Commit Graph

14 Commits

Author SHA1 Message Date
Richard Smith 89ee75d786 What year is it! This file has no reason to be written in C, and has doubly no
reason to expose a global symbol 'decodeInstruction' nor to pollute the global
scope with a bunch of external linkage entities (some of which conflict with
others elsewhere in LLVM).

This is just the initial transition to C++; more cleanups to follow.

llvm-svn: 206717
2014-04-20 21:07:34 +00:00
Yaron Keren cf96c257f4 Cleaning up two more pre-Visual C++ 2012 build hacks.
llvm-svn: 203093
2014-03-06 08:05:43 +00:00
NAKAMURA Takumi ce746c6c49 [CMake] Let add_public_tablegen_target responsible to provide dependency to CommonTableGen.
add_public_tablegen_target adds *CommonTableGen to LLVM_COMMON_DEPENDS.
LLVM_COMMON_DEPENDS affects add_llvm_library (and other add_target stuff) within its scope.

llvm-svn: 195927
2013-11-28 17:04:04 +00:00
NAKAMURA Takumi b2abd160b3 [CMake] Prune include_directories() in llvm/lib/Target, take #2.
I forgot to commit them. They were staging in my local repo.

llvm-svn: 195924
2013-11-28 15:30:37 +00:00
Daniel Dunbar 539d0a8a09 build/CMake: Finish removal of add_llvm_library_dependencies.
llvm-svn: 145420
2011-11-29 19:25:30 +00:00
Chandler Carruth 9d7feab3e0 Rewrite the CMake build to use explicit dependencies between libraries,
specified in the same file that the library itself is created. This is
more idiomatic for CMake builds, and also allows us to correctly specify
dependencies that are missed due to bugs in the GenLibDeps perl script,
or change from compiler to compiler. On Linux, this returns CMake to
a place where it can relably rebuild several targets of LLVM.

I have tried not to change the dependencies from the ones in the current
auto-generated file. The only places I've really diverged are in places
where I was seeing link failures, and added a dependency. The goal of
this patch is not to start changing the dependencies, merely to move
them into the correct location, and an explicit form that we can control
and change when necessary.

This also removes a serialization point in the build because we don't
have to scan all the libraries before we begin building various tools.
We no longer have a step of the build that regenerates a file inside the
source tree. A few other associated cleanups fall out of this.

This isn't really finished yet though. After talking to dgregor he urged
switching to a single CMake macro to construct libraries with both
sources and dependencies in the arguments. Migrating from the two macros
to that style will be a follow-up patch.

Also, llvm-config is still generated with GenLibDeps.pl, which means it
still has slightly buggy dependencies. The internal CMake
'llvm-config-like' macro uses the correct explicitly specified
dependencies however. A future patch will switch llvm-config generation
(when using CMake) to be based on these deps as well.

This may well break Windows. I'm getting a machine set up now to dig
into any failures there. If anyone can chime in with problems they see
or ideas of how to solve them for Windows, much appreciated.

llvm-svn: 136433
2011-07-29 00:14:25 +00:00
Chandler Carruth 97c069c1d2 Clean up a pile of hacks in our CMake build relating to TableGen.
The first problem to fix is to stop creating synthetic *Table_gen
targets next to all of the LLVM libraries. These had no real effect as
CMake specifies that add_custom_command(OUTPUT ...) directives (what the
'tablegen(...)' stuff expands to) are implicitly added as dependencies
to all the rules in that CMakeLists.txt.

These synthetic rules started to cause problems as we started more and
more heavily using tablegen files from *subdirectories* of the one where
they were generated. Within those directories, the set of tablegen
outputs was still available and so these synthetic rules added them as
dependencies of those subdirectories. However, they were no longer
properly associated with the custom command to generate them. Most of
the time this "just worked" because something would get to the parent
directory first, and run tablegen there. Once run, the files existed and
the build proceeded happily. However, as more and more subdirectories
have started using this, the probability of this failing to happen has
increased. Recently with the MC refactorings, it became quite common for
me when touching a large enough number of targets.

To add insult to injury, several of the backends *tried* to fix this by
adding explicit dependencies back to the parent directory's tablegen
rules, but those dependencies didn't work as expected -- they weren't
forming a linear chain, they were adding another thread in the race.

This patch removes these synthetic rules completely, and adds a much
simpler function to declare explicitly that a collection of tablegen'ed
files are referenced by other libraries. From that, we can add explicit
dependencies from the smaller libraries (such as every architectures
Desc library) on this and correctly form a linear sequence. All of the
backends are updated to use it, sometimes replacing the existing attempt
at adding a dependency, sometimes adding a previously missing dependency
edge.

Please let me know if this causes any problems, but it fixes a rather
persistent and problematic source of build flakiness on our end.

llvm-svn: 136023
2011-07-26 00:09:08 +00:00
NAKAMURA Takumi de8fda8908 CMake: Add disabling optimization on MSVC8 and MSVC10 as workaround for some files in Target/ARM and Target/X86.
llvm-svn: 122623
2010-12-29 03:59:27 +00:00
Michael J. Spencer 93c9b2ea93 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

llvm-svn: 113819
2010-09-13 23:59:48 +00:00
Michael J. Spencer dc38d36ccb CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
Duncan Sands e4f45cc88f This bug is also present in MSVC10. Requested by Elrood on IRC.
llvm-svn: 105527
2010-06-05 12:40:43 +00:00
Chris Lattner 4025306a91 disable optimizations in this directory for MSVC9. This avoids
an optimizer infinite loop on the file, PR6866.

llvm-svn: 101854
2010-04-20 01:11:32 +00:00
Sean Callanan 04cc307edd Table-driven disassembler for the X86 architecture (16-, 32-, and 64-bit
incarnations), integrated into the MC framework.  

The disassembler is table-driven, using a custom TableGen backend to 
generate hierarchical tables optimized for fast decode.  The disassembler 
consumes MemoryObjects and produces arrays of MCInsts, adhering to the 
abstract base class MCDisassembler (llvm/MC/MCDisassembler.h).

The disassembler is documented in detail in

- lib/Target/X86/Disassembler/X86Disassembler.cpp (disassembler runtime)
- utils/TableGen/DisassemblerEmitter.cpp (table emitter)

You can test the disassembler by running llvm-mc -disassemble for i386
or x86_64 targets.  Please let me know if you encounter any problems
with it.

llvm-svn: 91749
2009-12-19 02:59:52 +00:00
Daniel Dunbar 900f2ce31c Sketch structure for X86 disassembler.
llvm-svn: 89850
2009-11-25 06:53:08 +00:00