diff options
| -rw-r--r-- | gas/ChangeLog | 8 | ||||
| -rw-r--r-- | gas/expr.c | 21 | ||||
| -rw-r--r-- | gas/read.c | 23 |
3 files changed, 42 insertions, 10 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 7a76619..ccab9d3 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,5 +1,13 @@ 2010-08-02 Alan Modra <amodra@gmail.com> + PR gas/11867 + * expr.c (operand <'-' and '~'>): Widen bignums. + (operand <'!'>): Correct bignum result and convert to O_constant. + * read.c (emit_expr): Don't assert on .byte bignum. Don't display + bignum truncated warning for sign extended bignums. + +2010-08-02 Alan Modra <amodra@gmail.com> + * config/tc-v850.c (md_assemble): Always pass format string to as_warn. (md_apply_fix): Similarly for as_warn_where. @@ -1056,6 +1056,15 @@ operand (expressionS *expressionP, enum expr_mode mode) { for (i = 0; i < expressionP->X_add_number; ++i) generic_bignum[i] = ~generic_bignum[i]; + + /* Extend the bignum to at least the size of .octa. */ + if (expressionP->X_add_number < SIZE_OF_LARGE_NUMBER) + { + expressionP->X_add_number = SIZE_OF_LARGE_NUMBER; + for (; i < expressionP->X_add_number; ++i) + generic_bignum[i] = ~(LITTLENUM_TYPE) 0; + } + if (c == '-') for (i = 0; i < expressionP->X_add_number; ++i) { @@ -1066,14 +1075,12 @@ operand (expressionS *expressionP, enum expr_mode mode) } else if (c == '!') { - int nonzero = 0; for (i = 0; i < expressionP->X_add_number; ++i) - { - if (generic_bignum[i]) - nonzero = 1; - generic_bignum[i] = 0; - } - generic_bignum[0] = nonzero; + if (generic_bignum[i] != 0) + break; + expressionP->X_add_number = i >= expressionP->X_add_number; + expressionP->X_op = O_constant; + expressionP->X_unsigned = 1; } } else if (expressionP->X_op != O_illegal @@ -4263,15 +4263,32 @@ emit_expr (expressionS *exp, unsigned int nbytes) unsigned int size; LITTLENUM_TYPE *nums; - know (nbytes % CHARS_PER_LITTLENUM == 0); - size = exp->X_add_number * CHARS_PER_LITTLENUM; if (nbytes < size) { - as_warn (_("bignum truncated to %d bytes"), nbytes); + int i = nbytes / CHARS_PER_LITTLENUM; + if (i != 0) + { + LITTLENUM_TYPE sign = 0; + if ((generic_bignum[--i] + & (1 << (LITTLENUM_NUMBER_OF_BITS - 1))) != 0) + sign = ~(LITTLENUM_TYPE) 0; + while (++i < exp->X_add_number) + if (generic_bignum[i] != sign) + break; + } + if (i < exp->X_add_number) + as_warn (_("bignum truncated to %d bytes"), nbytes); size = nbytes; } + if (nbytes == 1) + { + md_number_to_chars (p, (valueT) generic_bignum[0], 1); + return; + } + know (nbytes % CHARS_PER_LITTLENUM == 0); + if (target_big_endian) { while (nbytes > size) |