diff options
| author | Markus Trippelsdorf <markus@trippelsdorf.de> | 2017-01-18 08:40:05 +0000 |
|---|---|---|
| committer | Markus Trippelsdorf <trippels@gcc.gnu.org> | 2017-01-18 08:40:05 +0000 |
| commit | f6efea5163e7a321ecda80386ac23488e041ec2b (patch) | |
| tree | 1b2783df9fcda5852973bca7fca843bd8a07e970 /libiberty/cp-demangle.c | |
| parent | 4701fba31cd2c7d5d6cd0af9a971ef802afc89e3 (diff) | |
Fix PR77489 -- mangling of discriminator >= 1
libiberty:
PR c++/77489
* cp-demangle.c (d_discriminator): Handle discriminator >= 10.
* testsuite/demangle-expected: Add tests for discriminator.
gcc:
PR c++/77489
* doc/invoke.texi (fabi-version): Document discriminator mangling.
gcc/cp:
PR c++/77489
* mangle.c (write_discriminator): Handle discriminator >= 10.
From-SVN: r244566
Diffstat (limited to 'libiberty/cp-demangle.c')
| -rw-r--r-- | libiberty/cp-demangle.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c index 15ef3b48785..d84929eca20 100644 --- a/libiberty/cp-demangle.c +++ b/libiberty/cp-demangle.c @@ -3609,7 +3609,11 @@ d_local_name (struct d_info *di) } } -/* <discriminator> ::= _ <(non-negative) number> +/* <discriminator> ::= _ <number> # when number < 10 + ::= __ <number> _ # when number >= 10 + + <discriminator> ::= _ <number> # when number >=10 + is also accepted to support gcc versions that wrongly mangled that way. We demangle the discriminator, but we don't print it out. FIXME: We should print it out in verbose mode. */ @@ -3617,14 +3621,28 @@ d_local_name (struct d_info *di) static int d_discriminator (struct d_info *di) { - int discrim; + int discrim, num_underscores = 1; if (d_peek_char (di) != '_') return 1; d_advance (di, 1); + if (d_peek_char (di) == '_') + { + ++num_underscores; + d_advance (di, 1); + } + discrim = d_number (di); if (discrim < 0) return 0; + if (num_underscores > 1 && discrim >= 10) + { + if (d_peek_char (di) == '_') + d_advance (di, 1); + else + return 0; + } + return 1; } |