Evgeniy, Unfortunately, we need to be much more careful here. While gas for ARM does support -mcpu, -march and -mfpu, this is not true for other ISAs. Looking at the man page, it seems that the supported flags are:
ARM: -mcpu=, -march=, -mfpu= i386: -march= (-mtune=: should we map -mcpu= to -mtune=?) MIPS: (same as i386) PowerPC: supports cpu, but as -m<cpu> (meaning -m403|-m405|-mppc64|...) SPARC: supports arch, but as -xarch= How do you think we should fix this? -Hal On Tue, 10 Apr 2012 09:05:41 -0000 Evgeniy Stepanov <eugeni.stepa...@gmail.com> wrote: > Author: eugenis > Date: Tue Apr 10 04:05:40 2012 > New Revision: 154389 > > URL: http://llvm.org/viewvc/llvm-project?rev=154389&view=rev > Log: > Pass -march, -mcpu, -mfpu to linuxtools assembler. > > Added: > cfe/trunk/test/Driver/linux-as.c > Modified: > cfe/trunk/lib/Driver/Tools.cpp > > Modified: cfe/trunk/lib/Driver/Tools.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Tools.cpp?rev=154389&r1=154388&r2=154389&view=diff > ============================================================================== > --- cfe/trunk/lib/Driver/Tools.cpp (original) +++ > cfe/trunk/lib/Driver/Tools.cpp Tue Apr 10 04:05:40 2012 @@ -5089,6 > +5089,10 @@ CmdArgs.push_back("-EL"); > } > > + Args.AddLastArg(CmdArgs, options::OPT_march_EQ); > + Args.AddLastArg(CmdArgs, options::OPT_mcpu_EQ); > + Args.AddLastArg(CmdArgs, options::OPT_mfpu_EQ); > + > Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, > options::OPT_Xassembler); > > > Added: cfe/trunk/test/Driver/linux-as.c > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/linux-as.c?rev=154389&view=auto > ============================================================================== > --- cfe/trunk/test/Driver/linux-as.c (added) +++ > cfe/trunk/test/Driver/linux-as.c Tue Apr 10 04:05:40 2012 @@ -0,0 > +1,31 @@ +// Check passing options to the assembler for ARM targets. > +// > +// RUN: %clang -target arm-linux -### \ > +// RUN: -no-integrated-as -c %s 2>&1 \ > +// RUN: | FileCheck -check-prefix=ARM %s > +// CHECK-ARM: as{{(.exe)?}}" > +// > +// RUN: %clang -target arm-linux -mcpu=cortex-a8 -### \ > +// RUN: -no-integrated-as -c %s 2>&1 \ > +// RUN: | FileCheck -check-prefix=ARM-MCPU %s > +// CHECK-ARM-MCPU: as{{(.exe)?}}" "-mcpu=cortex-a8" > +// > +// RUN: %clang -target arm-linux -mfpu=neon -### \ > +// RUN: -no-integrated-as -c %s 2>&1 \ > +// RUN: | FileCheck -check-prefix=ARM-MFPU %s > +// CHECK-ARM-MFPU: as{{(.exe)?}}" "-mfpu=neon" > +// > +// RUN: %clang -target arm-linux -march=armv7-a -### \ > +// RUN: -no-integrated-as -c %s 2>&1 \ > +// RUN: | FileCheck -check-prefix=ARM-MARCH %s > +// CHECK-ARM-MARCH: as{{(.exe)?}}" "-march=armv7-a" > +// > +// RUN: %clang -target arm-linux -mcpu=cortex-a8 -mfpu=neon > -march=armv7-a -### \ +// RUN: -no-integrated-as -c %s 2>&1 \ > +// RUN: | FileCheck -check-prefix=ARM-ALL %s > +// CHECK-ARM-ALL: as{{(.exe)?}}" "-march=armv7-a" "-mcpu=cortex-a8" > "-mfpu=neon" +// > +// RUN: %clang -target armv7-linux -mcpu=cortex-a8 -### \ > +// RUN: -no-integrated-as -c %s 2>&1 \ > +// RUN: | FileCheck -check-prefix=ARM-TARGET %s > +// CHECK-ARM-TARGET: as{{(.exe)?}}" "-mfpu=neon" "-mcpu=cortex-a8" > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits -- Hal Finkel Postdoctoral Appointee Leadership Computing Facility Argonne National Laboratory _______________________________________________ cfe-commits mailing list cfe-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits
