Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/alias-10.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* For PR tree-optimization/14784 */ /* { dg-do compile } */ /* { dg-options "-O2 -funswitch-loops -fdump-tree-unswitch-details" } */ typedef struct bitmap_element_def { unsigned int indx; } bitmap_element; typedef struct bitmap_head_def { bitmap_element *first; int using_obstack; } bitmap_head; typedef struct bitmap_head_def *bitmap; bitmap_element *bitmap_free; void foo (bitmap head, bitmap_element *elt) { while (1) { /* Alias analysis problems used to prevent us from recognizing that this condition is invariant. */ if (head->using_obstack) bitmap_free = elt; } } /* { dg-final { scan-tree-dump-times "Unswitching" 1 "unswitch"} } */