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comparison gcc/testsuite/gcc.dg/pr44404.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* PR rtl-optimization/44404
2 foo() used to be miscompiled on ARM due to a bug in auto-inc-dec.c,
3 which resulted in "strb r1, [r1], #-36". */
4
5 /* { dg-do run } */
6 /* { dg-options "-O2 -fno-unroll-loops" } */
7
8 extern char *strcpy (char *, const char *);
9 extern int strcmp (const char*, const char*);
10 extern void abort (void);
11
12 char buf[128];
13
14 void __attribute__((noinline))
15 bar (int a, const char *p)
16 {
17 if (strcmp (p, "0123456789abcdefghijklmnopqrstuvwxyz") != 0)
18 abort ();
19 }
20
21 void __attribute__((noinline))
22 foo (int a)
23 {
24 if (a)
25 bar (0, buf);
26 strcpy (buf, "0123456789abcdefghijklmnopqrstuvwxyz");
27 bar (0, buf);
28 }
29
30 int
31 main (void)
32 {
33 foo (0);
34 return 0;
35 }