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Author SHA1 Message Date
Chris Lattner
857ed445a8 remove the GVNPRE pass. It has been subsumed by the GVN pass. 
Ok'd by Owen.

llvm-svn: 83193
 2009-10-01 02:18:36 +00:00
Evan Cheng
dc5ac208bf Update ARM JIT emitter to account for ld/st multiple changes. 
llvm-svn: 83192
 2009-10-01 01:39:21 +00:00
Evan Cheng
4dd7d7156e Change ld/st multiples to explicitly model the writeback to base register. This fixes most of the -ldstopti-before-sched2 regressions. 
llvm-svn: 83191
 2009-10-01 01:33:39 +00:00
Devang Patel
4f1147e386 Add another MDNode into DebugLocTuple. This will be used to keep track of inlined functions. 
llvm-svn: 83190
 2009-10-01 01:15:28 +00:00
Devang Patel
d24ba7a101 If location info is attached with an instruction then keep track of alloca slots used by a variable. This info will be used by AsmPrinter to emit debug info for variables. 
llvm-svn: 83189
 2009-10-01 01:03:26 +00:00
Devang Patel
e097bf49d0 Use MachineInstr as an processDebugLoc() argument. 
This will allow processDebugLoc() to handle scopes for DWARF debug info. 

llvm-svn: 83183
 2009-09-30 23:12:50 +00:00
Devang Patel
044648c2d7 Use MDNode * directly as an RecordSourceLine() argument. 
llvm-svn: 83182
 2009-09-30 22:51:28 +00:00
Devang Patel
ef84ca6011 Remove dead code. 
llvm-svn: 83181
 2009-09-30 22:43:52 +00:00
Devang Patel
cb516787d0 Add isFOO() helpers. Fix getDirectory() and getFilename() for DIScope. 
llvm-svn: 83180
 2009-09-30 22:34:41 +00:00
Bob Wilson
d6896006b1 Use OutStreamer.SwitchSection instead of writing out textual section directives. 
Add a new TargetLoweringObjectFileMachO::getConstTextCoalSection method to
get access to that section.

llvm-svn: 83178
 2009-09-30 22:25:37 +00:00
Bob Wilson
1cf44c8225 Add a new virtual EmitStartOfAsmFile method to the AsmPrinter and use this 
to emit target-specific things at the beginning of the asm output.  This
fixes a problem for PPC, where the text sections are not being kept together
as expected.  The base class doInitialization code calls DW->BeginModule()
which emits a bunch of DWARF section directives.  The PPC doInitialization
code then emits all the TEXT section directives, with the intention that they
will be kept together. But as I understand it, the Darwin assembler treats
the default TEXT section as a special case and moves it to the beginning of
the file, which means that all those DWARF sections are in the middle of
the text.  With this change, the EmitStartOfAsmFile hook is called before
the DWARF section directives are emitted, so that all the PPC text section
directives come out right at the beginning of the file.

llvm-svn: 83176
 2009-09-30 22:06:26 +00:00
Bob Wilson
59eb323058 Fix a comment typo. 
llvm-svn: 83174
 2009-09-30 21:44:42 +00:00
Devang Patel
43ce9e3e75 Check for null MDNode element while printing comment. 
llvm-svn: 83172
 2009-09-30 21:26:51 +00:00
Bob Wilson
44b5a5a58c Fix a comment. 
llvm-svn: 83171
 2009-09-30 21:26:13 +00:00
Bob Wilson
233aa46c87 The AsmPrinter base class contains a DwarfWriter member, so there's no need 
for derived AsmPrinters to add another one.  In some cases, fixing this
removes the need to override the doInitialization method.

llvm-svn: 83170
 2009-09-30 21:24:45 +00:00
Jeffrey Yasskin
2d4f3f6704 Assert that ConstantArrays are created with correctly-typed elements. 
llvm-svn: 83168
 2009-09-30 21:08:08 +00:00
Dan Gohman
2ecc146f0c Fix this code so that it doesn't try to iterate through a std::vector 
while calling changeImmediateDominator, which removes elements from the
vector. This fixes PR5097.

llvm-svn: 83166
 2009-09-30 20:54:16 +00:00
Reid Kleckner
4c0732ea64 Silence comparison always false warning in -Asserts mode. 
llvm-svn: 83164
 2009-09-30 20:43:07 +00:00
Jim Grosbach
b4fdc9252d Add additional assert() to verify no extraneous use of a scavenged register. 
llvm-svn: 83163
 2009-09-30 20:35:36 +00:00
Devang Patel
24270e88cc Print tag name for MDNodes that are used to encode debug info. 
llvm-svn: 83160
 2009-09-30 20:16:54 +00:00
Reid Kleckner
ffe2b97d7a Fix integer overflow in instruction scheduling. This can happen if we have 
basic blocks that are so long that their size overflows a short.

Also assert that overflow does not happen in the future, as requested by Evan.

This fixes PR4401.

llvm-svn: 83159
 2009-09-30 20:15:38 +00:00
Devang Patel
5d5d1f31b7 Silence unused variable warning. 
llvm-svn: 83151
 2009-09-30 17:13:41 +00:00
Jim Grosbach
2c211c7bfe Clarify comment phrasing. 
llvm-svn: 83148
 2009-09-30 15:23:38 +00:00
Evan Cheng
86bd5c3ae1 Add a option which would move ld/st multiple pass before post-alloc scheduling. 
llvm-svn: 83145
 2009-09-30 08:53:01 +00:00
Evan Cheng
bb0561f2dd Add a target hook to add pre- post-regalloc scheduling passes. 
llvm-svn: 83144
 2009-09-30 08:49:50 +00:00
Evan Cheng
a335221976 Forgot this test earlier. 
llvm-svn: 83143
 2009-09-30 08:41:27 +00:00
Chris Lattner
0731e5bc62 add macruby, fix a validation problem. 
llvm-svn: 83142
 2009-09-30 06:27:22 +00:00
Nick Lewycky
a44b8327fb Fix compile error as debug interface changed. 
By the way, this code is buggy. You can't keep a map<MDNode *, something>
because the MDNode may be destroyed and reused for something else.

llvm-svn: 83141
 2009-09-30 04:50:26 +00:00
Jim Grosbach
d885068ad4 replace TRI->isVirtualRegister() with TargetRegisterInfo::isVirtualRegister() 
per customary usage

llvm-svn: 83137
 2009-09-30 01:47:59 +00:00
Jim Grosbach
9655673c95 When checking whether we need to reserve a register for the scavenger, 
the size of the saved frame pointer needs to be taken into account.

llvm-svn: 83136
 2009-09-30 01:43:29 +00:00
Jim Grosbach
2d057f09e8 Add "isBarrier = 1" to return instructions. 
Patch by Sylvere Teissier.

llvm-svn: 83135
 2009-09-30 01:35:11 +00:00
Jim Grosbach
5cc33f7dac fix compiler warning 
llvm-svn: 83132
 2009-09-30 00:37:40 +00:00
David Goodwin
e4de749689 Remove regression that requires post-RA scheduling from a target that does not use that scheduler. 
llvm-svn: 83128
 2009-09-30 00:23:57 +00:00
Bob Wilson
48f9855607 For Darwin, emit all the text section directives together before the dwarf 
section directives.  This causes the assembler to put the text sections at
the beginning of the object file, which helps work around a limitation of the
Darwin ARM relocations.  Radar 7255355.

llvm-svn: 83127
 2009-09-30 00:23:42 +00:00
Devang Patel
0136a7ebec Simplify. 
llvm-svn: 83123
 2009-09-30 00:14:40 +00:00
David Goodwin
a282690f82 Remove -post-RA-schedule flag and add a TargetSubtarget method to enable post-register-allocation scheduling. By default it is off. For ARM, enable/disable with -mattr=+/-postrasched. Enable by default for cortex-a8. 
llvm-svn: 83122
 2009-09-30 00:10:16 +00:00
Douglas Gregor
66fc2ea1c2 Forward-declare ValueSymbolTable so that SymbolTableListTraits.h can be parsed by itself 
llvm-svn: 83121
 2009-09-30 00:08:25 +00:00
Mike Stump
a3bce35a07 Add a way for a frontend to generate more complex dwarf location 
information.  This allows arbitrary code involving DW_OP_plus_uconst
and DW_OP_deref.  The scheme allows for easy extention to include,
any, or all of the DW_OP_ opcodes.  I thought about just exposing all
of them, but, wasn't sure if people wanted the dwarf opcodes exposed
in the api.  Is that a layering violation?

With this scheme, the entire existing block scheme used by llvm-gcc
can be switched over to the new scheme.  I think that would be
cleaner, as then the compiler specific bits are not present in llvm
proper.  Before the old code can be yanked however, similar code in
clang would have to be removed.

Next up, more testing.

llvm-svn: 83120
 2009-09-30 00:08:22 +00:00
Jim Grosbach
278d0d5b3d minor cleanup and add clarifying comment 
llvm-svn: 83117
 2009-09-29 23:17:20 +00:00
Devang Patel
c1e370a29c Lookup handler name only when assertions are enabled. 
llvm-svn: 83114
 2009-09-29 22:05:52 +00:00
Devang Patel
39b5b72d74 Add removeMD(). 
llvm-svn: 83107
 2009-09-29 20:42:25 +00:00
Devang Patel
292bcd8ca1 Only one custom meadata of each kind can be attached with an instruction. 
llvm-svn: 83105
 2009-09-29 20:30:57 +00:00
Jim Grosbach
f759d3c1c5 Additional check for regno==0 
llvm-svn: 83103
 2009-09-29 20:11:10 +00:00
Devang Patel
351585921d Use assertion instead of early exit to catch malformed custom metadata store. 
llvm-svn: 83102
 2009-09-29 20:01:19 +00:00
Devang Patel
5dcd8e1d86 Remove unnecessary cast. 
llvm-svn: 83100
 2009-09-29 19:56:13 +00:00
Devang Patel
e5be8e79df Remove std::string uses from DebugInfo interface. 
llvm-svn: 83083
 2009-09-29 18:40:58 +00:00
Devang Patel
5cad2b8f0f Create empty StringRef is incoming cstring is NULL. 
llvm-svn: 83082
 2009-09-29 18:39:56 +00:00
Jim Grosbach
0e6ac9047c Simplify the tracking of virtual frame index registers. Ranges cannot overlap, 
so a simple "current register" will suffice. Also add some additional
sanity-checking assertions to make sure things are as we expect.

llvm-svn: 83081
 2009-09-29 18:23:15 +00:00
Jim Grosbach
6f6bc51d3b Moving register scavenging to a post pass results in virtual registers in 
the instruction we're scavenging for. The scavenger needs to know to avoid
them when analyzing register usage.

llvm-svn: 83077
 2009-09-29 17:24:37 +00:00
David Goodwin
34aa421e3a Post-RA regressions. 
llvm-svn: 83075
 2009-09-29 17:10:26 +00:00