Commit Graph

3837 Commits

Author SHA1 Message Date
Sylvestre Ledru 35521e2310 Fix a typo (the the => the)
llvm-svn: 160621
2012-07-23 08:51:15 +00:00
Alexey Samsonov e16e16add6 DebugInfo library: add support for fetching absolute paths to source files
(instead of basenames) from DWARF. Use this behavior in llvm-dwarfdump tool.

Reviewed by Benjamin Kramer.

llvm-svn: 160496
2012-07-19 07:03:58 +00:00
Bill Wendling 4e68e0673a Remove tabs.
llvm-svn: 160480
2012-07-19 00:17:40 +00:00
Chad Rosier 09a06c257e Tweak prose.
llvm-svn: 160478
2012-07-19 00:11:45 +00:00
Evan Cheng 39e90029a2 Target option DisableJumpTables is a gross hack. Move it to TargetLowering instead.
llvm-svn: 159611
2012-07-02 22:39:56 +00:00
Bob Wilson cac3b90633 Extend TargetPassConfig to allow running only a subset of the normal passes.
This is still a work in progress but I believe it is currently good enough
to fix PR13122 "Need unit test driver for codegen IR passes".  For example,
you can run llc with -stop-after=loop-reduce to have it dump out the IR after
running LSR.  Serializing machine-level IR is not yet supported but we have
some patches in progress for that.

The plan is to serialize the IR to a YAML file, containing separate sections
for the LLVM IR, machine-level IR, and whatever other info is needed.  Chad
suggested that we stash the stop-after pass in the YAML file and use that
instead of the start-after option to figure out where to restart the
compilation.  I think that's a great idea, but since it's not implemented yet
I put the -start-after option into this patch for testing purposes.

llvm-svn: 159570
2012-07-02 19:48:45 +00:00
Evan Cheng 58aeca0878 Need a space.
llvm-svn: 159565
2012-07-02 19:45:42 +00:00
Alexey Samsonov f4462fa3ca This patch extends the libLLVMDebugInfo which contains a minimalistic DWARF parser:
1) DIContext is now able to return function name for a given instruction address (besides file/line info).
2) llvm-dwarfdump accepts flag --functions that prints the function name (if address is specified by --address flag).
3) test case that checks the basic functionality of llvm-dwarfdump added

llvm-svn: 159512
2012-07-02 05:54:45 +00:00
Bill Wendling e38859dc8e Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.

llvm-svn: 159312
2012-06-28 00:05:13 +00:00
Duncan Sands 206fc30ab1 When users ask for -mcpu=help or -mattr=help, just output the help without
requiring a module.  Original patch by Sunay Ismail, simplified by Arnaud
de Grandmaison, then complicated by me (if a triple was specified on the
command line, output help for that triple, not for the default).

llvm-svn: 159268
2012-06-27 16:23:48 +00:00
Rafael Espindola e0eaa043eb Fix llc's -print-before=pass and -print-after=pass.
llvm-svn: 159227
2012-06-26 21:33:36 +00:00
Lang Hames c98ebda325 Rename fp-op fusion option (yet again) for compatibility with GCC option.
llvm-svn: 159042
2012-06-22 22:31:00 +00:00
Evan Cheng 9584799384 Forgot this patch in r159023.
llvm-svn: 159028
2012-06-22 20:30:39 +00:00
Lang Hames b8650f106a Rename -allow-excess-fp-precision flag to -fuse-fp-ops, and switch from a
boolean flag to an enum: { Fast, Standard, Strict } (default = Standard).

This option controls the creation by optimizations of fused FP ops that store
intermediate results in higher precision than IEEE allows (E.g. FMAs). The
behavior of this option is intended to match the behaviour specified by a
soon-to-be-introduced frontend flag: '-ffuse-fp-ops'.

Fast mode - allows formation of fused FP ops whenever they're profitable.

Standard mode - allow fusion only for 'blessed' FP ops. At present the only
blessed op is the fmuladd intrinsic. In the future more blessed ops may be
added.

Strict mode - allow fusion only if/when it can be proven that the excess
precision won't effect the result.

Note: This option only controls formation of fused ops by the optimizers.  Fused
operations that are explicitly requested (e.g. FMA via the llvm.fma.* intrinsic)
will always be honored, regardless of the value of this option.

