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Author SHA1 Message Date
Owen Anderson
21df36c57a Fix encoding of CBZ/CBNZ Thumb2 instructions with immediate offsets rather than labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138837 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 22:15:17 +00:00
Benjamin Kramer
d4522460d4 Teach macho-dump to dump the uleb128s referred to by linkedit_data segments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138836 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 22:10:58 +00:00
Owen Anderson
a7710edd98 Fix encoding of PC-relative Thumb1 LDR's when using immediate offsets instead of labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138835 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 22:10:03 +00:00
Owen Anderson
391ac65377 Fix encoding of Thumb1 B instructions with immediate offsets, which is necessary for round-tripping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138834 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 22:03:20 +00:00
Owen Anderson
10096dbdef Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138833 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 21:58:18 +00:00
Bill Wendling
e716124feb Fix off-by-one error Benjamin noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138832 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 21:23:24 +00:00
Rafael Espindola
6cac2025da Add a triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138831 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 21:19:37 +00:00
Owen Anderson
1333abc785 Remove empty file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138830 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 21:17:20 +00:00
Owen Anderson
54c4735db3 Speculatively revert r138809 in an attempt to fix DragonEgg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138829 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 21:11:06 +00:00
Bill Wendling
011a8e1684 Enable compact unwind info by default. This only applies to Darwin when CFI is 
disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138826 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 20:54:11 +00:00
Jeffrey Yasskin
cda2a146d1 Fix C++0x narrowing errors when char is unsigned. 
In the case of EDInstInfo, this would actually cause a bug when -1 became 255
and was then compared >=0 in llvm-mc/Disassembler.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138825 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 20:53:29 +00:00
Rafael Espindola
2ac6b01854 Preliminary documentation in docs/SegmentedStacks.html. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138823 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 20:25:49 +00:00
Owen Anderson
3318d9c27d Port Thumb2 assembler tests over to disassembler tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138822 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 20:03:11 +00:00
Rafael Espindola
b0bf8935ee Some test code to check if correct code is being generated. 
Patch by Sanjoy Das.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138820 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:51:29 +00:00
Nicolas Geoffray
5af214fef0 The code model of JIT should default to JITDefault. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138819 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:50:33 +00:00
Rafael Espindola
151ab3e2f7 Adds support for variable sized allocas. For a variable sized alloca, 
code is inserted to first check if the current stacklet has enough
space. If so, space is allocated by simply decrementing the stack
pointer. Otherwise a runtime routine (__morestack_allocate_stack_space
in libgcc) is called which allocates the required memory from the
heap.

Patch by Sanjoy Das.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138818 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:47:04 +00:00
Rafael Espindola
d07b7ec772 Adds a SelectionDAG node X86SegAlloca which will be custom lowered 
from DYNAMIC_STACKALLOC.

Two new pseudo instructions (SEG_ALLOCA_32 and SEG_ALLOCA_64) which
will match X86SegAlloca (based on word size) are also added.  They
will be custom emitted to inject the actual stack handling code.

Patch by Sanjoy Das.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138814 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:43:21 +00:00
Rafael Espindola
76927d7586 Emit segmented-stack specific code into function prologues for 
X86. Modify the pass added in the previous patch to call this new
code.

This new prologues generated will call a libgcc routine (__morestack)
to allocate more stack space from the heap when required

Patch by Sanjoy Das.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138812 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:39:58 +00:00
Rafael Espindola
0f9827cd94 Command line option to enable support for segmented stacks: 
-segmented-stacks.
Patch by Sanjoy Das!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138811 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:29:02 +00:00
Evan Cheng
37fefc20d3 Follow up to r138791. 
Add a instruction flag: hasPostISelHook which tells the pre-RA scheduler to
call a target hook to adjust the instruction. For ARM, this is used to
adjust instructions which may be setting the 's' flag. ADC, SBC, RSB, and RSC
instructions have implicit def of CPSR (required since it now uses CPSR physical
register dependency rather than "glue"). If the carry flag is used, then the
target hook will *fill in* the optional operand with CPSR. Otherwise, the hook
will remove the CPSR implicit def from the MachineInstr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138810 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 19:09:48 +00:00
Owen Anderson
6e4be237b0 When walking backwards to eliminate final stores to allocas at the end of a function, encountering an unrelated store should not cause us to give up like encountering a load does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138809 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 18:51:55 +00:00
Benjamin Kramer
9942acab0a Teach macho-dump how to dump linkedit_data load commands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138807 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 18:33:37 +00:00
Benjamin Kramer
bc6b89ed31 Add load commands from Lion to Macho.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138806 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 18:33:34 +00:00
Tobias Grosser
d36d2db62a Update docs: Bugpoint understands -O[123] 
Eli added this in revision 132695.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138805 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 18:26:11 +00:00
Andrew Trick
7c12837916 Lit option for ignoring stderr output. 
This is useful for testing a build a temporarily hand instrumented
build.
Patch by arrowdodger!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138804 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 17:42:33 +00:00
Roman Divacky
0aaa9195b5 Set CR1EQ only when lowering vararg floating arguments (not any vararg 
arguments as before), unset CR1EQ otherwise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138802 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 17:04:16 +00:00
James Molloy
e7815c22fc Fix typos in SPUMCTargetDesc.h 
Patch supplied by Liu (projlc@gmail.com)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138799 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 07:27:02 +00:00
James Molloy
7e14b240a8 Fix typo in BlackfinFrameLowering.h 
Patch supplied by Liu (projlc@gmail.com)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138798 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 07:26:11 +00:00
James Molloy
4d8af4ee6e Fix typo in MSP430MCTargetDesc.h. 
Patch supplied by Liu (projlc@gmail.com)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138797 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 07:24:47 +00:00
James Molloy
afaf80a13b Fix typo in MipsMCTargetDesc.h; Patch supplied by Liu (proljc@gmail.com) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138796 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 07:23:29 +00:00
Craig Topper
3daa5c29d4 Add vvvv support to disassembling of instructions with MRMDestMem and MRMDestReg form. Needed to support mem dest form of vmaskmovps/d. Fixes PR10807. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138795 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 07:09:35 +00:00
Bob Wilson
e497906e87 Do not try to rematerialize a value from a partial definition. 
I don't currently have a good testcase for this; will try to get one
tomorrow.  <rdar://problem/10032939>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138794 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 05:36:02 +00:00
Evan Cheng
342e3161d9 Change ARM / Thumb2 addc / adde and subc / sube modeling to use physical 
register dependency (rather than glue them together). This is general
goodness as it gives scheduler more freedom. However it is motivated by
a nasty bug in isel.

