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42098 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
7eb589d3f9 Try again to disable critical edge splitting in CodeGenPrepare. 
The bug that broke i386 linux has been fixed in r115191.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 20:51:52 +00:00
Eric Christopher
f9764fa14f Start of generalized call support for ARM fast isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 20:49:44 +00:00
Talin
c87cfb6a81 Allow llvm.gcroot to work with non-pointer allocas. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115198 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 20:23:47 +00:00
Rafael Espindola
7eae36b38b 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115194 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 20:18:35 +00:00
Jim Grosbach
a3fbadfcd8 Nuke a few more unused asm strings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115193 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 19:53:58 +00:00
Jakob Stoklund Olesen
2622f4622c 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 19:44:31 +00:00
Jim Grosbach
3787a40e03 Move getPointerSize() to the base class since it's not dependent on MachO 
vs. ELF

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 17:45:51 +00:00
Jim Grosbach
af2a8b21f1 Remove extraneous ';' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115176 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 17:19:17 +00:00
Chris Lattner
905f2e0669 preemptively add the rest of the non-n fpstack instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115168 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 17:11:29 +00:00
Jim Grosbach
71d933a49e The asm strings are never used at all, so just nuke 'em entirely. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:56:53 +00:00
Kevin Enderby
c095793b4a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:52:03 +00:00
Chris Lattner
9ee4aed3b6 implement support for finit, PR8258 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:42:53 +00:00
Kevin Enderby
b5a3ec17a4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:42:21 +00:00
Chris Lattner
0bb83a84d4 add support for fstcw, PR8259 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:39:29 +00:00
Kevin Enderby
8ebf66236e Adds getPointerSize() to the AsmBackend which will be needed by the final patch 
for the dwarf .loc support to emit dwarf line number tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:38:07 +00:00
Benjamin Kramer
82d96cccbc 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)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 16:18:28 +00:00
Jim Grosbach
2f24c4ece0 80 column fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 15:25:22 +00:00
Jason W Kim
a4c27248b5 Fix two tiny issues (ARM does not need COFF) and comment sanity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 14:58:19 +00:00
Benjamin Kramer
4c75679b1c 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 11:21:59 +00:00
Chandler Carruth
5c0d472b6e Silence a GCC warning about not handling all flags in this switch, we 
specifically assert on unexpected flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 10:59:51 +00:00
Jan Wen Voung
186e7a0fb1 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 05:59:22 +00:00
Jim Grosbach
f73fd7278f trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115136 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 03:21:00 +00:00
Jim Grosbach
87dc3aa2d8 Remove misplaced ';'. Make buildbots happy, hopefully. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115135 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 03:20:34 +00:00
Rafael Espindola
a8c02c3bdd 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 03:11:42 +00:00
Jason W Kim
afd1cc2578 Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile() 
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:45:56 +00:00
Jan Wen Voung
12ad94e03c Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when 
constructing a section. Test for a few cases also included.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:41:46 +00:00
Rafael Espindola
7070387f08 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:22:20 +00:00
Jim Grosbach
7ebc863c15 Go ahead and jump! 
Now that the MC lowering handles the expansion of the pseudos, kill the horrible
blobs of text.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:18:06 +00:00
Jason W Kim
d4d4f4f488 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115129 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:17:26 +00:00
Jim Grosbach
a4e97de71d Now that the pseudos that needed this are all custom lowered, we can go back 
to an empty PrintSpecial()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115128 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 02:02:22 +00:00
Jim Grosbach
2317e40539 Nuke it from orbit. It's the only way to be sure. 
(Kill the dead non-MC asm printer for the ARM target.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115127 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 01:57:53 +00:00
Jan Wen Voung
a854a4bbc8 Test commit - Deleted some whitespace at the end of a line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 01:09:20 +00:00
Evan Cheng
0e55fd61ae ARM instruction itinerary fixes: 
1. Cortex-a9 8-bit and 16-bit loads / stores AGU cycles are 1 cycle longer than 32-bit ones.
2. Cortex-a9 is out-of-order so model all read cycles as cycle 1.
3. Lots of other random fixes for A8 and A9.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 01:08:25 +00:00
