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| author | Saurabh Verma <saurabh.verma@codito.com> | 2005-09-06 17:51:48 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2005-09-06 17:51:48 +0000 |
| commit | f5d1572a8a1aaba31679c2500e4a492936960531 (patch) | |
| tree | 54a662f240d5b2a941c2dad15296e474258a6a4e /gcc | |
| parent | 852993e3817924f37fdfa9d8c6b191cb30934cfb (diff) | |
| download | gcc-f5d1572a8a1aaba31679c2500e4a492936960531.zip gcc-f5d1572a8a1aaba31679c2500e4a492936960531.tar.gz gcc-f5d1572a8a1aaba31679c2500e4a492936960531.tar.bz2 | |
simplify-rtx.c (simplify_binary_operation_1): Correct the condition for detecting cases like (a&a) and (a^a).
* simplify-rtx.c (simplify_binary_operation_1): Correct the
condition for detecting cases like (a&a) and (a^a).
From-SVN: r103955
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 310d84a..a26af5a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-09-06 Saurabh Verma <saurabh.verma@codito.com> + + * simplify-rtx.c (simplify_binary_operation_1): Correct the + condition for detecting cases like (a&a) and (a^a). + 2005-09-06 Keith Besaw <kbesaw@us.ibm.com> * common.opt: Add option ftree-vect-loop-version. diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index d3ec956..1b99677 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1661,7 +1661,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, && ((INTVAL (trueop1) & GET_MODE_MASK (mode)) == GET_MODE_MASK (mode))) return simplify_gen_unary (NOT, mode, op0, mode); - if (trueop0 == trueop1 + if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0) && GET_MODE_CLASS (mode) != MODE_CC) return CONST0_RTX (mode); @@ -1696,7 +1696,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT && (nonzero_bits (trueop0, mode) & ~INTVAL (trueop1)) == 0) return op0; - if (trueop0 == trueop1 && ! side_effects_p (op0) + if (rtx_equal_p (trueop0, trueop1) && ! side_effects_p (op0) && GET_MODE_CLASS (mode) != MODE_CC) return op0; /* A & (~A) -> 0 */ |