https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87871
Wilco <wilco at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |wilco at gcc dot gnu.org
--- Comment #8 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #5)
> The first one just needs an xfail. I don't know if it should be *-*-* there
> or only arm*-*-* should be added.
>
> The other two need some debugging by someone who knows the target and/or
> these tests.
The previous code for Arm was:
cbz r0, .L5
push {r4, lr}
mov r4, r0
bl foo
movw r2, #:lower16:.LANCHOR0
movt r2, #:upper16:.LANCHOR0
add r4, r4, r0
str r4, [r2]
pop {r4, pc}
.L5:
movs r0, #1
bx lr
Now it fails to shrinkwrap:
push {r4, lr}
mov r4, r0
cmp r4, #0
moveq r0, #1
beq .L3
bl foo
ldr r2, .L7
add r3, r4, r0
str r3, [r2]
.L3:
pop {r4, lr}
bx lr
It seems shrinkwrapping is more random, sometimes it's done as expected,
sometimes it is not. It was more consistent on older GCC's.
