On Tue, Feb 28, 2023 at 07:34:59PM +0000, Jiaxun Yang wrote: > Clang is unable to handle the situation that a chunk of inline > assembly ends with a compat branch instruction and then compiler > generates another control transfer instruction immediately after > this compat branch. The later instruction will end up in forbidden > slot and cause exception. > > Workaround by add a option to control the use of compact branch. > Currently it's selected by CC_IS_CLANG and hopefully we can change > it to a version check in future if clang manages to fix it. > > Fix boot on boston board. > > Link: https://github.com/llvm/llvm-project/issues/61045 > Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> > Acked-by: Nathan Chancellor <nathan@xxxxxxxxxx> > --- > v2: Add Link tag to LLVM bug > v3: Docuement issue link in Kconfig as well > --- > arch/mips/Kconfig | 4 ++++ > arch/mips/include/asm/asm.h | 2 +- > 2 files changed, 5 insertions(+), 1 deletion(-) applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