Benjamin Kramer
9510a2538b Add constant folding for strspn and strcspn to SimplifyLibCalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115116 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 00:58:35 +00:00
Francois Pichet
3eddd98be3 Revert r114320(move file = copy + delete on Win32). r115040 is a better solution for the Win32 ACCESS_DENIED lit error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115114 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-30 00:44:58 +00:00
Benjamin Kramer
05f585e28b Add strpbrk folding to SimplifyLibCalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:52:12 +00:00
Nick Lewycky
28815c4b64 Silence compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:32:20 +00:00
Eric Christopher
a9a7a1a9a5 Refactor arm fast isel libcall handling so that pieces can be used 
for generic call handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:11:09 +00:00
Devang Patel
3cf763dc7a Let FE mark a variable as artificial variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:07:21 +00:00
Eric Christopher
e487b017e9 Noticed by inspection when looking for other cmov bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 23:00:29 +00:00
Evan Cheng
3881cb7a5d Model Cortex-a9 load to SUB, RSB, ADD, ADC, SBC, RSC, CMN, MVN, or CMP 
pipeline forwarding path.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115098 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 22:42:35 +00:00
Benjamin Kramer
6406d004c9 Silence msvc warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115097 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 22:38:50 +00:00
Benjamin Kramer
e260990fa1 Simplify the loop in StrChrOptimizer. FileCheckize test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 22:29:12 +00:00
Eric Christopher
8cf6c60710 Add a convenience variable so I'm not chasing all over looking for 
a context.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 22:24:45 +00:00
Benjamin Kramer
06f25cfb33 Teach SimplifyLibCalls how to optimize strrchr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 21:50:51 +00:00
Devang Patel
1a30123b60 Add support to let FE encode method access specifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115089 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 21:44:16 +00:00
Devang Patel
9dd2b47d44 Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial. 
This is a backword compatible change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115084 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 21:04:46 +00:00
Owen Anderson
b0725316cd UnreachableBlockElim could incorrectly return false when it had not modified the CFG, but HAD modified some PHI nodes. Fixes PR8174. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115083 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 20:57:19 +00:00
Owen Anderson
36c4debc94 Fix PR8247: JumpThreading can cause a block to become unreachable while still having predecessor, if it is part of a self-loop. 
Because of this, we cannot use the Simplify* APIs, as they can assert-fail on unreachable code.  Since it's not easy to determine
if a given threading will cause a block to become unreachable, simply defer simplifying simplification to later InstCombine and/or
DCE passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 20:34:41 +00:00
Benjamin Kramer
f513ab8b77 Remove PointerTracking from cmakelists … 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 19:39:50 +00:00
Devang Patel
2a3616012c Assign DW_ACCESS_public accessibility attribute to members by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 19:08:08 +00:00
Jim Grosbach
828916203a Add specializations of addrmode2 that allow differentiating those forms 
which require the use of the shifter-operand. This will be used to split
the ldr/str instructions such that those versions needing the shifter operand
can get a different scheduling itenerary, as in some cases, the use of the
shifter can cause different scheduling than the simpler forms.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 19:03:54 +00:00
Nick Lewycky
8892b033e4 Add parens to fix GCC warning: 
lib/Target/X86/X86MCCodeEmitter.cpp: 190: error: suggest parentheses around '&&' within '||'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 18:56:57 +00:00
Chris Lattner
3c99c769eb remove PointerTracking from mainline, Edwin is going to move it out to ClamAV 
for LLVM 2.9


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 18:43:27 +00:00
Chris Lattner
a25f933396 implement rdar://8491845 - Gas supports commuted forms of non-commutable instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115061 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 18:39:16 +00:00
Owen Anderson
69daca59ff Revert r114919, which caused some serious regressions on ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 18:05:19 +00:00
Bob Wilson
7122ba7efb Increase ARM APCS preferred alignment for i64 and f64 from 32 bits to 64 bits. 
LDM/STM instructions can run one cycle faster on some ARM processors if the
memory address is 64-bit aligned.  Radar 8489376.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115047 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 17:54:10 +00:00
Jim Grosbach
be91232900 Add braces for legibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 17:32:29 +00:00
Jim Grosbach
b454cdaebc One Printer to rule them all, One Printer to find them, 
One Printer to lower them all and in the back end bind them.


