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(expand_expr, NOP_EXPR case): If EXPAND_INITIALIZER,

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generate ZERO_EXTEND or SIGN_EXTEND; don't emit insns.

(expand_expr): Set LABEL_REF_NONLOCAL_P for nonlocal labels.

From-SVN: r1636
This commit is contained in:
Richard Stallman 1992-07-20 02:45:03 +00:00
parent 16bae307a6
commit 26fcb35ae2
1 changed files with 8 additions and 2 deletions
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10
gcc/expr.c
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@ -3073,6 +3073,7 @@ fixed_type_p (exp)
EXPAND_INITIALIZER is much like EXPAND_SUM except that
it also marks a label as absolutely required (it can't be dead).
It also makes a ZERO_EXTEND or SIGN_EXTEND instead of emitting extend insns.
This is used for outputting expressions used in initializers. */
rtx
@ -3146,8 +3147,11 @@ expand_expr (exp, target, tmode, modifier)
else if (modifier == EXPAND_INITIALIZER)
forced_labels = gen_rtx (EXPR_LIST, VOIDmode,
label_rtx (exp), forced_labels);
return gen_rtx (MEM, FUNCTION_MODE,
temp = gen_rtx (MEM, FUNCTION_MODE,
gen_rtx (LABEL_REF, Pmode, label_rtx (exp)));
if (function != current_function_decl && function != 0)
LABEL_REF_NONLOCAL_P (XEXP (temp, 0)) = 1;
return temp;
}
case PARM_DECL:
@ -3782,9 +3786,11 @@ expand_expr (exp, target, tmode, modifier)
/* Return the entire union. */
return target;
}
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, mode, 0);
op0 = expand_expr (TREE_OPERAND (exp, 0), 0, mode, modifier);
if (GET_MODE (op0) == mode || GET_MODE (op0) == VOIDmode)
return op0;
if (modifier == EXPAND_INITIALIZER)
return gen_rtx (unsignedp ? ZERO_EXTEND : SIGN_EXTEND, mode, op0);
if (flag_force_mem && GET_CODE (op0) == MEM)
op0 = copy_to_reg (op0);