https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38644
Satish M <satishbmsce at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |satishbmsce at gmail dot com
--- Comment #72 from Satish M <satishbmsce at gmail dot com> ---
This bug still exists in GCC 4.8.2 ARM. It can reproduced by adding one more
argument in 'doStreamReadBlock' function in test case.
/x86_64-unknown-linux-gnu/bin/gcc -B /x86_64-unknown-linux-gnu/bin -msoft-float
-marm -mcpu=cortex-a9 -march=armv7-a -mno-thumb-interwork -mlong-calls
-mno-unaligned-access -O2 test.c
extern int doStreamReadBlock (int *, char *, int size, int, int);
char readStream (int *s)
{
char c = 0;
doStreamReadBlock (s, &c, 1, *s, 22);
return c;
}
00000000 <readStream>:
0: e1a0c00d mov ip, sp
4: e3a02000 mov r2, #0
8: e92dd800 push {fp, ip, lr, pc}
c: e24cb004 sub fp, ip, #4
10: e24dd008 sub sp, sp, #8
14: e24b100c sub r1, fp, #12
18: e3a0c016 mov ip, #22
1c: e5612001 strb r2, [r1, #-1]!
20: e3a02001 mov r2, #1
24: e5903000 ldr r3, [r0]
28: e58dc000 str ip, [sp]
2c: e59fc00c ldr ip, [pc, #12] ; 40 <readStream+0x40>
30: e12fff3c blx ip
34: e24bd00c sub sp, fp, #12 <---- Stack frame
de-allocated
38: e55b000d ldrb r0, [fp, #-13] <---- Accessing stack.
3c: e89da800 ldm sp, {fp, sp, pc}
40: 00000000 andeq r0, r0, r0