(Remove option to use the old non-MC asm printer.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 15:23:40 +00:00
Rafael Espindola
9e3922e949 Move "local commons" to the end of .bss to match the gnu as behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 14:52:01 +00:00
Gabor Greif
05642a3eba improve heuristics to find the 'and' corresponding to 'tst' to also catch opportunities on thumb2 
added some doxygen on the way

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115033 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 10:12:08 +00:00
Chris Lattner
6f42027263 fix rdar://8490728 - llvm-mc rejects gpr64 form of 'movmskpd' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115029 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 05:05:03 +00:00
Chris Lattner
f3654db458 add assembler support for the cvtsd2sil/cvtsd2siq mnemonics, rdar://8456382 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 04:55:40 +00:00
Chris Lattner
78a194693b make the x86 mccode emitter emit the 0x67 and 0x66 prefix bytes in the same 
order as cctools for diffability.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115022 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 03:43:43 +00:00
Chris Lattner
8a5072903e implement support for 32-bit address operands in 64-bit mode, which 
are defined to emit the 0x67 prefix byte.  rdar://8482675


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 03:33:25 +00:00
Michael J. Spencer
81100d0608 MC-COFF: Fix symbol storage class for globals 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115020 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 03:13:41 +00:00
Chris Lattner
b2ef4c1235 add basic avx support to the disassembler, also teach it about ssmem/sdmem 
operands.

With this done, we can remove the _Int suffixes from the round instructions
without the disassembler blowing up.  This allows the assembler to support
them, implementing rdar://8456376 - llvm-mc rejects 'roundss'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115019 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 02:57:56 +00:00
Chris Lattner
bf6018ac5a add asmparser support for cvttpd2dq by removing some Int_ prefixes. 
Clean up cvttps2dq by removing some redundant implementations of the
same instruction.  rdar://8456382


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115018 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 02:36:32 +00:00
Chris Lattner
0c04e4f58f implement rdar://8456382 - cvtsd2si support, by removing some Int_ prefixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115017 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 02:24:57 +00:00
Chris Lattner
7c51a3172c implement rdar://8456378 and PR7557 - support for the fstsw, 
an instruction that requires a WHOLE NEW wonderful kind of alias.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 01:50:45 +00:00
Chris Lattner
7036f8be4d change the protocol TargetAsmPArser::MatchInstruction method to take an 
MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115014 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 01:42:58 +00:00
Eric Christopher
229207aa2e Rework comparison handling to set a register on true/false. This avoids 
problems with phi-nodes in blocks that have hard and not virtual registers.

Accordingly update branch handling to compensate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 01:14:47 +00:00
Eric Christopher
f8476e6742 Remove unnecessary set ahead of time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 00:50:57 +00:00
Evan Cheng
5d42c567c9 Separate itinerary classes for mvn from mov; for tst / teq from cmp / cmn. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115010 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 00:49:25 +00:00
Eric Christopher
98de5b4603 Remove assert, add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 00:49:09 +00:00
Evan Cheng
7e1bf305cf Assign bitwise binary instructions different itinerary classes from ALU instructions such as add / sub. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-29 00:27:46 +00:00
Evan Cheng
63d66eed16 Add support to model pipeline bypass / forwarding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115005 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 23:50:49 +00:00
Bill Wendling
2ff6e1e62c Revert r114997. It was causing a failure on darwin10-selfhost. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115002 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 23:11:55 +00:00
Eric Christopher
744c7c8e1b 32-bit constant ints only for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115001 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 22:47:54 +00:00
Oscar Fuentes
3609eb0de2 Removed a bunch of unnecessary target_link_libraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114999 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 22:39:14 +00:00
Bill Wendling
4edab1a9e8 Fix a FIXME. _foo.eh symbols are currently always exported so that the linker 
knows about them. This is not necessary on 10.6 and later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 22:36:56 +00:00
Dan Gohman
f53458f693 When an MDNode changes to become identical to another MDNode, 
delete the MDNode that changed, rather than the other MDNode.
This is less work, because it doesn't require the changed node
to be re-inserted into the uniquing map and it doesn't require
the is-function-local flag to be recomputed. Also, it avoids
trouble when the existing node is part of a complicated
data structure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114996 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 22:07:19 +00:00
Owen Anderson
654d5440a4 Add a subtarget hook for reporting the misprediction penalty. Use this to provide more precise 
cost modeling for if-conversion.  Now if only we had a way to estimate the misprediction probability.

