Commit Graph

74676 Commits

Author SHA1 Message Date
Benjamin Kramer
162ee5c725 Add a neat little two's complement hack for x86.
On x86 we can't encode an immediate LHS of a sub directly. If the RHS comes from a XOR with a constant we can
fold the negation into the xor and add one to the immediate of the sub. Then we can turn the sub into an add,
which can be commuted and encoded efficiently.

This code is generated for __builtin_clz and friends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136167 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 22:42:13 +00:00
Bruno Cardoso Lopes
4ea496846a Recognize unpckh* masks and match 256-bit versions. The new versions are
different from the previous 128-bit because they work in lanes.
Update a few comments and add testcases

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136157 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 22:03:40 +00:00
Dan Gohman
c680b92460 Delete unnecessarily cautious LastCALLSEQ code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136156 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 22:00:59 +00:00
Jim Grosbach
45f3929ef0 ARM rot_imm printing adjustment.
Allow the rot_imm operand to be optional. This sets the stage for refactoring
away the "rr" versions from the multiclasses and replacing them with Pat<>s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136154 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 21:44:37 +00:00
Jim Grosbach
85bfd3b023 ARM cleanup of rot_imm encoding.
Start of cleaning this up a bit. First step is to remove the encoder hook by
storing the operand as the bits it'll actually encode to so it can just be
directly used. Map it to the assembly source values 8/16/24 when we print it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136152 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 21:28:43 +00:00
Eli Friedman
61cc47e15d Prevent x86-specific DAGCombine from creating nodes with illegal type (which could not be selected). Fixes a minor isel issue that was breaking the testcase from r136130.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 21:02:58 +00:00
Evan Cheng
bfe3686aee Remove one last reference to Target in MC library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136145 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:57:44 +00:00
Owen Anderson
793e79601f Split am2offset into register addend and immediate addend forms, necessary for allowing the fixed-length disassembler to distinguish between SBFX and STR_PRE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136141 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:54:26 +00:00
Nicolas Geoffray
45c8d2bc9c Update generated code to use new API of GetElementPtrInst::Create.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:52:25 +00:00
Jim Grosbach
84c93d4bb0 FileCheck'ize test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:49:44 +00:00
Bill Wendling
194229e591 Fix a typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136133 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:42:28 +00:00
Jim Grosbach
0d87ec21d7 Fix over-zealous rename from r136095.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:41:24 +00:00
Eli Friedman
ce1986bd21 XFAIL this test while I investigate it; it's failing for an unexpected reason.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136131 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:41:03 +00:00
Eli Friedman
24f05334e6 Add obvious missing case to switch. PR10497.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136130 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:38:49 +00:00
Eli Friedman
be9a9afee5 Fix a couple minor mistakes pointed out by Bill in adding 'fence' instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:24:06 +00:00
Evan Cheng
d6dcf39ca8 Fix llvm-mc target detection code to match llc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 19:02:16 +00:00
Andrew Trick
5acaeb5121 Updating stale documentation on regalloc modes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:31:49 +00:00
Bill Wendling
726f1b90a9 Use the correct for for the version. It's little endian and my brain is
obviously big endian. :-)
PR10502


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136111 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:31:41 +00:00
Jim Grosbach
189610f946 ARM diagnostics for ldrexd/stredx out of order paired register operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:25:39 +00:00
Bruno Cardoso Lopes
cf128eab90 Remove now unused patterns. 0 insertions(+), 98 deletions(-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136109 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:22:39 +00:00
Bruno Cardoso Lopes
5e3267dac9 Cleanup old matching for PUNPCK* variants
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:22:27 +00:00
Devang Patel
a671a3092a While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:09:53 +00:00
Jim Grosbach
36711e4a3c ARM parsing and encoding tests for load/store exclusive instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136105 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 18:07:21 +00:00
Jim Grosbach
dfdf02dbad ARM fix for LDREX source register encoding.
rdar://9842203


