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| author | Alexandre Oliva <aoliva@redhat.com> | 2001-01-01 00:43:16 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2001-01-01 00:43:16 +0000 |
| commit | 1d2215feb99eee4186a842f93484ac3130f2f20a (patch) | |
| tree | d4fc182665387c2a3682d06ffa7ed405877477f2 /gcc/resource.c | |
| parent | 8b634749abb593dd61bbb3b4c0c8eb6861b92c65 (diff) | |
| download | gcc-1d2215feb99eee4186a842f93484ac3130f2f20a.tar.gz | |
resource.c (mark_referenced_resources): Abort() before attempting to mark a pseudo register.
* resource.c (mark_referenced_resources): Abort() before
attempting to mark a pseudo register.
(mark_set_resources): Likewise.
From-SVN: r38581
Diffstat (limited to 'gcc/resource.c')
| -rw-r--r-- | gcc/resource.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/gcc/resource.c b/gcc/resource.c index 979de4d5cc9..fa7e9573061 100644 --- a/gcc/resource.c +++ b/gcc/resource.c @@ -212,14 +212,24 @@ mark_referenced_resources (x, res, include_delayed_effects) unsigned int last_regno = regno + HARD_REGNO_NREGS (regno, GET_MODE (x)); + if (last_regno > FIRST_PSEUDO_REGISTER) + abort (); for (r = regno; r < last_regno; r++) SET_HARD_REG_BIT (res->regs, r); } return; case REG: - for (r = 0; r < HARD_REGNO_NREGS (REGNO (x), GET_MODE (x)); r++) - SET_HARD_REG_BIT (res->regs, REGNO (x) + r); + { + unsigned int regno = REGNO (x); + unsigned int last_regno + = regno + HARD_REGNO_NREGS (regno, GET_MODE (x)); + + if (last_regno > FIRST_PSEUDO_REGISTER) + abort (); + for (r = regno; r < last_regno; r++) + SET_HARD_REG_BIT (res->regs, r); + } return; case MEM: @@ -760,6 +770,8 @@ mark_set_resources (x, res, in_dest, mark_type) unsigned int last_regno = regno + HARD_REGNO_NREGS (regno, GET_MODE (x)); + if (last_regno > FIRST_PSEUDO_REGISTER) + abort (); for (r = regno; r < last_regno; r++) SET_HARD_REG_BIT (res->regs, r); } @@ -768,8 +780,16 @@ mark_set_resources (x, res, in_dest, mark_type) case REG: if (in_dest) - for (r = 0; r < HARD_REGNO_NREGS (REGNO (x), GET_MODE (x)); r++) - SET_HARD_REG_BIT (res->regs, REGNO (x) + r); + { + unsigned int regno = REGNO (x); + unsigned int last_regno + = regno + HARD_REGNO_NREGS (regno, GET_MODE (x)); + + if (last_regno > FIRST_PSEUDO_REGISTER) + abort (); + for (r = regno; r < last_regno; r++) + SET_HARD_REG_BIT (res->regs, r); + } return; case STRICT_LOW_PART: |