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comparison gcc/testsuite/gcc.dg/20030721-1.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 /* { dg-options "-O2" } */
2 /* PR optimization/11536 */
3 /* Origin: samal@kam.mff.cuni.cz <samal@kam.mff.cuni.cz> */
4 /* Testcase by Andrew Pinski <pinskia@physics.uc.edu> */
5
6 /* Verify that the loop optimizer doesn't use moving targets
7 to calculate the number of iterations of a loop. */
8
9 extern void abort(void);
10
11 void foo(int) __attribute__((__noinline__));
12
13 void foo(int i)
14 {
15 abort();
16 }
17
18 int main()
19 {
20 int i;
21 int first= 0;
22 int last= 0;
23
24 while (last<3) {
25 last = first;
26
27 while (first<=last) {
28 first++;
29
30 for (i=0;i<3;i++)
31 last++;
32
33 if (last>10)
34 return 0;
35 }
36
37 foo(first);
38 }
39
40 return 0;
41 }