Internally TargetOptions::AllowExcessFPPrecision has been replaced by
TargetOptions::AllowFPOpFusion.

llvm-svn: 158956
2012-06-22 01:09:09 +00:00
Nadav Rotem 0fb7408144 llvm-stress: Stabalize (by using an ordered container) and add randomness to the order in which loops are generated.
llvm-svn: 158908
2012-06-21 08:58:15 +00:00
Lang Hames 39fb1d08dc Add DAG-combines for aggressive FMA formation.
This patch adds DAG combines to form FMAs from pairs of FADD + FMUL or
FSUB + FMUL. The combines are performed when:
(a) Either
      AllowExcessFPPrecision option (-enable-excess-fp-precision for llc)
        OR
      UnsafeFPMath option (-enable-unsafe-fp-math)
    are set, and
(b) TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) is true for the type of
    the FADD/FSUB, and
(c) The FMUL only has one user (the FADD/FSUB).

If your target has fast FMA instructions you can make use of these combines by
overriding TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) to return true for
types supported by your FMA instruction, and adding patterns to match ISD::FMA
to your FMA instructions.

llvm-svn: 158757
2012-06-19 22:51:23 +00:00
Rafael Espindola ca3e0ee8b3 Move the support for using .init_array from ARM to the generic
TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM,
on X86 it is not easy to find out if .init_array should be used or not, so
the decision is made via TargetOptions and defaults to off.

Add a command line option to llc that enables it.

llvm-svn: 158692
2012-06-19 00:48:28 +00:00
Bill Wendling 6970fa8287 Remove assignments which aren't used afterwards.
llvm-svn: 158534
2012-06-15 19:28:20 +00:00
Rafael Espindola 9aa1fcce58 Use LTO_CODEGEN_PIC_MODEL_DYNAMIC for PIE. This requirest a git version of
gold to work. Since the enum value LDPO_PIE has just been added to plugin-api.h,
use a numeric constant for now so that we don't require an unreleased
version of gold to build.

llvm-svn: 158402
2012-06-13 13:30:24 +00:00
Benjamin Kramer 2642615c60 Object file output from llc isn't experimental anymore.
llvm-svn: 158305
2012-06-11 09:40:10 +00:00
Michael J. Spencer 838e5add7e [llvm-nm] Update documentation to cover object file support and arguments.
llvm-svn: 158120
2012-06-06 23:34:10 +00:00
Benjamin Kramer 009b1c1cf1 Round 2 of dead private variable removal.
LLVM is now -Wunused-private-field clean except for
- lib/MC/MCDisassembler/Disassembler.h. Not sure why it keeps all those unaccessible fields.
- gtest.

llvm-svn: 158096
2012-06-06 19:47:08 +00:00
Benjamin Kramer 628a39faa3 Remove unused private fields found by clang's new -Wunused-private-field.
There are some that I didn't remove this round because they looked like
obvious stubs. There are dead variables in gtest too, they should be
fixed upstream.

llvm-svn: 158090
2012-06-06 18:25:08 +00:00
David Blaikie 787705ae0d Reinstate -O3 for LTO.
This broke in r144788 when the CodeGenOpt option was moved from everywhere else
(specifically, from addPassesToEmitFile) to createTargetMachine. Since
LTOCodeGenerator wasn't passing the 4th argument, when the 4th parameter became
the 3rd, it silently continued to compile (int->bool conversion) but meant
something completely different.

This change preserves the existing (accidental) and previous (default)
semantics of the addPassesToEmitFile and restores the previous/intended
CodeGenOpt argument by passing it appropriately to createTargetMachine.

(discovered by pending changes to -Wconversion to catch constant->bool
conversions)

llvm-svn: 157705
2012-05-30 18:42:51 +00:00
Bob Wilson 33e5188c27 Add an insertPass API to TargetPassConfig. <rdar://problem/11498613>
Besides adding the new insertPass function, this patch uses it to
enhance the existing -print-machineinstrs so that the MachineInstrs
after a specific pass can be printed.

