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6f036da8dc
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14964 Commits

Author SHA1 Message Date
Jim Grosbach
6f036da8dc Enable ARM base register reuse to local stack slot allocation. Whenever a new 
frame index reference to an object in the local block is seen, check if
it's near enough to any previously allocaated base register to re-use.

rdar://8277890

llvm-svn: 111443
 2010-08-18 22:44:49 +00:00
Bill Wendling
d4fd98ebda Minor simplification. Gets rid of a needless temporary. 
llvm-svn: 111430
 2010-08-18 21:32:07 +00:00
Bill Wendling
fa83b9853e Marked with ATTRIBUTE_USED so that clang doesn't complain. 
llvm-svn: 111383
 2010-08-18 18:40:57 +00:00
Jim Grosbach
b517fe948f Add hook for re-using virtual base registers for local stack slot access. 
Nothing fancy, just ask the target if any currently available base reg
is in range for the instruction under consideration and use the first one
that is. Placeholder ARM implementation simply returns false for now.

ongoing saga of rdar://8277890

llvm-svn: 111374
 2010-08-18 17:57:37 +00:00
Kalle Raiskila
05d3cc2ef8 Fix a bug with insertelement on SPU. 
The previous algorithm in LowerVECTOR_SHUFFLE 
didn't check all requirements for "monotonic" shuffles.

llvm-svn: 111361
 2010-08-18 10:20:29 +00:00
Kalle Raiskila
8b6f5df4ae Remove all traces of v2[i,f]32 on SPU. 
The "half vectors" are now widened to full size by the legalizer.
The only exception is in parameter passing, where half vectors are 
expanded. This causes changes to some dejagnu tests.

llvm-svn: 111360
 2010-08-18 10:04:39 +00:00
Kalle Raiskila
0ee13a45c8 Change SPU C calling convention to match that described in 
"SPU Application Binary Interface Specification, v1.9" by
IBM. 
Specifically: use r3-r74 to pass parameters and the return value.

llvm-svn: 111358
 2010-08-18 09:50:30 +00:00
Chris Lattner
0a9bda3bde remove some dead code. 
llvm-svn: 111345
 2010-08-18 02:42:11 +00:00
Chris Lattner
f94830f175 remove some code that is dead now that lea's are modeled with segment registers. 
llvm-svn: 111343
 2010-08-18 02:40:44 +00:00
Bob Wilson
412be3eea6 Expand ZERO_EXTEND operations for NEON vector types. 
Testcase from Nick Lewycky.

llvm-svn: 111341
 2010-08-18 01:45:52 +00:00
Jim Grosbach
ff8f931bbf Add materialization of virtual base registers for frame indices allocated into 
the local block. Resolve references to those indices to a new base register.
For simplification and testing purposes, a new virtual base register is
allocated for each frame index being resolved. The result is truly horrible,
but correct, code that's good for exercising the new code paths.

Next up is adding thumb1 support, which should be very simple. Following that
will be adding base register re-use and implementing a reasonable ARM
heuristic for when a virtual base register should be generated at all.

llvm-svn: 111315
 2010-08-17 22:41:55 +00:00
Anton Korobeynikov
52c8ecf231 Revert part of one of the prev. patches - tailjmp will follow later. 
llvm-svn: 111291
 2010-08-17 21:08:28 +00:00
Anton Korobeynikov
f0600e9e8a More fixes for win64: 
- Do not clobber al during variadic calls, this is AMD64 ABI-only feature
  - Emit wincall64, where necessary
Patch by Cameron Esfahani!

llvm-svn: 111289
 2010-08-17 21:06:07 +00:00
Anton Korobeynikov
f1f88db4fd Enable more win64 calls folding opportunities. 
Patch by Cameron Esfahani!

llvm-svn: 111288
 2010-08-17 21:06:01 +00:00
Jakob Stoklund Olesen
20dbe1681b Don't call tablegen'ed Predicate_* functions in the ARM target. 
llvm-svn: 111277
 2010-08-17 20:39:04 +00:00
Jim Grosbach
1d9631950f 80 column cleanup. 
llvm-svn: 111266
 2010-08-17 18:39:16 +00:00
Jakob Stoklund Olesen
74db02758b Don't call Predicate_* methods directly from Sparc target. 
Modernize predicates a bit.

The Predicate_* methods are not used by TableGen any longer. They are only
emitted for the sake of legacy code.

llvm-svn: 111263
 2010-08-17 18:17:12 +00:00
Jim Grosbach
4597437c58 Add hook to examine an instruction referencing a frame index to determine 
whether to allocate a virtual frame base register to resolve the frame
index reference in it. Implement a simple version for ARM to aid debugging.

In LocalStackSlotAllocation, scan the function for frame index references
to local frame indices and ask the target whether to allocate virtual
frame base registers for any it encounters. Purely infrastructural for
debug output. Next step is to actually allocate base registers, then add
intelligent re-use of them.

rdar://8277890

llvm-svn: 111262
 2010-08-17 18:13:53 +00:00
Jim Grosbach
b321adf3af explicitly handle no-op cases for clarity. Fixes clang warning. 
llvm-svn: 111260
 2010-08-17 18:00:41 +00:00
Bob Wilson
e382fce916 Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoid 
printing "lsl #0".  This fixes the remaining parts of pr7792.  Make
corresponding changes for encoding/decoding these instructions.

