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(find_equiv_reg): Don't look inside a CONST_DOUBLE; use 

operand_subword instead.

From-SVN: r4373
This commit is contained in:
Richard Kenner 1993-05-06 18:18:06 -04:00
parent 7313c84b67
commit f55b1d9739
1 changed files with 8 additions and 4 deletions
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12
gcc/reload.c
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@ -1,5 +1,5 @@
/* Search an insn for pseudo regs that must be in hard regs and are not.
Copyright (C) 1987, 1988, 1989, 1992 Free Software Foundation, Inc.
Copyright (C) 1987, 1988, 1989, 1992, 1993 Free Software Foundation, Inc.
This file is part of GNU CC.
@ -4948,7 +4948,7 @@ find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
enum machine_mode mode;
{
register rtx p = insn;
rtx valtry, value, where;
rtx goaltry, valtry, value, where;
register rtx pat;
register int regno = -1;
int valueno;
@ -5054,7 +5054,9 @@ find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
&& GET_CODE (XEXP (tem, 0)) == CONST_DOUBLE
&& GET_MODE_CLASS (GET_MODE (XEXP (tem, 0))) == MODE_FLOAT
&& GET_CODE (goal) == CONST_INT
&& INTVAL (goal) == CONST_DOUBLE_LOW (XEXP (tem, 0))
&& 0 != (goaltry = operand_subword (XEXP (tem, 0), 0, 0,
VOIDmode))
&& rtx_equal_p (goal, goaltry)
&& (valtry = operand_subword (SET_DEST (pat), 0, 0,
VOIDmode))
&& (valueno = true_regnum (valtry)) >= 0)
@ -5064,7 +5066,9 @@ find_equiv_reg (goal, insn, class, other, reload_reg_p, goalreg, mode)
&& GET_CODE (XEXP (tem, 0)) == CONST_DOUBLE
&& GET_MODE_CLASS (GET_MODE (XEXP (tem, 0))) == MODE_FLOAT
&& GET_CODE (goal) == CONST_INT
&& INTVAL (goal) == CONST_DOUBLE_HIGH (XEXP (tem, 0))
&& 0 != (goaltry = operand_subword (XEXP (tem, 0), 1, 0,
VOIDmode))
&& rtx_equal_p (goal, goaltry)
&& (valtry
= operand_subword (SET_DEST (pat), 1, 0, VOIDmode))
&& (valueno = true_regnum (valtry)) >= 0)))