Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/c-c++-common/pr51628-3.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/c-c++-common/pr51628-3.c Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,35 @@ +/* PR c/51628. */ +/* { dg-do compile } */ +/* { dg-options "-O" } */ + +struct pair_t +{ + int x; + int i; +} __attribute__((packed, aligned (2))); + +extern struct pair_t p; +extern int *x; +extern void bar (int *); + +int *addr = &p.i; +/* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ + +int * +foo (void) +{ + struct pair_t arr[2] = { { 1, 10 }, { 2, 20 } }; + int *p0, *p1; + p0 = &arr[0].i; +/* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ + bar (p0); + p1 = &arr[1].i; +/* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ + bar (p1); + bar (&p.i); +/* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ + x = &p.i; +/* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ + return &p.i; +/* { dg-warning "may result in an unaligned pointer value" "" { target *-*-* } .-1 } */ +}