Commit Graph

40725 Commits

Author SHA1 Message Date
Matt Fleming
453db50333 Hookup ELF support for X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111173 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:36:14 +00:00
Matt Fleming
6b2e257e74 Add ELF ObjectWriter and Streamer support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111172 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:35:43 +00:00
Matt Fleming
a8bf473fb1 Layout helper function.
Introduce a helper method to add a section to the end of a layout. This
will be used by the ELF ObjectWriter code to add the metadata sections
(symbol table, etc) to the end of an object file.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111171 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:35:06 +00:00
Matt Fleming
6c8b3d2f1f Record a symbol's size which is needed for ELF symbol tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:34:31 +00:00
Bob Wilson
22f5dc79c0 Rename sat_shift operand to shift_imm, in preparation for using it for other
instructions besides saturate instructions.  No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111168 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:27:34 +00:00
Jakob Stoklund Olesen
de78f05cf7 Partially revert r111155. It looks like MSVC is calling an operator<() that
clang says is unused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111167 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:24:54 +00:00
Jim Grosbach
63249347c2 track local frame size in MFI, not local to the pass, since PEI needs it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111164 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 18:06:15 +00:00
Jakob Stoklund Olesen
5ba3e4d75d Remove unused functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 17:18:20 +00:00
Jakob Stoklund Olesen
a649ab542d Remove unused functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 17:18:18 +00:00
Bob Wilson
45cdd7fd61 Remove unused code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111154 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 17:06:03 +00:00
Dan Gohman
1895991a08 To create a copy of a SmallVector with an element removed from the
middle, copy the elements in two groups, rather than copying all the
elements and then doing an erase on the middle of the result. These
are SmallVectors, so we shouldn't expect to hit dynamic allocation
in the common case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111151 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:57:24 +00:00
Chris Lattner
abf8f9cbb8 silence a vc2010 warning: " result of 32-bit shift implicitly converted to
64 bits (was 64-bit shift intended?)", pointed out by 'nobled' on llvmdev


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111148 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:35:20 +00:00
Dan Gohman
0c5e95df57 Tidy whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111147 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:34:09 +00:00
Dan Gohman
619d3324bd Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:31:39 +00:00
Dan Gohman
8d9c7a6701 Use const_iterator in a few places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111144 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:30:01 +00:00
Dan Gohman
2d16fc5ff0 Use iterators instead of indices in a few more places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:27:53 +00:00
Dan Gohman
e28d7922f7 Micro-optimize SCEVConstant comparison.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111142 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:25:35 +00:00
Dan Gohman
2f199f9952 Move SCEVNAryExpr's virtual member functions out of line, and convert
them to iterators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111140 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:21:27 +00:00
Dan Gohman
bb85409b51 Use iterators instead of indices in simple cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111138 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:16:11 +00:00
Dan Gohman
c4f77983d8 Avoid gratuitous inefficiency in ifndef NDEBUG code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111137 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:13:54 +00:00
Dan Gohman
d3f171d66f Make one getAddExpr call when analyzing a+b+c+d+e+... instead of one
for each add instruction. Ditto for Mul.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111136 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 16:03:49 +00:00
Dan Gohman
57560da3f5 Delete an unused function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111135 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 15:57:14 +00:00
Dan Gohman
3e22b7c916 Instead of having CollectSubexpr's categorize operands as interesting or
uninteresting, just put all the operands on one list and make
GenerateReassociations make the decision about what's interesting.
This is simpler, and it avoids an extra ScalarEvolution::getAddExpr call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111133 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 15:50:00 +00:00
Dan Gohman
4065f60912 Put add operands in ScalarEvolution-canonical order, when convenient.
This isn't necessary, because ScalarEvolution sorts them anyway,
but it's tidier this way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111132 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 15:39:27 +00:00
Dan Gohman
3063410e52 Add hooks to FoldingSetTrait to allow specializations to provide
implementations of equality comparison and hash computation. This
can be used to optimize node lookup by avoiding creating lots of
temporary ID values just for hashing and comparison purposes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111130 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 15:30:39 +00:00
Dan Gohman
6616f7e2f1 Reverse the order of GetNodeProfile's arguments, for consistency
with FoldingSetTrait::Profile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111127 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 14:53:42 +00:00
Dan Gohman
ebd9923bd8 Avoid #include <ScalarEvolution.h> in LoopSimplify.cpp, which doesn't
actually use ScalarEvolution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 14:44:03 +00:00
Dan Gohman
7a4994356b Instead, teach SimplifyCFG to trim non-address-taken blocks from
indirectbr destination lists.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 14:41:14 +00:00
Dan Gohman
9883b95a2b Revert r111058, the lint check for indirectbr successors that aren't
address-taken. This can occur normally, if the code which took the
address got DCEd.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 14:39:19 +00:00
Argyrios Kyrtzidis
8c8b9ee8c8 Revert r111082. No warnings for this common pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111102 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-15 10:27:23 +00:00
Mikhail Glushenkov
b3d36293c2 llvmc: remove dynamic plugins.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111094 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-15 07:07:12 +00:00
Eric Christopher
c0b2a2018a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111083 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 21:51:50 +00:00
Argyrios Kyrtzidis
7268d97ae6 Add ATTRIBUTE_UNUSED to methods that are not supposed to be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 21:35:10 +00:00
Chris Lattner
132929aa9e improve indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111073 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 17:26:09 +00:00
Bob Wilson
136e491280 T2I_rbin_irs rr variant is for disassembly only, so don't provide a pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111068 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 03:18:29 +00:00
Ted Kremenek
865287de4a Update CMake build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111063 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 01:55:09 +00:00
Dan Gohman
c2f40066bb LoopSimplify shouldn't split loop backedges that use indirectbr. PR7867.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 00:43:09 +00:00
Dan Gohman
e2c6d131d1 Teach SimplifyCFG how to simplify indirectbr instructions.
- Eliminate redundant successors.
 - Convert an indirectbr with one successor into a direct branch.