When a i64 sub is expanded to subc + sube.
  libcall #1
     \
      \        subc 
       \       /  \
        \     /    \
         \   /    libcall #2
          sube

If the libcalls are not serialized (i.e. both have chains which are dag
entry), legalizer can serialize them in arbitrary orders. If it's
unlucky, it can force libcall #2 before libcall #1 in the above case.

  subc
   |
  libcall #2
   |
  libcall #1
   |
  sube

However since subc and sube are "glued" together, this ends up being a
cycle when the scheduler combine subc and sube as a single scheduling
unit.

The right solution is to fix LegalizeType too chains the libcalls together.
However, LegalizeType is not processing nodes in order so that's harder than
it should be. For now, the move to physical register dependency will do.

rdar://10019576


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138791 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-30 01:34:54 +00:00
Jim Grosbach
d3765189bf Revert 138781. It's not playing nicely with the immediate forms for ADC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138782 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 23:24:15 +00:00
Jim Grosbach
e94a5b1218 Thumb2 assembler aliases for ADC/SBC w/o the .w suffix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138781 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 23:20:54 +00:00
Owen Anderson
694e0ffb8a Add missing encoding information for some of the GPR<->FP register moves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138780 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 23:15:25 +00:00
Jim Grosbach
abd3f60859 Remove redundant tests from XFAIL'ed test file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138779 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 23:04:04 +00:00
Jim Grosbach
a01e12499f Thumb2 assembly parsing and encoding support for ADC(immediate). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138778 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 23:01:38 +00:00
Jim Grosbach
056cb4c0f6 Remove test file. Superceded by other more exhaustive tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138777 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 23:00:19 +00:00
Jim Grosbach
f8e1e3e729 Thumb2 parsing and encoding for IT blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138773 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 22:24:09 +00:00
Kevin Enderby
fff64ca9cf Fix the disassembly of the X86 crc32 instruction. Bug 10702 and rdar://8795217 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138771 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 22:06:28 +00:00
Eli Friedman
f3704769bb Explicitly zero out parts of a vector which are required to be zero by the algorithm in LowerUINT_TO_FP_i32. This only has a substantial effect on the generated code when the input is extracted from a vector register; other ways of loading an i32 do the appropriate zeroing implicitly. Fixes PR10802. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138768 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 21:15:46 +00:00
Jim Grosbach
d33b276bcb Tidy up. Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138767 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 21:15:20 +00:00
Owen Anderson
acb274baac Apply the same fix for the change in LDR_PRE_IMM/LDRB_PRE_IMM operand encodings to the load-store optimizer that I applied to the instruction selector in r138758. Fixes ary3 from the nightly test suite. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138766 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 21:14:19 +00:00
Bill Wendling
8e5cf90923 Fix grammar, noticed by Duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138764 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 21:03:12 +00:00
Owen Anderson
1f26758510 Specify an additional fixed bit in the PLD/PLDW/PLI register-register encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138760 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 20:42:00 +00:00
Bill Wendling
6af6824eb4 Update tests to new EH model. Add landingpad instructions to landing pads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138759 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 20:39:23 +00:00
Owen Anderson
c4e16de765 addrmode_imm12 and addrmode2_offset encode their immediate values differently. Update the manual instruction selection code that was encoding them the addrmode2 way even though LDR_PRE_IMM/LDRB_PRE_IMM had switched to addrmode_imm12. Should fix a number of nightly test failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138758 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 20:16:50 +00:00
Nadav Rotem
89879ec76b Fixes following the CR by Chris and Duncan: 
Optimize chained bitcasts of the form A->B->A.
Undo r138722 and change isEliminableCastPair to allow this case.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138756 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 19:58:36 +00:00
Owen Anderson
0da10cf44d Improve handling of #-0 offsets for many more pre-indexed addressing modes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138754 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-29 19:36:44 +00:00