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9136 Commits

Author SHA1 Message Date
Chris Lattner
bfdbd2f3a2 reimplement the string pool used for inlined function 
entries to not thrash std::strings and MCSymbols.

llvm-svn: 98415
 2010-03-13 02:17:42 +00:00
Chris Lattner
14ab9784f4 remove gone method, grr symlinks. 
llvm-svn: 98392
 2010-03-12 21:30:49 +00:00
Chris Lattner
7a2e6110bc inline the now-trivial implementation of GetGlobalValueSymbol into 
some of its callers.

llvm-svn: 98388
 2010-03-12 21:09:07 +00:00
Chris Lattner
c101ad818c give Mangler access to TargetData. 
llvm-svn: 98378
 2010-03-12 20:47:28 +00:00
Chris Lattner
01e70df9b2 finally give Mangler a getSymbol method, which returns an MCSymbol 
for a global instead of messing around with string buffers.

llvm-svn: 98366
 2010-03-12 18:55:20 +00:00
Chris Lattner
04cd48f865 remove dead code. 
llvm-svn: 98365
 2010-03-12 18:49:32 +00:00
Chris Lattner
956582f876 make the mangler take an MCContext instead of an MAI. 
No functionality change.

llvm-svn: 98363
 2010-03-12 18:44:54 +00:00
Chris Lattner
f4dce6a6d8 remove MAI argument from createAsmStreamer since it 
can get it from the context now.

llvm-svn: 98361
 2010-03-12 18:28:53 +00:00
Chris Lattner
4cc9a9004f fix a bug emitting .secrel32 that I introduced, PR6587, patch 
by A.Mazur!

llvm-svn: 98360
 2010-03-12 18:10:35 +00:00
Jeffrey Yasskin
824bd1b30d Free DbgScopes in DwarfDebug::endFunction(). Also increased the const-ness of 
several fields to make it easier to figure out where bugs might be creeping in.

llvm-svn: 98358
 2010-03-12 17:45:06 +00:00
Duncan Sands
086a80eee3 Revert turning copysignl into a COPYSIGN node for the moment: 
ppc calls copysignl with a 128 bit ppc long double, resulting
in a node that the type legalizer doesn't know how to expand.

llvm-svn: 98357
 2010-03-12 17:41:34 +00:00
Duncan Sands
aeed41b97a Now that it's supported, turn copysignl into a COPYSIGN node. 
llvm-svn: 98348
 2010-03-12 12:13:59 +00:00
Duncan Sands
5dcc3b328d Fix PR6522: implement copysign expansion for x86 long double 
(it seems that FreeBSD doesn't have copysignl).  Done by
removing a bunch of assumptions from the code.  This may also
help with sparc 128 bit floats.

llvm-svn: 98346
 2010-03-12 11:45:06 +00:00
Chris Lattner
80ab250a1c fix PR6577, a bug in sdbuilder lowering select instructions 
whose true value was not Val#0.

llvm-svn: 98336
 2010-03-12 07:15:36 +00:00
Devang Patel
93aa350213 There is no need to create specification DIE for definitions at DIFile level. 
llvm-svn: 98302
 2010-03-11 23:44:52 +00:00
Jakob Stoklund Olesen
1c8c4e2bb2 Extract methods from LocalRewriter::RewriteMBB bringing it down to 666 lines. 
llvm-svn: 98295
 2010-03-11 23:04:34 +00:00
Chris Lattner
debc026df2 change MCContext to always have an MCAsmInfo. 
llvm-svn: 98293
 2010-03-11 22:53:35 +00:00
Chris Lattner
5aefaeb42e fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference 
where we used ot create an MCSymbol for ".".  Now emit an assembler
temporary label and reference it instead of "." textually.

rdar://7739457

llvm-svn: 98292
 2010-03-11 21:55:20 +00:00
Dan Gohman
6b1b9e37d7 Remove getWidenVectorType, which is no longer used. 
llvm-svn: 98289
 2010-03-11 21:39:57 +00:00
Chris Lattner
1ce9dfd498 rename getSymbolForDwarf* to getExprForDwarf* since it returns 
an MCExpr and not an MCSymbol.  Change it to take an MCStreamer,
which is currently unused.

No functionality change.

llvm-svn: 98278
 2010-03-11 19:41:58 +00:00
Evan Cheng
e1c0438e7b In case of tail call size of Ins and InVals may not match. 
llvm-svn: 98277
 2010-03-11 19:38:18 +00:00
Jeffrey Yasskin
239beb0e85 Avoid leaking CompileUnits in DwarfDebug.cpp. 
llvm-svn: 98268
 2010-03-11 18:29:55 +00:00
Richard Osborne
9c71a0a5ba Add a new jump table encoding to indicate jump tables entries 
are inside the function by the target at the point of use.

llvm-svn: 98255
 2010-03-11 14:58:16 +00:00
Evan Cheng
4ef6d8fa15 The check for coalescing a virtual register to a physical register, e.g. 
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).

llvm-svn: 98251
 2010-03-11 08:20:21 +00:00
Daniel Dunbar
b24134670c Remove dead include. 
llvm-svn: 98225
 2010-03-11 02:28:48 +00:00
Dale Johannesen
15ff882aa1 Fix debug_value handling. 
llvm-svn: 98224
 2010-03-11 02:10:24 +00:00
Daniel Dunbar
687d99cfa8 MC: Provide MCAssembler with a TargetAsmBackend. 
llvm-svn: 98222
 2010-03-11 01:34:27 +00:00
Jakob Stoklund Olesen
87f8d0c4f2 VirtRegRewriter spring cleaning. No functional change. 
Move methods out of line and M-x whitespace-cleanup.
Promote common method arguments to member variables.