Also, generalize SimplifyCFG to be able to be run on a function entry block.
It knows quite a few simplifications which are applicable to the entry
block, and it only needs a few checks to avoid trouble with the entry block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111060 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 00:29:42 +00:00
Jim Grosbach
3d72367d30 Add a local stack object block allocation pass. This is still an
experimental pass that allocates locals relative to one another before
register allocation and then assigns them to actual stack slots as a block
later in PEI. This will eventually allow targets with limited index offset
range to allocate additional base registers (not just FP and SP) to
more efficiently reference locals, as well as handle situations where
locals cannot be referenced via SP or FP at all (dynamic stack realignment
together with variable sized objects, for example). It's currently
incomplete and almost certainly buggy. Work in progress.

Disabled by default and gated via the -enable-local-stack-alloc command
line option.

rdar://8277890



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111059 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-14 00:15:52 +00:00
Dan Gohman
61556e3a94 Add a lint check for an indirectbr destination which has not
had its address taken.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111058 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 23:56:28 +00:00
Bob Wilson
20d8e4e7aa Add a Thumb2 t2RSBrr instruction for disassembly only.
This fixes another part of PR7792.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111057 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 23:24:25 +00:00
Jakob Stoklund Olesen
0a2b2a1497 Clean up the Spiller.h interface.
The earliestStart argument is entirely specific to linear scan allocation, and
can be easily calculated by RegAllocLinearScan.

Replace std::vector with SmallVector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111055 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 22:56:53 +00:00
Bob Wilson
703af3ab12 Temporarily disable tail calls on ARM to work around some linker problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111050 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 22:43:33 +00:00
Bob Wilson
38aa2871fc Move the Thumb2 SSAT and USAT optional shift operator out of the
instruction opcode.  This fixes part of PR7792.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 21:48:10 +00:00
Dan Gohman
0ad2c7ace8 Various optimizations. Don't compare two loops' depths
when they are the same loop. Don't compare two instructions'
loop depths when they are in the same block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 21:24:58 +00:00
Jakob Stoklund Olesen
fc412d85c4 Implement splitting inside a single block.
When a live range is contained a single block, we can split it around
instruction clusters. The current approach is very primitive, splitting before
and after the largest gap between uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111043 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 21:18:48 +00:00
Dan Gohman
e62d58884a Fix LSR's ExtractImmediate and ExtractSymbol to avoid calling
ScalarEvolution::getAddExpr, which can be pretty expensive, when nothing
has changed, which is pretty common.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111042 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 21:17:19 +00:00
Bruno Cardoso Lopes
30baa63474 Add comments to some pattern fragments in x86
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111041 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 20:39:01 +00:00
Dan Gohman
9cba97886c When testing whether one loop contains another, test this directly
rather than testing whether the loop contains the other's header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111039 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 20:23:25 +00:00
Dan Gohman
9f1fb42b7e Add a const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13 20:17:27 +00:00