Patch by Bin Zeng!

llvm-svn: 157655
2012-05-30 00:17:12 +00:00
Stepan Dyatkovskiy 58107dd547 ConstantRangesSet renamed to IntegersSubset. CRSBuilder renamed to IntegersSubsetMapping.
llvm-svn: 157612
2012-05-29 12:26:47 +00:00
Benjamin Kramer 76004e69a6 Plug a leak when using MCJIT.
Found by valgrind.

llvm-svn: 157160
2012-05-20 17:24:08 +00:00
Benjamin Kramer e22b877e20 Remove extra semicolons.
llvm-svn: 157118
2012-05-19 16:44:12 +00:00
Stepan Dyatkovskiy 79a0d80d51 Ordinary PR1255 patch: DifferenceEngine and CPPBackend adopted to the new SwitchInst methods.
llvm-svn: 157112
2012-05-19 13:14:30 +00:00
Jim Grosbach 4b63d2ae1d Refactor data-in-code annotations.
Use a dedicated MachO load command to annotate data-in-code regions.
This is the same format the linker produces for final executable images,
allowing consistency of representation and use of introspection tools
for both object and executable files.

Data-in-code regions are annotated via ".data_region"/".end_data_region"
directive pairs, with an optional region type.

data_region_directive := ".data_region" { region_type }
region_type := "jt8" | "jt16" | "jt32" | "jta32"
end_data_region_directive := ".end_data_region"

The previous handling of ARM-style "$d.*" labels was broken and has
been removed. Specifically, it didn't handle ARM vs. Thumb mode when
marking the end of the section.

rdar://11459456

llvm-svn: 157062
2012-05-18 19:12:01 +00:00
Kevin Enderby badd100c26 Fixed a bug in llvm-objdump when disassembling using -macho option for a binary
containing no symbols.  Fixed the crash and fixed it not disassembling anything.

llvm-svn: 157031
2012-05-18 00:13:56 +00:00
Danil Malyshev 8c17fbd6c1 Added LLIMCJITMemoryManager to the lli. This manager will be used for MCJIT instead of DefaultJIMMemoryManager.
It's more flexible for MCJIT tasks, in addition it's provides a invalidation instruction cache for code sections which will be used before JIT code will be executed.

llvm-svn: 156933
2012-05-16 18:50:11 +00:00
Chandler Carruth d8c08c2111 Teach the 'opt' tool about '-Os' and '-Oz', corresponding to the Clang
options, to enable easier testing of the innards of LLVM that are
enabled by such optimization strategies.

Note that this doesn't provide the (much needed) function attribute
support for -Oz (as opposed to -Os), but still seems like a positive
step to better test the logic that Clang currently relies on.

Patch by Patrik Hägglund.

llvm-svn: 156913
2012-05-16 08:32:49 +00:00
Daniel Dunbar f1ab402ecd llvm-config: Use sys::fs::equivalent instead of string comparison.
- Hopefully fixes PR11600 (untested).

llvm-svn: 156865
2012-05-15 22:07:18 +00:00
Kevin Enderby edd5872f33 Fixed a bug in llvm-objdump when disassembling using -macho option for a binary
that has more than one symbol.  The last symbol was not being disassembled to
the end of the section.

llvm-svn: 156840
2012-05-15 18:57:14 +00:00
Daniel Dunbar c364d68bf2 llvm-build: Add support for non-installed libraries (e.g., gtest).
- These libraries are only reported by llvm-config when run from a development
   tree.

llvm-svn: 156838
2012-05-15 18:44:17 +00:00
Jim Grosbach c3b0427921 Allow MCCodeEmitter access to the target MCRegisterInfo.
Add the MCRegisterInfo to the factories and constructors.

Patch by Tom Stellard <Tom.Stellard@amd.com>.

llvm-svn: 156828
2012-05-15 17:35:52 +00:00
Rafael Espindola 5f4b32f9d7 Fix a use after free when the streamer is destroyed. Fixes pr12622.
llvm-svn: 156606
2012-05-11 03:42:13 +00:00
Bob Wilson 7789aae96d Do not install llvm-config-host for cross-builds of clang. rdar://11317847
My previous change to install llvm-config-host for cross-builds resulted
in that file being installed even when the normal llvm-config was not
installed, e.g., when building the install-clang target.  Daniel suggested
this alternative, which solves the immediate problem and also avoids the gunk
in the top-level makefile.

llvm-svn: 156448
2012-05-09 00:07:02 +00:00
Kevin Enderby fe3d005ca5 Fix it so llvm-objdump -arch does accept x86 and x86-64 as valid arch names.
PR12731.  Patch by Meador Inge!

llvm-svn: 156444
2012-05-08 23:38:45 +00:00
Chandler Carruth 0fde00150d Move the CodeExtractor utility to a dedicated header file / source file,
and expose it as a utility class rather than as free function wrappers.

