diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2010-03-18 21:05:19 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2010-03-18 21:05:19 +0000 |
| commit | c6d288a6bbd3e42cb0fce5241cb636dc826af5df (patch) | |
| tree | dbd69acbae4aa3f8ee3feb40419a8ef024d53cb2 /gnu | |
| parent | bb8422a201456a627f0b4a1ffb03792c86d3df3e (diff) | |
Backport fix of negative bignums from binutils 2.16:
2004-08-10 Mark Mitchell <mark@codesourcery.com>
* expr.c (operand): Handle the "~", "-", and "!" operators applied
to bignums.
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gas/expr.c.diff?cvsroot=src&only\
_with_tag=MAIN&r2=1.52&r1=1.51&f=u
Fixes the problem mentioned here:
http://llvm.org/bugs/show_bug.cgi?id=6528
ok jsg@, miod@
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/usr.bin/binutils/gas/expr.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gnu/usr.bin/binutils/gas/expr.c b/gnu/usr.bin/binutils/gas/expr.c index 19e3f1c0387..c792a2563f9 100644 --- a/gnu/usr.bin/binutils/gas/expr.c +++ b/gnu/usr.bin/binutils/gas/expr.c @@ -1074,6 +1074,35 @@ operand (expressionS *expressionP) else generic_floating_point_number.sign = 'N'; } + else if (expressionP->X_op == O_big + && expressionP->X_add_number > 0) + { + int i; + + if (c == '~' || c == '-') + { + for (i = 0; i < expressionP->X_add_number; ++i) + generic_bignum[i] = ~generic_bignum[i]; + if (c == '-') + for (i = 0; i < expressionP->X_add_number; ++i) + { + generic_bignum[i] += 1; + if (generic_bignum[i]) + break; + } + } + 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; + } + } else if (expressionP->X_op != O_illegal && expressionP->X_op != O_absent) { |