diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/ipa/ipa-ea-10-return-type-escapes-0.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/ipa/ipa-ea-10-return-type-escapes-0.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/ipa/ipa-ea-10-return-type-escapes-0.c b/gcc/testsuite/gcc.dg/ipa/ipa-ea-10-return-type-escapes-0.c new file mode 100644 index 00000000000..55879c43719 --- /dev/null +++ b/gcc/testsuite/gcc.dg/ipa/ipa-ea-10-return-type-escapes-0.c @@ -0,0 +1,42 @@ +/* { dg-do link } */ +/* { dg-options "-flto -fipa-type-escape-analysis -fdump-ipa-type-escape-analysis -fprint-cast-analysis" } */ + +#include <stddef.h> + +struct astruct_s +{ + _Bool a; + _Bool b; + _Bool c; +}; +struct astruct_s astruct; // This should not escape +struct bstruct_s +{ + _Bool a; + _Bool b; + _Bool c; +}; +struct bstruct_s bstruct; // This should not escape + +// This will make astruct_s escape +struct astruct_s __attribute__ ((externally_visible)) escaping () +{ + struct astruct_s a; + return a; +} +struct bstruct_s +non_escaping () +{} + +int +main () +{ + astruct = escaping (); + bstruct = non_escaping (); +} + +// This says that astruct_s escapes because it is returning from an externally +// visible function +/* { dg-final { scan-wpa-ipa-dump " record astruct_s .boolean_type a;boolean_type b;boolean_type c;. reason: e=1 g=0 p=0 r=1 c=0 v=0 u=0 i=0" "type-escape-analysis" } } */ +// This says that bstruct_s does not escape +/* { dg-final { scan-wpa-ipa-dump " record bstruct_s .boolean_type a;boolean_type b;boolean_type c;. reason: e=0 g=0 p=0 r=0 c=0 v=0 u=0 i=0" "type-escape-analysis" } } */ |