6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-11 07:24:06 +00:00
Code Issues Projects Releases Wiki Activity
75,900 Commits 39 Branches 0 Tags 277 MiB
4bffb62289
Commit Graph

49712 Commits

Author SHA1 Message Date
Kalle Raiskila
54f8a9f54d Don't insert branch hint lables that are never used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 10:14:56 +00:00
Owen Anderson
9bd655dcde Fix PR10755 by checking for invalid predicate codes from UNPREDICTABLE t2IT instructions when decoding their successors. 
This is the last disassembly crash detected by exhaustive Thumb2 instruction space.  Major thanks to Chandler Carruth for making this kind of exhaustive testing possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 06:19:51 +00:00
Craig Topper
8fd13b6de5 Fix disassembling of VCVTSD2SI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138623 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 04:49:29 +00:00
Andrew Trick
5434c1e73b LoopInfo::updateUnloop fix, and verify Block->Loop maps. 
Fixes an oversight, and adds verification to catch it in the unloop.ll tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138622 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 03:06:34 +00:00
Eli Friedman
069e2ed794 Atomic load/store on ARM/Thumb. 
I don't really like the patterns, but I'm having trouble coming up with a
better way to handle them.

I plan on making other targets use the same legalization
ARM-without-memory-barriers is using... it's not especially efficient, but
if anyone cares, it's not that hard to fix for a given target if there's
some better lowering.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 02:59:24 +00:00
Benjamin Kramer
9bb5488dbd Address review comments. 
- Reword comments.
- Allow undefined behavior interfering with undefined behavior.
- Add address space checks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138619 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 02:25:55 +00:00
Benjamin Kramer
98d6d2372f SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load or store to the address returned by the PHI node then we can consider this incoming value as dead and remove the edge pointing there, unless there are instructions that can affect control flow executed in between. 
In theory this could be extended to other instructions, eg. division by zero, but it's likely that it will "miscompile" some code because people depend on div by zero not trapping. NULL pointer dereference usually leads to a crash so we should be on the safe side.

This shrinks the size of a Release clang by 16k on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138618 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 01:22:29 +00:00
Bill Wendling
09908c4b4a Look at only the terminators of the basic block. Also, if we're using the new EH 
scheme, return 'true' so that it doesn't try to run the old EH scheme's fixup on
the new code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138605 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 23:48:11 +00:00
Bill Wendling
c82a61c6c6 Initial check in that will auto-upgrade the old EH scheme to the new EH scheme. 
This upgrade suffers from the problems of the old EH scheme - i.e., that the
calls to llvm.eh.exception() and llvm.eh.selector() can wander off and get
lost. It makes a valiant effort to reclaim these little lost lambs.

This is a first draft, so it hasn't yet been hooked up to the parser.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138602 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 23:22:40 +00:00
Bruno Cardoso Lopes
f1a264232c Do the same as r138461. Mark VZEROALL as clobbering all YMM registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138592 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 22:23:58 +00:00
Nick Lewycky
b210cbf692 Remove stray fullstop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 21:46:20 +00:00
Bruno Cardoso Lopes
6292eceea0 Add support for AVX 256-bit version of MOVDDUP! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138588 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 21:40:37 +00:00
Bruno Cardoso Lopes
06ef923d14 Make isMOVDDUP mask check more strict and update comments! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138587 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 21:40:34 +00:00
Owen Anderson
99906830e8 Port over additional encoding tests to decoding tests, and fix an operand ordering bug this exposed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 18:30:18 +00:00
Benjamin Kramer
cf847bfa6f Intel family 6 model 44 is Gulftown/Westmere-EP and doesn't have AVX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138573 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 18:05:56 +00:00
Andrew Trick
b9ca5124f8 ARM fix for missing implicit operands on ldmia_ret. 
rdar://10005094: miscompile of 176.gcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138568 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 17:50:53 +00:00
Andrew Trick
51972da576 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138566 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 17:40:54 +00:00
Jim Grosbach
0c49ac05cd Explicitly disallow predication in Thumb1 assembly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138562 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 17:23:55 +00:00
Craig Topper
ebc1db0fac Add more missing TB encodings to VEX instructions to allow them to be disassembled. Fixes remainder of PR10678. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138553 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 08:11:01 +00:00
Craig Topper
ea03659d23 Add TB encoding to VEROALL, VZEROUPPER, and VCVTPS2PD to allow them to be disassembled. Fixes PR10723. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138551 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 06:57:46 +00:00
Bill Wendling
8b6af8a2a9 LSR wants to split the landing pad's critical edge. Let it do it, but use the 
proper function to do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138550 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 05:55:40 +00:00
Benjamin Kramer
2df9f8df95 Initialize member variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138548 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 04:04:18 +00:00
Bruno Cardoso Lopes
07b7f672a0 Add support for 256-bit versions of VSHUFPD and VSHUFPS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138546 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 02:58:26 +00:00
Bruno Cardoso Lopes
e7461c0353 Add memory version of SHUFPD to mask decoding! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138545 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 02:58:21 +00:00
Evan Cheng
77eaaf0a0c Hide -global-merge option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138540 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:22:49 +00:00
Bill Wendling
89d4411cef When inserting new instructions, use getFirstInsertionPt instead of 
getFirstNonPHI so that it will skip over the landingpad instructions as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138537 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:08:34 +00:00
Evan Cheng
b8cfe4ff41 Add a command line option to disable global merge pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138536 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:00:36 +00:00
Evan Cheng
0f660260e6 Remove a out-of-place comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138534 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 00:54:42 +00:00
Bruno Cardoso Lopes
27831e5e6f Create a section for non-instructions patterns in the beginning of the 
file, and move more code around!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138521 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:11 +00:00
Bruno Cardoso Lopes
9993499057 Move code around! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138520 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:09 +00:00
Bruno Cardoso Lopes
de79231468 Organize UNPCK* patterns, also add remaining for AVX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138519 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:06 +00:00
Bruno Cardoso Lopes
4cf4778ac4 Move remaining MOVDDUP patterns close to MOVDDUP defintion and duplicate 
the missing ones for AVX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138518 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:04 +00:00
Bruno Cardoso Lopes
4724f25ed6 Organize and tidy up MOVDDUP section. Also update comments! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138517 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:02 +00:00
Bruno Cardoso Lopes
6140294363 Move MOVHLPS patterns close to MOVHLPS definition, and duplicate the 
pattern for 128-bit AVX mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138516 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:17:59 +00:00
Bruno Cardoso Lopes
954d5eabb7 Move all PSHUF* patterns close to the PSHUF* definitions. Also be 
explicit about which subtarget they refer to, and add AVX versions of
the ones we currently don't. Remove old and now wrong comments!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138515 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:17:57 +00:00
Bruno Cardoso Lopes
af002d8405 Move all SHUFP* patterns close to the SHUFP* definitions. Also be 
explicit about which subtarget they refer to, and add AVX versions of
the ones we currently don't. Make the mask check more strict, to be
clear it won't be used to match to 256-bit versions!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138514 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:17:55 +00:00
Owen Anderson
f44082091c Perform more thorough checking of t2IT mask parameters, which fixes all remaining crashers when disassembling the entire 16-bit instruction space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138507 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 22:40:22 +00:00
Eli Friedman
f8f90f0174 Hook up 64-bit atomic load/store on x86-32. I plan to write more efficient implementations eventually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138505 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 22:33:28 +00:00
Evan Cheng
5fbe5e783e Some autoconf tests use module level inline asm to test compiler's handling of 
.cfi_startproc. e.g. libffi:

 $ cat confopt.c 
asm (".cfi_startproc\n\t.cfi_endproc");

int main () { return 0; }

Teach MC / dwarf emission to handle these cfi directives which essentially
create an empty frame.

rdar://10017184


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138504 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 22:31:37 +00:00
Jim Grosbach
b9d3ff8729 ARM asm backend initialize isThumbMode based on target triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138501 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 22:27:35 +00:00
Jim Grosbach
4d23e99d2a Thumb .n mnemonic qualifiers can be ignored for now. 
We'll need to pay attention to them when we start getting more serious about
the details of parsing thumb2 assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138500 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 22:19:48 +00:00
Jim Grosbach
f69c804036 Thumb parsing and encoding for SUB (SP minu immediate). 
Fix FiXME in test file. Remove FIXME for SUB (SP minus register) since that
form is Thumb2 only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138494 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 21:42:27 +00:00
Owen Anderson
12a1e3bbcb Be careful not to walk off the end of the operand info list while updating VFP predicates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138492 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 21:35:46 +00:00
Jim Grosbach
72f39f8436 Thumb parsing and encoding support for ADD SP instructions. 
Fix the test FIXME and add parsing support for the ADD (SP plus immediate)
and ADD (SP plus register) instruction forms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138488 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 21:22:15 +00:00
Eli Friedman
4317fe1fc6 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138487 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 21:17:30 +00:00
Bill Wendling
a4c86ab073 Skip the landingpad instruction when determining the insertion point. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138481 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 21:06:46 +00:00
Eli Friedman
327236cd6c Basic x86 code generation for atomic load and store instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138478 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 20:50:09 +00:00
Bill Wendling
b05fdd6bab Use getFirstInsertionPt instead of getFirstNonPHI so that it skips to the proper 
insertion place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138473 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 20:28:43 +00:00
Nadav Rotem
4c7c0f2353 Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138469 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 20:18:38 +00:00
Jim Grosbach
df9ce6bbc5 When printing Thumb1 NOP ('mov r8, r8'), make sure to print the predicate. 
rdar://10015134

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138467 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 20:06:14 +00:00
Bruno Cardoso Lopes
356e988110 Mark VZEROALL as clobbering all YMM registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138461 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 18:48:33 +00:00
Jim Grosbach
f95aaf951b Add missing explicit writeback operand to tSTMIA_UPD. 
rdar://10014745

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138457 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 18:19:42 +00:00
Evan Cheng
3e74d6fdd2 Move TargetRegistry and TargetSelect from Target to Support where they belong. 
These are strictly utilities for registering targets and components.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138450 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 18:08:43 +00:00
Rafael Espindola
605e2b5184 Fix a crashing bug in SplitBlock when it is called on a block with no 
dominator information even though dominators were previously computed.