Adjsut CodeGen/ARM/ifcvt10.ll.  The pipeline on Cortex-A8 is long enough that it is still profitable
to predicate an ldm, but the shorter pipeline on Cortex-A9 makes it unprofitable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 21:57:50 +00:00
Eric Christopher
fd60980eb2 Integer materialization needed the same thinko change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 21:55:34 +00:00
Nick Lewycky
a6136b7156 Resolve this GCC warning: 
ARMTargetMachine.cpp:53: error: control reaches end of non-void function


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114992 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 21:40:26 +00:00
Anton Korobeynikov
4f922f2cca User proper libcall names & condcodes while compiling for ARM EABI. 
Patch by Evzen Muller!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 21:39:26 +00:00
Dan Gohman
f375ebeed6 Scope a varible inside an if statement, to make it clear that 
it's not used afterwards.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 21:02:55 +00:00
Owen Anderson
7571ee7885 Give the if-converter access to MachineLoopInfo, and use it to generate plausible branch prediction 
estimates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 20:42:15 +00:00
Bill Wendling
b0db4d0ee7 Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114974 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 18:54:43 +00:00
Owen Anderson
b20b85168c Part one of switching to using a more sane heuristic for determining if-conversion profitability. 
Rather than having arbitrary cutoffs, actually try to cost model the conversion.

For now, the constants are tuned to more or less match our existing behavior, but these will be
changed to reflect realistic values as this work proceeds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 18:32:13 +00:00
Nick Lewycky
f2d7b7c879 Make ConstantRange::makeICmpRegion handle all the edge cases properly. This 
also fixes PR8250.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114972 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 18:18:36 +00:00
Devang Patel
1a7ca0354a Provide an interface to let FEs anchor debug info for types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 18:08:20 +00:00
Jim Grosbach
2d0f53bd63 Factor out dbg_value comment printing and teach MC asm printing to use it. 
This should make the arm-linux self-host buildbot happy again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 17:05:56 +00:00
Rafael Espindola
53725bc57a On elf, undefined symbols can start with .L. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 16:19:11 +00:00
Oscar Fuentes
c577c271b1 Use the canonical library name for library PIC16Passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 14:24:47 +00:00
Oscar Fuentes
4dbb2dbf76 Added library LLVMPIC16passes to CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114952 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 14:02:45 +00:00
Oscar Fuentes
38e1390c29 Add ARM Disassembler to the CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 11:48:19 +00:00
Che-Liang Chiou
acf1d482bf Remove trailing spaces of MipsMachineFunction.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114948 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 10:06:53 +00:00
Che-Liang Chiou
36919ac8a5 Remove trailing spaces of MipsTargetObjectFile.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114947 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 09:55:24 +00:00
Eric Christopher
a99c3e9acd 80-col fixups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 04:18:29 +00:00
Bob Wilson
02aba73a9e Add a command line option "-arm-strict-align" to disallow unaligned memory 
accesses for ARM targets that would otherwise allow it.  Radar 8465431.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 04:09:35 +00:00
Eric Christopher
7ed8ec94d9 Rework builtin handling and call setup. The builtin handling 
now takes a libcall operand, sets up the arguments correctly and
handles stack adjustments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114934 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 01:21:42 +00:00
Eric Christopher
5371cabfc2 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114931 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 00:35:33 +00:00
Eric Christopher
f5732c4ee5 Fix fp constant loads to have a destination register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-28 00:35:09 +00:00
Devang Patel
ee70fa77b4 Remove dead argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 23:15:27 +00:00
Owen Anderson
8d9e92ce2d Weight loop unrolling counts by nesting depth. Unrolling deeply nested loops tends to cause high 
register pressure and thus excess spills, which we don't currently recover from well.  This should
be re-evaluated in the future if our ability to generate good spills/splits improves.

