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From-SVN: r582
This commit is contained in:
Richard Stallman 1992-03-24 19:01:29 +00:00
parent 95f2ba07f8
commit 6461be142d
1 changed files with 10 additions and 2 deletions
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12
gcc/function.c
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@ -2210,9 +2210,17 @@ instantiate_virtual_regs_1 (loc, object, extra_insns)
Note that we cannot pass X as the object in the recursive call
since the insn being processed may not allow all valid
addresses. */
addresses. However, if we were not passed on object, we can
only modify X without copying it if X will have a valid
address.
if (instantiate_virtual_regs_1 (&XEXP (x, 0), object, 0))
??? Also note that this can still lose if OBJECT is an insn that
has less restrictions on an address that some other insn.
In that case, we will modify the shared address. This case
doesn't seem very likely, though. */
if (instantiate_virtual_regs_1 (&XEXP (x, 0),
object ? object : x, 0))
return 1;
/* Otherwise make a copy and process that copy. We copy the entire