Patch by Nick Sumner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138449 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 18:07:01 +00:00
Jim Grosbach
c7e0bb2325 Thumb add SP assembly syntax fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138448 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 18:04:27 +00:00
Jim Grosbach
5b81584f74 Thumb1 ADD/SUB SP instructions are predicable in Thumb2 mode. 
Add the predicate operand to the instructions. Update the back end
accordingly where the instructions are used. Restrict the SP operands
to actually only be SP, as otherwise these break assembly parsing for the
normal instruction variants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138445 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 17:46:13 +00:00
Owen Anderson
e234d02204 Be stricter in enforcing IT instruction predicate values, so that we don't end up trying to print out an illegal predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138443 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 17:21:43 +00:00
Jim Grosbach
ee61d67c2f Tidy up. Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138437 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 16:44:17 +00:00
Richard Osborne
8f9c5cca4f Add Uses=[SP] to call instructions. This fixes a miscompilation with a 
variable sized alloca.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138433 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 13:32:43 +00:00
Craig Topper
13894fa135 Break 256-bit vector int add/sub/mul into two 128-bit operations to avoid costly scalarization. Fixes PR10711. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138427 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 06:14:18 +00:00
Bill Wendling
3ae96d69ef Add the sentinal "no handle" value to the ResumeInst. 
A value of -1 at a call site tells the personality function that this call isn't
handled by the current function. Since the ResumeInsts are converted to calls to
_Unwind_SjLj_Resume, add a (volatile) store of -1 to its 'call site'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138416 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 00:00:23 +00:00
Bill Wendling
fc8713ff74 Don't replace *all* uses with the new stuff. 
This is not necessarily the first or dominating use of the EH values. The IR
breaks if it's not. So replace the specific value in the instruction with the
new value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138406 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 22:55:03 +00:00
Bill Wendling
cfcccef926 Look at the end of the entry block for an invoke. 
The invoke could be at the end of the entry block. If it's the only one, then we
won't process all of the landingpad instructions correctly. This code is
currently ugly, but should be made much nicer once the new EH switch is thrown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138397 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 22:20:16 +00:00
Bruno Cardoso Lopes
d8b7dd5252 Fix a nasty bug where a v4i64 was being wrong emitted with 32-bit 
permutations. Also tidy up some patterns and make them close to their
instruction definition!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138392 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 22:06:37 +00:00
Bill Wendling
4477d691ed A landingpad instruction is neither folded nor dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138387 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 21:33:05 +00:00
Jim Grosbach
5aa29a0cff Move ARM frame-unwinding EHABI handling a touch earlier. 
It should go before AsmPrinter MC pseudo expansion since it's based on
MachineInstr, not MCInst. Otherwise any frame related pseudo instructions
may be missed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138386 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 21:32:34 +00:00
Jim Grosbach
d04f6a581c [SU]XT[BH] are only available on ARMv6 and up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138373 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 20:53:08 +00:00
Nate Begeman
7ced7763ca Add some useful accessors to c++ api that appear to be missing from the c api 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138371 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 20:27:46 +00:00
Evan Cheng
7801136b95 Some refactoring so TargetRegistry.h no longer has to include any files 
from MC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138367 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 20:15:21 +00:00
Eric Christopher
acc8f2d938 Revert "Address Duncan's CR request:" 
This reverts commit 20a05be15e. (svn rev 138340)

Conflicts:

	test/Transforms/InstCombine/bitcast.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138366 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 20:11:10 +00:00
Jim Grosbach
ec8b866434 Thumb parsing and encoding for SVC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138360 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 19:49:10 +00:00
Evan Cheng
1dafa70585 Fix 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138356 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 19:17:21 +00:00
Nick Lewycky
726ebd6ff3 PerformSubCombine to work on integers larger than i128. Fixes a crasher. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138354 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 19:01:24 +00:00
Jim Grosbach
803b1aa8ef Thumb parsing and encoding for tSTRspi. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138348 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 18:39:41 +00:00
Jim Grosbach
1e84f19337 Thumb parsing and encoding for STM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138345 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 18:15:37 +00:00
Jim Grosbach
aa875f8c6f Factor low reg checking into a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138344 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 18:13:04 +00:00
Owen Anderson
82265a2c72 Fix decoding of Thumb2 prefetch instructions, which account for all the remaining Thumb2 decoding failures found by randomized testing so far. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138341 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:51:38 +00:00
Nadav Rotem
20a05be15e Address Duncan's CR request: 
1. Cleanup the tests in ConstantFolding.cpp
2. Implement isAllOnes for Constant, ConstantFP, ConstantVector





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138340 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:48:43 +00:00
Owen Anderson
6153a036f5 Fix Thumb2 decoding of CPS instructions to mirror ARM decoding of the same instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138339 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:45:18 +00:00
Jim Grosbach
cefe4c9c48 Clean up Thumb load/store multiple definitions. 
There is no non-writeback store multiple instruction in Thumb1, so
don't define one. As a result load multiple is the only instantiation of
the multiclass, so refactor that away entirely.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138338 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:41:15 +00:00
Owen Anderson
e732cb0043 Fix two more instances of mis-matched operand names breaking disassembly. Found by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138337 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 17:37:32 +00:00
Ivan Krasin
38fb2db6c9 This patch adds support of le32 pseudo-cpu that stands for generic 
32-bit little-endian CPU. Used by PNaCl and Emscripten.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138335 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 16:59:00 +00:00
Craig Topper
a534780da0 Add support for breaking 256-bit v16i16 and v32i8 VSETCC into two 128-bit ones, avoiding sclarization. Add vex form of pcmpeqq and pcmpgtq. Fixes more cases for PR10712. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138321 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 04:36:33 +00:00
NAKAMURA Takumi
07097ddbc0 lib/Support/Windows/Windows.h: Update required IE ver. 0x0600 should be enough for Windows XP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138319 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 03:49:11 +00:00
Bruno Cardoso Lopes
3bde6fe0df Introduce a pass to insert vzeroupper instructions to avoid AVX to 
SSE transition penalty. The pass is enabled through the "x86-use-vzeroupper"
llc command line option. This is only the first step (very naive and
conservative one) to sketch out the idea, but proper DFA is coming next
to allow smarter decisions. Comments and ideas now and in further commits
will be very appreciated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138317 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-23 01:14:17 +00:00
Jim Grosbach
04d55f1905 Thumb parsing and encoding for SBC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138311 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:55:58 +00:00
Jim Grosbach
934755ac04 Thumb parsing and encoding for RSB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138308 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:47:13 +00:00
Owen Anderson
8e1e60b5f8 Reject invalid imod values in t2CPS instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138306 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:44:04 +00:00
Bill Wendling
aef508dfc1 Split the landing pad's edge. Then for all uses of a landingpad instruction's 
value, we insert a load of the exception object and selector object from memory,
which is where it actually resides. If it's used by a PHI node, we follow that
to where it is being used. Eventually, all landingpad instructions should have
no uses. Any PHI nodes that were associated with those landingpads should be
removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138302 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:38:40 +00:00
Owen Anderson
c6788c83b4 t2SMLAD is a four-register instruction, not a three-register one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138301 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:31:45 +00:00
Owen Anderson
22d35086fe Correct operand naming of t2USAT16 to allow proper decoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138300 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:27:47 +00:00
Jim Grosbach
86b5d2b02d Revert r138278 now that r138289 has fixed the root issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138299 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:25:48 +00:00
Owen Anderson
2379fc235f Match operand naming to allow correct decoding of t2LDRSH_POST. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138298 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:22:05 +00:00
Jim Grosbach
6dcafc0d0b Improve error checking for tPUSH and tPOP register lists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138295 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:17:34 +00:00
Owen Anderson
796c3659c9 Match operand names to provide correct decoding for Thumb2 SMULL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138294 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:16:48 +00:00
Owen Anderson
2c9f83533b Provide a correct decoder hook for Thumb2 shifted registers. Found by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138292 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:10:16 +00:00
Ivan Krasin
d883453213 Add NativeClient support to Triple::ParseOS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138291 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:08:53 +00:00
Evan Cheng
cb08f18d5b Follow up to Jim's r138278. This fixes commuteInstruction so it handles two-address instructions correctly. I'll let Jim add a test case. :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138289 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:04:56 +00:00
Jim Grosbach
7260c6a4ea Thumb assemmbly parsing diagnostic improvements for LDM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138287 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 23:01:07 +00:00
Benjamin Kramer
3c1fece071 X86: Add some operand types required to identify calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138285 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 22:55:32 +00:00
Jim Grosbach
5e8701002b Temporarilly mark tMUL as not commutable. 
It's not playing nicely in the coalescer with the tied operand. Disable
commutability for now while we figure out the deeper fix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138278 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 22:00:18 +00:00
Owen Anderson
838130e3b9 Provide operand encoding information for half-precision VCVT instructions. Found by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138273 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 21:34:00 +00:00
Bruno Cardoso Lopes
2ac8111159 Add support for breaking 256-bit int VETCC into two 128-bit ones, 
avoding scalarization of the compare. Reduces code from 59 to 6
instructions. Fix PR10712.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138271 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 20:31:04 +00:00
Bruno Cardoso Lopes
bde9f1b302 Add 128-bit AVX codegen for PCMP* family of integer instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138270 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 20:31:00 +00:00
Owen Anderson
357ec6850b Fix decoding of VMOVSRR and VMOVRRS, which account for the overwhelming majority of decoder crashes detected by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138269 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 20:27:12 +00:00
Jordy Rose
eeb37f1a56 Make DynamicLibrary thread-safe w/r/t call to dlerror() after dlopen(). PR10718 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138260 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 19:01:52 +00:00
Jim Grosbach
11e03e7c2d Tighten up ARM reglist validation a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138258 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:50:36 +00:00
Bill Wendling
d36b3e3681 Some whitespace fixes and #include reordering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138256 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:44:49 +00:00
Owen Anderson
2cbf210450 Fix another batch of VLD/VST decoding crashes discovered by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138255 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:42:13 +00:00
Nick Lewycky
33e94fa99c Be less redundant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138252 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:26:12 +00:00
Owen Anderson
f1c8e3e70e Correct writeback handling of duplicating VLD instructions. Discovered by randomized testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138251 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:22:06 +00:00
Jim Grosbach
a33b31be45 Clean up predicates on ARM target instruction aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138249 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 18:04:24 +00:00
Owen Anderson
b113ec55e8 Fix an incorrect shift when decoding SP-relative stores in Thumb1-mode. Add more tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138246 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 17:56:58 +00:00
Dan Gohman
d446460f42 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138243 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 17:29:37 +00:00
Dan Gohman
1b31ea8f93 Constant pointers to objects don't need reference counting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138242 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-22 17:29:11 +00:00
Benjamin Kramer
2e608c6b61 PathV2: Handle more reserved filenames on windows. 
Patch by Aaron Ballman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138213 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 21:36:38 +00:00
Jim Grosbach
fbe1681490 Fix AsmParser binary precedence for shift operators. 
rdar://9976729