Partial fix for <rdar://problem/7635585>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 22:58:54 +00:00
Jim Grosbach
385cc5eede Enable the MC-ized ARM asm printer. Passing all local tests, so it's time to 
enable it for real. Leaving the CL option in place to it's easy to disable it
again if (when) testers find something I've missed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 22:28:11 +00:00
Rafael Espindola
c3c413f631 Write relocations in the end of the file. This matches what gas does and 
makes files easier to diff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114898 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 22:04:54 +00:00
Jim Grosbach
5acb3de8b7 ARM-mode eh.sjlj.longjmp MC lowering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114896 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:47:04 +00:00
Rafael Espindola
0453dd9ca0 Make sure .text doesn't produce extra alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:40:27 +00:00
Jakob Stoklund Olesen
1f386c4ce1 Don't try to constant fold libm functions with non-finite arguments. 
Usually we wouldn't do this anyway because llvm_fenv_testexcept would return an
exception, but we have seen some cases where neither errno nor fenv detect an
exception on arm-linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:29:20 +00:00
Jim Grosbach
376ce97bac Enable the MC-ized ARM asm printer. Passing all local tests, so it's time to 
enable it for real. Leaving the CL option in place to it's easy to disable it
again if (when) testers find something I've missed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114892 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:28:44 +00:00
Rafael Espindola
2c6ec31df6 Factor symbol value computation into a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114891 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:23:02 +00:00
Michael J. Spencer
9cf23a9ab4 MC-COFF: Fix signed/unsigned comparison. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114888 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 21:17:39 +00:00
Daniel Dunbar
3b9569e70d Hard to imagine there are still people using inferior compilers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114862 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 20:12:58 +00:00
Daniel Dunbar
4f2afe3d39 MC/AsmParser: Handle exponents in floating point literals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114861 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 20:12:52 +00:00
Jakob Stoklund Olesen
08342f2d11 Revert "Disable codegen prepare critical edge splitting. Machine instruction passes now" 
This reverts revision 114633. It was breaking llvm-gcc-i386-linux-selfhost.

It seems there is a downstream bug that is exposed by
-cgp-critical-edge-splitting=0. When that bug is fixed, this patch can go back
in.

Note that the changes to tailcallfp2.ll are not reverted. They were good are
required.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 18:43:48 +00:00
Rafael Espindola
fd9493d74e Odd additional stub framework for the ARM MC ELF emission. 
llc now recognizes the "intent" to support MC/obj emission for ARM, but
given that they are all stubs, it asserts on --filetype=obj --march=arm

Patch by Jason Kim.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114856 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 18:31:37 +00:00
Rafael Espindola
b814110612 Remove unused argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 18:13:03 +00:00
Benjamin Kramer
d1e1703c39 Push twines deeper into SourceMgr's error handling methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114847 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 17:42:11 +00:00
Dale Johannesen
a8bd1ff8c5 MMX parameters aren't handled here yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 17:29:47 +00:00
Dale Johannesen
61b20efd9a Don't try to make a vector of x86mmx; this won't work, 
and asserts.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 17:29:14 +00:00
Dan Gohman
51138b3070 Delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114841 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 16:58:21 +00:00
Dan Gohman
477268cd24 Delete an unused declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114839 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 16:54:49 +00:00
Dan Gohman
48fd5a79e0 Add support for viewing graphviz graphs with xdot.py. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114832 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 16:28:34 +00:00
Dan Gohman
e0214d5b19 Make this code 65-bit clean. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114828 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 15:15:44 +00:00
Michael J. Spencer
a72d87899b MC-COFF: Drop empty sections, and label symbols. Convert relocations 
targeted at symbols into relocations relative to the containing section.

