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Turning IAS on by default on ARM/Thumb 

This is an experimental feature, where -integrated-as will be
on by default on ARM/Thumb. We aim to detect the missing features
so that the next release is stable.

Updating the ReleaseNotes, too.

Also moving the AArch64 into the same place.

llvm-svn: 197024
This commit is contained in:
Renato Golin 2013-12-11 09:35:10 +00:00
parent ae5b1d4eac
commit 1588cdaa4b
4 changed files with 16 additions and 10 deletions
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11
clang/docs/ReleaseNotes.rst
View File

@ -64,7 +64,16 @@ New Compiler Flags
C Language Changes in Clang
---------------------------
...
The integrated assembler is now turned on by default on ARM (and Thumb),
so the use of the option `-integrated-as` is now redundant on those
architectures. This is an important move to both *eat our own dog food*
and to ease cross-compilation tremendously.
We are aware of the problems that this may cause for code bases that
rely on specific GNU syntax or extensions, and we're working towards
getting them all fixed. Please, report bugs or feature requests if
you find anything. In the meantime, use `-no-integrated-as` to revert
back the call to GNU assembler.
C11 Feature Support
^^^^^^^^^^^^^^^^^^^

5
clang/lib/Driver/ToolChains.cpp
View File

@ -1611,7 +1611,10 @@ bool Generic_GCC::isPICDefaultForced() const {
bool Generic_GCC::IsIntegratedAssemblerDefault() const {
return getTriple().getArch() == llvm::Triple::x86 ||
getTriple().getArch() == llvm::Triple::x86_64;
getTriple().getArch() == llvm::Triple::x86_64 ||
getTriple().getArch() == llvm::Triple::aarch64 ||
getTriple().getArch() == llvm::Triple::arm ||
getTriple().getArch() == llvm::Triple::thumb;
}
/// Hexagon Toolchain

6
clang/lib/Driver/ToolChains.h
View File

@ -413,12 +413,6 @@ public:
Generic_ELF(const Driver &D, const llvm::Triple &Triple,
const llvm::opt::ArgList &Args)
: Generic_GCC(D, Triple, Args) {}
virtual bool IsIntegratedAssemblerDefault() const {
if (getTriple().getArch() == llvm::Triple::aarch64)
return true;
return Generic_GCC::IsIntegratedAssemblerDefault();
}
};
class LLVM_LIBRARY_VISIBILITY AuroraUX : public Generic_GCC {

4
clang/test/Driver/freebsd.c
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@ -97,12 +97,12 @@
// CHECK-NORMAL: crt1.o
// CHECK-NORMAL: crtbegin.o
// RUN: %clang %s -### -o %t.o -target arm-unknown-freebsd10.0 2>&1 \
// RUN: %clang %s -### -o %t.o -target arm-unknown-freebsd10.0 -no-integrated-as 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-ARM %s
// CHECK-ARM: clang{{.*}}" "-cc1"{{.*}}" "-fsjlj-exceptions"
// CHECK-ARM: as{{.*}}" "-mfpu=softvfp"{{.*}}"-matpcs"
// RUN: %clang %s -### -o %t.o -target arm-gnueabi-freebsd10.0 2>&1 \
// RUN: %clang %s -### -o %t.o -target arm-gnueabi-freebsd10.0 -no-integrated-as 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-ARM-EABI %s
// CHECK-ARM-EABI-NOT: clang{{.*}}" "-cc1"{{.*}}" "-fsjlj-exceptions"
// CHECK-ARM-EABI: as{{.*}}" "-mfpu=softvfp" "-meabi=5"