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138208 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 16:24:13 +00:00
Nadav Rotem
1c9fe0361b Add constant folding support for bitcasts of splat vectors to integers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138206 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 14:02:29 +00:00
NAKAMURA Takumi
77c108241a lib/Support/CrashRecoveryContext.cpp: Add Win32 support to CrashRecoveryContext. Thanks to Aaron Ballman! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138199 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 06:35:36 +00:00
NAKAMURA Takumi
aa629668db lib/Support/Windows/Windows.h: Require at least Windows XP(5.1) API. We will not support Windows 2000 any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138198 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 06:35:31 +00:00
Benjamin Kramer
0dac82d92e Cast through intptr_t, ISO C++ requires it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138186 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 02:22:42 +00:00
Chad Rosier
fea95c6bad Remove the VMOVQQ pseudo instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138177 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 00:52:40 +00:00
Chad Rosier
bdc18572be Remove VMOVQQQQ pseudo instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138174 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 00:40:14 +00:00
Jakob Stoklund Olesen
ac3656ed7a Add <imp-def> operands to QQ and QQQQ stack loads. 
This pleases the register scavenger and brings
test/CodeGen/ARM/2011-08-12-vmovqqqq-pseudo.ll a little closer to
working with -verify-machineinstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138164 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 00:17:45 +00:00
Chad Rosier
e5038e191d VMOVQQQQs pseudo instructions are only created by ARMBaseInstrInfo::copyPhysReg. 
Therefore, rather then generate a pseudo instruction, which is later expanded,
generate the necessary instructions in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138163 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-20 00:17:25 +00:00
Bill Wendling
94657b964f If we're splitting the landing pad block and assigning it only one predecessor, 
then don't split it a second time, since that block will be dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138153 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 23:46:30 +00:00
Devang Patel
93d39be530 Do not use named md nodes to track variables that are completely optimized. This does not scale while doing LTO with debug info. New approach is to include list of variables in the subprogram info directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138145 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 23:28:12 +00:00
Jim Grosbach
0780b6303b Thumb parsing and encoding support for NOP. 
The irony is not lost that this is not a completely trivial patchset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138143 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 23:24:36 +00:00
Akira Hatanaka
854a7db117 Fix bug in function IsShiftedMask. Remove parameter SizeInBits, which is not 
needed for Mips32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138132 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:59:00 +00:00
Jim Grosbach
2c3f70e5d4 Thumb assembly parsing and encoding for NEG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138131 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:51:03 +00:00
Benjamin Kramer
deaa64546e Roll back the rest of r126557. It's a hack that will break in some obscure cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138130 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:39:31 +00:00
Jim Grosbach
3a244bd8b3 Fix NEG alias 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138125 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:30:58 +00:00
Jim Grosbach
7a01069420 Be more lenient on tied operand matching for MUL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138124 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:30:46 +00:00
Bruno Cardoso Lopes
0c9acfcb50 Re-write part of VEX encoding logic, to be more easy to read! Also fix 
a bug and add a testcase!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138123 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:27:29 +00:00
Jim Grosbach
7a32fa1c78 Update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138116 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:19:48 +00:00
Jim Grosbach
88ae2bc6d5 Thumb assembly parsing and encoding for MUL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138108 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 22:07:46 +00:00
Bill Wendling
cbe003b243 The landingpad instruction isn't dead simply because it's value isn't used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138102 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 21:52:06 +00:00
Nick Lewycky
5aa5d574f4 Eli points out that this is what report_fatal_error() is for. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138091 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 21:45:19 +00:00
Jim Grosbach
4ec6e888ec Thumb assembly parsing and encoding for MOV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138076 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 20:46:54 +00:00
Jim Grosbach
73a1c2cea1 Tidy up. Tab character. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138072 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 20:30:19 +00:00
Nick Lewycky
d133bf8f27 This is not actually unreachable, so don't use llvm_unreachable for it. Since 
the intent seems to be to terminate even in Release builds, just use abort()
directly.

If program flow ever reaches a __builtin_unreachable (which llvm_unreachable is
#define'd to on newer GCCs) then the program is undefined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138068 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 20:14:27 +00:00
Jim Grosbach
b86e2dbf61 Tab characters. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138066 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 19:41:46 +00:00
Jim Grosbach
1b7b68f087 Thumb assembly parsing and encoding for LSL(immediate). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138063 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 19:29:25 +00:00
Jim Grosbach
05b0156734 Thumb assembly parsing and encoding for LDRSB and LDRSH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138061 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 19:17:58 +00:00
Jim Grosbach
38466309d5 Thumb assembly parsing and encoding for LDRH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138060 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 18:55:51 +00:00
Jim Grosbach
48ff5ffe9e Thumb assembly parsing and encoding for LDRB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138059 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 18:49:59 +00:00
Sean Callanan
40827c4190 Fixed a memory bug in the MCDisassembler where 
MCParsedAsmOperand objects were being leaked.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138053 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 18:23:06 +00:00
Jim Grosbach
67b95f902a Thumb assembly parsing and encoding for LDR(literal). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138052 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 18:20:48 +00:00
Jim Grosbach
ecd8589683 Thumb assembly parsing and encoding for LDR(immediate) form T2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138050 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 18:13:48 +00:00
Jim Grosbach
2f7232efd5 Use helper function to check for low registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138048 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 17:57:22 +00:00
Jim Grosbach
60f91a3d95 Thumb assembly parsing and encoding for LDR(immediate) form T1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138047 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 17:55:24 +00:00
Jim Grosbach
c6d7c653c9 Add explanatory comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138042 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 16:52:32 +00:00
Kalle Raiskila
67a9b1fcc7 Have SPU backend use the external TCE scheduler, if the library is loaded as a 
module.

Patch by Pekka Jääskeläinen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138037 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 10:50:24 +00:00
Craig Topper
e004d941ec Add TB encoding to VEX versions of SSE fp logical operations to fix disassembler 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138034 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 05:28:50 +00:00
Bruno Cardoso Lopes
863e0f25b7 Fix PR10677. Initial patch and idea by Peter Cooper but I've changed the 
implementation!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138029 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 02:23:56 +00:00
Jakob Stoklund Olesen
61b2d7f207 Add llc flags to disable machine DCE and CSE. 
This is useful for unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 02:05:35 +00:00
Benjamin Kramer
a67f14bf53 Make a bunch of symbols private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138025 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 01:42:18 +00:00
Benjamin Kramer
613d13beb0 C API functions must be able to see their extern "C" definitions, or it will be impossible to call them from C. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138022 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 01:36:54 +00:00
Jakob Stoklund Olesen
201f2463a7 Don't treat a partial <def,undef> operand as a read. 
Normally, a partial register def is treated as reading the
super-register unless it also defines the full register like this:

  %vreg110:sub_32bit<def> = COPY %vreg77:sub_32bit, %vreg110<imp-def>

This patch also uses the <undef> flag on partial defs to recognize
non-reading operands:

  %vreg110:sub_32bit<def,undef> = COPY %vreg77:sub_32bit

This fixes a subtle bug in RegisterCoalescer where LIS->shrinkToUses
would treat a coalesced copy as still reading the register, extending
the live range artificially.

My test case only works when I disable DCE so a dead copy is left for
RegisterCoalescer, so I am not including it.

