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Author SHA1 Message Date
Nick Lewycky
f469b071a2 Pacify a noisy compiler, and sink this variable declaration closer to its uses. 
llvm-svn: 115206
 2010-09-30 21:04:13 +00:00
Owen Anderson
5adba2c2ff We do want to allow LoadPRE to perform LICM-like transformations: we already consider PHI nodes to be negligible for 
code size (making this transform code size neutral), and it allows us to hoist values out of loops, which is always
a good thing.

llvm-svn: 115205
 2010-09-30 20:53:04 +00:00
Jakob Stoklund Olesen
603950c4af Try again to disable critical edge splitting in CodeGenPrepare. 
The bug that broke i386 linux has been fixed in r115191.

llvm-svn: 115204
 2010-09-30 20:51:52 +00:00
Eric Christopher
2d33066699 Start of generalized call support for ARM fast isel. 
llvm-svn: 115203
 2010-09-30 20:49:44 +00:00
Talin
ee60bd194c Allow llvm.gcroot to work with non-pointer allocas. 
llvm-svn: 115198
 2010-09-30 20:23:47 +00:00
Rafael Espindola
5aae0d6863 Factor some logic into ShouldRelocOnSymbol. This simplifies the code and 
fixes some cases where we were producing relocations with at symbol that
should use a section instead.

llvm-svn: 115194
 2010-09-30 20:18:35 +00:00
Jim Grosbach
2bf1c488de Nuke a few more unused asm strings 
llvm-svn: 115193
 2010-09-30 19:53:58 +00:00
Jakob Stoklund Olesen
8f4d623f9a When isel is emitting instructions for an x86 target without CMOV, the CFG is 
edited during emission.

If the basic block ends in a switch that gets lowered to a jump table, any
phis at the default edge were getting updated wrong. The jump table data
structure keeps a pointer to the header blocks that wasn't getting updated
after the MBB is split.

This bug was exposed on 32-bit Linux when disabling critical edge splitting in
codegen prepare.

The fix is to uipdate stale MBB pointers whenever a block is split during
emission.

llvm-svn: 115191
 2010-09-30 19:44:31 +00:00
Jim Grosbach
8bf43f57d4 Move getPointerSize() to the base class since it's not dependent on MachO 
vs. ELF

llvm-svn: 115180
 2010-09-30 17:45:51 +00:00
Duncan Sands
f3c4831b1b Flesh out the dragonegg section. 
llvm-svn: 115179
 2010-09-30 17:37:34 +00:00
Chris Lattner
5bf2e8957f more cleanups. 
llvm-svn: 115178
 2010-09-30 17:29:05 +00:00
Chris Lattner
06b22c9040 merge and clean up tests. 
llvm-svn: 115177
 2010-09-30 17:24:05 +00:00
Jim Grosbach
5d93ed90e5 Remove extraneous ';' 
llvm-svn: 115176
 2010-09-30 17:19:17 +00:00
Chris Lattner
3eb4b129ce merge two tests. 
llvm-svn: 115175
 2010-09-30 17:18:22 +00:00
Chris Lattner
4305b3410a rename test 
llvm-svn: 115174
 2010-09-30 17:16:49 +00:00
Kevin Enderby
f3d8ed8368 Did my commit for the last patch for the .loc directory from the wrong place and 
missed a bunch of files.  Here the rest.  Sorry about that.

