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Author SHA1 Message Date
Daniel Dunbar
54df3cead6 MC/Mach-O: Resolve a FIXME; these relocation types are no longer semanticaly different. 
llvm-svn: 98120
 2010-03-10 02:10:29 +00:00
Dan Gohman
107b6faef5 Clarify the documentation for MachineFunctionPasses. 
llvm-svn: 98119
 2010-03-10 01:29:39 +00:00
Chris Lattner
554f323da8 eliminate MCContext::CreateSymbol and CreateTemporarySymbol. 
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.

llvm-svn: 98118
 2010-03-10 01:29:27 +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
Daniel Dunbar
14b4e621b0 MC/Mach-O: Use the SECTDIFF relocation type for (A - B + constant) where A is external. 
- I'm not sure why, but this is what 'as' does.

llvm-svn: 98115
 2010-03-10 00:58:25 +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
Dan Gohman
a722142044 Avoid analyzing instructions in blocks not reachable from the entry block. 
They are lots of trouble, and they don't matter. This fixes PR6559.

llvm-svn: 98103
 2010-03-09 23:46:50 +00:00
Chris Lattner
58829fcfe9 eliminate a bunch of \n's that are being printed to O. Next up is to kill 
off "EOL".

llvm-svn: 98102
 2010-03-09 23:38:23 +00:00
Chris Lattner
2ede66313d convert the non-"ispcrel" case of EmitReference to MC, 
significant debug info testcases are now all going through
MCStreamer, though they print a lot of extraneous newlines to "O".

llvm-svn: 98101
 2010-03-09 23:19:15 +00:00
Chris Lattner
13cbdb1549 make the NullStreamer set the section on a label when emitted so that isDefined() works. 
llvm-svn: 98100
 2010-03-09 23:12:18 +00:00
Jakob Stoklund Olesen
189a55cc16 Try to keep the cached inliner costs around for a bit longer for big functions. 
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

This is a more conservative version of r98089 that doesn't break the clang
test CodeGenCXX/temp-order.cpp. That test relies on rather extreme inlining
for constant folding.

llvm-svn: 98099
 2010-03-09 23:02:17 +00:00
Daniel Dunbar
0bc3059b94 MC/X86: Rename alternate spellings of ADD{8,16,32} and mark as "code gen only" so they don't get selected by the asm matcher. 
llvm-svn: 98098
 2010-03-09 22:50:46 +00:00
Daniel Dunbar
d92e9bc7c1 MC/X86: Rename alternate spellings of CMP{8,16,32} and mark as "code gen only" so they don't get selected by the asm matcher. 
llvm-svn: 98097
 2010-03-09 22:50:40 +00:00
Chandler Carruth
97de5f241b Continue propagating the GoogleTest flags until we can update our version to 
eliminate this problem. This will hopefully let us make progress on Linux
bootstrapping.

llvm-svn: 98095
 2010-03-09 22:45:10 +00:00
Jakob Stoklund Olesen
24bdfeee51 Revert r98089, it was breaking a clang test. 
llvm-svn: 98094
 2010-03-09 22:43:37 +00:00
Jakob Stoklund Olesen
0e8f00292c Try to keep the cached inliner costs around for a bit longer for big functions. 
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

llvm-svn: 98089
 2010-03-09 22:17:11 +00:00
Jakob Stoklund Olesen
aade5b423a Permit inlining into huge functions. This heuristic is ancient, and inlining 
can sometimes help reduce function size.

llvm-svn: 98088
 2010-03-09 22:17:06 +00:00
Jim Grosbach
f328c5334f Change the Value argument to eliminateFrameIndex to a type-tagged value. This 
is preparatory to having PEI's scavenged frame index value reuse logic
properly distinguish types of frame values (e.g., whether the value is
stack-pointer relative or frame-pointer relative).

No functionality change.

llvm-svn: 98086
 2010-03-09 21:45:49 +00:00
Johnny Chen
7cca4927aa MSR (Move to Special Register from ARM core register) requires a mask to specify 
what fields of the CPSR or SPSR are affected.

llvm-svn: 98085
 2010-03-09 21:39:34 +00:00
Daniel Dunbar
f33a8c5ab6 MC/Mach-O: For PCrel relocations, we need to compensate for the PCrel adjustment when determining if we need a scattered relocation. 
llvm-svn: 98082
 2010-03-09 21:27:58 +00:00
Daniel Dunbar
94ed4ba5e0 MC/Mach-O: Also set the PCrel bit in the second half of paired relocation entries. 
llvm-svn: 98081
 2010-03-09 21:27:47 +00:00
Daniel Dunbar
90e934ff65 MC/Mach-O: Don't generate relocations for PCrel fixups to local labels. 
llvm-svn: 98080
 2010-03-09 21:27:30 +00:00
Dale Johannesen
4b8f3692f4 The address of an indirect call must be in R12 on Darwin. 
Make it so.  (This patch is in LowerCall_Darwin, which seems
to be used by SVR4 code as well; since that doesn't belong here,
I haven't worried about this case.)

