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comparison gcc/testsuite/gcc.dg/no-strict-overflow-7.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
comparison
equal deleted inserted replaced
111:04ced10e8804 131:84e7813d76e9
1 /* { dg-do compile } */ 1 /* { dg-do compile } */
2 /* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */ 2 /* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
3 3
4 /* Source: Ian Lance Taylor. Dual of strict-overflow-6.c. */ 4 /* Source: Ian Lance Taylor. Dual of strict-overflow-6.c. */
5 5
6 /* We can simplify the conditional because pointer overflow always has 6 /* We can only simplify the conditional when using strict overflow
7 undefined semantics. */ 7 semantics. */
8 8
9 int 9 int
10 foo (char* p) 10 foo (char* p)
11 { 11 {
12 return p + 1000 < p; 12 return p + 1000 < p;
13 } 13 }
14 14
15 /* { dg-final { scan-tree-dump "return 0" "optimized" } } */ 15 /* { dg-final { scan-tree-dump "\[+\]\[ \]*1000" "optimized" } } */