy decisions like
   this should be pushed higher, not lower, when possible (in addition the
   assembler has flags which change this behavior, for example).

llvm-svn: 80162