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(simplify_binary_operation, simplify_relational_operation): Check for 

MODE_CC modes, not just CCmode.

From-SVN: r4352
This commit is contained in:
Richard Kenner 1993-05-06 05:44:05 -04:00
parent d9d27c6e36
commit 8e7e536500
1 changed files with 7 additions and 7 deletions
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14
gcc/cse.c
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@ -1,5 +1,5 @@
/* Common subexpression elimination for GNU compiler.
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.
@ -3599,7 +3599,7 @@ simplify_binary_operation (code, mode, op0, op1)
if (((GET_CODE (op0) == NOT && rtx_equal_p (XEXP (op0, 0), op1))
|| (GET_CODE (op1) == NOT && rtx_equal_p (XEXP (op1, 0), op0)))
&& ! side_effects_p (op0)
&& mode != CCmode)
&& GET_MODE_CLASS (mode) != MODE_CC)
return constm1_rtx;
break;
@ -3610,7 +3610,7 @@ simplify_binary_operation (code, mode, op0, op1)
&& (INTVAL (op1) & GET_MODE_MASK (mode)) == GET_MODE_MASK (mode))
return gen_rtx (NOT, mode, op0);
if (op0 == op1 && ! side_effects_p (op0)
&& mode != CCmode)
&& GET_MODE_CLASS (mode) != MODE_CC)
return const0_rtx;
break;
@ -3621,13 +3621,13 @@ simplify_binary_operation (code, mode, op0, op1)
&& (INTVAL (op1) & GET_MODE_MASK (mode)) == GET_MODE_MASK (mode))
return op0;
if (op0 == op1 && ! side_effects_p (op0)
&& mode != CCmode)
&& GET_MODE_CLASS (mode) != MODE_CC)
return op0;
/* A & (~A) -> 0 */
if (((GET_CODE (op0) == NOT && rtx_equal_p (XEXP (op0, 0), op1))
|| (GET_CODE (op1) == NOT && rtx_equal_p (XEXP (op1, 0), op0)))
&& ! side_effects_p (op0)
&& mode != CCmode)
&& GET_MODE_CLASS (mode) != MODE_CC)
return const0_rtx;
break;
@ -4163,9 +4163,9 @@ simplify_relational_operation (code, mode, op0, op1)
if (GET_CODE (op0) == COMPARE && op1 == const0_rtx)
op1 = XEXP (op0, 1), op0 = XEXP (op0, 0);
/* What to do with CCmode isn't clear yet.
/* What to do with MODE_CC isn't clear yet.
Let's make sure nothing erroneous is done. */
if (GET_MODE (op0) == CCmode)
if (GET_MODE_CLASS (GET_MODE (op0)) == MODE_CC)
return 0;
/* Unlike the arithmetic operations, we can do the comparison whether