re PR tree-optimization/33291 (a+=2; a+=2 not simplified to a+=4; with -O3 ...
[gcc.git] / gcc / testsuite / gcc.dg / tree-ssa / scev-2.c
1 /* PR tree-optimization/19899 */
2 /* Decrementing a floating-point variable in a loop caused an ICE. */
3
4 /* { dg-do run } */
5 /* { dg-options "-O -ftree-vectorize" } */
6
7 extern void abort (void);
8
9 int main()
10 {
11 double a = 20;
12 int i;
13
14 for (i = 0; i < 10; ++i)
15 a -= 2;
16
17 if (a)
18 abort();
19 return 0;
20 }