https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90813
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |segher at gcc dot gnu.org
--- Comment #11 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
Looking at the generated POWER assembly with -O2 -fverbose-asm
(on gcc135), one gets
addis 10,2,.LC1@toc@ha # tmp142,,
ld 10,.LC1@toc@l(10) # tmp142,, tmp142
which loads gdb with a reasonable-looking address, and then later
# proc_ptr_51.f90:35: res => c_()
ld 12,0(10) # c_, c_
which loads the value 0x0 into r12, so the later
# proc_ptr_51.f90:35: res => c_()
mtctr 12 #,
branches to a NULL pointer.
I don't read POWER assembly all that well (and have no
idea what the @toc@ things mean).
Segher, could you maybe take a look at what happens here?
