https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117688
--- Comment #3 from Krister Walfridsson <kristerw at gcc dot gnu.org> ---
The test still fails for me when running on qemu with a compiler built from
today's source code (64d31343d4676d8ceef9232dcd33824bc2eff330).
FWIW, the function foo is generated as:
foo:
lui a4,%hi(y)
lui a5,%hi(x)
lbu a5,%lo(x)(a5)
lbu a3,%lo(y)(a4)
lui a2,%hi(result)
sub a4,a5,a3
xor a3,a5,a3
xor a5,a5,a4
and a5,a5,a3
srli a5,a5,7
neg a3,a5
addi a5,a5,-1
and a5,a4,a5
andi a4,a3,127
or a5,a5,a4
sb a5,%lo(result)(a2)
ret
This is identical to the code generated in Compiler Explorer for the trunk
compiler (https://godbolt.org/z/Krvd33K1j) so I do not think I have messed up
my environment...
