function attributes. There are predefined macros that are defined when stack
protectors are used: __SSP__=1 with -fstack-protector and __SSP_ALL__=2 with
-fstack-protector-all.
llvm-svn: 74405
- Apologies for the extremely gross code duplication, I want to get
this working and then decide how to get this information out of the
back end.
- This replaces -m[no-]sse4[12] by -m[no-]sse4, it appears gcc
doesn't distinguish them?
- -msse, etc. now properly disable/enable related features.
- Don't always define __SSE3__...
- The main missing functionality bit here is that we don't initialize
the features based on the CPU for all -march options.
llvm-svn: 71117
- Default to yonah on Darwin (to get SSE3).
- Default to Pentium4 (32-bit) and x86-64 (64-bit) on
non-Darwin. Welcome to the 21st century.
llvm-svn: 71069
- This is a WIP...
- This adds -march= handling to the driver, and fixes the defaulting
of -mcpu on Darwin (which was using the wrong test).
Instead of handling -m{sse, ...} in the driver, pass them to clang-cc as
-target-feature [+-]name
In clang-cc, communicate with the (clang) target to discover the legal
features of a target, and the features which are enabled based on
-mcpu. This is currently hardcoded just enough to not be a feature
regression, we need to get this information from the backend's
TableGen information somehow.
This is used to construct the full list of features which are being
used, which is in turn used to initialize the predefines.
llvm-svn: 71061
Let me know if I messed up for some target. Note that for Windows, we
should be able to support it (MSVC supports "__declspec(thread)"), but
I'm pretty sure LLVM doesn't know how to generate the correct code.
llvm-svn: 69552
functions in glibc header files that use FP Stack inline asm which the
backend can't deal with (PR879).
This "fixes" PR3970 for linux. Other affected systems should do similar
things. Maybe this should just go to the general i386/x86-64 sections?
llvm-svn: 69527
- Patch by Shantonu Sen (with a minor tweak to split out
getDarwin{OSX,IPhoneOS}Defines)!
- <rdar://problem/6776277> Need clang-cc/ccc-analyzer support for
-miphoneos-version-min
llvm-svn: 68815
and are even set in C mode. As such, move them to Targets.cpp.
__OBJC_GC__ is also darwin specific, but seems reasonable to always
define it when in objc-gc mode.
This fixes rdar://6761450
llvm-svn: 68494
- Notably, set section on cfstring literal string data (for now, this
is done everywhere because it matches what we were already doing
for the CFString data itself)
- <rdar://problem/6599098> [irgen] linker requires objc string data
to go into cstring
llvm-svn: 68160
and defining target-specific macros based on them (like __SSE3__ and
friends). After extensive discussion with Daniel, this work will need
driver support, which will translate things like -msse3 into a -mattr
feature. Until this work is done, the code in clang.cpp is disabled and
the X86TargetInfo ctor still defaults to SSE2. With these two things
changed, this code will work. PR3634
llvm-svn: 65966