llvm-svn: 111251
 2010-08-17 17:23:19 +00:00
Chris Lattner
a556264e06 fix emacs language spec's, patch by Edmund Grimley-Evans! 
llvm-svn: 111241
 2010-08-17 16:20:04 +00:00
Bob Wilson
6239dc42c6 Allow more cases of undef shuffle indices and add tests for them. 
llvm-svn: 111226
 2010-08-17 05:54:34 +00:00
Eric Christopher
9a8050c4e1 Copy over some overridden MI wrappers for ARM fast-isel. This is where 
we're adding predicates and optional defs to the MachineInstrs.

llvm-svn: 111222
 2010-08-17 01:25:29 +00:00
Eric Christopher
8a68f2fc40 Make arm fast-isel possible to enable via command line. 
llvm-svn: 111219
 2010-08-17 00:46:57 +00:00
Bob Wilson
1e40f2351c Ignore undef shuffle indices when checking for a VTRN shuffle. Radar 8290937. 
llvm-svn: 111208
 2010-08-16 23:37:17 +00:00
Bob Wilson
d662e8cd02 Generalize a pattern for PKHTB: an SRL of 16-31 bits will guarantee 
that the high halfword is zero.  The shift need not be exactly 16 bits.

llvm-svn: 111196
 2010-08-16 22:26:55 +00:00
Eli Friedman
515b81a494 Comment out some broken/unused/useless instructions which mess up disassembly. 
llvm-svn: 111185
 2010-08-16 21:18:51 +00:00
Eli Friedman
b9707bb261 Don't attempt to SimplifyShortMoveForm in 64-bit mode. 
llvm-svn: 111182
 2010-08-16 21:03:32 +00:00
Matt Fleming
0078681411 Hookup ELF support for X86. 
llvm-svn: 111173
 2010-08-16 18:36:14 +00:00
Bob Wilson
985dab611d Rename sat_shift operand to shift_imm, in preparation for using it for other 
instructions besides saturate instructions.  No functional changes.

llvm-svn: 111168
 2010-08-16 18:27:34 +00:00
Jakob Stoklund Olesen
437fea641b Partially revert r111155. It looks like MSVC is calling an operator<() that 
clang says is unused.

llvm-svn: 111167
 2010-08-16 18:24:54 +00:00
Jakob Stoklund Olesen
a3eb6a36c2 Remove unused functions. 
llvm-svn: 111155
 2010-08-16 17:18:18 +00:00
Bob Wilson
98641e5a51 Remove unused code. 
llvm-svn: 111154
 2010-08-16 17:06:03 +00:00
Argyrios Kyrtzidis
75b69c1de3 Revert r111082. No warnings for this common pattern. 
llvm-svn: 111102
 2010-08-15 10:27:23 +00:00
Eric Christopher
1470fe415c Rework how the non-sse2 memory barrier is lowered so that the 
encoding is correct for the built-in assembler.

Based on a patch from Chris.

llvm-svn: 111083
 2010-08-14 21:51:50 +00:00
Argyrios Kyrtzidis
70b248e3ac Add ATTRIBUTE_UNUSED to methods that are not supposed to be used. 
llvm-svn: 111082
 2010-08-14 21:35:10 +00:00
Chris Lattner
8426971169 improve indentation 
llvm-svn: 111073
 2010-08-14 17:26:09 +00:00
Bob Wilson
b1eb015fc8 T2I_rbin_irs rr variant is for disassembly only, so don't provide a pattern. 
llvm-svn: 111068
 2010-08-14 03:18:29 +00:00
Bob Wilson
92bf5a7425 Add a Thumb2 t2RSBrr instruction for disassembly only. 
This fixes another part of PR7792.

llvm-svn: 111057
 2010-08-13 23:24:25 +00:00
Bob Wilson
ca672ee828 Temporarily disable tail calls on ARM to work around some linker problems. 
llvm-svn: 111050
 2010-08-13 22:43:33 +00:00
Bob Wilson
0883c6aae3 Move the Thumb2 SSAT and USAT optional shift operator out of the 
instruction opcode.  This fixes part of PR7792.

llvm-svn: 111047
 2010-08-13 21:48:10 +00:00
Bruno Cardoso Lopes
1eaa601d84 Add comments to some pattern fragments in x86 
llvm-svn: 111041
 2010-08-13 20:39:01 +00:00
Bob Wilson
c044a43293 Refactor the code for disassembling Thumb2 saturate instructions along the 
same lines as the change I made for ARM saturate instructions.

llvm-svn: 111029
 2010-08-13 19:04:21 +00:00
Dale Johannesen
3f9c148d0e Revert 110491. While not wrong, it was based on a 
misanalysis and is undesirable.

llvm-svn: 111028
 2010-08-13 18:43:45 +00:00
Bruno Cardoso Lopes
8b07859f3a Fix comment to reflect code, and remove an unused argument 
llvm-svn: 111022
 2010-08-13 17:50:47 +00:00
Bruno Cardoso Lopes
de5f3f5cb6 Improve comment to make explicit why not to touch this could before JIT goes MC 
llvm-svn: 111021
 2010-08-13 17:44:10 +00:00
Eric Christopher
63c83f19a0 Revert last patch and r110954 as I meant to. 
llvm-svn: 111001
 2010-08-13 02:37:50 +00:00
Eric Christopher
e9a4223bc8 Revert r110954 for now, pseudo instructions can't make it through to the JIT. 
llvm-svn: 111000
 2010-08-13 02:30:00 +00:00
Bruno Cardoso Lopes
350d186d69 Some small clean-up: use of pseudo instructions 
llvm-svn: 110954
 2010-08-12 20:55:18 +00:00
Johnny Chen
78345b1dfe Cleaned up the for-disassembly-only entries in the arm instruction table so that 
the memory barrier variants (other than 'SY' full system domain read and write)
are treated as one instruction with option operand.

llvm-svn: 110951
 2010-08-12 20:46:17 +00:00