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| author | Alan Modra <amodra@gmail.com> | 2009-10-28 08:21:45 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2009-10-28 08:21:45 +0000 |
| commit | 14610ad10e3d4b84565d3590eaa9582f9793f743 (patch) | |
| tree | 84257b7c5d61853f7ffe9838e493a02e228315cb /gas/expr.c | |
| parent | c92e840bf638679c637dd319de240d90264a7e9c (diff) | |
| download | gdb-14610ad10e3d4b84565d3590eaa9582f9793f743.zip gdb-14610ad10e3d4b84565d3590eaa9582f9793f743.tar.gz gdb-14610ad10e3d4b84565d3590eaa9582f9793f743.tar.bz2 | |
PR gas/10856
* expr.c (resolve_expression): Only add "left" value to O_symbol
expression when the symbol is undefined and different from the
original symbol. Simplify negative logic.
* gas/i386/intelpic.d: Correct.
Diffstat (limited to 'gas/expr.c')
| -rw-r--r-- | gas/expr.c | 21 |
1 files changed, 13 insertions, 8 deletions
@@ -1997,6 +1997,7 @@ resolve_expression (expressionS *expressionP) /* Help out with CSE. */ valueT final_val = expressionP->X_add_number; symbolS *add_symbol = expressionP->X_add_symbol; + symbolS *orig_add_symbol = add_symbol; symbolS *op_symbol = expressionP->X_op_symbol; operatorT op = expressionP->X_op; valueT left, right; @@ -2078,6 +2079,7 @@ resolve_expression (expressionS *expressionP) left = right; seg_left = seg_right; add_symbol = op_symbol; + orig_add_symbol = expressionP->X_op_symbol; op = O_symbol; break; } @@ -2122,18 +2124,19 @@ resolve_expression (expressionS *expressionP) { if (op == O_bit_exclusive_or || op == O_bit_inclusive_or) { - if (seg_right != absolute_section || right != 0) + if (!(seg_right == absolute_section && right == 0)) { seg_left = seg_right; left = right; add_symbol = op_symbol; + orig_add_symbol = expressionP->X_op_symbol; } op = O_symbol; break; } else if (op == O_left_shift || op == O_right_shift) { - if (seg_left != absolute_section || left != 0) + if (!(seg_left == absolute_section && left == 0)) { op = O_symbol; break; @@ -2149,6 +2152,7 @@ resolve_expression (expressionS *expressionP) seg_left = seg_right; left = right; add_symbol = op_symbol; + orig_add_symbol = expressionP->X_op_symbol; op = O_symbol; break; } @@ -2158,11 +2162,11 @@ resolve_expression (expressionS *expressionP) op = O_symbol; break; } - else if (left != right - || ((seg_left != reg_section || seg_right != reg_section) - && (seg_left != undefined_section - || seg_right != undefined_section - || add_symbol != op_symbol))) + else if (!(left == right + && ((seg_left == reg_section && seg_right == reg_section) + || (seg_left == undefined_section + && seg_right == undefined_section + && add_symbol == op_symbol)))) return 0; else if (op == O_bit_and || op == O_bit_inclusive_or) { @@ -2233,7 +2237,8 @@ resolve_expression (expressionS *expressionP) op = O_constant; else if (seg_left == reg_section && final_val == 0) op = O_register; - else if (add_symbol != expressionP->X_add_symbol) + else if (seg_left == undefined_section + && add_symbol != orig_add_symbol) final_val += left; expressionP->X_add_symbol = add_symbol; } |