Commit Graph

1533 Commits

Author SHA1 Message Date
Gabor Greif 8a45d57a1d fix a typo
llvm-svn: 154920
2012-04-17 11:16:26 +00:00
Sirish Pande f02eebef2a Hexagon V5(Floating Point) support.
llvm-svn: 154828
2012-04-16 17:04:05 +00:00
Sebastian Pop 980920a321 use DEFAULT_SYSROOT
llvm-svn: 154792
2012-04-16 04:16:43 +00:00
David Blaikie 6f9f4ebc9f Correct indentation
llvm-svn: 154774
2012-04-15 21:22:10 +00:00
David Chisnall 3d127c79e8 Don't link lib[std]c++ when -nostdlib is specified (Solaris driver).
Patch by Dmitri Shubin!

llvm-svn: 154392
2012-04-10 11:49:50 +00:00
Evgeniy Stepanov 70cb3d623b Pass -march, -mcpu, -mfpu to linuxtools assembler.
llvm-svn: 154389
2012-04-10 09:05:40 +00:00
Rafael Espindola 9446d76e80 Fix an annoying little bug I found while debugging another LTO issue. Gold
requires the -plugin to come before any -plugin-opt options, we were passing
them the other way around. With this one can run (for example):

clang -o foo foo.c -O4 -Wl,-plugin-opt=generate-api-file

llvm-svn: 154357
2012-04-09 23:53:34 +00:00
Fariborz Jahanian 0568407543 objective-c: remove -fobjc-default-synthesize-properties from the driver.
cc1 option remains though to invoke default property synthesis.
// rdar://11209719

llvm-svn: 154334
2012-04-09 18:58:55 +00:00
Fariborz Jahanian ba8ef296e4 objective-c: Remove -fno-objc-default-synthesize-properties
as the driver option.
// rdar://11209719

llvm-svn: 154331
2012-04-09 18:20:28 +00:00
David Chisnall 58464d0fe1 Revert r154321, pending more discussion.
llvm-svn: 154327
2012-04-09 17:25:11 +00:00
David Chisnall 4ec2af2fab Add -fobjc-trace to emit a call before and after each Objective-C message send
for hooking in code flow visualisation applications.  

llvm-svn: 154321
2012-04-09 15:42:15 +00:00
Anton Korobeynikov a29e4627bc Factor out ARM floating ABI determination to new routine
llvm-svn: 154318
2012-04-09 13:38:30 +00:00
David Chisnall a27cf0e6e1 Make a modern Objective-C runtime the default target for *BSD. Don't yet change this on GNU/Linux, where the GCC runtime still tends to be used.
llvm-svn: 154315
2012-04-09 12:33:41 +00:00
Chandler Carruth c0c0455f55 Teach Clang about PIE compilations. This is the first step of PR12380.
First, this patch cleans up the parsing of the PIC and PIE family of
options in the driver. The existing logic failed to claim arguments all
over the place resulting in kludges that marked the options as unused.
Instead actually walk all of the arguments and claim them properly.

We now treat -f{,no-}{pic,PIC,pie,PIE} as a single set, accepting the
last one on the commandline. Previously there were lots of ordering bugs
that could creep in due to the nature of the parsing. Let me know if
folks would like weird things such as "-fPIE -fno-pic" to turn on PIE,
but disable full PIC. This doesn't make any sense to me, but we could in
theory support it.

Options that seem to have intentional "trump" status (-static, -mkernel,
etc) continue to do so and are commented as such.

Next, a -pie-level flag is threaded into the frontend, rigged to
a language option, and handled preprocessor, setting up the appropriate
defines. We'll now have the correct defines when compiling with -fpie.

The one place outside of the preprocessor that was inspecting the PIC
level (as opposed to the relocation model, which is set and handled
separately, yay!) is in the GNU ObjC runtime. I changed it to exactly
preserve existing behavior. If folks want to change its behavior in the
face of PIE, they can do that in a separate patch.

Essentially the only functionality changed here is the preprocessor
defines and bug-fixes to the argument management.

