This patch introduces a new cmake variable: CLANG_DEFAULT_RTLIB, thru
which we can specify a default value for -rtlib (libgcc or
compiler-rt) at build time, just like how we set the default C++
stdlib thru CLANG_DEFAULT_CXX_STDLIB.
With these two options, we can configure clang to build binaries on
Linux that have no runtime dependence on any gcc libs (libstdc++ or
libgcc_s).
Patch by Lei Zhang!
Differential Revision: https://reviews.llvm.org/D22663
llvm-svn: 276848
With PCH+Module, sometimes compiler gives a hard error:
Module file ‘<some-file path>.pcm' is out of date and needs to be rebuilt
This happens when we have a pch importing a module and the module gets
overwritten by another compiler instance after we build the pch (one example is
that both compiler instances hash to the same pcm file but use different
diagnostic options). When we try to load the pch later on, the compiler notices
that the imported module is out of date (modification date, size do not match)
but it can't handle this out of date pcm (i.e it does not know how to rebuild
the pch).
This commit introduces a new command line option so for PCH + module, we can
turn on this option and if two compiler instances only differ in diagnostic
options, the latter instance will not invalidate the original pcm.
rdar://26675801
Differential Revision: http://reviews.llvm.org/D22773
llvm-svn: 276769
For assembly files without .intel_syntax or .att_syntax directives, allow the
-masm= flag to supply a default assembly dialect. For example,
C:\TMP> type intel.s
.text
mov al,0
C:\TMP> clang -masm=intel -c intel.s
Without this patch, one would need to pass an "-mllvm -x86-asm-syntax=" flag
directly to the backend.
C:\TMP> clang -mllvm --x86-asm-syntax=intel -c intel.s
Differentials Review: http://reviews.llvm.org/D22285
llvm-svn: 275877
Summary:
This patch replaces the CUDA specific action by a generic offload action. The offload action may have multiple dependences classier in “host” and “device”. The way this generic offloading action is used is very similar to what is done today by the CUDA implementation: it is used to set a specific toolchain and architecture to its dependences during the generation of jobs.
This patch also proposes propagating the offloading information through the action graph so that that information can be easily retrieved at any time during the generation of commands. This allows e.g. the "clang tool” to evaluate whether CUDA should be supported for the device or host and ptas to easily retrieve the target architecture.
This is an example of how the action graphs would look like (compilation of a single CUDA file with two GPU architectures)
```
0: input, "cudatests.cu", cuda, (host-cuda)
1: preprocessor, {0}, cuda-cpp-output, (host-cuda)
2: compiler, {1}, ir, (host-cuda)
3: input, "cudatests.cu", cuda, (device-cuda, sm_35)
4: preprocessor, {3}, cuda-cpp-output, (device-cuda, sm_35)
5: compiler, {4}, ir, (device-cuda, sm_35)
6: backend, {5}, assembler, (device-cuda, sm_35)
7: assembler, {6}, object, (device-cuda, sm_35)
8: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {7}, object
9: offload, "device-cuda (nvptx64-nvidia-cuda:sm_35)" {6}, assembler
10: input, "cudatests.cu", cuda, (device-cuda, sm_37)
11: preprocessor, {10}, cuda-cpp-output, (device-cuda, sm_37)
12: compiler, {11}, ir, (device-cuda, sm_37)
13: backend, {12}, assembler, (device-cuda, sm_37)
14: assembler, {13}, object, (device-cuda, sm_37)
15: offload, "device-cuda (nvptx64-nvidia-cuda:sm_37)" {14}, object
16: offload, "device-cuda (nvptx64-nvidia-cuda:sm_37)" {13}, assembler
17: linker, {8, 9, 15, 16}, cuda-fatbin, (device-cuda)
18: offload, "host-cuda (powerpc64le-unknown-linux-gnu)" {2}, "device-cuda (nvptx64-nvidia-cuda)" {17}, ir
19: backend, {18}, assembler
20: assembler, {19}, object
21: input, "cuda", object
22: input, "cudart", object
23: linker, {20, 21, 22}, image
```
The changes in this patch pass the existent regression tests (keeps the existent functionality) and resulting binaries execute correctly in a Power8+K40 machine.
Reviewers: echristo, hfinkel, jlebar, ABataev, tra
Subscribers: guansong, andreybokhanko, tcramer, mkuron, cfe-commits, arpith-jacob, carlo.bertolli, caomhin
Differential Revision: https://reviews.llvm.org/D18171
llvm-svn: 275645
The test currently fails if the name of the Clang binary doesn't contain "clang".
This patch removes that requirement, as some environments may choose to run the test with a differently named binary. This shouldn't make the test any less strict -- the only place where the flags we're searching for can really occur is the Clang command line.
Patch by Martin Böhme!
Differential Revision: https://reviews.llvm.org/D22359
llvm-svn: 275428
Also fixes strict-aliasing option to only be allowed when OpenCL Version 1.0. Added testcase in test/Frontend/opencl-blocks.cl.
Patch by Aaron En Ye Shi.
Differential Revision: http://reviews.llvm.org/D22170
llvm-svn: 275318
Original Commit Message
Driver: Stop linking to C++ when using sanitizers on Darwin
Sanitizers on Darwin are built as dynamic libraries, not static libraries.