<rdar://problem/9967101>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138018 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 00:30:17 +00:00
Dan Gohman
e6d5e88c12 Track a retain+release nesting level independently of the 
known-incremented level, because the two concepts can be used
to prove the saftey of a retain+release removal in different
ways.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138016 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 00:26:36 +00:00
Bill Wendling
b29ec06421 Intelligently split the landing pad block. 
We have to be careful when splitting the landing pad block, because the
landingpad instruction is required to remain as the first non-PHI of an invoke's
unwind edge. To retain this, we split the block into two blocks, moving the
predecessors within the loop to one block and the remaining predecessors to the
other. The landingpad instruction is cloned into the new blocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 00:09:22 +00:00
Bill Wendling
7e8840c4d9 Add SplitLandingPadPredecessors(). 
SplitLandingPadPredecessors is similar to SplitBlockPredecessors in that it
splits the current block and attaches a set of predecessors to the new basic
block. However, it differs from SplitBlockPredecessors in that it's specifically
designed to handle landing pad blocks.

Two new basic blocks are created: one that is has the vector of predecessors as
its predecessors and one that has the remaining predecessors as its
predecessors. Those two new blocks then receive a cloned copy of the landingpad
instruction from the original block. The landingpad instructions are joined in a
PHI, etc. Like SplitBlockPredecessors, it updates the LLVM IR, AliasAnalysis,
DominatorTree, DominanceFrontier, LoopInfo, and LCCSA analyses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138014 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-19 00:05:40 +00:00
Bruno Cardoso Lopes
df01610d6f Re-encoded 128-bit AVX versions of SQRT, RSQRT, RCP have 3 operands 
instead of 2. They were already defined this way in their regular
version, but not for the intrinsics versions (*_Int), and that would work
for assembly emission but not for object code, since a MachineOperand
would be missing. This commit fix PR10697.

Also removed the {VSQRT,VRSQRT,VRCP}r_Int forms and match the intrinsic
via INSERT_SUBREG+EXTRACT_SUBREG patterns. The same couldn't be done for
memory versions because sse_load_f32/sse_load_f64 operand need special
handling and don't work like regular "addr" operands.

There are right now 114 "*_Int" and 98 "Int_*" forms! I'm slowly
removing them as I step through, but hope we can get rid of these
someday, they are really annoying :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138012 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 23:59:21 +00:00
Devang Patel
2bd6269417 There is no need to add file as context for subroutine type. The subroutine type does not need any context. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138010 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 23:50:57 +00:00
Renato Golin
f1f6de1c9b add the comments of each declaration follow it, making it easier to read and compare to GCC's result. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138009 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 23:43:14 +00:00
Bill Wendling
26665de4f7 Use 'getFirstInsertionPt' when trying to insert new instructions during LICM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138008 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 23:42:36 +00:00
Akira Hatanaka
5ac8547a41 Use subword loads instead of a 4-byte load when the size of a structure (or a 
piece of it) that is being passed by value is smaller than a word.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138007 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 23:39:37 +00:00
Devang Patel
28bea08e53 Eliminate unnecessary forwarding function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138006 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 23:17:55 +00:00
Ivan Krasin
fb23462889 Add NativeClient operating system support. 
This patch adds support of NativeClient (*-*-nacl) OS support to LLVM.
It's already supported in autoconf/config.sub.

The motivation for this change is to start upstreaming PNaCl work. The
whole set of patches include llvm backends (i686, x86_64, ARM),
llvm-gcc (probably, would not be upstreamed because it's deprecated)
and clang (the work has been just started, the amount of changes is
going to be low and the most of the work is expected to be done close
to the mainline).




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138005 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:54:21 +00:00
Owen Anderson
78affc9ea1 STC2L_POST and STC2L_POST should be handled the same as STCL_POST/LDC_POST for the purposes of decoding all operands except the predicate. 
Found by randomized testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138003 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:47:44 +00:00
Owen Anderson
846dd95f87 Fix the decoding of RFE instruction. RFEs have the load bit set, while SRSs have it unset. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138000 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:31:17 +00:00
Devang Patel
49e2f03849 Add new DIE into the map asap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137998 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:21:50 +00:00
Owen Anderson
1dd56f05e1 Remember to fill in some operands so we can print _something_ coherent even when decoding the CPS instruction soft-fails. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137997 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:15:25 +00:00
Owen Anderson
14090bf263 Improve handling of failure and unpredictable cases for CPS, STR, and SMLA instructions. 
Fixes a large class of disassembler crashes found by randomized testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137995 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:11:02 +00:00
Ivan Krasin
74af88a666 FastISel: avoid function calls between the materialization of the constant and its use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137993 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 22:06:10 +00:00
Jim Grosbach
93b3eff623 Thumb assembly parsing and encoding for LDM instruction. 
Fix base register type and canonicallize to the "ldm" spelling rather than
"ldmia." Add diagnostics for incorrect writeback token and out-of-range
registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 21:50:53 +00:00
Dan Gohman
b48ef3a3ec Make it clear that this code is iterating in reverse order through the array. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137985 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 21:27:42 +00:00
Bill Wendling
66af89f642 Revert r137871. The loop simplify pass should require all exits from a loop that 
aren't from an indirect branch need to be dominated by the loop header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137981 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 21:10:01 +00:00
Bill Wendling
1c44d869cd Split out the updating of PHI nodes after splitting the BB into a separate 
function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137979 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 20:51:04 +00:00
Bill Wendling
9210e840dd Use this fantzy ArrayRef thing to pass in the list of predecessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137978 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 20:39:32 +00:00
Akira Hatanaka
dbe9a31683 Make IsShiftedMask a static function rather than defining it in an 
anonymous namespace.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137975 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 20:07:42 +00:00
Nick Lewycky
58e2cdfabd The edge from DISubprogram to DICompileUnit has been removed in recent versions 
of debug info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137972 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 19:07:42 +00:00
Jim Grosbach
0d1511c022 Thumb assembly parsing and encoding for CMP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137963 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 18:08:29 +00:00
Bill Wendling
d4770144d4 Use static instead of anonymous namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137959 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 17:57:57 +00:00
Jim Grosbach
11cca7a2ea Thumb instructions CBZ and CBNZ are Thumb2, not THumb1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137956 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 17:51:36 +00:00
Chris Lattner
489fee1b64 Rip out the old StructType APIs as warned about on llvmdev last week. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137953 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 17:39:28 +00:00
Jim Grosbach
90b5a08e1f ARM Thumb blx instruction fixup has same data range as bl. 
These fixups are handled poorly in general, and should have a single
contiguous range of bits per fixup type, but that's not how they're
currently organized, so for now in complex ones like for blx, we just tell the
emitter it's OK for the fixup to munge any bit it wants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137947 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 16:57:50 +00:00
Jim Grosbach
5f687decc8 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137946 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 16:50:45 +00:00
Bruno Cardoso Lopes
44d12eb998 Clenup and fix encoding for Mips ins and ext instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137943 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 16:30:49 +00:00
Jim Grosbach
3ce23d3d87 Add missing 'break'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137941 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 16:08:39 +00:00
Richard Osborne
c4dcf323cc Add intrinsics for SETEV, GETED, GETET. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137938 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 13:00:48 +00:00
Duncan Sands
10077194ec Remove unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137933 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 08:13:18 +00:00
Bill Wendling
a644b33e8b Split out the analysis updating code into a helper function. No intended 
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137926 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 05:25:23 +00:00
Bruno Cardoso Lopes
24b90e2287 Cleanup vector logical ops in AVX and add use int versions for simple 
v2i64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137919 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 02:11:34 +00:00
Devang Patel
f56ea610ed Dramatically speedup codegen prepare by a) avoiding use of dominator tree and b) doing a separate pass over dbg.value instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137908 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-18 00:50:51 +00:00
Jim Grosbach
2f815c0b50 Remove extraneous newline from operand print method. PR10569. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137900 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 23:23:07 +00:00
Jim Grosbach
421993f428 Clean up patterns for Thumb1 system instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137897 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 23:08:57 +00:00
Akira Hatanaka
667645f814 Changed definition of EXT and INS per Bruno's comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137892 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 22:59:46 +00:00
Jim Grosbach
395b453bed Thumb assembly parsing and encoding for B. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137891 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 22:57:40 +00:00
Devang Patel
f6d3a4c7c4 Do not use DebugInfoFinder. Extract debug info directly from llvm.dbg.cu named mdnode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137890 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 22:49:38 +00:00
Jim Grosbach
00f5d98205 Thumb assembly parsing and encoding for ASR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137889 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 22:49:09 +00:00
Eli Friedman
56efe24431 Atomic load/store handling for the passes using memdep (GVN, DSE, memcpyopt). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137888 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 22:22:24 +00:00
Bruno Cardoso Lopes
0dd80b0d69 Fix PR10688. Add support for spliting 256-bit vector shifts when the 
shift amount is variable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137885 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 22:12:20 +00:00
Jim Grosbach
c40578250d Tidy up. 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137881 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:58:18 +00:00
Bill Wendling
2ac0e6be05 Add the support in code-gen for the landingpad instruction lowering. 
The landingpad instruction is lowered into the EXCEPTIONADDR and EHSELECTION
SDNodes. The information from the landingpad instruction is harvested by the
'AddLandingPadInfo' function. The new EH uses the current EH scheme in the
back-end. This will change once we switch over to the new scheme. (Reviewed by
Jakob!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137880 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:56:44 +00:00
Jim Grosbach
70939ee141 ARM clean up the imm_sr operand class representation. 
Represent the operand value as it will be encoded in the instruction. This
allows removing the specialized encoder and decoder methods entirely. Add
an assembler match class while we're at it to lay groundwork for parsing the
thumb shift instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137879 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:51:27 +00:00
Bill Wendling
795cf5efba Disable PRE for landing pads. 
PRE needs the landing pads to have their critical edges split. Doing this for a
landing pad is non-trivial. Abandon the attempt to perform PRE when we come
across a landing pad. (Reviewed by Owen!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137876 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:32:02 +00:00
Bill Wendling
a65a3bc1a1 Revert patch. Forgot a dependent commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137875 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:28:05 +00:00
Bill Wendling
4eb2062143 Add the body of 'visitLandingPad'. 
This generates the SDNodes for the new exception handling scheme. It takes the
two values coming from the landingpad instruction and assigns them to the
EXCEPTIONADDR and EHSELECTION nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:25:14 +00:00
Bill Wendling
ab82fd9ff6 Increment the insertion iterator to beyond the landingpad instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137872 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:21:31 +00:00
Bill Wendling
0906a7c46c Don't optimize the landing pad exit block. 
One way to exit the loop is through an unwind edge. However, that may involve
splitting the critical edge of the landing pad, which is non-trivial. Prevent
the transformation from rewriting the landing pad exit loop block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137871 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:20:43 +00:00
Bill Wendling
490606e613 Assert that we aren't trying to split the critical edge of a landing pad. Doing 
so requires more care than this generic algorithm should handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137866 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:04:05 +00:00
Jim Grosbach
ef3bf64bf8 Fix predicate for imm1_32 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137865 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 21:01:11 +00:00
Jim Grosbach
5a1cd045cd Thumb assembly parsing and encoding for ADR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137864 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 20:37:40 +00:00
Bill Wendling
c9b2a987a2 Revert r137655. There is some question about whether the 'landingpad' 
instruction should be marked as potentially reading and/or writing memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137863 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 20:36:44 +00:00
Jim Grosbach
4372ca6fe4 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137857 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 19:55:51 +00:00
Jim Grosbach
8884148b8e Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137856 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 19:53:53 +00:00
Bill Wendling
35adbb3e48 Modify for the new EH scheme. 
Things are much saner now. We no longer need to modify the laning pads, because
of the invariants we impose upon them. The only thing DwarfEHPrepare needs to do
is convert the 'resume' instruction into a call to '_Unwind_Resume'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137855 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 19:48:49 +00:00
Eli Friedman
f23d4adbfa Revert r137781; I agree with Duncan's comment that the situation in question is clearly impossible given the current structure of the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137853 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 19:31:49 +00:00
Akira Hatanaka
511961a44c Add support for half-word unaligned loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137848 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 18:49:18 +00:00
Jordy Rose
008a5f515a Static fields require an out-of-line definition. Fix DynamicLibrary for real. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137844 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 18:38:42 +00:00
Owen Anderson
0aa38ab1fb Be more careful in the Thumb decoder hooks to avoid walking off the end of the OpInfo array. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137838 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 18:14:48 +00:00
Eli Friedman
447f95202a Silly mistake from r137777; restore significant isStructTy() checks. While here, be a bit more defensive 
with unknown instructions.