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136102 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 17:44:46 +00:00
Andrew Trick
5116ff671f SCEV: Added a data structure for storing not-taken info per loop
exit. Added an interfaces for querying either the loop's exact/max
backedge taken count or a specific loop exit's not-taken count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 17:19:55 +00:00
Duncan Sands
b08904093a Strip trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 17:19:30 +00:00
Jim Grosbach
4f6f13db1a ARM assembly parsing and encoding for SWP[B] instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136098 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 17:15:11 +00:00
Jim Grosbach
1ef91417bd ARM SWP instructions store, too, not just load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136096 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 17:11:05 +00:00
Jim Grosbach
1355cf1f76 Clean up the ARM asm parser a bit.
No intendeded functional change. Just cleaning up a bit to make things more
self-consistent in layout and style.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136095 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 17:10:22 +00:00
Jim Grosbach
3d5ab367b6 ARM fix asm parsing range check for [0,31] immediates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136091 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 16:44:05 +00:00
Jim Grosbach
ed8384806e ARM parsing and encoding for SVC instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136090 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 16:24:27 +00:00
Jim Grosbach
873db3eeba ARM assembly parsing and encoding tests for SUB instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:44:05 +00:00
Jim Grosbach
a46c658c66 Update ARM STM tests. Fix check: prefix for diagnostic tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136088 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:41:22 +00:00
Duncan Sands
652b48bf23 Teach the Triple class about kfreebsd (FreeBSD kernel with
a GNU userspace).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136085 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:30:04 +00:00
Rafael Espindola
3d72290ecb Add LLVMAddAlwaysInlinerPass to the C API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136083 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:23:23 +00:00
Rafael Espindola
a03084d86e LLVM 3.0 is here, remove old do nothing method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:17:32 +00:00
Duncan Sands
7becbc41ab SrcDef is only written and never read. Remove it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136080 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:05:06 +00:00
Duncan Sands
f56138d4ae Add helper function for getting true/false constants in a uniform
way for i1 and vector of i1 types.  Use these to make some code
more self-documenting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136079 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 15:03:53 +00:00
Bill Wendling
b3aa4715c1 Clean up the HTML here a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136074 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 10:41:15 +00:00
Jay Foad
8aa695dc6f Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 09:36:52 +00:00
Nick Lewycky
5e0ac58bef Don't try to dereference syms[0] on an empty vector. Reported by Todd Jackson
and Jeffrey Bosboom!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136066 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 08:40:36 +00:00
Bill Wendling
de77055a68 The compact unwinding offsets are divided by 8 on 64-bit machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 08:03:49 +00:00
Bill Wendling
75471d698f Describe the reasoning for compact unwind in better terms. Thanks to Nick Kledzik for the description.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136064 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 07:58:09 +00:00
Bruno Cardoso Lopes
5d348b4dc4 Add 256-bit isel for movsldup/movshdup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136051 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 02:39:32 +00:00
Bruno Cardoso Lopes
9123c6fea0 More movsldup/movshdup cleanup. Rewrite the mask matching function and add
support for 256-bit versions (but no instruction selection yet, coming next).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136050 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 02:39:28 +00:00
Bruno Cardoso Lopes
5f6c440e53 More cleanup, subtarget info isn't used here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136049 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 02:39:25 +00:00
Bruno Cardoso Lopes
cc1c3526a7 Add 128-bit AVX versions of movshdup/mosldup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136048 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 02:39:23 +00:00
Bruno Cardoso Lopes
3e9235c720 Cleanup movsldup/movshdup matching.
27 insertions(+), 62 deletions(-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136047 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 02:39:13 +00:00
Jakob Stoklund Olesen
165e231c42 Revert to RA_Assign when a virtreg separates into components.
When dead code elimination deletes a PHI value, the virtual register may
split into multiple connected components. In that case, revert each
component to the RS_Assign stage.

The new components are guaranteed to be smaller (the original value
numbers are distributed among the components), so this will always be
making progress. The components are now allowed to evict other live
ranges or be split again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136034 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 00:54:56 +00:00
Evan Cheng
28c85a81a1 Rename createCodeEmitter to createMCCodeEmitter; createObjectStreamer to createMCObjectStreamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136031 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 00:42:34 +00:00