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comparison gcc/testsuite/g++.dg/init/array53.C @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 // PR c++/90947 - Simple lookup table of array of strings is miscompiled
2 // Verify that initializers for arrays of elements of a class type with
3 // "unusual" data members are correctly recognized as non-zero.
4 // { dg-do compile }
5 // { dg-options "-O1 -fdump-tree-optimized" }
6
7 struct S
8 {
9 const char *p;
10 static int i;
11 enum { e };
12 typedef int X;
13 int: 1, b:1;
14 union {
15 int c;
16 };
17 const char *q;
18 };
19
20 void f (void)
21 {
22 const struct S a[2] =
23 {
24 { /* .p = */ "", /* .b = */ 0, /* .c = */ 0, /* .q = */ "" },
25 { /* .p = */ "", /* .b = */ 0, /* .c = */ 0, /* .q = */ "" }
26 };
27
28 if (!a[0].p || *a[0].p || !a[0].q || *a[0].q
29 || !a[1].p || *a[1].p || !a[1].q || *a[1].q)
30 __builtin_abort ();
31 }
32
33 // { dg-final { scan-tree-dump-not "abort" "optimized" } }