Fixes PR10687.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137836 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 18:10:43 +00:00
Akira Hatanaka
77b85b6474 Move pattern matching for EXT and INS to post-legalization DAGCombine per Bruno's comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137831 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 17:45:08 +00:00
Owen Anderson
83e3f67fb6 Allow the MCDisassembler to return a "soft fail" status code, indicating an instruction that is disassemblable, but invalid. Only used for ARM UNPREDICTABLE instructions at the moment. 
Patch by James Molloy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137830 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 17:44:15 +00:00
Bruno Cardoso Lopes
0e6d230abd Introduce matching patterns for vbroadcast AVX instruction. The idea is to 
match splats in the form (splat (scalar_to_vector (load ...))) whenever
the load can be folded. All the logic and instruction emission is
working but because of PR8156, there are no ways to match loads, cause
they can never be folded for splats. Thus, the tests are XFAILed, but
I've tested and exercised all the logic using a relaxed version for
checking the foldable loads, as if the bug was already fixed. This
should work out of the box once PR8156 gets fixed since MayFoldLoad will
work as expected.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137810 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 02:29:19 +00:00
Bruno Cardoso Lopes
8a5b262e80 Update comments about vector splat handling in x86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137808 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 02:29:13 +00:00
Bruno Cardoso Lopes
fc0a702128 Now that we have a canonical way to handle 256-bit splats: 
vinsertf128 $1 + vpermilps $0, remove the old code that used to first
do the splat in a 128-bit vector and then insert it into a larger one.
This is better because the handling code gets simpler and also makes a
better room for the upcoming vbroadcast!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137807 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 02:29:10 +00:00
Akira Hatanaka
bb15e117d3 Add support for ext and ins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137804 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 02:05:42 +00:00
Jordy Rose
f0813ceeaf Unbork Windows build. Thanks, Francois. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137798 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 00:59:50 +00:00
Jordy Rose
0bce85fbfa Use DynamicLibrary instances as a way to get symbols from a specific library. Preparation for upcoming (preliminary) support for plugins for the static analyzer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137791 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-17 00:29:32 +00:00
Jim Grosbach
89e2aa6afd Thumb ADD(immediate) parsing support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137788 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 23:57:34 +00:00
Owen Anderson
16280308ac Separate out Thumb1 instructions that need an S bit operand from those that do not, for the purposes of decoding them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137787 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 23:45:44 +00:00
Eli Friedman
207634263c Extend the undef ^ undef idiom once more. No testcase: I can't figure out how to actually trigger the codepath in question at the moment, but it might get exposed in the future. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137781 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 22:38:34 +00:00
Jim Grosbach
194bd89829 Thumb parsing diagnostics for low-reg requirements on ADD and MOV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137779 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 22:20:01 +00:00
Devang Patel
94c7ddb6f5 Until now all debug info MDNodes referred to a root MDNode, a compile unit. This simplified handling of these needs in dwarf writer. However, one side effect of this is that during link time optimization all these MDNodes are _not_ uniqued. In other words there will be N number of MDNodes describing "int", "char" and all other types, which would suddenly grow when each object file starts using libraries like STL. 
MDNodes graph structure such that compiler unit keeps track of important MDNodes and update dwarf writer to process mdnodes top-down instead of bottom up.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137778 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 22:09:43 +00:00
Eli Friedman
054ddf799b A bunch of misc fixes to SCCPSolver::ResolvedUndefsIn, including a fix to stop 
making random bad assumptions about instructions which are not explicitly listed.  

Includes fix for rdar://9956541, a version of "undef ^ undef should return
0 because it's easier than arguing with users".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137777 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 22:06:31 +00:00
Jim Grosbach
00c9a51888 Add missing exit for 'case'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137774 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 21:42:31 +00:00
Jim Grosbach
3912b73c74 Thumb assembly parsing and encoding for ADD(register) instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137759 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 21:34:08 +00:00
Bill Wendling
55fdb4eec0 The resume instruction may throw. Return 'true' in this case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137757 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 21:15:50 +00:00
Jim Grosbach
d54b4e612a Move some logic into a helper function and expand the commentary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137756 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 21:12:37 +00:00
Eli Friedman
1fc291f0d3 Minor bug in SCCP found by inspection. (I don't think it's possible to hit this with a normal pass pipeline, but fixing for completeness.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137755 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 21:12:35 +00:00
Jim Grosbach
47a0d52b69 ARM thumb assembly parsing for arithmetic flag setting instructions. 
Thumb one requires that many arithmetic instruction forms have an 'S'
suffix. For Thumb2, the whether the suffix is required or precluded depends
on whether the instruction is in an IT block. Use target parser predicates
to check for these sorts of context-sensitive constraints.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137746 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 20:45:50 +00:00
Bill Wendling
5b6f42f57e Use the getFirstInsertionPt() method instead of getFirstNonPHI + an 'isa<>' 
check for a LandingPadInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137745 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 20:45:24 +00:00
Bill Wendling
d2e103daf8 Add getFirstInsertionPt() method. 
getFirstInsertionPt() returns an iterator to the first insertion point in a
basic block. This is after all PHIs and any other instruction which is required
to be at the top of the basic block (like LandingPadInst).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137744 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 20:42:52 +00:00
Bill Wendling
23b49ba6d5 I think there was some confusion about what I meant. :-) Replacing the comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137743 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 20:41:17 +00:00
Jim Grosbach
1b84cce77f Remove unused Target argument from AsmParser construction methods. 
The argument is unused, and is a layering violation in any case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137735 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 18:33:49 +00:00
Bruno Cardoso Lopes
3b86598cfa Instead of always leaving the work to the generic legalizer when 
there is no support for native 256-bit shuffles, be more smart in some
cases, for example, when you can extract specific 128-bit parts and use
regular 128-bit shuffles for them. Example:

For this shuffle:
  shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32>
                <i32 1, i32 0, i32 7, i32 6>

This was expanded to:
  vextractf128  $1, %ymm1, %xmm2
  vpextrq $0, %xmm2, %rax
  vmovd %rax, %xmm1
  vpextrq $1, %xmm2, %rax
  vmovd %rax, %xmm2
  vpunpcklqdq %xmm1, %xmm2, %xmm1
  vpextrq $0, %xmm0, %rax
  vmovd %rax, %xmm2
  vpextrq $1, %xmm0, %rax
  vmovd %rax, %xmm0
  vpunpcklqdq %xmm2, %xmm0, %xmm0
  vinsertf128 $1, %xmm1, %ymm0, %ymm0
  ret

