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(assign_parms): Use const0_rtx as DECL_RTL and as

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DECL_INCOMING_RTL if tmode of parm is void.

From-SVN: r1635
This commit is contained in:
Richard Stallman 1992-07-20 02:42:59 +00:00
parent 7e53036d32
commit 16bae307a6
1 changed files with 9 additions and 1 deletions
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10
gcc/function.c
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@ -2556,6 +2556,14 @@ assign_parms (fndecl, second_time)
passed_mode = TYPE_MODE (passed_type);
nominal_mode = TYPE_MODE (TREE_TYPE (parm));
/* If the parm's mode is VOID, its value doesn't matter,
and avoid the usual things like emit_move_insn that could crash. */
if (nominal_mode == VOIDmode)
{
DECL_INCOMING_RTL (parm) = DECL_RTL (parm) = const0_rtx;
continue;
}
#ifdef FUNCTION_ARG_PASS_BY_REFERENCE
/* See if this arg was passed by invisible reference. */
if (FUNCTION_ARG_PASS_BY_REFERENCE (args_so_far, passed_mode,
@ -2860,7 +2868,7 @@ assign_parms (fndecl, second_time)
/* If we were passed a pointer but the actual value
can safely live in a register, put it in one. */
if (passed_pointer && nominal_mode != BLKmode
if (passed_pointer && TYPE_MODE (TREE_TYPE (parm)) != BLKmode
&& ! ((obey_regdecls && ! DECL_REGISTER (parm)
&& ! DECL_INLINE (fndecl))
/* layout_decl may set this. */