llvm-svn: 115173
 2010-09-30 17:16:09 +00:00
Chris Lattner
3c83d4c5b2 generalize test. 
llvm-svn: 115172
 2010-09-30 17:15:42 +00:00
Chris Lattner
ba10206990 rename test. 
llvm-svn: 115171
 2010-09-30 17:14:55 +00:00
Chris Lattner
4e40805fb9 merge two tests. 
llvm-svn: 115170
 2010-09-30 17:14:30 +00:00
Chris Lattner
df2f5c0a40 preemptively add the rest of the non-n fpstack instructions. 
llvm-svn: 115168
 2010-09-30 17:11:29 +00:00
Chris Lattner
66e54dbadc merge two tests. 
llvm-svn: 115165
 2010-09-30 17:05:37 +00:00
Chris Lattner
bcc528fb04 fix this to not be completely broken. 
llvm-svn: 115164
 2010-09-30 17:04:59 +00:00
Chris Lattner
79ba84083a update, unxfail, fix bogus encodings. 
llvm-svn: 115163
 2010-09-30 17:03:20 +00:00
Chris Lattner
ae85c49bd0 update and unxfail 
llvm-svn: 115162
 2010-09-30 17:00:53 +00:00
Chris Lattner
cd33e7e984 unxfail this by fixing syntactic differences. 
llvm-svn: 115161
 2010-09-30 16:59:28 +00:00
Jim Grosbach
52b5709c99 The asm strings are never used at all, so just nuke 'em entirely. 
llvm-svn: 115160
 2010-09-30 16:56:53 +00:00
Kevin Enderby
767a9365f0 This is the last major patch to implement support for the .loc directive 
and output the dwarf line number tables.  This contains the code to emit and
encode the dwarf line tables from the previously gathered information in the
MCLineSection objects.  This contains all the details to encode the line and
address deltas into the dwarf line table.

To do this an MCDwarfLineAddrFragment has been added.

Also this moves the interface code out of Mach-O streamer into
MCDwarf so it should be useable by other object file formats.

There is now one call to be made from an MCObjectStreamer
EmitInstruction() method:
   MCLineEntry::Make(this, getCurrentSection());
to create a line entry after each instruction is assembled.

And one call call to be made from an MCObjectStreamer Finish() method:
   MCDwarfFileTable::Emit(this, DwarfLineSection);
when getContext().hasDwarfFiles() is true and is passed a object file specific
MCSection where to emit the dwarf file and the line tables.

This appears to now be correct for 32-bit targets, at least x86.  But the
relocation entries for 64-bit Darwin needs some further work which is next
up to work on.  So for now the 64-bit Mach-O target does not output the
dwarf file and line tables.

llvm-svn: 115157
 2010-09-30 16:52:03 +00:00
Chris Lattner
8e7a4b7b57 implement support for finit, PR8258 
llvm-svn: 115156
 2010-09-30 16:42:53 +00:00
Kevin Enderby
0620ec51f6 Changes EvaluateAsAbsolute() to return the "current value" of the expression 
if we are given a Layout object, even in cases when the value is not fixed.
This will be needed by the final patch for the dwarf .loc support to size a
new MCDwarf fragment needed to build and emit dwarf line number tables.

llvm-svn: 115155
 2010-09-30 16:42:21 +00:00
Chris Lattner
fecf3a7717 add support for fstcw, PR8259 
llvm-svn: 115154
 2010-09-30 16:39:29 +00:00
Kevin Enderby
dd3306fcb5 Adds getPointerSize() to the AsmBackend which will be needed by the final patch 
for the dwarf .loc support to emit dwarf line number tables.

llvm-svn: 115153
 2010-09-30 16:38:07 +00:00
Chris Lattner
2ea322b13d checkpoint notes 
llvm-svn: 115152
 2010-09-30 16:31:33 +00:00
Benjamin Kramer
3f7e313552 Grow BumpPtrAllocator's slab size dynamically if we allocated many slabs. This 
reduces the amount of malloc calls and may reduce memory overhead.

Some numbers:
ASTContext stats, clang -cc1 -disable-free -fsyntax-only Cocoa_h.m
without dynamic growth                          |  with dynamic growth
Number of memory regions: 3158                  |  Number of memory regions: 432
Bytes used: 12333185                            |  Bytes used: 12333185
Bytes allocated: 12935168                       |  Bytes allocated: 12800000
Bytes wasted: 601983 (includes alignment, etc)  |  Bytes wasted: 466815 (includes alignment, etc)