Now we get:
  vshufpd $1, %xmm0, %xmm0, %xmm0
  vextractf128  $1, %ymm1, %xmm1
  vshufpd $1, %xmm1, %xmm1, %xmm1
  vinsertf128 $1, %xmm1, %ymm0, %ymm0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137733 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 18:21:54 +00:00
Devang Patel
e26a135248 Remove unnecessary version check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137728 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 17:41:41 +00:00
Jim Grosbach
d0d3f7e01f ARM .align NOP padding uses different encoding pre-ARMv6. 
Patch by Kristof Beyls and James Malloy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137723 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 17:06:20 +00:00
Nadav Rotem
6d1f5d951b Revert r137562 because it caused PR10674 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137719 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 14:34:29 +00:00
David Chisnall
7a817eae6c Add a mechanism for optimisation plugins to register passes that all front ends can use without needing to be aware of the plugin (or the plugin be aware of the front end). 
Before 3.0, I'd like to add a mechanism for automatically loading a set of plugins from a config file.  API suggestions welcome...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137717 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 13:58:41 +00:00
Bill Wendling
05d0023a95 A few places where we want to skip the landingpad instruction for insertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137712 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 04:52:55 +00:00
Akira Hatanaka
614051a1c5 Fix handling of double precision loads and stores when Mips1 is targeted. 
Mips1 does not support double precision loads or stores, therefore two single
precision loads or stores must be used in place of these instructions. This 
patch treats double precision loads and stores as if they are legal
instructions until MCInstLowering, instead of generating the single precision
instructions during instruction selection or Prolog/Epilog code insertion.

Without the changes made in this patch, llc produces code that has the same 
problem described in r137484 or bails out when
MipsInstrInfo::storeRegToStackSlot or loadRegFromStackSlot is called before
register allocation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137711 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 03:51:51 +00:00
Akira Hatanaka
8957481e6a Define function MipsMCInstLower::LowerOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137707 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 02:21:03 +00:00
Akira Hatanaka
78d1b11aa5 Add parameter Offset to MipsMCInstLower::LowerSymbolOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137706 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 02:15:03 +00:00
Eli Friedman
2199dfb0e6 Revert a bit of r137667; the logic in question can safely handle atomic load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137702 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 01:28:22 +00:00
Eli Friedman
6437f2c2e2 After talking with Bill, it seems like the LandingPad handling here is likely 
to be wrong (or at least somewhat suspect).  Leave a FIXME for Bill.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137694 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 00:41:37 +00:00
Eli Friedman
33cb445fb6 Minor comment fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137693 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-16 00:20:11 +00:00
Eli Friedman
8176388d65 Update SimplifyCFG for atomic operations. 
This commit includes a mention of the landingpad instruction, but it's not
changing the behavior around it.  I think the current behavior is correct,
though.  Bill, can you double-check that?



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137691 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:59:28 +00:00
Eli Friedman
fd06b3cfa1 Add comments and test for atomic load/store and mem2reg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137690 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:55:52 +00:00
Devang Patel
02e603f87a Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137689 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:47:24 +00:00
Owen Anderson
ef2865a8ea Specify a necessary fixed bit for VLD3DUP, and otherwise rearrange the Thumb2 NEON decoding hooks to bring us closer to correctness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137686 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:38:54 +00:00
Bruno Cardoso Lopes
8400bfe9fa While I'm here, remove the "_alt" hacks to a series of INSERT_SUBREG and 
also add the AVX versions of the 128-bit patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137685 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:36:51 +00:00
Bruno Cardoso Lopes
1deddbbd56 Reorder declarations of vmovmskp* and also put the necessary AVX 
predicate and TB encoding fields. This fix the encoding for the
attached testcase. This fixes PR10625.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137684 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:36:45 +00:00
Devang Patel
3655a21b15 Continue to hoist uses of getCompileUnit() up. The goal is to get rid of uses of getCompileUnit(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137683 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:36:40 +00:00
Bill Wendling
5e38c473a4 In places where it's using "getFirstNonPHI", skip the landingpad instruction if necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137679 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:19:54 +00:00
Jim Grosbach
19cb7f491f MCTargetAsmParser target match predicate support. 
Allow a target assembly parser to do context sensitive constraint checking
on a potential instruction match. This will be used, for example, to handle
Thumb2 IT block parsing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137675 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:03:29 +00:00
Devang Patel
6326a4238d Add a finalize() hook, that'll let DIBuilder construct compile unit lazily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137673 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 23:00:00 +00:00
Bill Wendling
6456a62178 Don't sink the instruction to before a landingpad instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137672 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 22:53:05 +00:00
Devang Patel
d30243402b This is somewhat déjà-vu, but avoid using getCompileUnit() as much as possible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137668 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 22:24:32 +00:00
Eli Friedman
3d30b435e2 Update inter-procedural optimizations for atomic load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137667 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 22:16:46 +00:00
Eli Friedman
cc4a0435b7 Update instcombine for atomic load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137664 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 22:09:40 +00:00
Devang Patel
d0b5a5ece4 Refactor. Variables are part of compile unit so let CompileUnit create new variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137663 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 22:04:40 +00:00
Eli Friedman
c869b4397a Add some comments here because the lack of a check for volatile/atomic here is a bit unusual. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137662 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:56:39 +00:00
Bruno Cardoso Lopes
50b37c7920 Fix PR10656. It's only profitable to use 128-bit inserts and extracts 
when AVX mode is one. Otherwise is just more work for the type
legalizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137661 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:45:54 +00:00
Devang Patel
7a328270be There is no need to maintain a set to keep track of variables that use location expressions. In such cases, AT_location attribute's value will be a label. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137659 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:43:21 +00:00
Devang Patel
c890b19226 Fix warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137658 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:35:16 +00:00
Devang Patel
ff9dd0ac55 Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137656 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:24:36 +00:00
Bill Wendling
9d6070f161 Duncan pointed out that the LandingPadInst might read memory. (It might also 
write to memory.) Marking it as such makes some checks for immobility go away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137655 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:14:31 +00:00
Eli Friedman
0455bb89cd Fix llvm::CloneModule to correctly clone globals. Patch per bug report by Simon Moll on llvmdev. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137654 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:05:06 +00:00
Eli Friedman
e5e771263a Fix predicates methods on Instruction to handle atomic load/store correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137652 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 21:00:18 +00:00
Eli Friedman
667ccf231b Misc analysis passes that need to be aware of atomic load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137650 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:54:19 +00:00
Eli Friedman
97671565ff Atomic load/store support in LICM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137648 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:52:09 +00:00
Owen Anderson
c537f3be0c Enforce the constraint that Rt must be even on LDRD/STRD instructions in ARM mode. Update tests to reflect this fact. 
Patch by James Molloy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137647 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:51:32 +00:00
Owen Anderson
92be8ab6a4 Remove dead classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137643 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:11:11 +00:00
Bill Wendling
187b1924a4 The "landingpad" instruction will never be "trivially" dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137642 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:10:51 +00:00
Owen Anderson
5df7ef6cdb Fix incorrect encoding of UMAAL and friends. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137641 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 20:08:25 +00:00
Devang Patel
5a1a67cd3f Simplify mapping to variable from its abstract variable info. 
When a variable is inlined multiple places, abstract variable keeps name, location, type etc.. info and all other concreate instances of the variable directly refers to abstract variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137637 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 19:01:20 +00:00
Owen Anderson
305e046e53 Fix decoding LDRSB and LDRSH in Thumb1 mode. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137636 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 19:00:06 +00:00
Owen Anderson
7a2e1770ea Fix problems decoding the to/from-lane NEON memory instructions, and add a comprehensive NEON decoding testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137635 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:44:44 +00:00
Devang Patel
a098c506a2 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137632 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:40:16 +00:00
Devang Patel
59bc4093d5 Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137631 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:35:42 +00:00
Bill Wendling
06f20ebfcf Don't try to sink the landingpad instruction. It's immobile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137629 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:23:40 +00:00
Bill Wendling
da005e7d20 The landingpad instruction isn't loop-invariant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137628 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:22:49 +00:00
Bill Wendling
bc4fcbbc7b Mark the SCC as "might unwind" if we run into a 'resume' instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137627 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:22:00 +00:00
Bill Wendling
1178fb4701 Skip the insertion iterator past the landingpad instruction if there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137626 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 18:21:07 +00:00
Devang Patel
6f9d8ffe5e Refactor. Global variables are part of compile unit so let CompileUnit create new global variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 17:57:41 +00:00
Devang Patel
dbc64af76d Refactor. A subprogram is part of compile unit so let CompileUnit construct new subprogram. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137618 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 17:24:54 +00:00
Jim Grosbach
8757a4c6ab Update comment to reflect MC target machine refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137615 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 16:52:24 +00:00
Bill Wendling
fe7a071a19 Add inlining for the new EH scheme. 
This builds off of the current scheme, but instead of llvm.eh.exception and
llvm.eh.selector, it uses the landingpad instruction. And instead of
llvm.eh.resume, it uses the resume instruction.

