diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/iamcu/test_passing_structs_and_unions.c')
-rw-r--r-- | gcc/testsuite/gcc.target/i386/iamcu/test_passing_structs_and_unions.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/iamcu/test_passing_structs_and_unions.c b/gcc/testsuite/gcc.target/i386/iamcu/test_passing_structs_and_unions.c new file mode 100644 index 00000000000..ff6354cd6fc --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/iamcu/test_passing_structs_and_unions.c @@ -0,0 +1,97 @@ +/* This tests passing of structs. Only integers are tested. */ + +#include "defines.h" +#include "args.h" + +struct IntegerRegisters iregbits = { ~0, ~0, ~0, ~0, ~0, ~0 }; +struct IntegerRegisters iregs; +unsigned int num_iregs; + +struct int_struct +{ + int i; +}; + +struct longlong_struct +{ + long long ll; +}; + +struct long2_struct +{ + long long ll1, ll2; +}; + +struct long3_struct +{ + long l1, l2, l3; +}; + +union un1 +{ + char c; + int i; +}; + +union un2 +{ + char c1; + long l; + char c2; +}; + +union un3 +{ + struct int_struct is; + struct longlong_struct ls; + union un1 un; +}; + + +void +check_mixed_passing1 (char c1 ATTRIBUTE_UNUSED, struct int_struct is ATTRIBUTE_UNUSED, char c2 ATTRIBUTE_UNUSED) +{ + check_int_arguments; +} + +void +check_mixed_passing2 (char c1 ATTRIBUTE_UNUSED, struct long3_struct ls ATTRIBUTE_UNUSED, char c2 ATTRIBUTE_UNUSED) +{ + check_int_arguments; + + /* Check the passing on the stack by comparing the address of the + stack elements to the expected place on the stack. */ + assert ((unsigned long)&ls.l1 == esp+4); + assert ((unsigned long)&ls.l2 == esp+8); + assert ((unsigned long)&ls.l3 == esp+12); +} + +int +main (void) +{ + struct int_struct is = { 64 }; +#ifdef CHECK_LARGER_STRUCTS + struct long3_struct l3s = { 65, 66, 67 }; +#endif + + clear_struct_registers; + iregs.I0 = 8; + iregs.I1 = 64; + iregs.I2 = 9; + num_iregs = 3; + clear_int_hardware_registers; + WRAP_CALL (check_mixed_passing1)(8, is, 9); + +#ifdef CHECK_LARGER_STRUCTS + clear_struct_registers; + iregs.I0 = 10; + iregbits.I0 = 0xff; + iregs.I1 = 11; + iregbits.I1 = 0xff; + num_iregs = 2; + clear_int_hardware_registers; + WRAP_CALL (check_mixed_passing2)(10, l3s, 11); +#endif + + return 0; +} |