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Commit Graph

14184 Commits

Author SHA1 Message Date
Eric Christopher
25b7bedcf9 Fix indenting.
llvm-svn: 139670
2011-09-13 23:45:39 +00:00
Kevin Enderby
4a91571f82 First step in supporting #line directives in assembler. This step parses the
#line directives with the needed support in the lexer.  Next will be to build
a simple file/line# table mapping source SMLoc's for later use by diagnostics.
And the last step will be to get the diagnostics to use the mapping for file
and line numbers.

llvm-svn: 139669
2011-09-13 23:45:18 +00:00
Benjamin Kramer
eb3c03dfb7 Remove include of header that doesn't exist (yet).
llvm-svn: 139629
2011-09-13 19:55:32 +00:00
Benjamin Kramer
c4e7a56915 Sketch out a DWARF parser.
This introduces a new library to LLVM: libDebugInfo. It will provide debug information
parsing to LLVM. Much of the design and some of the code is taken from the LLDB project.

It also contains an llvm-dwarfdump tool that can dump the abbrevs and DIEs from an
object file. It can be used to write tests for DWARF input and output easily.

llvm-svn: 139627
2011-09-13 19:42:23 +00:00
Benjamin Kramer
fcc23eeec7 Add the DataExtractor utility class.
It is an endian-aware helper that can read data from a StringRef. It will
come in handy for DWARF parsing. This class is inspired by LLDB's
DataExtractor, but is stripped down to the bare minimum needed for DWARF.

Comes with unit tests!

llvm-svn: 139626
2011-09-13 19:42:16 +00:00
Jakob Stoklund Olesen
8e739db8a2 Switch extendInBlock() to take a kill slot instead of the last use slot.
Three out of four clients prefer this interface which is consistent with
extendIntervalEndTo() and LiveRangeCalc::extend().

llvm-svn: 139604
2011-09-13 16:47:56 +00:00
Devang Patel
ac7dbe4022 Maintain hexadecimal order.
llvm-svn: 139601
2011-09-13 16:39:59 +00:00
Devang Patel
484cb2a602 Add DW_ATE_UTF, which clang started using in my previous commit!
llvm-svn: 139503
2011-09-12 17:18:20 +00:00
Nadav Rotem
abb5bb41d4 CR fixes per Bruno's request.
Undo the changes from r139285 which added custom lowering to vselect.
Add tablegen lowering for vselect.

llvm-svn: 139479
2011-09-11 15:02:23 +00:00
Duncan Sands
6fc4c521c9 Mark the eh.typeid.for intrinsic as being 'const', which it is inside
any given function.  As pointed out by John McCall, this is needed to
have redundant eh.typeid.for tests be eliminated in the presence of
cleanups.

llvm-svn: 139360
2011-09-09 07:50:37 +00:00
Devang Patel
ba2d56b1ef Directly point debug info to the stack slot of the arugment, instead of trying to keep track of vreg in which it the arugment is copied. The LiveDebugVariable can keep track of variable's ranges.
llvm-svn: 139330
2011-09-08 22:59:09 +00:00
Benjamin Kramer
3c40c2100b Add support for relocations to ObjectFile.
Patch by Danil Malyshev!

llvm-svn: 139314
2011-09-08 20:52:17 +00:00
James Molloy
f781d3d8e9 Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.
llvm-svn: 139237
2011-09-07 17:24:38 +00:00
Duncan Sands
b027f19035 When inlining exception handling code into another function, ensure that
duplicate tests are eliminated (for example if the two functions both have
a catch clause catching the same type, ensure the redundant one is removed).
Note that it would probably be safe to say that eh.typeid.for is 'const',
but since two calls to it with the same argument can give different results
(but only if the calls are in different functions), it seems more correct to
mark it only 'pure'; this doesn't get in the way of the optimization.

llvm-svn: 139236
2011-09-07 16:44:14 +00:00
Eli Friedman
6a45370c0f Relax the MemOperands on atomics a bit. Fixes -verify-machineinstrs failures for atomic laod/store on ARM.
(The fix for the related failures on x86 is going to be nastier because we actually need Acquire memoperands attached to the atomic load instrs, etc.)

llvm-svn: 139221
2011-09-07 02:23:42 +00:00
Duncan Sands
d1311488fe Add codegen support for vector select (in the IR this means a select
with a vector condition); such selects become VSELECT codegen nodes.
This patch also removes VSETCC codegen nodes, unifying them with SETCC
nodes (codegen was actually often using SETCC for vector SETCC already).
This ensures that various DAG combiner optimizations kick in for vector
comparisons.  Passes dragonegg bootstrap with no testsuite regressions
(nightly testsuite as well as "make check-all").  Patch mostly by
Nadav Rotem.

llvm-svn: 139159
2011-09-06 19:07:46 +00:00
Duncan Sands
6939ae53ac Split the init.trampoline intrinsic, which currently combines GCC's
init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC.  While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function.  To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function.  Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!).  Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC.  Patch mostly by Sanjoy Das.

llvm-svn: 139140
2011-09-06 13:37:06 +00:00
Duncan Sands
a74d10bb60 Add some simple insertvalue simplifications, for the purpose of cleaning
up do-nothing exception handling code produced by dragonegg.