Because of the invariants in the landing pad instruction, a lot of code that's
currently needed to find the appropriate intrinsic calls for an invoke
instruction won't be needed once we go to the new EH scheme. The "FIXME"s tell
us what to remove after we switch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137576 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-14 08:01:36 +00:00
Nick Lewycky
28b84ff4ce This transform is not safe. Thanks to Eli for pointing that out! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-14 04:51:49 +00:00
Nick Lewycky
7f0170c197 Don't attempt to add 'nsw' when intermediate instructions had no such guarantee. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137572 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-14 03:41:33 +00:00
Nick Lewycky
daf27ea899 Teach instcombine to preserve the nsw bit by doing an after-the-fact analysis 
when combining add and sub instructions. Patch by Pranav Bhandarkar!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137570 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-14 01:45:19 +00:00
NAKAMURA Takumi
2ed7464c09 EE: Provide the symbol "lseek64" explicitly with <unistd.h> on Linux glibc. 
With libcxx, it seems <unistd.h> would not be provided. Thanks to Ryuta Suzuki.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137567 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-14 00:34:04 +00:00
Nadav Rotem
5cbba01671 Fix PR 10635. When generating integer constants, the constant element type may 
be illegal, even if the requested vector type is legal. Testcase is one of the
disabled ARM tests in the vector-select patch.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137562 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-13 20:31:45 +00:00
Bob Wilson
7dcd04abe0 Expand VMOVQQQQ pseudo instructions. 
Apparently we never added code to expand these pseudo instructions, and in
over a year, no one has noticed.  Our register allocator must be awesome!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137551 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-13 05:14:55 +00:00
Nick Lewycky
53b2b73643 Remove the last improper use of getGlobalContext() from LLVM. 
This caused a race condition where a thread calls ~LLVMContextImpl which calls
Module::dropAllReferences which calls begin() on an empty ilist that would
create the sentinel, which racily accesses the global context.

This can not be fixed by locking inside createSentinel because the lock would
need to be shared with all users of the global context, including those that
reside outside LLVM's own code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137546 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-13 01:04:44 +00:00
Eli Friedman
f03bb260c9 Move "atomic" and "volatile" designations on instructions after the opcode 
of the instruction.

Note that this change affects the existing non-atomic load and store
instructions; the parser now accepts both forms, and the change is noted
in the release notes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137527 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 22:50:01 +00:00
Jim Grosbach
10342123ad ARM STR_POST_IMM offset encoding fix in load/store optimizer. 
Tidy up the code a bit and push the definition of the value next to the uses
to try to minimize this sort of issue from arising again while I'm at it.

rdar://9945172


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137525 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 22:20:41 +00:00
Bruno Cardoso Lopes
4002d7e1e6 Fix comment! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137521 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 21:54:42 +00:00
Bruno Cardoso Lopes
53cae1362d The VPERM2F128 is a AVX instruction which permutes between two 256-bit 
vectors. It operates on 128-bit elements instead of regular scalar
types. Recognize shuffles that are suitable for VPERM2F128 and teach
the x86 legalizer how to handle them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137519 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 21:48:26 +00:00
Bruno Cardoso Lopes
fa2f4fd9a2 Move code around and add comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137518 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 21:48:22 +00:00
Akira Hatanaka
5c21c9e78e Define unaligned load and store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137515 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 21:30:06 +00:00
Jim Grosbach
4dfe220ad5 ARM expansion of pre-indexed store pseudos should maintain memoperands. 
Partial fix for rdar://9945172.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137513 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 21:02:34 +00:00
Bill Wendling
746c882538 Add checks for the landingpad instruction's clause values to make sure that 
they're the correct type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137511 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 20:52:25 +00:00
Owen Anderson
0d09499cf3 Fix some remaining issues with decoding ARM-mode memory instructions, and add another batch of tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137502 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 20:36:11 +00:00
Bill Wendling
e6e8826870 Initial commit of the 'landingpad' instruction. 
This implements the 'landingpad' instruction. It's used to indicate that a basic
block is a landing pad. There are several restrictions on its use (see
LangRef.html for more detail). These restrictions allow the exception handling
code to gather the information it needs in a much more sane way.

This patch has the definition, implementation, C interface, parsing, and bitcode
support in it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 20:24:12 +00:00
Owen Anderson
79628e92e1 Fix decoding of ARM-mode STRH. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137499 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 20:02:50 +00:00
Owen Anderson
6368119c25 Specify fixed bit in the LDRBT encoding, which allows us to distinguish it from certain USAT16 encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137494 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 19:41:29 +00:00
Owen Anderson
7cdbf086e4 Fix decoding of pre-indexed stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137487 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:12:39 +00:00
Devang Patel
cd9f6c53de Use ArrayRef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137485 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:10:19 +00:00
Akira Hatanaka
0285e7d1c1 When constant double 0.0 is lowered, make sure 0 is copied directly from an 
integer register to a floating point register. It is not valid to interpret
the value of a floating pointer register as part of a double precision
floating point value after a single precision floating point computational
or move instruction stores its result to the register.

- In the test case, the following code is generated before this patch is
  applied:
mtc1  $zero, $f2    ; unformatted copy to $f2
mov.s $f0, $f2      ; $f0 is in single format
sdc1  $f12, 0($sp)
mov.s $f1, $f2      ; $f1 is in single format
c.eq.d  $f12, $f0   ; $f0 cannot be interpreted as double

- The following code is generated after this patch is applied:
mtc1  $zero, $f0    ; unformatted copy to $f0
mtc1  $zero, $f1    ; unformatted copy to $f1
c.eq.d  $f12, $f0   ; $f0 can be interpreted as double

Bhanu Chetlapalli and Chris Dearman at MIPS technologies reported this bug and
provided the test case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137484 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:09:59 +00:00
Chris Lattner
d95f8f6ada add ifdef's to let people easily remove these dead api for testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137483 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:08:19 +00:00
Chris Lattner
1bcbf8582e switch to the new struct api. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137482 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:07:26 +00:00
Chris Lattner
c4d0e9fbdd switch to the new struct apis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137481 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:07:07 +00:00
Chris Lattner
3ebb64946b switch to use the new api for structtypes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137480 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:06:37 +00:00
Chris Lattner
8dcfc74af4 forward to the correct constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137479 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:03:30 +00:00
Devang Patel
2e85b1bfa7 Provide fast path as Jakob suggested. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137478 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 18:01:34 +00:00
Owen Anderson
3f3570a38b Separate decoding for STREXD and LDREXD to make each work better. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137476 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 17:58:32 +00:00
Chris Lattner
f4bbcaabeb add two missing function impls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137470 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 17:43:05 +00:00
Chris Lattner
2c38d65fd9 add new accessors to reflect new terminology in struct types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137468 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 17:31:02 +00:00
Nadav Rotem
c796ae1d68 Revert r137310 because it does not optimize any code on ToT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137466 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 17:15:04 +00:00
Chad Rosier
0871221c25 Whitespace and formatting. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137463 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 16:45:18 +00:00
Duncan Sands
1f6a329f79 Silence a bunch (but not all) "variable written but not read" warnings 
when building with assertions disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137460 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 14:54:45 +00:00
Benjamin Kramer
0d46ccfc5c MachOWriter: Don't crash on fixups with arithmetic, emit a relocation instead. This matches what as does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137414 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 01:51:29 +00:00
Andrew Trick
32a183c84a findDeadCallerSavedReg fix: Missing NULL terminator in register arrays. 
Fix by Ivan Baev. Sorry I don't have a unit test, but the fix is obvious so I don't want to delay it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137404 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 00:49:19 +00:00
Dan Gohman
126a54f1fa Don't convert objc_autoreleaseReturnValue to objc_autorelease if the result 
is returned through a bitcast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137402 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 00:36:31 +00:00
Dan Gohman
a7f7db2ebd Don't let arbitrary calls disrupt nested retain+release pairs if 
the retains and releases all use the same SSA pointer value.

Also, don't let CFG hazards disrupt nested retain+release pair
optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137399 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 00:26:31 +00:00
Dan Gohman
d8e48c4821 Use an actual reverse-CFG reverse-postorder for the bottom-up traversal, 
rather than plain postorder, so that CFG constructs like single-exit loops
are reliably visited in a sensible order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137398 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 00:24:29 +00:00
Jakob Stoklund Olesen
9b7ff12dd1 Simplify the interference checking code a bit. 
This is possible now that we now longer provide an interface to iterate
the interference overlaps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137397 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-12 00:22:04 +00:00
Jim Grosbach
857e1a7b3f ARM vector compare to zero instruction assembly parsing support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137389 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 23:51:13 +00:00
Andrew Trick
b1831c6640 Allow loop unrolling to get known trip counts from ScalarEvolution. 
SCEV unrolling can unroll loops with arbitrary induction variables. It
is a prerequisite for -disable-iv-rewrite performance. It is also
easily handles loops of arbitrary structure including multiple exits
and is generally more robust.

