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combine.c (distribute_notes): Discard REG_LIBCALL and REG_RETVAL when deleting libcall sequence collapsed to...

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* combine.c (distribute_notes): Discard REG_LIBCALL and REG_RETVAL
when deleting libcall sequence collapsed to a single instruction.

From-SVN: r37037
This commit is contained in:
Alexandre Oliva 2000-10-24 20:24:03 +00:00 committed by Alexandre Oliva
parent 5129d2ceee
commit c71e120103
2 changed files with 13 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2000-10-24 Alexandre Oliva <aoliva@redhat.com>
* combine.c (distribute_notes): Discard REG_LIBCALL and REG_RETVAL
when deleting libcall sequence collapsed to a single instruction.
2000-10-24 Andrew Haley <aph@cygnus.co.uk>
* expr.c (do_store_flag): Don't crash if either side of a

8
gcc/combine.c
View File

@ -12239,6 +12239,10 @@ distribute_notes (notes, from_insn, i3, i2, elim_i2, elim_i1)
place = prev_real_insn (from_insn);
if (tem && place)
XEXP (tem, 0) = place;
/* If we're deleting the last remaining instruction of a
libcall sequence, don't add the notes. */
else if (XEXP (note, 0) == from_insn)
tem = place = 0;
}
break;
@ -12252,6 +12256,10 @@ distribute_notes (notes, from_insn, i3, i2, elim_i2, elim_i1)
place = next_real_insn (from_insn);
if (tem && place)
XEXP (tem, 0) = place;
/* If we're deleting the last remaining instruction of a
libcall sequence, don't add the notes. */
else if (XEXP (note, 0) == from_insn)
tem = place = 0;
}
break;