Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/gcc.dg/pr44838.c @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/gcc.dg/pr44838.c Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,33 @@ +/* PR rtl-optimization/44838 */ +/* { dg-do run } */ +/* { dg-options "-O2 -funroll-loops" } */ + +extern void abort (); + +void +foo (int *a, int n) +{ + int *lasta = a + n; + for (; a != lasta; a++) + { + *a *= 2; + a[1] = a[-1] + a[-2]; + } +} + +int a[16]; +int ref[16] = { 0, 1, 4, 2, 10, 12, 24, 44, + 72, 136, 232, 416, 736, 1296, 2304, 2032 }; + +int +main () +{ + int i; + for (i = 0; i < 16; i++) + a[i] = i; + foo (a + 2, 16 - 3); + for (i = 0; i < 16; i++) + if (ref[i] != a[i]) + abort (); + return 0; +}