This is under a temporary option to avoid affecting default
behavior for the next couple of weeks. It is needed so that I can
checkin unit tests for updateUnloop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137384 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 23:36:16 +00:00
Jakob Stoklund Olesen
8facc7def8 Remove the InterferenceResult class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137381 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:46:06 +00:00
Jakob Stoklund Olesen
fe026e1829 Eliminate the last use of InterferenceResult. 
The Query class now holds two iterators instead of an InterferenceResult
instance. The iterators are used as bookmarks for repeated
collectInterferingVRegs calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137380 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:46:04 +00:00
Akira Hatanaka
9029cf20e1 Enclose directive .cprestore with .set macro and nomacro to silence assembler 
warning. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137378 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:42:31 +00:00
Jim Grosbach
d30970fb6c Remove no-longer-true comments. These are for the assembler, also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137375 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:30:30 +00:00
Jim Grosbach
342ebd5f38 ARM STRT assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137372 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:18:00 +00:00
Owen Anderson
41ff834e91 Make the USAT16 operand decoder auto-generate-able. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137371 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:10:11 +00:00
Owen Anderson
adf2b094cb Add another accidentally omitted predicate operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137370 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:08:38 +00:00
Owen Anderson
1fb6673bc2 Add missing predicate operand on SMLA and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137368 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:05:38 +00:00
Jim Grosbach
dd32ba337a ARM load shifted register pre-index fix shift value asm parser encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137367 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 22:05:09 +00:00
Owen Anderson
796d6b7602 Handle new register classes in Thumb2 mode. Should fix the ARM buildbots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137364 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:52:38 +00:00
Owen Anderson
05b0c9f41e Making SEL decodings auto-generate-able. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137363 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:50:56 +00:00
Bruno Cardoso Lopes
ef8d6999f3 Add a dag combine to xform 256-bit shuffles into simple vector 
inserts and extracts. This simple combine makes us generate only 1
instruction instead of 11 in the v8 case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137362 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:50:44 +00:00
Jim Grosbach
89958d50c3 Tidy up comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137359 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:41:59 +00:00
Owen Anderson
cbfc044acd Fix decoding support for STREXD and LDREXD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137356 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:34:58 +00:00
Jakob Stoklund Olesen
9942ba9c0e Remove more dead code. 
collectInterferingVRegs will be the primary function for interference
checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137354 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:18:34 +00:00
Jim Grosbach
7b8f46cf9e ARM STRH assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137353 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:17:22 +00:00
Dan Gohman
fa7eed1f8e Fix typos in comments, and delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137352 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:06:32 +00:00
Akira Hatanaka
1f8d822023 Add isIndirectBranch flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137351 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:05:37 +00:00
Jakob Stoklund Olesen
98985f959c Privatize an unused part of the LiveIntervalUnion::Query interface. 
No clients are iterating over interference overlaps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137350 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 21:00:42 +00:00
Owen Anderson
508e1d3db5 Fix decoding for indexed STRB and LDRB. Fixes <rdar://problem/9926161>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137347 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:47:56 +00:00
Jakob Stoklund Olesen
bb688cec09 Remove some dead code. 
The InterferenceResult iterator turned out to be less important than we
thought it would be.  LiveIntervalUnion clients want higher level
information, like the list of interfering virtual registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137346 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:41:41 +00:00
Jim Grosbach
45251b3707 Tidy up. Remove unused template parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137345 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:41:13 +00:00
Owen Anderson
9fe72bcd37 Improve operand validation for Thumb2 addressing modes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137344 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:40:40 +00:00
Jim Grosbach
14605d1a67 ARM STRD assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137342 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:28:23 +00:00
Andrew Trick
c12d9b9dfb Fix for LoopInfo::updateUnloop. Remove subloop blocks from former 
ancestor loops.

I have a unit test that depends on scev-unroll, which unfortunately
isn't checked in. But I will check it in when I can.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137341 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:27:32 +00:00
Owen Anderson
26d2f0ac91 Continue to tighten decoding by performing more operand validation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137340 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:21:46 +00:00
Jim Grosbach
ade7d00f5a Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137339 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:13:35 +00:00
Jim Grosbach
10348e70d5 ARM STRBT assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137337 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 20:04:56 +00:00
Jim Grosbach
548340c4bf ARM STR(immediate) assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137331 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 19:22:40 +00:00
Owen Anderson
71156a6e00 Tighten decoding of addrmode2 instructions to reject more UNPREDICTABLE cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137325 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 19:00:18 +00:00
Bruno Cardoso Lopes
59353b436a Fix PR10492 by teaching MOVHLPS and MOVLPS mask matching to be more strict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137324 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:59:13 +00:00
Owen Anderson
2b7b238e84 Tighten operand decoding of addrmode2 instruction. The offset register cannot be PC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137323 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:55:42 +00:00
Owen Anderson
3dac0bec7e Correct immediate range for shifter operands. Patch by James Molloy, with additional encoding fixes added by me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137322 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:41:59 +00:00
Benjamin Kramer
0fa5e053a9 Plug a memory leak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137321 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:39:28 +00:00
Owen Anderson
ae0bc5deaa Improve error checking in the new ARM disassembler. Patch by James Molloy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137320 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:24:51 +00:00
Jim Grosbach
f6713916fb ARM push of a single register encodes as pre-indexed STR. 
Per the ARM ARM, a 'push' of a single register encodes as an STR,
not an STM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137318 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 18:07:11 +00:00
Andrew Trick
5c1ff1f2f2 Cleanup. Another thorough review by Nick! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137317 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 17:54:58 +00:00
Jim Grosbach
f8fce711e8 ARM pop of a single register encodes as post-indexed LDR. 
Per the ARM ARM, a 'pop' of a single register encodes as an LDR,
not an LDM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137316 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 17:35:48 +00:00
Nadav Rotem
6236f7f2b6 Add a comment, per Bruno's CR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137313 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 17:05:47 +00:00
Nadav Rotem
f80a894bf0 [AVX] When joining two XMM registers into a YMM register, make sure that the 
lower XMM register gets in first. This will allow the SUBREG pattern to
elliminate the first vector insertion. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137310 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 16:49:36 +00:00
Nadav Rotem
5e742a3e1b [AVX] If the data which is going to be saved is already in two XMM registers 
(for example, after integer operation), do not pack the registers into a YMM
before saving. Its better to save as two XMM registers.

Before:
                vinsertf128         $1, %xmm3, %ymm0, %ymm3
                vinsertf128         $0, %xmm1, %ymm3, %ymm1
                vmovaps              %ymm1, 416(%rsp)

After:
                vmovaps              %xmm3, 416+16(%rsp)
                vmovaps              %xmm1, 416(%rsp)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137308 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 16:41:21 +00:00
Chris Lattner
f4ea68fa5a fix PR10605 / rdar://9930964 by adding a pretty scary missed check. 
It's somewhat surprising anything works without this.  Before we would
compile the testcase into:

test:                                   # @test
	movl	$4, 8(%rdi)
	movl	8(%rdi), %eax
	orl	%esi, %eax
	cmpl	$32, %edx
	movl	%eax, -4(%rsp)          # 4-byte Spill
	je	.LBB0_2

now we produce:

test:                                   # @test
	movl	8(%rdi), %eax
	movl	$4, 8(%rdi)
	orl	%esi, %eax
	cmpl	$32, %edx
	movl	%eax, -4(%rsp)          # 4-byte Spill
	je	.LBB0_2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137303 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 06:26:54 +00:00
Bruno Cardoso Lopes
b02c0ace20 Cleanup: Remove Int_ CVTSS2SI* forms 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137297 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 02:52:36 +00:00
Bruno Cardoso Lopes
5f1d8abf75 Splats for v8i32/v8f32 can be handled by VPERMILPSY. This was causing 
infinite recursive calls in legalize. Fix PR10562

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137296 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 02:49:44 +00:00
Bruno Cardoso Lopes
a5134a0ea3 Use the splat index to generate the desired shuffle. Otherwise we 
could only get undefs and the vector shuffle becomes an undef,
generating wrong code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137295 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 02:49:41 +00:00
Eli Friedman
586272d67c Fix X86TargetLowering::LowerExternalSymbol so that it actually works in non-trivial cases. This hasn't been an issue before because the function isn't normally called (but apparently is used to generate a tail-call to sin() on ELF x86-32 with PIC and SSE2). 
Fixes PR9693.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137292 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-11 01:48:05 +00:00
Devang Patel
5bc942cc3c Stay within 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137283 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 23:58:09 +00:00
Jim Grosbach
59999264e6 ARM LDRT assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137282 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 23:43:54 +00:00
Jim Grosbach
e15defc56c Tidy up. 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137277 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 23:23:47 +00:00
Andrew Trick
fb62b8deb3 Reapplying r136844. 
An algorithm for incrementally updating LoopInfo within a
LoopPassManager. The incremental update should be extremely cheap in
most cases and can be used in places where it's not feasible to
regenerate the entire loop forest.

- "Unloop" is a node in the loop tree whose last backedge has been removed.
- Perform reverse dataflow on the block inside Unloop to propagate the
  nearest loop from the block's successors.
- For reducible CFG, each block in unloop is visited exactly
  once. This is because unloop no longer has a backedge and blocks
  within subloops don't change parents.
- Immediate subloops are summarized by the nearest loop reachable from
  their exits or exits within nested subloops.
- At completion the unloop blocks each have a new parent loop, and
  each immediate subloop has a new parent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137276 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 23:22:57 +00:00
Jim Grosbach
623a454b0f ARM LDRH(immediate) assembly parsing and encoding support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137260 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 22:42:16 +00:00
Jim Grosbach
251bf25e7e ARM LDRD(register) assembly parsing and encoding. 
Add support for literal encoding of #-0 along the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137254 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 21:56:18 +00:00
Devang Patel
b549bcfe6c Distinguish between two copies of one inlined variable. Take 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137253 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 21:50:54 +00:00
Devang Patel
c722c3d5ff While extending definition range of a debug variable, consult lexical scopes also. There is no point extending debug variable out side its lexical block. This provides 6x compile time speedup in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137250 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 21:25:34 +00:00
Devang Patel
9ce256421a Revert unintentional parts of previous check-in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137249 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 21:16:49 +00:00
Devang Patel
bf47fdb91c Start using LexicalScopes utility. No intetional functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137246 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 20:55:27 +00:00
Jim Grosbach
53642c5335 Fix typo. Not quite sure how that slipped in there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137245 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-10 20:49:18 +00:00