Tests have been updated and extended to test all of this a bit more
thoroughly.

llvm-svn: 154291
2012-04-08 16:40:35 +00:00
Simon Atanasyan 571d7bde3c MIPS: Pass -mabi option to the assmbler when compile MIPS targets.
llvm-svn: 154270
2012-04-07 22:31:29 +00:00
Simon Atanasyan 3b7589a6c3 MIPS: Move code calculates CPU and ABI names to the separate function to reuse this function later.
llvm-svn: 154269
2012-04-07 22:09:23 +00:00
Chad Rosier 706c235013 [driver] In general, the driver claims redundant args and uses the last arg.
However, the '-x' option has special handling and wasn't following this
paradigm.  Fix it to do so by claiming the arg as we parse the '-x' option.
rdar://11203340

llvm-svn: 154231
2012-04-07 00:01:31 +00:00
Simon Atanasyan 1e1e2e2d9a MIPS: Provide a correct path to the dynamic linker when build for MIPS 64-bit targets.
llvm-svn: 154200
2012-04-06 20:14:27 +00:00
Simon Atanasyan 2390aa1813 MIPS: Pass -EB/-EL argument to the assembler according to selected endian when compile for MIPS targets.
llvm-svn: 154195
2012-04-06 19:15:24 +00:00
Chandler Carruth 69a125bf02 Fix using Clang as a cross compiler installed on a host machine and not
inside of a sysroot targeting a system+sysroot which is "similar" or
"compatible" with the host system. This shows up when trying to build
system images on largely compatible hardware as-if fully cross compiled.

The problem is that previously we *perfectly* mimiced GCC here, and it
turns out GCC has a bug that no one has really stumbled across. GCC will
try to look in thy system prefix ('/usr/local' f.ex.) into which it is
instaled to find libraries installed along side GCC that should be
preferred to the base system libraries ('/usr' f.ex.). This seems not
unreasonable, but it has a very unfortunate consequence when combined
with a '--sysroot' which does *not* contain the GCC installation we're
using to complete the toolchain. That results in some of the host
system's library directories being searched during the link.

Now, it so happens that most folks doing stuff like this use
'--with-sysroot' and '--disable-multilib' when configuring GCC. Even
better, they're usually not cross-compiling to a target that is similar
to the host. As a result, searching the host for libraries doesn't
really matter -- most of the time weird directories get appended that
don't exist (no arm triple lib directory, etc). Even if you're
cross-compiling from 32-bit to 64-bit x86 or vice-versa, disabling
multilib makes it less likely that you'll actually find viable libraries
on the host. But that's just luck. We shouldn't rely on this, and this
patch disables looking in the system prefix containing the GCC
installation if that system prefix is *outside* of the sysroot. For
empty sysroots, this has no effect. Similarly, when using the GCC
*inside* of the sysroot, we still track wherever it is installed within
the sysroot and look there for libraries. But now we can use a cross
compiler GCC installation outside the system root, and only look for the
crtbegin.o in the GCC installation, and look for all the other libraries
inside the system root.

This should fix PR12478, allowing Clang to be used when building
a ChromiumOS image without polluting the image with libraries from the
host system.

llvm-svn: 154176
2012-04-06 16:32:06 +00:00
Nico Weber bea0d04f8c Honor -fno-pic, -fno-PIC, -fno-pie, -fno-PIE.
Review at http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120402/055759.html

llvm-svn: 154064
2012-04-04 23:00:14 +00:00
Chad Rosier 45619cbc03 [driver] When using the -mfpmath= option, add an error message when trying to
enable neonfp on a CPU that doesn't support NEON.
rdar://11108618

llvm-svn: 154061
2012-04-04 22:13:40 +00:00
Simon Atanasyan fa4dbbf12a Test commit to check commit access.
llvm-svn: 154056
2012-04-04 21:22:57 +00:00
Chad Rosier d1717c1aed Whitespace.
llvm-svn: 154050
2012-04-04 20:56:36 +00:00
Chad Rosier cfbfc5827c [driver] Add a static helper function for handling -mfpu= to remove some code
duplication.  No functional change intended.

llvm-svn: 154049
2012-04-04 20:51:35 +00:00
David Blaikie 747ff7e194 Reduce variable scope.
llvm-svn: 154047
2012-04-04 20:43:14 +00:00
Chad Rosier 1f0e52e361 [driver] Create a new -mfpmath= option, which is used to control whether clang
uses Neon instructions for single-precision FP.

