https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54089
--- Comment #54 from Alexander Klepikov <klepikov.alex+bugs at gmail dot com>
---
Regarding testsuite. There's execute fails, but this is due to lack of
multilib. I'll rebuild and retest.
There's also fail in pr64345-1.c, in this function:
typedef signed char int8_t;
int test_int8_t__shift_7_8 (int8_t* x) {
return ((*x >> 7) ^ 1) & 1;
}
Clean GCC:
.file "pr64345-1-test.c"
.text
.text
.align 1
.align 2
.global _test_int8_t__shift_7_8
.type _test_int8_t__shift_7_8, @function
_test_int8_t__shift_7_8:
mov.l .L4,r1
sts.l pr,@-r15
jsr @r1
mov.b @r4,r4
mov r4,r0
tst #1,r0
movt r0
lds.l @r15+,pr
rts
nop
.L5:
.align 2
.L4:
.long ___ashiftrt_r4_7
.size _test_int8_t__shift_7_8, .-_test_int8_t__shift_7_8
.ident "GCC: (GNU) 13.1.0"
Patched GCC:
.file "pr64345-1-test.c"
.text
.text
.align 1
.align 2
.global _test_int8_t__shift_7_8
.type _test_int8_t__shift_7_8, @function
_test_int8_t__shift_7_8:
mov.b @r4,r1
sts.l pr,@-r15
cmp/pz r1
movt r0
lds.l @r15+,pr
rts
nop
.size _test_int8_t__shift_7_8, .-_test_int8_t__shift_7_8
.ident "GCC: (GNU) 13.1.0"
But it looks more like it's not a fail, but an optimization.
But also there's tests that pass on patched but fail on clean. I'll take a
closer look on them later after GCC and multilibs rebuild.
