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| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/regclass.c | 11 |
2 files changed, 17 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ca8f544..055fc37 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-08-17 Roger Sayle <roger@eyesopen.com> + + * regclass.c (init_reg_sets_1): Add ENABLE_CHECKING sanity tests to + ensure that call_used_regs is a superset of both fixed_regs and + call_really_used_regs. + 2004-08-17 Daniel Bornstein <danfuzz@milk.com> PR target/17019 diff --git a/gcc/regclass.c b/gcc/regclass.c index 1f51af6..1304313 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -427,6 +427,17 @@ init_reg_sets_1 (void) for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) { +#ifdef ENABLE_CHECKING + /* call_used_regs must include fixed_regs. */ + if (fixed_regs[i] && !call_used_regs[i]) + abort (); +#ifdef CALL_REALLY_USED_REGISTERS + /* call_used_regs must include call_really_used_regs. */ + if (call_really_used_regs[i] && !call_used_regs[i]) + abort (); +#endif +#endif + if (fixed_regs[i]) SET_HARD_REG_BIT (fixed_reg_set, i); else |