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75364 Commits

Author SHA1 Message Date
Jim Grosbach af8c3cc710 Thumb2 parsing and encoding for ADC(register). 
Also add instruction aliases for non-.w versions of SBC since they're the
same.

llvm-svn: 138871
 2011-08-31 18:23:08 +00:00
Devang Patel df060bc3c2 After r138010, subroutine type does not have context info. Update type verifier accordingly. 
This fixes ptype.exp gdb testsuite regressions.

llvm-svn: 138869
 2011-08-31 18:04:31 +00:00
Eli Friedman 1ccecbb9d3 64-bit atomic cmpxchg for ARM. 
llvm-svn: 138868
 2011-08-31 17:52:22 +00:00
Akira Hatanaka 1fcf140ae3 Fix typo. Patch by Liu. 
llvm-svn: 138866
 2011-08-31 17:49:04 +00:00
David Greene cdef71f4f3 Compress Repeated Byte Output 
Emit a repeated sequence of bytes using .zero.  This saves an enormous
amount of asm file space for certain programs.

llvm-svn: 138864
 2011-08-31 17:30:56 +00:00
Jim Grosbach 6d606fbe14 Tweak Thumb1 ADD encoding selection a bit. 
When the destination register of an add immediate instruction is
explicitly specified, encoding T1 is preferred, else encoding T2 is
preferred.

llvm-svn: 138862
 2011-08-31 17:07:33 +00:00
Jakob Stoklund Olesen cd893390f5 Put VMOVS widening under a command line option, off by default. 
It appears that our use of the imp-use and imp-def flags with
sub-registers is not yet robust enough to support this.

The failing test case is complicated, I am working on a reduction.

<rdar://problem/10044201>

llvm-svn: 138861
 2011-08-31 17:00:02 +00:00
Benjamin Kramer 5247ca0ae5 This test requires sse, otherwise x87 ops will block tailcall optimization 
llvm-svn: 138859
 2011-08-31 16:49:05 +00:00
Rafael Espindola 6e31dfea35 Spelling and grammar fixes to problems found by Duncan. 
llvm-svn: 138858
 2011-08-31 16:43:33 +00:00
Eli Friedman 635d9692b6 Make sure we don't crash when -miphoneos-version-min is specified on x86. Hopefully this will fix gcc testsuite failures. 
llvm-svn: 138856
 2011-08-31 16:19:51 +00:00
Eric Christopher 72d1d5e193 Rework this conditional a bit. 
Patch by Sanjoy Das

llvm-svn: 138853
 2011-08-31 04:17:21 +00:00
NAKAMURA Takumi 93f3082118 lit: Normalize pathsep slashes also on %T. 
On Python-w32 with mingw msys bash, %T was replaced to "x:\foo\bar...". msys bash cannot handle DOSish paths.

llvm-svn: 138852
 2011-08-31 03:56:17 +00:00
Bruno Cardoso Lopes 9fc6b8be03 - Move all MOVSS and MOVSD patterns close to their definitions 
- Duplicate some store patterns to their AVX forms!
- Catched a bug while restricting the patterns subtarget, fix it
  and update a testcase to check it properly

llvm-svn: 138851
 2011-08-31 03:04:20 +00:00
Bruno Cardoso Lopes aa1daa63da Remove unnecessary AVX checks 
llvm-svn: 138850
 2011-08-31 03:04:14 +00:00
Bruno Cardoso Lopes db520db514 Teach more places to use VMOVAPS,VMOVUPS instead of MOVAPS,MOVUPS, 
whenever AVX is enabled.

llvm-svn: 138849
 2011-08-31 03:04:09 +00:00
Evan Cheng cb1e5bae4c Fix (movhps load) lowering / pattern to match more cases. rdar://10050549 
llvm-svn: 138848
 2011-08-31 02:05:24 +00:00
Eli Friedman 2c7bb52f56 Some minor cleanups for r138845. 
llvm-svn: 138846
 2011-08-31 00:41:05 +00:00
Eli Friedman c3f9c4a852 Some 64-bit atomic operations on ARM. 64-bit cmpxchg coming next. 
llvm-svn: 138845
 2011-08-31 00:31:29 +00:00
Benjamin Kramer 50cabb5de4 Fix test typo. 
llvm-svn: 138843
 2011-08-31 00:02:59 +00:00
Rafael Espindola a45c20b049 Remove the old tail duplication pass. It is not used and is unable to update 
ssa, so it has to be run really early in the pipeline. Any replacement
should probably use the SSAUpdater.