Patch by Nathan Jeffords!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 08:58:26 +00:00
Chris Lattner
2956462742 yet more aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 07:24:57 +00:00
Chris Lattner
b1162fc05e add a couple more aliases, rdar://8456378 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114821 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 07:21:41 +00:00
Chris Lattner
df967d6137 fix rdar://8470918 - llvm-mc can't assemble smovl 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114819 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 07:11:53 +00:00
Chris Lattner
cb296ec0b6 Fix rdar://8468087 - llvm-mc commutes fmul (and friend) operands. 
My previous fix for rdar://8456371 should only apply to fmulp/faddp,
not to fmul/fadd.  Instruction set orthogonality is overrated or 
something.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 07:08:21 +00:00
Chris Lattner
8048ebe91d the latest assembler that runs on powerpc 10.4 machines doesn't 
support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114817 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 06:44:54 +00:00
Chris Lattner
80945784f9 improve indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 06:34:01 +00:00
Eric Christopher
1127c720ed Insert missing coherency in comment. Add a quick check for hardware 
divide support also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114813 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 06:08:12 +00:00
Eric Christopher
43b62beb4c Mass rename for Jim. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114812 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 06:02:23 +00:00
Eric Christopher
722d315ac9 This code should never fire on non-darwin subtargets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114811 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 06:01:51 +00:00
Chris Lattner
fd8fddd830 implement support for 'clr' alias. This is part of rdar://8416805, 
but balrog was wanting it on irc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-27 04:23:03 +00:00
Lang Hames
cec2945f30 Fixed some tests to avoid LiveIntervals::getInstructionFromIndex(..) overhead where possible. Thanks to Jakob for the suggestions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-26 03:37:09 +00:00
Jakob Stoklund Olesen
207f8f688b Avoid using VNInfo::getCopy as much as possible. I want to get rid of it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114794 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 18:10:38 +00:00
Lang Hames
6e2968c85c Removed VNInfo::isDefAccurate(). Def "accuracy" can be checked by testing whether LiveIntervals::getInstructionFromIndex(def) returns NULL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114791 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 12:04:16 +00:00
Che-Liang Chiou
f9930da2ef Add ret instruction to PTX backend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 07:46:17 +00:00
Rafael Espindola
73ffea47d2 Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put 
symbols defined in merge sections in independent atoms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114786 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 05:42:19 +00:00
Owen Anderson
b0ba0f4170 LoadPRE was not properly checking that the load it was PRE'ing post-dominated the block it was being hoisted to. 
Splitting critical edges at the merge point only addressed part of the issue; it is also possible for non-post-domination
to occur when the path from the load to the merge has branches in it.  Unfortunately, full anticipation analysis is
time-consuming, so for now approximate it.  This is strictly more conservative than real anticipation, so we will miss
some cases that real PRE would allow, but we also no longer insert loads into paths where they didn't exist before. :-)

This is a very slight net positive on SPEC for me (0.5% on average).  Most of the benchmarks are largely unaffected, but
when it pays off it pays off decently: 181.mcf improves by 4.5% on my machine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114785 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 05:26:18 +00:00
Evan Cheng
5981fc6788 Fix IIC_iEXTAr itinerary class of Cortex-A9. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 01:09:28 +00:00
Evan Cheng
27fdcd1c95 Remove a unused instruction itinerary class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114782 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 01:06:02 +00:00
Eric Christopher
c69a000470 If we're changing the source of a memcpy we need to use the alignment 
of the source, not the original alignment since it may no longer
be valid.

Fixes rdar://8400094


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 00:57:26 +00:00
Evan Cheng
576a3968a2 Fix zero and sign extension instructions scheduling itineraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114780 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 00:49:35 +00:00
Jakob Stoklund Olesen
011e591071 Remove SlotIndex::PHI_BIT. It is no longer used by anything. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114779 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 00:45:18 +00:00
Jakob Stoklund Olesen
7c78e2624c Remove the only use of SlotIndex::isPHI. This bit is not being set consistently 
and it will be removed shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-25 00:45:15 +00:00
Jakob Stoklund Olesen
1803b37bad Terminator gaps were unused. Might as well delete them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114776 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 23:58:56 +00:00
Evan Cheng
bd30ce4311 More pseudo instruction scheduling itinerary fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114768 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 22:41:41 +00:00
John Thompson
54584743f3 Fix for test/CodeGen/PowerPC/2008-10-17-AsmMatchingOperands.ll crash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 22:24:05 +00:00
Evan Cheng
5be3922321 Fix scheduling itinerary for pseudo mov immediate instructions which expand into two real instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114766 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 22:03:46 +00:00
Rafael Espindola
a648918eb7 Reapply 114678 and 114667. Reverting them did not fix the bot: 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost/builds/69