The simple free-function interface works well for the bugpoint-specific
pass's uses of code extraction, but in an upcoming patch for more
advanced code extraction, they simply don't expose a rich enough
interface. I need to expose various stages of the process of doing the
code extraction and query information to decide whether or not to
actually complete the extraction or give up.

Rather than build up a new predicate model and pass that into these
functions, just take the class that was actually implementing the
functions and lift it up into a proper interface that can be used to
perform code extraction. The interface is cleaned up and re-documented
to work better in a header. It also is now setup to accept the blocks to
be extracted in the constructor rather than in a method.

In passing this essentially reverts my previous commit here exposing
a block-level query for eligibility of extraction. That is no longer
necessary with the more rich interface as clients can query the
extraction object for eligibility directly. This will reduce the number
of walks of the input basic block sequence by quite a bit which is
useful if this enters the normal optimization pipeline.

llvm-svn: 156163
2012-05-04 10:18:49 +00:00
Pete Cooper 28fb4fc91b PR12729: Change 'llvm-objdump' to display the available targets.
Patch by Meador Inge.

llvm-svn: 156128
2012-05-03 23:20:10 +00:00
John McCall 2a78400664 Fix unintentional use of operator bool.
llvm-svn: 155978
2012-05-02 05:39:10 +00:00
Eli Bendersky 968b63c72d Remove redundant line (the memory manager is set above to the same object
if !ForceInterpreteri). It has no effect (apart from a memory leak...)

llvm-svn: 155792
2012-04-29 11:14:59 +00:00
Evan Cheng 86bd889942 DumpSegment64Command() wasn't returning correct result. Caught by static analyzer. rdar://11329354
llvm-svn: 155669
2012-04-26 22:07:28 +00:00
Michael J. Spencer e734f5417f [CMake] Restructure how Clang, Polly and other external projects get included.
While making lld build under the tools directory I decided to refactor how this
works.

There is now a macro, add_llvm_external_project, which takes the name of the
expected subdirectory. This sets up two CMake options.

 * LLVM_EXTERNAL_${NAME}_SOURCE_DIR
     This is the path to the source. It defaults to
     ${CMAKE_CURRENT_SOURCE_DIR}/${name}.
 * LLVM_EXTERNAL_${NAME}_BUILD
     Enable and disable building the tool as part of LLVM.

I chose LLVM_EXTERNAL_${NAME} as a prefix so they all show up together in the
GUI.

llvm-svn: 155654
2012-04-26 19:43:35 +00:00
Chris Lattner 07d9073df2 openbsd doesn't support soname, patch by Brad Smith!
llvm-svn: 155536
2012-04-25 06:37:20 +00:00
Michael J. Spencer 9125493efe Remove llvm-ld and llvm-stub (which is only used by llvm-ld).
llvm-ld is no longer useful and causes confusion and so it is being removed.

* Does not work very well on Windows because it must call a gcc like driver to
  assemble and link.
* Has lots of hard coded paths which are wrong on many systems.
* Does not understand most of ld's options.
* Can be partially replaced by llvm-link | opt | {llc | as, llc -filetype=obj} |
  ld, or fully replaced by Clang.

I know of no production use of llvm-ld, and hacking use should be
replaced by Clang's driver.

llvm-svn: 155147
2012-04-19 19:27:54 +00:00
Nick Lewycky b0e9789899 Move the JIT flags from llc to lli. These flags showed up as part of moving
backend flags in TargetOptions.h into their own class in r145714.

llvm-svn: 154993
2012-04-18 08:34:12 +00:00
Joe Groff 1b73869a9b allow opt to take a -mtriple option
llvm-svn: 154959
2012-04-17 23:05:48 +00:00