Sanitizers will have their C++ dependency satisfied internally (LC_LOAD_DYLIB)
in the libclang_rt dylib. As long as the sanitizers stay dynamic and not static,
linking against C++ when enabling a sanitizer becomes over linkage.
Patch by Dave Lee!
llvm-svn: 275032
MASM (ML.exe and ML64.exe) and older versions of MSVC (CL.exe) support a
flag called /Zd which is more-or-less -gline-tables-only.
It seems nicer to support this flag instead of exposing
-gline-tables-only.
llvm-svn: 274991
Add OCL option -cl-no-signed-zeros to driver options.
Also added to opencl.cl testcases.
Patch by Aaron En Ye Shi.
Differential Revision: http://reviews.llvm.org/D22067
llvm-svn: 274923
Sanitizers on Darwin are built as dynamic libraries, not static libraries.
Sanitizers will have their C++ dependency satisfied internally (LC_LOAD_DYLIB)
in the libclang_rt dylib. As long as the sanitizers stay dynamic and not static,
linking against C++ when enabling a sanitizer becomes over linkage.
Patch by Dave Lee!
llvm-svn: 274797
Summary:
Raise an error if you're using a CUDA installation that's too old for
the requested architectures. In practice, this means that you need a
CUDA 8 install to compile for sm_6*.
Reviewers: tra
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D21869
llvm-svn: 274781
Summary: This change exposes the recently added LEON CPUs (D19359) in the LLVM Sparc backend to Clang, allowing the cpu's to be selected using the -mcpu flag.
Reviewers: jyknight, lero_chris
Subscribers: jyknight, cfe-commits
Differential Revision: http://reviews.llvm.org/D21683
llvm-svn: 274487
Allow -cl-std and other standard -cl- options from cc1 to driver.
Added a test for the options moved.
Patch by Aaron En Ye Shi.
Differential Revision: http://reviews.llvm.org/D21031
llvm-svn: 274150
This reverts commit r269709.
r262285 changed this deliberately so that the test would not be
sensitive to which binaries are in the same directory as clang.
See the commit message of that commit for more background.
llvm-svn: 274084
The PIC and PIE levels are not independent. In fact, if PIE is defined
it is always the same as PIC.
This is clear in the driver where ParsePICArgs returns a PIC level and
a IsPIE boolean. Unfortunately that is currently lost and we pass two
redundant levels down the pipeline.
This patch keeps a bool and a PIC level all the way down to codegen.
llvm-svn: 273566
We do pass -pic-level to cc1 when targeting darwin. Given that codegen
itself doesn't use it, the only difference is whether __PIE__ and
__pie__ are defined.
llvm-svn: 273450
Add support for /Ob1 (and equivalent -finline-hint-functions), which enable
inlining only for functions marked inline, either explicitly (via inline
keyword, for example), or implicitly (function definition in class body,
for example).
This works by enabling inlining pass, and adding noinline attribute to
every function not marked inline.
Patch by Rudy Pons <rudy.pons@ilod.org>!
Differential Revision: http://reviews.llvm.org/D20647
llvm-svn: 273440
Add -mno-iamcu option to:
1) Countervail -miamcu option easily
2) Be compatible with GCC which supports this option
Differential Revision: http://reviews.llvm.org/D21469
llvm-svn: 273147
This mirrors the many other -i*after options to insert a new system search
directory at the end of the search path. This makes it possible to actually
inject a search path after the resource dir. This option is similar in spirit
to the /imsvc option in the clang-cl driver. This is needed to properly use the
driver for Windows targets where the clang headers wrap some of the system
headers.
This concept is actually useful on other targets (e.g. Linux) and would be
really easy to support on the core toolchain.
llvm-svn: 273016
Fix a regression which forbids using -std=cl|CL1.1|CL1.2|CL2.0 in driver.
Allow -std and -cl-std={cl|CL}{|1.1|1.2|2.0}.
Differential Revision: http://reviews.llvm.org/D20630
llvm-svn: 273015
Summary:
Some GCC 5 installations store the libstdc++ includes and GCC-specific files in paths without
the minor part of the version number, such as
/usr/include/c++/5
/usr/lib64/gcc/x86_64-suse-linux/5
Reviewers: cfe-commits, thiagomacieira, jroelofs
Subscribers: tinti, jroelofs
Differential Revision: http://reviews.llvm.org/D14727
llvm-svn: 273012
This is the last patch required to support compilation for Intel MCU target (e.g. Intel(R) Quark(TM) micro controller D 2000).
When IAMCU triple is used:
* Use IAMCU linker output format
* Link with IAMCU crt objects
* Link with IAMCU libraries
Differential Revision: http://reviews.llvm.org/D20675
llvm-svn: 272885
This is the second patch required to support compilation for Intel MCU target (e.g. Intel(R) Quark(TM) micro controller D 2000).
When IAMCU triple is used:
* Recognize and use IAMCU GCC toolchain
* Set up include paths
* Forbid C++
Differential Revision: http://reviews.llvm.org/D19274
llvm-svn: 272883
Summary:
Previously if you did e.g.
$ clang -march=haswell -x cuda foo.cu
we would pass "-march=haswell -march=sm_20" down to the ptxas tool.
This causes it to assert, and rightly so!
Reviewers: tra
Subscribers: cfe-commits, echristo
Differential Revision: http://reviews.llvm.org/D21419
llvm-svn: 272857
Renato Golin