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riscv-gcc-1
Commit e869aa39 by Kazu Hirata Committed by Kazu Hirata
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* combine.c: Fix formatting. 

From-SVN: r61862
parent 74fb4811
Showing with 20 additions and 15 deletions
gcc/ChangeLog
2003-01-26 Kazu Hirata <kazu@cs.umass.edu>
* combine.c: Fix formatting.
2003-01-26 Kazu Hirata <kazu@cs.umass.edu>
* doc/gccint.texi: Update the copyright.
2003-01-26 Kazu Hirata <kazu@cs.umass.edu>
......
gcc/combine.c
/* Optimize by combining instructions for GNU compiler.
Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001, 2002 Free Software Foundation, Inc.
1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of GCC.
......@@ -444,7 +444,7 @@ do_SUBST (into, newval)
|| (GET_CODE (oldval) == ZERO_EXTEND
&& GET_CODE (XEXP (oldval, 0)) == CONST_INT))
abort ();
}
}
if (undobuf.frees)
buf = undobuf.frees, undobuf.frees = buf->next;
......@@ -4286,7 +4286,7 @@ combine_simplify_rtx (x, op0_mode, last, in_dest)
"a = (b & 8) == 0;" */
if (XEXP (x, 1) == constm1_rtx
&& GET_CODE (XEXP (x, 0)) != REG
&& ! (GET_CODE (XEXP (x,0)) == SUBREG
&& ! (GET_CODE (XEXP (x, 0)) == SUBREG
&& GET_CODE (SUBREG_REG (XEXP (x, 0))) == REG)
&& nonzero_bits (XEXP (x, 0), mode) == 1)
return simplify_shift_const (NULL_RTX, ASHIFTRT, mode,
......@@ -4349,8 +4349,8 @@ combine_simplify_rtx (x, op0_mode, last, in_dest)
XEXP (x, 0));
}
/* Canonicalize (minus (neg A) (mult B C)) to
(minus (mult (neg B) C) A). */
/* Canonicalize (minus (neg A) (mult B C)) to
(minus (mult (neg B) C) A). */
if (GET_CODE (XEXP (x, 1)) == MULT
&& GET_CODE (XEXP (x, 0)) == NEG)
{
......@@ -4550,7 +4550,7 @@ combine_simplify_rtx (x, op0_mode, last, in_dest)
if (new_code == NE && GET_MODE_CLASS (mode) == MODE_INT
&& GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT
&& ((STORE_FLAG_VALUE & GET_MODE_MASK (mode))
== (unsigned HOST_WIDE_INT) 1 << (GET_MODE_BITSIZE(mode)-1))
== (unsigned HOST_WIDE_INT) 1 << (GET_MODE_BITSIZE (mode) - 1))
&& op1 == const0_rtx
&& mode == GET_MODE (op0)
&& (i = exact_log2 (nonzero_bits (op0, mode))) >= 0)
......@@ -5325,16 +5325,16 @@ simplify_set (x)
if (GET_CODE (true_rtx) == IOR
&& rtx_equal_p (XEXP (true_rtx, 0), false_rtx))
term1 = false_rtx, true_rtx = XEXP(true_rtx, 1), false_rtx = const0_rtx;
term1 = false_rtx, true_rtx = XEXP (true_rtx, 1), false_rtx = const0_rtx;
else if (GET_CODE (true_rtx) == IOR
&& rtx_equal_p (XEXP (true_rtx, 1), false_rtx))
term1 = false_rtx, true_rtx = XEXP(true_rtx, 0), false_rtx = const0_rtx;
term1 = false_rtx, true_rtx = XEXP (true_rtx, 0), false_rtx = const0_rtx;
else if (GET_CODE (false_rtx) == IOR
&& rtx_equal_p (XEXP (false_rtx, 0), true_rtx))
term1 = true_rtx, false_rtx = XEXP(false_rtx, 1), true_rtx = const0_rtx;
term1 = true_rtx, false_rtx = XEXP (false_rtx, 1), true_rtx = const0_rtx;
else if (GET_CODE (false_rtx) == IOR
&& rtx_equal_p (XEXP (false_rtx, 1), true_rtx))
term1 = true_rtx, false_rtx = XEXP(false_rtx, 0), true_rtx = const0_rtx;
term1 = true_rtx, false_rtx = XEXP (false_rtx, 0), true_rtx = const0_rtx;
term2 = gen_binary (AND, GET_MODE (src),
XEXP (XEXP (src, 0), 0), true_rtx);
......@@ -6452,7 +6452,7 @@ extract_left_shift (x, count)
case PLUS: case IOR: case XOR: case AND:
/* If we can safely shift this constant and we find the inner shift,
make a new operation. */
if (GET_CODE (XEXP (x,1)) == CONST_INT
if (GET_CODE (XEXP (x, 1)) == CONST_INT
&& (INTVAL (XEXP (x, 1)) & ((((HOST_WIDE_INT) 1 << count)) - 1)) == 0
&& (tem = extract_left_shift (XEXP (x, 0), count)) != 0)
return gen_binary (code, mode, tem,
......@@ -7254,7 +7254,7 @@ force_to_mode (x, mode, mask, reg, just_select)
temp = simplify_binary_operation (code == ROTATE ? ROTATERT : ROTATE,
GET_MODE (x), GEN_INT (mask),
XEXP (x, 1));
if (temp && GET_CODE(temp) == CONST_INT)
if (temp && GET_CODE (temp) == CONST_INT)
SUBST (XEXP (x, 0),
force_to_mode (XEXP (x, 0), GET_MODE (x),
INTVAL (temp), reg, next_select));
......@@ -7326,7 +7326,7 @@ force_to_mode (x, mode, mask, reg, just_select)
SUBST (XEXP (x, 2),
gen_lowpart_for_combine (GET_MODE (x),
force_to_mode (XEXP (x, 2), mode,
mask, reg,next_select)));
mask, reg, next_select)));
break;
default:
......@@ -9798,7 +9798,7 @@ simplify_shift_const (x, code, result_mode, varop, orig_count)
/* If COMPLEMENT_P is set, we have to complement X before doing the outer
operation. */
if (complement_p)
x =simplify_gen_unary (NOT, result_mode, x, result_mode);
x = simplify_gen_unary (NOT, result_mode, x, result_mode);
if (outer_op != NIL)
{
......@@ -10454,7 +10454,7 @@ simplify_comparison (code, pop0, pop1)
/* (unsigned) > 0x7fffffff is equivalent to < 0. */
else if ((mode_width <= HOST_BITS_PER_WIDE_INT)
&& (const_op == ((HOST_WIDE_INT) 1 << (mode_width - 1)) - 1))
&& (const_op == ((HOST_WIDE_INT) 1 << (mode_width - 1)) - 1))
{
const_op = 0, op1 = const0_rtx;
code = LT;
......@@ -11277,6 +11277,7 @@ combine_reversed_comparison_code (exp)
return reversed_comparison_code_parts (GET_CODE (exp),
XEXP (x, 0), XEXP (x, 1), NULL);
}
/* Return comparison with reversed code of EXP and operands OP0 and OP1.
Return NULL_RTX in case we fail to do the reversal. */
static rtx
......
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