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Author SHA1 Message Date
Bill Wendling
368a68ac82 revert r98270. 
llvm-svn: 98281
 2010-03-11 19:50:31 +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
Eric Christopher
017a0a06d8 Lower stpcpy_chk when possible. 
llvm-svn: 98274
 2010-03-11 19:24:34 +00:00
Evan Cheng
20dbd70316 Bad bad bug. x86 force indirect tail call address into eax when it's meant to force it into a call preserved register instead. Change it to ecx for now. 
llvm-svn: 98270
 2010-03-11 18:49:14 +00:00
Richard Osborne
8caa985467 Remove dead code. (S|U)MUL_LO is now lowered to LMUL or MACC(S|U) 
llvm-svn: 98269
 2010-03-11 18:38:59 +00:00
Jeffrey Yasskin
239beb0e85 Avoid leaking CompileUnits in DwarfDebug.cpp. 
llvm-svn: 98268
 2010-03-11 18:29:55 +00:00
Daniel Dunbar
8790f4ce4b MC/Mach-O: Add MCSymbolData::getAddress() utility. 
llvm-svn: 98266
 2010-03-11 18:22:51 +00:00
Eric Christopher
fd61aa2ea3 Fix typo. 
llvm-svn: 98260
 2010-03-11 17:45:38 +00:00
Richard Osborne
0dcde97cbc Add dag combine to simplify lmul(x, 0, a, b) 
llvm-svn: 98258
 2010-03-11 16:26:35 +00:00
Richard Osborne
22c1716d0d Switch XCore over to using inline jump table entries. 
llvm-svn: 98256
 2010-03-11 14:58:56 +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
Ted Kremenek
9f2c113fab Update CMake build. 
llvm-svn: 98250
 2010-03-11 07:51:23 +00:00
Eric Christopher
bbdbe41a97 Have fast-isel understand llvm.objectsize. Update testcase for slightly 
different codegen.

llvm-svn: 98244
 2010-03-11 06:20:22 +00:00
Jeffrey Yasskin
46115632ba Make clang bootstrap happier on OSX 10.5 by reducing the number of headers 
included when using global symbols to ask the linker for the addresses of
various functions.  One of the symbols was actually getting declared by a
header included in DynamicLibrary.cpp, which conflicted with the "extern void*"
declaration in SearchForAddressOfSpecialSymbol().

llvm-svn: 98243
 2010-03-11 06:14:32 +00:00
Daniel Dunbar
ee26fc9e9f MC/Mach-O: Implement "absolutizing" semantics of .set, by evaluating the assembly time value of variables. 
llvm-svn: 98241
 2010-03-11 05:53:37 +00:00
Daniel Dunbar
aefde2abfd MC/Mach-O: Start passing in the basic MCAsmLayout object. 
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.

llvm-svn: 98240
 2010-03-11 05:53:33 +00:00
Eric Christopher
53a9bc6e22 Do some final lowering in CodeGenPrepare of _chk calls similar to 
that in InstCombineCalls.

More call lowering needed.

llvm-svn: 98228
 2010-03-11 02:41:03 +00:00
Daniel Dunbar
285a34c8c8 MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols. 
llvm-svn: 98227
 2010-03-11 02:28:59 +00:00
Daniel Dunbar
fe8914f6b6 Fix (unused) RegisterAsmBackend template, clang++ isn't happy about this. 
llvm-svn: 98226
 2010-03-11 02:28:52 +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
Daniel Dunbar
f7f88fba2d MC: Sketch some TargetAsmBackend hooks we are going to need. 
llvm-svn: 98221
 2010-03-11 01:34:21 +00:00
Daniel Dunbar
10c975db78 MC: Provide the target triple to AsmBackend constructors. 
llvm-svn: 98220
 2010-03-11 01:34:16 +00:00
Eric Christopher
c2a92dadc5 Add strncpy libcall creator. Use it when it should be used. 
llvm-svn: 98219
 2010-03-11 01:25:07 +00:00
Bill Wendling
e0a7f83429 When outputing a non-lazy pointer for a stub, we may need to fill in the value 
for the NLP because the object it's pointing to may be internal to the file.

