diff options
| author | Jan Beulich <jbeulich@novell.com> | 2007-09-26 08:34:24 +0000 |
|---|---|---|
| committer | Jan Beulich <jbeulich@novell.com> | 2007-09-26 08:34:24 +0000 |
| commit | ba315106d7763a23982342b4b869f1e0e5839bfa (patch) | |
| tree | 48290330a0d50f476c8e28cd463974f2f5ea0684 /gas/expr.c | |
| parent | 808c68c23368298df3260172ac2f51b710484f2f (diff) | |
| download | binutils-redhat-ba315106d7763a23982342b4b869f1e0e5839bfa.tar.gz | |
gas/
2007-09-26 Jan Beulich <jbeulich@novell.com>
* config/tc-i386.h (md_register_arithmetic): Define.
* config/tc-ia64.h (md_register_arithmetic): Likewise.
* doc/internals.texi: Document md_register_arithmetic.
* expr.c (make_expr_symbol): Force O_register expressions into
reg_section.
(expr): Provide default for md_register_arithmetic. Don't resolve
adding/subtracting constants to/from registers if
md_register_arithmetic is zero.
Diffstat (limited to 'gas/expr.c')
| -rw-r--r-- | gas/expr.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/gas/expr.c b/gas/expr.c index b88328502e..4f4d380ff9 100644 --- a/gas/expr.c +++ b/gas/expr.c @@ -95,7 +95,9 @@ make_expr_symbol (expressionS *expressionP) symbolP = symbol_create (FAKE_LABEL_NAME, (expressionP->X_op == O_constant ? absolute_section - : expr_section), + : expressionP->X_op == O_register + ? reg_section + : expr_section), 0, &zero_address_frag); symbol_set_value_expression (symbolP, expressionP); @@ -1722,7 +1724,11 @@ expr (int rankarg, /* Larger # is higher rank. */ } else #endif - if (op_left == O_add && right.X_op == O_constant) +#ifndef md_register_arithmetic +# define md_register_arithmetic 1 +#endif + if (op_left == O_add && right.X_op == O_constant + && (md_register_arithmetic || resultP->X_op != O_register)) { /* X + constant. */ resultP->X_add_number += right.X_add_number; @@ -1745,12 +1751,14 @@ expr (int rankarg, /* Larger # is higher rank. */ resultP->X_op = O_constant; resultP->X_add_symbol = 0; } - else if (op_left == O_subtract && right.X_op == O_constant) + else if (op_left == O_subtract && right.X_op == O_constant + && (md_register_arithmetic || resultP->X_op != O_register)) { /* X - constant. */ resultP->X_add_number -= right.X_add_number; } - else if (op_left == O_add && resultP->X_op == O_constant) + else if (op_left == O_add && resultP->X_op == O_constant + && (md_register_arithmetic || right.X_op != O_register)) { /* Constant + X. */ resultP->X_op = right.X_op; |