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| author | Paolo Bonzini <bonzini@gnu.org> | 2009-03-30 08:20:32 +0000 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gcc.gnu.org> | 2009-03-30 08:20:32 +0000 |
| commit | 28ddeea115cc0a6e9eddfae00905a9fb739f2503 (patch) | |
| tree | 5b140417cc664479b9a3f420cad41ed2b1c99243 /gcc/fold-const.c | |
| parent | ebfd146af752ce6aa298f866e36f9a7e66e32ec5 (diff) | |
| download | gcc-28ddeea115cc0a6e9eddfae00905a9fb739f2503.zip gcc-28ddeea115cc0a6e9eddfae00905a9fb739f2503.tar.gz gcc-28ddeea115cc0a6e9eddfae00905a9fb739f2503.tar.bz2 | |
fold-const.c (const_binop, [...]): Do not set TREE_CONSTANT_OVERFLOW.
2009-03-30 Paolo Bonzini <bonzini@gnu.org>
* fold-const.c (const_binop, fold_convert_const_real_from_fixed,
fold_convert_const_fixed_from_fixed,
fold_convert_const_fixed_from_int,
fold_convert_const_fixed_from_real, fold_negate_const): Do not
set TREE_CONSTANT_OVERFLOW.
* tree.def: Remove mention of TREE_CONSTANT_OVERFLOW.
* tree.h (TREE_CONSTANT_OVERFLOW): Delete.
From-SVN: r145281
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 37 |
1 files changed, 5 insertions, 32 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index a68b7b8..a56e885 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -1932,12 +1932,7 @@ const_binop (enum tree_code code, tree arg1, tree arg2, int notrunc) t = build_fixed (type, result); /* Propagate overflow flags. */ if (overflow_p | TREE_OVERFLOW (arg1) | TREE_OVERFLOW (arg2)) - { - TREE_OVERFLOW (t) = 1; - TREE_CONSTANT_OVERFLOW (t) = 1; - } - else if (TREE_CONSTANT_OVERFLOW (arg1) | TREE_CONSTANT_OVERFLOW (arg2)) - TREE_CONSTANT_OVERFLOW (t) = 1; + TREE_OVERFLOW (t) = 1; return t; } @@ -2304,8 +2299,6 @@ fold_convert_const_real_from_fixed (tree type, const_tree arg1) t = build_real (type, value); TREE_OVERFLOW (t) = TREE_OVERFLOW (arg1); - TREE_CONSTANT_OVERFLOW (t) - = TREE_OVERFLOW (t) | TREE_CONSTANT_OVERFLOW (arg1); return t; } @@ -2325,12 +2318,7 @@ fold_convert_const_fixed_from_fixed (tree type, const_tree arg1) /* Propagate overflow flags. */ if (overflow_p | TREE_OVERFLOW (arg1)) - { - TREE_OVERFLOW (t) = 1; - TREE_CONSTANT_OVERFLOW (t) = 1; - } - else if (TREE_CONSTANT_OVERFLOW (arg1)) - TREE_CONSTANT_OVERFLOW (t) = 1; + TREE_OVERFLOW (t) = 1; return t; } @@ -2352,12 +2340,7 @@ fold_convert_const_fixed_from_int (tree type, const_tree arg1) /* Propagate overflow flags. */ if (overflow_p | TREE_OVERFLOW (arg1)) - { - TREE_OVERFLOW (t) = 1; - TREE_CONSTANT_OVERFLOW (t) = 1; - } - else if (TREE_CONSTANT_OVERFLOW (arg1)) - TREE_CONSTANT_OVERFLOW (t) = 1; + TREE_OVERFLOW (t) = 1; return t; } @@ -2378,12 +2361,7 @@ fold_convert_const_fixed_from_real (tree type, const_tree arg1) /* Propagate overflow flags. */ if (overflow_p | TREE_OVERFLOW (arg1)) - { - TREE_OVERFLOW (t) = 1; - TREE_CONSTANT_OVERFLOW (t) = 1; - } - else if (TREE_CONSTANT_OVERFLOW (arg1)) - TREE_CONSTANT_OVERFLOW (t) = 1; + TREE_OVERFLOW (t) = 1; return t; } @@ -15228,12 +15206,7 @@ fold_negate_const (tree arg0, tree type) t = build_fixed (type, f); /* Propagate overflow flags. */ if (overflow_p | TREE_OVERFLOW (arg0)) - { - TREE_OVERFLOW (t) = 1; - TREE_CONSTANT_OVERFLOW (t) = 1; - } - else if (TREE_CONSTANT_OVERFLOW (arg0)) - TREE_CONSTANT_OVERFLOW (t) = 1; + TREE_OVERFLOW (t) = 1; break; } |