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| author | Geoffrey Keating <geoffk@apple.com> | 2004-02-04 23:58:11 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@gcc.gnu.org> | 2004-02-04 23:58:11 +0000 |
| commit | 3c241c19b0770d5f13dcdb7353f3e66fab2a8de1 (patch) | |
| tree | e48646a1fc93d9be9ff6de8341380a95b52e689d /gcc | |
| parent | a322288b35dccf90cf73143c34f5c7fd9ebc42e8 (diff) | |
| download | gcc-3c241c19b0770d5f13dcdb7353f3e66fab2a8de1.zip gcc-3c241c19b0770d5f13dcdb7353f3e66fab2a8de1.tar.gz gcc-3c241c19b0770d5f13dcdb7353f3e66fab2a8de1.tar.bz2 | |
reload.c (find_equiv_reg): When checking for register overlap, don't index hard_regno_nregs with a pseudo-reg.
* reload.c (find_equiv_reg): When checking for register overlap,
don't index hard_regno_nregs with a pseudo-reg.
From-SVN: r77278
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/reload.c | 9 |
2 files changed, 9 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 03b8b69..848a04e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-02-04 Geoffrey Keating <geoffk@apple.com> + + * reload.c (find_equiv_reg): When checking for register overlap, + don't index hard_regno_nregs with a pseudo-reg. + 2004-02-04 Ulrich Weigand <uweigand@de.ibm.com> * config/s390/s390.c (s390_trampoline_template): Remove gen_rtx(). diff --git a/gcc/reload.c b/gcc/reload.c index ea5b6f5..ae123cf 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -6587,17 +6587,16 @@ find_equiv_reg (rtx goal, rtx insn, enum reg_class class, int other, /* Reject registers that overlap GOAL. */ - if (!goal_mem && !goal_const - && regno + (int) hard_regno_nregs[regno][mode] > valueno - && regno < valueno + (int) hard_regno_nregs[valueno][mode]) - return 0; - if (regno >= 0 && regno < FIRST_PSEUDO_REGISTER) nregs = hard_regno_nregs[regno][mode]; else nregs = 1; valuenregs = hard_regno_nregs[valueno][mode]; + if (!goal_mem && !goal_const + && regno + nregs > valueno && regno < valueno + valuenregs) + return 0; + /* Reject VALUE if it is one of the regs reserved for reloads. Reload1 knows how to reuse them anyway, and it would get confused if we allocated one without its knowledge. |