This seems counter-intuitive, but bear with me. When we place the LSDA into the
TEXT section, the type info pointers need to be indirect and pc-rel. We
accomplish this by using NLPs. However, sometimes the types are local to the
file. GCC gets around this by not using a NLP in this case, but a "regular"
indirection like this:

GCC_except_tbl:
  .long Lfoo-.

__ZTIA:  @ This is local
  ...

Lfoo:
  .long __ZTIA

LLVM prefers NLPs on Darwin. In fact, it's more optimal for load performance to
use them.

llvm-svn: 98218
 2010-03-11 01:18:13 +00:00
Johnny Chen
5b54a7fca1 Added Thumb2 LDRD/STRD pre/post variants for disassembly only. 
Plus fixed the encoding of t2LDRDpci such that P = 1 and W = 0 (offset mode).

llvm-svn: 98217
 2010-03-11 01:13:36 +00:00
Dale Johannesen
0ef6f3119d Make sure HasDebugValue is initialized. This should fix 
the buildbot running valgrind.

llvm-svn: 98216
 2010-03-11 00:52:12 +00:00
Bob Wilson
1ce9157601 Fix ARM buildbot breakage. 
llvm-svn: 98215
 2010-03-11 00:46:22 +00:00
Chris Lattner
d6d11e53ab add support, testcases, and dox for the new GHC calling 
convention.  Patch by David Terei!

llvm-svn: 98212
 2010-03-11 00:22:57 +00:00
Bob Wilson
b7efefe008 Lower small memcpys to load/stores on Thumb2. 
Radar 7686922.

llvm-svn: 98210
 2010-03-11 00:20:49 +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
3a1f8cf234 Work around a bug in the openbsd assembler on i386, 
which doesn't support .quad correctly because it is
"really really old".  PR6528.

Yet another reason the mc assembler should take over ;-)

llvm-svn: 98205
 2010-03-11 00:06:19 +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
Bob Wilson
e49828788b Fix an obvious typo in an assert. 
Patch by Sean Callanan.

llvm-svn: 98200
 2010-03-10 22:38:45 +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
Chris Lattner
d14ff9f87b move PR6576 here. 
llvm-svn: 98194
 2010-03-10 21:42:42 +00:00
Chris Lattner
37594c7a86 add DESTDIR support for TOOLALIAS, for PR6557, patch by 
Matthias Klose!

llvm-svn: 98193
 2010-03-10 21:27:53 +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
Daniel Dunbar
a1827f9853 MC/Mach-O: Use the MCAssembler symbol map instead of reconstructing. 
llvm-svn: 98187
 2010-03-10 20:58:31 +00:00
Daniel Dunbar
fc99f844eb MC: Move the backend section and symbol data maps to MCAssembler. 
llvm-svn: 98186
 2010-03-10 20:58:29 +00:00
Daniel Dunbar
8e45a4269e Remove unneeded declarations. 
llvm-svn: 98185
 2010-03-10 20:58:25 +00:00
Jim Grosbach
c7983b0537 Make sure the LR gets pushed in functions that use vaargs. This fixes 
400.perlbench for the nightly tests.

llvm-svn: 98183
 2010-03-10 20:01:30 +00:00
Jim Grosbach
283a9fe231 comment why we use custom epilogue for t1 functions using vaargs. 
llvm-svn: 98182
 2010-03-10 19:59:47 +00:00
Dale Johannesen
5edf11aad3 Fix another place where DEBUG_VALUE affected codegen. 
llvm-svn: 98181
 2010-03-10 19:57:56 +00:00
Dan Gohman
07eb9cb4c2 Add a DominatorTree argument to isLCSSA so that it doesn't have to 
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.

llvm-svn: 98179
 2010-03-10 19:38:49 +00:00