diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20020215-1.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20020215-1.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20020215-1.c b/gcc/testsuite/gcc.c-torture/execute/20020215-1.c new file mode 100644 index 000000000..f1f46d57d --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20020215-1.c @@ -0,0 +1,33 @@ +/* Test failed on an architecture that: + + - had 16-bit registers, + - passed 64-bit structures in registers, + - only allowed SImode values in even numbered registers. + + Before reload, s.i2 in foo() was represented as: + + (subreg:SI (reg:DI 0) 2) + + find_dummy_reload would return (reg:SI 1) for the subreg reload, + despite that not being a valid register. */ + +struct s +{ + short i1; + long i2; + short i3; +}; + +struct s foo (struct s s) +{ + s.i2++; + return s; +} + +int main () +{ + struct s s = foo ((struct s) { 1000, 2000L, 3000 }); + if (s.i1 != 1000 || s.i2 != 2001L || s.i3 != 3000) + abort (); + exit (0); +} |