llvm-svn: 98077
 2010-03-09 20:15:42 +00:00
Chandler Carruth
56cc9d3c6a Consolidate GoogleTest make options and duplicate them to its own makefile. 
llvm-svn: 98074
 2010-03-09 19:24:49 +00:00
Jim Grosbach
195c494922 scavenged frame index value re-use gets confused when more than one base 
register is involved for thumb1. Work around this for the moment by only
re-using SP-relative offsets. This is temporary 'til the code can distinguish
multiple base registers.

llvm-svn: 98071
 2010-03-09 19:07:28 +00:00
Bill Wendling
c9cfc16363 The ARM EH experiment worked! 
Place the LSDA into the TEXT section for ARM platforms. This involves making the
encoding indirect, pcrel, and sdata4 instead of an absolute pointer. The
references to the type infos are then non-lazy pointers. Revision 98019 changed
the encoding of non-lazy pointers to add the symbol to the non-lazy pointer
definition if it's a local symbol (otherwise, it's external and set to '0' so
that the loader can adjust it to the real value). This paved the way for this
change to work on ARM.

llvm-svn: 98068
 2010-03-09 18:31:07 +00:00
Richard Osborne
4077517135 In cases where the carry / borrow unused converted ladd / lsub 
to an add or a sub.

llvm-svn: 98059
 2010-03-09 16:34:25 +00:00
Richard Osborne
e33e24e6cb Canonicalize ladd constant to RHS. 
llvm-svn: 98058
 2010-03-09 16:13:57 +00:00
Richard Osborne
173efed224 Add DAG combine for ladd / lsub. 
llvm-svn: 98057
 2010-03-09 16:07:47 +00:00
Duncan Sands
26e65e7ee8 Attempt to fix random build failures seen when doing highly 
parallel builds: the gold plugin fails to link because the lto
library is in the middle of being written out by the linker.

llvm-svn: 98054
 2010-03-09 09:03:21 +00:00
Evan Cheng
625a7248d6 Allow more cross-rc coalescing. 
llvm-svn: 98048
 2010-03-09 06:38:17 +00:00
Chris Lattner
d51f1bdc58 reapply r98035: 
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98047
 2010-03-09 04:54:43 +00:00
Chris Lattner
43b812b6a8 add some extra checks. I'm not sure why, but this does unbreak a 
failure remaining on mainline.

llvm-svn: 98046
 2010-03-09 04:48:35 +00:00
Evan Cheng
1b43094229 Revert accidental commit. 
llvm-svn: 98045
 2010-03-09 04:04:38 +00:00
Jakob Stoklund Olesen
cc6b4fdf11 Don't do illegal cross-class coalescing. 
llvm-svn: 98044
 2010-03-09 03:56:06 +00:00
Evan Cheng
8277a90f75 - Make the machine cse dumb coalescer (as opposed to the more awesome simple 
coalescer) handle sub-register classes.
- Add heuristics to avoid non-profitable cse. Given the current lack of live
  range splitting, avoid cse when an expression has PHI use and the would be
  new use is in a BB where the expression wasn't already being used.

llvm-svn: 98043
 2010-03-09 03:21:12 +00:00
Dan Gohman
18aa7d328e Don't try to fold V_SET0 and V_SETALLONES to loads in medium and 
large code models.

llvm-svn: 98042
 2010-03-09 03:01:40 +00:00
Bill Wendling
344fec6285 This is part of an LLC-beta test used to test <rdar://problem/6804645>. Please 
bear with the awful code. It won't last in its current state beyond tonight.

llvm-svn: 98040
 2010-03-09 02:46:12 +00:00
Eric Christopher
8875eba06a Speculatively revert r98035. It appears to have caused a set of buildbot 
failures.

llvm-svn: 98039
 2010-03-09 02:36:31 +00:00
Dan Gohman
0d69c61fec Attempt to make this debug output meaningful, both in the case of 
multibyte opcodes and in the case of multiple scopes.

llvm-svn: 98036
 2010-03-09 02:15:05 +00:00
Chris Lattner
c4a74bf48b Now that setStartLabel takes an MCSymbol, we can de-ID'ize 
beginScope and RecordSourceLine.

llvm-svn: 98035
 2010-03-09 02:08:02 +00:00
Chris Lattner
f7ad2622cc change DbgScope to keep track of the start/end label as MCSymbol* 
now that the dependence on ID is removed from MMI.

llvm-svn: 98034
 2010-03-09 01:58:53 +00:00
Dan Gohman
c421549beb Make isLCSSA ignore uses in blocks not reachable from the entry block, 
as LCSSA no longer transforms such uses.

llvm-svn: 98033
 2010-03-09 01:53:33 +00:00
Chris Lattner
a72a32a06b remove a useless optimization: now that label replacement never 
happens, the start/end of a scope can never be the same.

llvm-svn: 98032
 2010-03-09 01:52:43 +00:00