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 21:19:03 +00:00
Jim Grosbach
433a5785cc Add ARM explicit MCInst lowering for the Thumb eh.sjlj.setjmp sequence. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114758 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 20:47:58 +00:00
Michael J. Spencer
1f40960543 Get rid of pop_macro warnings on MSVC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 19:48:47 +00:00
Evan Cheng
fff606d7b2 Enable code placement optimization pass for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 19:07:23 +00:00
Dale Johannesen
c451051157 We can't return SSE/MMX vectors if SSE is disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 19:05:48 +00:00
Rafael Espindola
cd4b20a25b Revert 114678 and 114667 to see if 
http://google1.osuosl.org:8011/builders/llvm-gcc-i386-linux-selfhost

gets happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 18:48:08 +00:00
Nicolas Geoffray
946e3c9f9d Attach a DebugLoc to a GC point in order to get precise information in the JIT of a GC point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 17:27:50 +00:00
Daniel Dunbar
facb34b41c MC/AsmParser: Handle a missed case of floating literals in the lexer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 17:10:26 +00:00
Evan Cheng
de0e11c8f3 Fix a potential null dereference bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 05:18:35 +00:00
Daniel Dunbar
b95a079cae MC/AsmParser: Support .single and .double for embedding floating point literals. 
- I believe more modern 'gas' supports a more enhanced set of arithmetic on
   them, but for now the only thing we can do is emit them as data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 01:59:56 +00:00
Daniel Dunbar
54f0a625b0 MC/Lexer: Add 'Real' token type for floating point literals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 01:59:31 +00:00
Daniel Dunbar
75413b1464 MC: Add missing ')' in diagnostic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114717 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-24 01:58:56 +00:00
Owen Anderson
f523e476c2 Revert r114703 and r114702, removing the isConditionalMove flag from instructions. After further 
reflection, this isn't going to achieve the purpose I intended it for.  Back to the drawing board!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 23:45:25 +00:00
Bob Wilson
2a6e616142 Set alignment operand for NEON VST instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 23:42:37 +00:00
Jim Grosbach
453900814e ARM-mode eh.sjlj.setjmp pseudo MC-inst lowering expansion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114707 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 23:33:56 +00:00
Jim Grosbach
b327e13740 #+4 --> #4 for consistency with other asm output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114706 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 23:32:38 +00:00
Jim Grosbach
45d6c1777c Fix formatting of output .s code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114705 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 23:03:26 +00:00
Owen Anderson
71e416ac3a Add isConditionalMove bits to X86 and ARM instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114703 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 22:57:01 +00:00
Bob Wilson
40ff01a030 Set alignment operand for NEON VLD instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 21:43:54 +00:00
Rafael Espindola
e15eb4e14c Correctly handle weak undefined symbols. Before we would get a invalid binding 
(2 == STB_WEAK | STB_GLOBAL).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 19:55:14 +00:00
Jim Grosbach
b2dda4bd34 never mind. I can't read, apparently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 19:42:17 +00:00
Evan Cheng
676e258366 Fix r114632. Return if the only terminator is an unconditional branch after the redundant ones are deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 19:42:03 +00:00
Jim Grosbach
24e6f2f802 Fix opcode value for the 'trap' instruction, keeping the type suffix on the 
constant. Hopefully the non-Darwin bots will like it...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 19:32:40 +00:00
Jim Grosbach
5c49b69609 explicit 'unsigned long' on constant value. Hopefully make bots happier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 19:08:04 +00:00
Benjamin Kramer
c8ab9eb066 Unbreak build. Jim, please review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114684 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 18:57:26 +00:00
Evan Cheng
8c1f4329e2 Revert 114634 for now since buildbot claim it broke Clang self-hosting. I doubt it but it's possible it's exposing another bug somewhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114681 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 18:32:19 +00:00
Jim Grosbach
2e6ae13bf6 Clean up the 'trap' instruction printing a bit. Non-Darwin assemblers don't 
(yet) recognize the 'trap' mnemonic, so we use .short/.long to emit the
opcode directly. On Darwin, however, we do want the mnemonic for more
readable assembly code and better disassembly.

