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| author | Richard Kenner <kenner@gcc.gnu.org> | 1993-05-06 05:44:05 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1993-05-06 05:44:05 -0400 |
| commit | 8e7e536500c31b0d3b8890d5aee90c9f644138da (patch) | |
| tree | 413a84315319519d36e7527a98500694697f450e /gcc | |
| parent | d9d27c6e362dcc66164fdfedfaf4b9808d6ecd89 (diff) | |
| download | gcc-8e7e536500c31b0d3b8890d5aee90c9f644138da.zip gcc-8e7e536500c31b0d3b8890d5aee90c9f644138da.tar.gz gcc-8e7e536500c31b0d3b8890d5aee90c9f644138da.tar.bz2 | |
(simplify_binary_operation, simplify_relational_operation): Check for
MODE_CC modes, not just CCmode.
From-SVN: r4352
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cse.c | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -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 |