llvm-svn: 138841
 2011-08-30 23:03:45 +00:00
Owen Anderson 2fa06a7226 Fix issues with disassembly of IT instructions involving condition codes other the EQ/NE. Discovered by roundtrip testing. 
llvm-svn: 138840
 2011-08-30 22:58:27 +00:00
Owen Anderson fdf3cd7f2b Fix encoding of CBZ/CBNZ Thumb2 instructions with immediate offsets rather than labels. 
llvm-svn: 138837
 2011-08-30 22:15:17 +00:00
Benjamin Kramer 58298f028c Teach macho-dump to dump the uleb128s referred to by linkedit_data segments. 
llvm-svn: 138836
 2011-08-30 22:10:58 +00:00
Owen Anderson d16fb43b1f Fix encoding of PC-relative Thumb1 LDR's when using immediate offsets instead of labels. 
llvm-svn: 138835
 2011-08-30 22:10:03 +00:00
Owen Anderson 543c89fb15 Fix encoding of Thumb1 B instructions with immediate offsets, which is necessary for round-tripping. 
llvm-svn: 138834
 2011-08-30 22:03:20 +00:00
Owen Anderson 1732c2ebf6 Clean up whitespace. 
llvm-svn: 138833
 2011-08-30 21:58:18 +00:00
Bill Wendling 6470e07e20 Fix off-by-one error Benjamin noticed. 
llvm-svn: 138832
 2011-08-30 21:23:24 +00:00
Rafael Espindola 1450f61e8f Add a triple. 
llvm-svn: 138831
 2011-08-30 21:19:37 +00:00
Owen Anderson b359367a3d Remove empty file. 
llvm-svn: 138830
 2011-08-30 21:17:20 +00:00
Owen Anderson e316e5b2ad Speculatively revert r138809 in an attempt to fix DragonEgg. 
llvm-svn: 138829
 2011-08-30 21:11:06 +00:00
Bill Wendling 7a9c3033a4 Enable compact unwind info by default. This only applies to Darwin when CFI is 
disabled.

llvm-svn: 138826
 2011-08-30 20:54:11 +00:00
Jeffrey Yasskin 065c35726f 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.

llvm-svn: 138825
 2011-08-30 20:53:29 +00:00
Rafael Espindola f3458e5594 Preliminary documentation in docs/SegmentedStacks.html. 
llvm-svn: 138823
 2011-08-30 20:25:49 +00:00
Owen Anderson 2e282257ed Port Thumb2 assembler tests over to disassembler tests. 
llvm-svn: 138822
 2011-08-30 20:03:11 +00:00
Rafael Espindola 9f2edc8d2c Some test code to check if correct code is being generated. 
Patch by Sanjoy Das.

llvm-svn: 138820
 2011-08-30 19:51:29 +00:00
Nicolas Geoffray e031097177 The code model of JIT should default to JITDefault. 
llvm-svn: 138819
 2011-08-30 19:50:33 +00:00
Rafael Espindola 94d3253626 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.

llvm-svn: 138818
 2011-08-30 19:47:04 +00:00
Rafael Espindola 3353017668 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.

llvm-svn: 138814
 2011-08-30 19:43:21 +00:00
Rafael Espindola c21742112b 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.

llvm-svn: 138812
 2011-08-30 19:39:58 +00:00
Rafael Espindola ddc0f8779e Command line option to enable support for segmented stacks: 
-segmented-stacks.
Patch by Sanjoy Das!

llvm-svn: 138811
 2011-08-30 19:29:02 +00:00
Evan Cheng e6fba77971 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.

llvm-svn: 138810
 2011-08-30 19:09:48 +00:00
Owen Anderson d708ec4c6a 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. 
llvm-svn: 138809
 2011-08-30 18:51:55 +00:00
Benjamin Kramer 267a6d92fa Teach macho-dump how to dump linkedit_data load commands. 
llvm-svn: 138807
 2011-08-30 18:33:37 +00:00
Benjamin Kramer a338996629 Add load commands from Lion to Macho.h. 
llvm-svn: 138806
 2011-08-30 18:33:34 +00:00
Tobias Grosser e8f2009f27 Update docs: Bugpoint understands -O[123] 
Eli added this in revision 132695.

llvm-svn: 138805
 2011-08-30 18:26:11 +00:00
Andrew Trick d74c19449e Lit option for ignoring stderr output. 
This is useful for testing a build a temporarily hand instrumented
build.
Patch by arrowdodger!

llvm-svn: 138804
 2011-08-30 17:42:33 +00:00
Roman Divacky 71038e7021 Set CR1EQ only when lowering vararg floating arguments (not any vararg 
arguments as before), unset CR1EQ otherwise.

llvm-svn: 138802
 2011-08-30 17:04:16 +00:00
James Molloy 87cec4d172 Fix typos in SPUMCTargetDesc.h 
Patch supplied by Liu (projlc@gmail.com)

llvm-svn: 138799
 2011-08-30 07:27:02 +00:00
James Molloy 02ad655446 Fix typo in BlackfinFrameLowering.h 
Patch supplied by Liu (projlc@gmail.com)

llvm-svn: 138798
 2011-08-30 07:26:11 +00:00
James Molloy 9668f2d775 Fix typo in MSP430MCTargetDesc.h. 
Patch supplied by Liu (projlc@gmail.com)

llvm-svn: 138797
 2011-08-30 07:24:47 +00:00