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annotate gcc/testsuite/gcc.dg/uninit-20.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Spurious uninitialized variable warnings, from gdb */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -Wuninitialized" } */
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4 struct os { struct o *o; };
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5 struct o { struct o *next; struct os *se; };
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6 void f(struct o *o){
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7 struct os *s;
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8 if(o) s = o->se;
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9 while(o && s == o->se){
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10 s++; // here `o' is non-zero and thus s is initialized
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11 s == o->se // `?' is essential, `if' does not trigger the warning
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12 ? (o = o->next, o ? s = o->se : 0)
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13 : 0;
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14 }
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15 }
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