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comparison gcc/testsuite/c-c++-common/pr48418.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children 1830386684a0
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68:561a7518be6b 111:04ced10e8804
1 /* PR c/48418 */
2 /* { dg-do compile } */
3 /* { dg-options "-Wall -O2" } */
4
5 int
6 foo (int x)
7 {
8 const int a = sizeof (int) * __CHAR_BIT__;
9 const int b = -7;
10 int c = 0;
11 c += x << a; /* { dg-warning "left shift count >= width of type" } */
12 c += x << b; /* { dg-warning "left shift count is negative" } */
13 c += x << (sizeof (int) * __CHAR_BIT__); /* { dg-warning "left shift count >= width of type" } */
14 c += x << -7; /* { dg-warning "left shift count is negative" } */
15 c += x >> a; /* { dg-warning "right shift count >= width of type" } */
16 c += x >> b; /* { dg-warning "right shift count is negative" } */
17 c += x >> (sizeof (int) * __CHAR_BIT__); /* { dg-warning "right shift count >= width of type" } */
18 c += x >> -7; /* { dg-warning "right shift count is negative" } */
19 return c;
20 }