-mfpmath=neon is analogous to passing llc -mattr=+neonfp.
-mfpmath=[vfp|vfp2|vfp3|vfp4] is analogous to passing llc -mattr=-neonfp.

rdar://11108618

llvm-svn: 154046
2012-04-04 20:39:32 +00:00
Fariborz Jahanian 7ebeedea6c modern objc translator. Add more
rewriter specific option to cc1 with -rewrite-objc.
// rdar://11143173

llvm-svn: 154037
2012-04-04 18:50:28 +00:00
Fariborz Jahanian b248221686 Remove unused argument.
llvm-svn: 154035
2012-04-04 18:28:00 +00:00
Fariborz Jahanian 73223bbd0a Use -rewrite-legacy-objc as clang argument for translating
objective-c's fragile abi, Use -rewrite-objc for translating 
objective-c's modern abi.  // rdar://11143173

llvm-svn: 153877
2012-04-02 15:59:19 +00:00
Bob Wilson 0090df24d7 Ignore unused --serialize-diagnostics option when using llvm-gcc.
llvm-gcc doesn't handle --serialize-diagnostics so when compiling i386
kernel/kext code with -Werror, you get an error about that option being
unused.  Claim the argument to prevent this from breaking builds.
<rdar://problem/11161933>

llvm-svn: 153854
2012-04-01 23:03:29 +00:00
Jim Grosbach 903e63fef3 ARM backend knows about cortex-m4. The front end should too.
llvm-svn: 153678
2012-03-29 19:53:34 +00:00
Chandler Carruth 8b4140d712 Move the emission of strict enum range metadata behind a flag (the same
flag as GCC uses: -fstrict-enums). There is a *lot* of code making
unwarranted assumptions about the underlying type of enums, and it
doesn't seem entirely reasonable to eagerly break all of it.

Much more importantly, the current state of affairs is *very* good at
optimizing based upon this information, which causes failures that are
very distant from the actual enum. Before we push for enabling this by
default, I think we need to implement -fcatch-undefined-behavior support
for instrumenting and trapping whenever we store or load a value outside
of the range. That way we can track down the misbehaving code very
quickly.

I discussed this with Rafael, and currently the only important cases he
is aware of are the bool range-based optimizations which are staying
hard enabled. We've not seen any issue with those either, and they are
much more important for performance.

llvm-svn: 153550
2012-03-27 23:58:37 +00:00
Chad Rosier 4fab82cda6 [driver] Fix unused argument warnings.
1. Don't short-circuit conditional statements that are checking flags.
Otherwise, the driver emits warnings about unused arguments.

2. -mkernel and -fapple-kext imply no exceptions, so claim exception related
 arguments now to avoid warnings about unused arguments.

rdar://11120518

llvm-svn: 153478
2012-03-26 22:04:46 +00:00
Chad Rosier d9d80e0844 [driver] -mkernel implies -fno-common, so claim the arg to avoid an unused
argument warning.
Part of rdar://11120518

llvm-svn: 153470
2012-03-26 21:35:40 +00:00
Chad Rosier f27e1c40dd [driver] -mkernel implies -fno-builtin, so claim the arg to avoid an unused
argument warning.
Part of rdar://11120518

llvm-svn: 153469
2012-03-26 21:29:17 +00:00
Akira Hatanaka 6976ec8551 Add support for MIPS' floating ABIs (hard, soft and single) to clang driver.
Patch by Simon Atanasyan.

llvm-svn: 153348
2012-03-23 23:07:09 +00:00
Bob Wilson 7f05ca38e4 Duplicated code is bad. At least make it consistent.
The getARMTargetCPU and getLLVMArchSuffixForARM functions exist in both
Toolchain.cpp and Tools.cpp.  This stuff needs a thorough overhaul.  In the
meantime, this patch at least makes them consistent.  One version had been
converted to use StringSwitch, and the other version had new Cortex M-series
processors added.

llvm-svn: 153202
2012-03-21 17:19:12 +00:00
Bob Wilson cc4ab9d9c0 For Darwin, do not let -mcpu override the -arch option. <rdar://11059238>
On Darwin the architecture and the corresponding Mach-O slice is typically
specified with -arch.  If not, it defaults to the current host architecture.
Do not use -mcpu to override the -arch value.  This is only an issue when
people need to use specialized code for a non-default CPU (hopefully guarded
by run-time checks to detect the current processor).  The -mcpu option is
still used for the -target-cpu option to clang, but this patch causes it to
not be used to set the architecture in the target triple.

