https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69206
Bug ID: 69206
Summary: testsuite/gcc.c-torture/execute/alias-2.c fails on
aarch64-linux-gnu at -O1 and above
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
The tree level looks correct:
b[off.0_2] = 1;
a[off.0_2] = 2;
_5 = b[off.0_2];
if (_5 != 2)
goto <bb 3>;
else
goto <bb 4>;
<bb 3>:
__builtin_abort ();
But the final output is not:
main:
stp x29, x30, [sp, -16]!
add x29, sp, 0
adrp x0, off
ldrsw x2, [x0, #:lo12:off]
adrp x1, b
adrp x0, .LANCHOR0
add x1, x1, :lo12:b
mov w4, 1
add x0, x0, :lo12:.LANCHOR0
str w4, [x1, x2, lsl 2]
mov w3, 2
str w3, [x0, x2, lsl 2]
bl abort
