Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/uninit-9.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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/* Spurious uninitialized variable warnings. Slight variant on the documented case, inspired by reg-stack.c:record_asm_reg_life. */ /* { dg-do compile } */ /* { dg-options "-O -Wuninitialized" } */ /* { dg-require-effective-target alloca } */ struct foo { int type; struct foo *car; struct foo *cdr; char *data; int data2; }; extern void use(struct foo *); #define CLOBBER 6 #define PARALLEL 3 void func(struct foo *list, int count) { int n_clobbers = 0; int i; struct foo **clob_list; /* { dg-bogus "clob_list" "uninitialized variable warning" } */ if(list[0].type == PARALLEL) { clob_list = __builtin_alloca(count * sizeof(struct foo *)); for(i = 1; i < count; i++) { if(list[i].type == CLOBBER) clob_list[n_clobbers++] = &list[i]; } } for(i = 0; i < n_clobbers; i++) use(clob_list[i]); }