On Wed, Sep 01, 2021 at 05:17:26PM +1000, Michael Ellerman wrote:
> Segher Boessenkool writes:
> > On Tue, Aug 31, 2021 at 11:27:20PM +1000, Michael Ellerman wrote:
> >> Nathan filed an LLVM bug [2], in which Eli Friedman explained that "if
> >> you pass a value of a type that's narrower than a re
Segher Boessenkool writes:
> On Tue, Aug 31, 2021 at 11:27:20PM +1000, Michael Ellerman wrote:
>> Nathan filed an LLVM bug [2], in which Eli Friedman explained that "if
>> you pass a value of a type that's narrower than a register to an inline
>> asm, the high bits are undefined". In this case we
Hi!
On Tue, Aug 31, 2021 at 11:27:20PM +1000, Michael Ellerman wrote:
> Nathan filed an LLVM bug [2], in which Eli Friedman explained that "if
> you pass a value of a type that's narrower than a register to an inline
> asm, the high bits are undefined". In this case we are passing a bool
> to the
On Tue, Aug 31, 2021 at 11:27:20PM +1000, Michael Ellerman wrote:
> In commit 1e688dd2a3d6 ("powerpc/bug: Provide better flexibility to
> WARN_ON/__WARN_FLAGS() with asm goto") we changed WARN_ON(). Previously
> it would take the warning condition, x, and double negate it before
> converting the re
In commit 1e688dd2a3d6 ("powerpc/bug: Provide better flexibility to
WARN_ON/__WARN_FLAGS() with asm goto") we changed WARN_ON(). Previously
it would take the warning condition, x, and double negate it before
converting the result to int, and passing that int to the underlying
inline asm. ie:
#de