llvm-svn: 139113
2011-09-05 06:52:48 +00:00
Andrew Trick
43d88c3879 Comment and clarifying assert.
llvm-svn: 139036
2011-09-02 21:20:46 +00:00
Duncan Sands
33f33411e8 Darwin wants ctors/dtors to be ordered the other way round to linux.
llvm-svn: 139015
2011-09-02 18:07:19 +00:00
Benjamin Kramer
bd939ad83e Don't drop alignment info on local common symbols.
- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

llvm-svn: 138976
2011-09-01 23:04:27 +00:00
Rafael Espindola
3bb0f9391c 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
Benjamin Kramer
2ca7c2b2c7 Teach macho-dump to dump the uleb128s referred to by linkedit_data segments.
llvm-svn: 138836
2011-08-30 22:10:58 +00:00
Jeffrey Yasskin
8f36e758c2 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
Nicolas Geoffray
7927005c3a The code model of JIT should default to JITDefault.
llvm-svn: 138819
2011-08-30 19:50:33 +00:00
Rafael Espindola
321e47cd0b 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
84f69a1992 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
91aa81acaa 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
Benjamin Kramer
de3a6db63c Teach macho-dump how to dump linkedit_data load commands.
llvm-svn: 138807
2011-08-30 18:33:37 +00:00
Benjamin Kramer
67a03c6a96 Add load commands from Lion to Macho.h.
llvm-svn: 138806
2011-08-30 18:33:34 +00:00
Jim Grosbach
a1aa6a2e8b Thumb2 parsing and encoding for IT blocks.
llvm-svn: 138773
2011-08-29 22:24:09 +00:00
Jim Grosbach
447ede4d6e Tidy up. Whitespace.
llvm-svn: 138767
2011-08-29 21:15:20 +00:00
Jim Grosbach
a5a8e59643 Tidy up. 80 columns.
llvm-svn: 138750
2011-08-29 18:22:04 +00:00
Andrew Trick
026fa4da72 Reapply r138695. Fix PassManager stack depths.
Patch by Xiaoyi Guo!

llvm-svn: 138737
2011-08-29 17:07:00 +00:00
Tobias Grosser
c6abc36833 Add AMDIL as valid target triple to LLVM.
Submitted by: Villmow, Micah <Micah.Villmow@amd.com>

llvm-svn: 138734
2011-08-29 15:44:55 +00:00
Andrew Trick
65754eb3f7 Reverting r138695 to see if it fixes clang self host.
llvm-svn: 138701
2011-08-27 06:10:16 +00:00
Andrew Trick
e38568bc07 Fix PassManager stack depths.
Patch by Xiaoyi Guo!

llvm-svn: 138695
2011-08-27 02:11:03 +00:00
Andrew Trick
504187a152 LoopInfo::updateUnloop fix, and verify Block->Loop maps.
Fixes an oversight, and adds verification to catch it in the unloop.ll tests.

llvm-svn: 138622
2011-08-26 03:06:34 +00:00
Bill Wendling
546c7a05de Initial check in that will auto-upgrade the old EH scheme to the new EH scheme.
This upgrade suffers from the problems of the old EH scheme - i.e., that the
calls to llvm.eh.exception() and llvm.eh.selector() can wander off and get
lost. It makes a valiant effort to reclaim these little lost lambs.

This is a first draft, so it hasn't yet been hooked up to the parser.

llvm-svn: 138602
2011-08-25 23:22:40 +00:00
David Greene
4cca5f784a Constify Comparison
Make ConstantInt::uge() const so it may be used in const contexts.

llvm-svn: 138579
2011-08-25 20:18:22 +00:00
Eli Friedman
6f95a6ae1b Basic x86 code generation for atomic load and store instructions.
llvm-svn: 138478
2011-08-24 20:50:09 +00:00
Nadav Rotem
43673d6d0b Implement Constant::isAllOnesValue(). Fix ConstantFolding to use the new api.
llvm-svn: 138469
2011-08-24 20:18:38 +00:00
Evan Cheng
420bf5446c Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.

llvm-svn: 138450
2011-08-24 18:08:43 +00:00
Evan Cheng
ed13551c1d Some refactoring so TargetRegistry.h no longer has to include any files
from MC.

llvm-svn: 138367
2011-08-23 20:15:21 +00:00
Eric Christopher
aa4993b9aa Revert "Address Duncan's CR request:"
This reverts commit 20a05be15ea5271ab6185b83200fa88263362400. (svn rev 138340)

Conflicts:

	test/Transforms/InstCombine/bitcast.ll

llvm-svn: 138366
2011-08-23 20:11:10 +00:00
Nadav Rotem
d449bc9bff Address Duncan's CR request:
1. Cleanup the tests in ConstantFolding.cpp
2. Implement isAllOnes for Constant, ConstantFP, ConstantVector

llvm-svn: 138340
2011-08-23 17:48:43 +00:00
Ivan Krasin
aa3c2057c5 This patch adds support of le32 pseudo-cpu that stands for generic
32-bit little-endian CPU. Used by PNaCl and Emscripten.

llvm-svn: 138335
2011-08-23 16:59:00 +00:00
Benjamin Kramer
48f01f6a77 Add an MCInstrAnalysis version of isCall.
llvm-svn: 138305
2011-08-22 23:41:41 +00:00
Jay Foad
e6083b67c2 Remove DEFINE_TRANSPARENT_CASTED_OPERAND_ACCESSORS, folding its
functionality into DEFINE_TRANSPARENT_OPERAND_ACCESSORS. A side-effect
of this is that the operand accessors for Constants will tolerate NULL
operands, fixing PR10663.

llvm-svn: 138230
2011-08-22 09:37:03 +00:00
Devang Patel
e4127d626e Do not use named md nodes to track variables that are completely optimized. This does not scale while doing LTO with debug info. New approach is to include list of variables in the subprogram info directly.
llvm-svn: 138145
2011-08-19 23:28:12 +00:00