llvm-svn: 153197
2012-03-21 16:31:37 +00:00
Nico Weber 8935578528 Fix a regression where ':' in CPLUS_INCLUDE_PATH and friends would no longer separate paths.
This regressed in r152583. Also add a test to make sure it doesn't regress again.

llvm-svn: 153034
2012-03-19 15:00:03 +00:00
Chad Rosier 9c76d24f9c [frontend] Fix how the frontend handles -fno-inline. AFAIK clang now matches
the behavior of gcc with respect to the -fno-inline and -fno-inline-functions
flags.

llvm-svn: 152861
2012-03-15 22:31:42 +00:00
David Blaikie ebcbe4b6aa Reapply r152745 (reverted in 152765) now that compiler-rt is fixed.
Original commit message:

Provide -Wnull-conversion separately from -Wconversion.

Like GCC, provide a NULL conversion to non-pointer conversion as a separate
flag, on by default. GCC's flag is "conversion-null" which we provide for
cross compatibility, but in the interests of consistency (with
-Wint-conversion, -Wbool-conversion, etc) the canonical Clang flag is called
-Wnull-conversion.

Patch by Lubos Lunak.
Review feedback by myself, Chandler Carruth, and Chad Rosier.

llvm-svn: 152774
2012-03-15 04:50:32 +00:00
Chad Rosier 2860fbb747 Revert r152745 as it's breaking the internal buildbots.
Abbreviated commit message:
Provide -Wnull-conversion separately from -Wconversion.

llvm-svn: 152765
2012-03-15 01:00:38 +00:00
David Blaikie 1ce8dbb93f Provide -Wnull-conversion separately from -Wconversion.
Like GCC, provide a NULL conversion to non-pointer conversion as a separate
flag, on by default. GCC's flag is "conversion-null" which we provide for
cross compatibility, but in the interests of consistency (with
-Wint-conversion, -Wbool-conversion, etc) the canonical Clang flag is called
-Wnull-conversion.

Patch by Lubos Lunak.
Review feedback by myself, Chandler Carruth, and Chad Rosier.

llvm-svn: 152745
2012-03-14 22:28:22 +00:00
Chad Rosier 864dfe11bd [driver] Clang should report an error for -faltivec on non-ppc.
rdar://10963572

llvm-svn: 152684
2012-03-13 23:45:51 +00:00
Chad Rosier d6f716ab2a [driver] Parse diagnostic args in the driver.
Previously, only diagnostics thrown by the cc1 process were
actually honoring the diagnostic options given on the command line,
like -Werror.

Reuse the existing code in Frontend currently used for cc1,
adjusting it to not interpret -Wl, linker flags as warnings.

Also fix a faulty test exposed by this change.
It wasn't actually testing anything, and was giving this warning:

clang-3: warning: argument unused during compilation: '-verify'

Which -Werror didn't turn into an error because it was output
by the driver, not the cc1 process, and diagnostic options
weren't parsed by the driver. And you couldn't see the warning
when running the test suite.

Fixes PR12181.
Patch by Dylan Noblesmith <nobled@dreamwidth.org>.

llvm-svn: 152660
2012-03-13 20:09:56 +00:00
David Chisnall ddc4c9d0a7 Tweak linkage order for solaris.
llvm-svn: 152627
2012-03-13 14:14:54 +00:00
NAKAMURA Takumi b5ee8a6deb [msvc] Honor %INCLUDE%. It should know essential search paths with vcvarsall.bat.
FYI,

On VS10, %INCLUDE% contains;
(VS10)\VC\INCLUDE
(VS10)\VC\ATLMFC\INCLUDE
(SDK70A)\include

On VS11,
(VS11)\VC\INCLUDE
(VS11)\VC\ATLMFC\INCLUDE
(SDK80)\include\shared
(SDK80)\include\um
(SDK80)\include\winrt

FIXME: It may be enabled also on mingw.
llvm-svn: 152589
2012-03-13 00:02:21 +00:00
Bill Wendling c0938f3fdb Address some of the concerns by Chandler.
* s/AddDirectoryList/addDirectoryList/
* Move the call to ::getenv into the function.
* FileCheck-ize the testcase.

llvm-svn: 152583
2012-03-12 22:10:06 +00:00
Bill Wendling adbeb9f38d Update FIXME.
llvm-svn: 152579
2012-03-12 21:24:57 +00:00