From a034df24db5b70f4f3202e8a019431ed3de4fa57 Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Mon, 2 Aug 2010 13:19:44 +0000 Subject: 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. --- gas/read.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'gas/read.c') diff --git a/gas/read.c b/gas/read.c index 92371b79f9..bd3fa58bbe 100644 --- a/gas/read.c +++ b/gas/read.c @@ -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) -- cgit v1.2.1