llvm-svn: 98207
 2010-03-11 00:11:33 +00:00
Chris Lattner
7cd70b8066 fix PR6533 by updating the br(xor) code to remember the case 
when it looked past a trunc.

llvm-svn: 98203
 2010-03-10 23:46:44 +00:00
Dale Johannesen
29afbd39e4 Cosmetic: lengthen names and improve comments. 
llvm-svn: 98202
 2010-03-10 23:37:24 +00:00
Bill Wendling
df325dee9d Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that 
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.

llvm-svn: 98199
 2010-03-10 22:34:10 +00:00
Dale Johannesen
987770c05d Progress towards shepherding debug info through SelectionDAG. 
No functional effect yet.  This is still evolving and should
not be viewed as final.

llvm-svn: 98195
 2010-03-10 22:13:47 +00:00
Dan Gohman
4c22c7a665 Fix another bitwidth calculation to handle vector types; based on a 
patch by Micah Villmow for PR6572.

llvm-svn: 98188
 2010-03-10 21:04:53 +00:00
Dale Johannesen
5edf11aad3 Fix another place where DEBUG_VALUE affected codegen. 
llvm-svn: 98181
 2010-03-10 19:57:56 +00:00
Dale Johannesen
b68b96c0f6 Fix a bug in DEBUG_VALUE handling Devang ran into. 
I'll get this loop right yet.

llvm-svn: 98155
 2010-03-10 15:06:26 +00:00
Chris Lattner
e34dde1e83 move three lowering hooks from MAI to TLOF and make one of them 
semantic instead of syntactic.  This completes MCization of
darwin/x86[-64]!

llvm-svn: 98145
 2010-03-10 07:20:42 +00:00
Dale Johannesen
c9611b6d0a This survived a bootstrap, so let's try 98104 again. 
llvm-svn: 98137
 2010-03-10 05:45:47 +00:00
Evan Cheng
668ceddeec Enable machine cse pass. 
llvm-svn: 98132
 2010-03-10 03:07:41 +00:00
Chris Lattner
270a61db96 mcize the rest of EH emission, only one more directive missing 
for darwin/x86 to be completely mcized.

llvm-svn: 98130
 2010-03-10 02:48:06 +00:00
Chris Lattner
60b9c3a333 add missing filename! 
llvm-svn: 98125
 2010-03-10 02:29:31 +00:00
Chris Lattner
ed0b8d36e4 set the temporary bit on MCSymbols correctly. 
llvm-svn: 98124
 2010-03-10 02:25:11 +00:00
Evan Cheng
f75338cfcb Add a couple more heuristics to neuter machine cse some more. 
1. Be careful with cse "cheap" expressions. e.g. constant materialization. Only cse them when the common expression is local or in a direct predecessor. We don't want cse of cheap instruction causing other expressions to be spilled.
2. Watch out for the case where the expression doesn't itself uses a virtual register. e.g. lea of frame object. If the common expression itself is used by copies (common for passing addresses to function calls), don't perform the cse. Since these expressions do not use a register, it creates a live range but doesn't close any, we want to be very careful with increasing register pressure.

Note these are heuristics so machine cse doesn't make register allocator unhappy. Once we have proper live range splitting and re-materialization support in place, these should be evaluated again.

Now machine cse is almost always a win on llvm nightly tests on x86 and x86_64.

llvm-svn: 98121
 2010-03-10 02:12:03 +00:00
Chris Lattner
e284f80948 inline away a form of IsPCRelative, eliminating the 
dead IsPCRel argument.

llvm-svn: 98117
 2010-03-10 01:17:49 +00:00
Chris Lattner
cff79125fb add some fixme's for MCizing. EH still has a few things that 
need to be MCized, but the last debug info thing are LEB and
cygwin specific (which the MC api doesn't support yet) and
one specific form of EmitReference which I'll tackle next.

llvm-svn: 98116
 2010-03-10 01:04:13 +00:00
Jim Grosbach
aa8617389c Clear up the last (famous last words) frame index value reuse issues for Thumb1. 
llvm-svn: 98109
 2010-03-10 00:13:42 +00:00
Dale Johannesen
3800f76c1a Speculatively revert 98104; could be what's causing crashes 
llvm-svn: 98108
 2010-03-10 00:11:34 +00:00
Chris Lattner
915a362856 mcize uses of PrintRelDirective and eliminate it. 
llvm-svn: 98107
 2010-03-10 00:09:21 +00:00
Chris Lattner
84561d5f46 inline the bool form of PrintRelDirective away, leaving just the unsigned form. 
llvm-svn: 98106
 2010-03-09 23:54:52 +00:00
Chris Lattner
d5d96f76d0 eliminate EOL, adding all comments with the OutStreamer.AddComment 
method.  With this, comments should end up on the same lines as the .byte
directives (for example) and we now get no output with:

$ llc CodeGen/X86/2009-02-12-DebugInfoVLA.ll -o - -filetype=null -asm-verbose

woot.

llvm-svn: 98105
 2010-03-09 23:52:58 +00:00
Dale Johannesen
02f3bfbecc Ever more complicated DEBUG_VALUE fixes for branch folding. 
llvm-svn: 98104
 2010-03-09 23:52:37 +00:00