On Fri, Nov 03, 2017 at 06:31:56PM +0000, Mark Rutland wrote: > On Fri, Nov 03, 2017 at 10:11:52AM -0700, Sami Tolvanen wrote: > > From: Greg Hackmann <[email protected]> > > > > LLVM bug 30792 causes clang's AArch64 backend to crash compiling > > arch/arm64/crypto/aes-ce-cipher.c. Replacing -mgeneral-regs-only with > > -mno-implicit-float is the suggested workaround. > > > > Signed-off-by: Greg Hackmann <[email protected]> > > Cc: Matthias Kaehlcke <[email protected]> > > Signed-off-by: Sami Tolvanen <[email protected]> > > Just to check, what happens if you pass both to clang?
Apparently not. However, we can do: -KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr) $(brokengasinst) +KBUILD_CFLAGS += $(lseinstr) $(brokengasinst) +# Clang workaround for https://bugs.llvm.org/show_bug.cgi?id=30792 +KBUILD_CFLAGS += $(call cc-option, -mno-implicit-float, -mgeneral-regs-only) Thanks, Mark.