ASTContext stats, clang -cc1 -disable-free -fsyntax-only on clang's ASTReader.cpp
without dynamic growth                          |  with dynamic growth
Number of memory regions: 10987                 |  Number of memory regions: 551
Bytes used: 42910356                            |  Bytes used: 42910356
Bytes allocated: 45002752                       |  Bytes allocated: 44711936
Bytes wasted: 2092396 (includes alignment, etc) |  Bytes wasted: 1801580 (includes alignment, etc)

llvm-svn: 115151
 2010-09-30 16:18:28 +00:00
Jim Grosbach
37fbea8ac9 80 column fix 
llvm-svn: 115149
 2010-09-30 15:25:22 +00:00
Jason W Kim
b181166ffc Fix two tiny issues (ARM does not need COFF) and comment sanity. 
llvm-svn: 115147
 2010-09-30 14:58:19 +00:00
Benjamin Kramer
d1710d7fb3 Tighten up prototype verification of strchr and strrchr to avoid a crash in the very unlikely case that someone passes an integer > i64 to strchr. 
llvm-svn: 115144
 2010-09-30 11:21:59 +00:00
Chandler Carruth
85a55025d8 Silence a GCC warning about not handling all flags in this switch, we 
specifically assert on unexpected flags.

llvm-svn: 115143
 2010-09-30 10:59:51 +00:00
Jan Wen Voung
7df9bf0092 Move logic of determining ELF entsize from the .s printer to initialization 
time. That way, the EntrySize field is initialized for other code paths, 
namely, the .ll -> .o code path.

llvm-svn: 115141
 2010-09-30 05:59:22 +00:00
Rafael Espindola
b371d39f74 Add another test that now passes. 
llvm-svn: 115137
 2010-09-30 04:22:07 +00:00
Jim Grosbach
4ad95fa930 trailing whitespace 
llvm-svn: 115136
 2010-09-30 03:21:00 +00:00
Jim Grosbach
5b0ae02149 Remove misplaced ';'. Make buildbots happy, hopefully. 
llvm-svn: 115135
 2010-09-30 03:20:34 +00:00
Rafael Espindola
480ee577ad Correctly produce R_X86_64_32 or R_X86_64_32S. 
With this patch in

movq    $foo, foo(%rip)
foo:
.long   foo

We produce a R_X86_64_32S for the first relocation and R_X86_64_32 for the
second one.

llvm-svn: 115134
 2010-09-30 03:11:42 +00:00
Jason W Kim
7822e6aab5 Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile() 
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.

llvm-svn: 115133
 2010-09-30 02:45:56 +00:00
Jan Wen Voung
0d25ddb1de Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when 
constructing a section. Test for a few cases also included.

llvm-svn: 115132
 2010-09-30 02:41:46 +00:00
Rafael Espindola
3e2630deca Make it possible for the MCObjectWriter to decide if a given fixup is fully 
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.

Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.

llvm-svn: 115131
 2010-09-30 02:22:20 +00:00
Jim Grosbach
ad67153eb3 Go ahead and jump! 
Now that the MC lowering handles the expansion of the pseudos, kill the horrible
blobs of text.

llvm-svn: 115130
 2010-09-30 02:18:06 +00:00
Jason W Kim
6d7784e5f5 I added a new file ARMAsmBackend which stubs out in similar ways to 
the eqv X86 class.
For now, I split the ELFARMAsmBackend from the DarwinARMAsmBackend
(also mimicking X86)

Tested against -r115126

llvm-svn: 115129
 2010-09-30 02:17:26 +00:00
Jim Grosbach
3a7ca3301b Now that the pseudos that needed this are all custom lowered, we can go back 
to an empty PrintSpecial()

llvm-svn: 115128
 2010-09-30 02:02:22 +00:00
Jim Grosbach
efad965653 Nuke it from orbit. It's the only way to be sure. 
(Kill the dead non-MC asm printer for the ARM target.)

llvm-svn: 115127
 2010-09-30 01:57:53 +00:00
Jim Grosbach
046ae5dbac Let a target specify whether it wants an assembly printer to be the MC version 
or not. TableGen needs to generate the printInstruction() function as taking
an MCInstr* or a MachineInstr*, depending. Default to the old non-MC
version so that everything not yet using MC continues to just work without
fidding.

llvm-svn: 115126
 2010-09-30 01:29:54 +00:00