Adjust the .td file to use the 'trap' mnemonic and handle using the binutils
workaround in the assembly printer. Also tweak the formatting of the opcode
values to make them consistent between the MC printer and the old printer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 18:05:37 +00:00
Rafael Espindola
a5c6b78bf8 Correctly compute the offset of the symbol. Forgot these bits from the 
last commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114678 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 18:01:31 +00:00
Jim Grosbach
16c9a64c28 nuke unused var 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114676 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 17:58:00 +00:00
Rafael Espindola
b142bef30b Represent relocations against local symbols as relocations against the section 
they are in. Both ways should be equivalent, but gas produces relocations
against the section.

Roman wrote the patch, I added the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 17:25:18 +00:00
Bob Wilson
edf017487f Fix llvm-extract so that it changes the linkage of all GlobalValues to 
"external" even when doing lazy bitcode loading.  This was broken because
a function that is not materialized fails the !isDeclaration() test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114666 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 17:25:06 +00:00
Oscar Fuentes
df30bdb3a7 Fix VS 2010 build. 
Patch by Nathan Jeffords!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 16:59:36 +00:00
Rafael Espindola
51efe7a253 Fix the FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114639 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 14:14:56 +00:00
Evan Cheng
b8db1981b8 Follow up to r114630. Do not optimize away unconditional branch following a conditional one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 07:18:35 +00:00
Evan Cheng
dd3a41a6b3 Disable codegen prepare critical edge splitting. Machine instruction passes now 
break critical edges on demand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114633 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 06:55:34 +00:00
Evan Cheng
108c872466 If there are multiple unconditional branches terminating a block, eliminate all 
but the first one. Those will never be executed. There was logic to do this
but it was faulty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114632 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 06:54:40 +00:00
Evan Cheng
b0cdf8a446 Don't sink insert_subreg, subreg_to_reg, reg_sequence. They are meant to be 
close to their sources to facilitate coalescing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114631 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 06:53:00 +00:00
Evan Cheng
266a99d161 SDISel should not optimize a unconditional branch following a conditional branch 
when the unconditional branch destination is the fallthrough block. The
canonicalization makes it easier to allow optimizations on DAGs to invert
conditional branches. The branch folding pass (and AnalyzeBranch) will clean up
the unnecessary unconditional branches later.

This is one of the patches leading up to disabling codegen prepare critical edge
splitting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114630 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 06:51:55 +00:00
Lang Hames
f70e7cc7a2 Moved the PBQP allocator class out of the header and back in to the cpp file to hide the gory details. 
Allocator instances can now be created by calling createPBQPRegisterAllocator.

Tidied up use of CoalescerPair as per Jakob's suggestions.

Made the new PBQPBuilder based construction process the default. The internal construction process
remains in-place and available via -pbqp-builder=false for now. It will be removed shortly if the new
process doesn't cause any regressions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 04:28:54 +00:00
Sean Callanan
38a9288f78 Fixed a crash in the enhanced disassembler where 
because of the lack of a newline, AsmToken::Eof
was being found instead of AsmToken::EndOfStatement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-23 02:14:12 +00:00
Jim Grosbach
637d89fe0e Add support for ELF PLT references for ARM MC asm printing. Adding a 
new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 23:27:36 +00:00
Jim Grosbach
b6ec8cae3c Enable a few additional asserts in MC instruction lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 23:01:28 +00:00
Owen Anderson
ed1088afb5 A select between a constant and zero, when fed by a bit test, can be efficiently 
lowered using a series of shifts.
Fixes <rdar://problem/8285015>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114599 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:58:22 +00:00
Cameron Esfahani
4af1eaee70 Fix PR8201: Update the code to call via X86::CALL64pcrel32 in the 64-bit case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:35:21 +00:00
Bob Wilson
b68987e4bf Change VDUPLANE DAG combiner to just return the result instead of calling 
CombineTo to avoid putting the result on the worklist.  I don't think it makes
much difference for now, but it might help someday as we add more DAG
combine optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:27:30 +00:00
Rafael Espindola
59ff3c9134 Avoid some Mach-O specific alignment being done on ELF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:27:05 +00:00
Chris Lattner
e07b75e069 allow target-specific label suffixes, patch by Yuri Gribov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114592 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-09-22 22:19:53 +00:00