diff options
Diffstat (limited to 'gcc/testsuite/g++.dg/other/unused1.C')
-rw-r--r-- | gcc/testsuite/g++.dg/other/unused1.C | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/other/unused1.C b/gcc/testsuite/g++.dg/other/unused1.C new file mode 100644 index 000000000..2a3ca1be7 --- /dev/null +++ b/gcc/testsuite/g++.dg/other/unused1.C @@ -0,0 +1,49 @@ +/* { dg-do compile } */ +/* { dg-options "-g" } */ +/* { dg-skip-if "" { { hppa*-*-hpux* *-*-solaris2.[56]* } && { ! hppa*64*-*-* } } { "*" } { "" } } */ + +/* Make sure we didn't eliminate casted types because we thought they were + unused. */ + +void *voidp; + +struct foo { int i; }; +int bar (void) +{ + return ((struct foo *)0x1234)->i; +} + +struct boo { int i; }; +int bar2 (void) +{ + return reinterpret_cast<struct boo *>(0xC0FFEE)->i; +} + +struct cue { int i; }; +int bar3 (void) +{ + return static_cast<struct cue *>(voidp)->i; +} + +class printer { public: int i; }; +const printer *dotmatrix; +int bar4 (void) +{ + return const_cast<printer *>(dotmatrix)->i; +} + +class class1 { public: virtual ~class1(); } *c1; +class class2 : class1 { char j; }; +int bar5 (void) +{ + if (dynamic_cast <class2 *>(c1)) + return 5; + else + return 6; +} +/* { dg-final { scan-assembler "foo" } } */ +/* { dg-final { scan-assembler "boo" } } */ +/* { dg-final { scan-assembler "cue" } } */ +/* The xfail below is for PR33429. */ +/* { dg-final { scan-assembler "(string|ascii?)z?\[\t \]\"class2(\"|\\\\0)" { xfail *-*-* } } } */ +/* { dg-final { scan-assembler "(string|ascii?)z?\[\t \]\"printer(\"|\\\\0)" } } */ |