http://llvm.org/bugs/show_bug.cgi?id=9640
Summary: clang++ optimizer causes std::bad_alloc in
boost::unordered_set<>::insert
Product: clang
Version: 2.8
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Created an attachment (id=6402)
--> (http://llvm.org/bugs/attachment.cgi?id=6402)
C++ code to show misoptimization causing std::bad_alloc
clang version 2.8 (branches/release_28)
Target: i386-pc-linux-gnu
Thread model: posix
LSB Version:
core-2.0-noarch:core-3.2-noarch:core-4.0-noarch:core-2.0-ia32:core-3.2-ia32:core-4.0-ia32:desktop-4.0-ia32:desktop-4.0-noarch:graphics-2.0-ia32:graphics-2.0-noarch:graphics-3.2-ia32:graphics-3.2-noarch:graphics-4.0-ia32:graphics-4.0-noarch
Distributor ID: SUSE LINUX
Description: openSUSE 11.4 (i586)
Release: 11.4
Codename: Celadon
boost-devel-1.44.0-5.1.i586
Greetings,
the attached program works OK when compiled with g++ 4.5:
copying tokens to capabilities
token FOO
token BAR
token BAZ
IMAPCapa::IMAPCapa(const std::string &) completed
but barfs when compiled with clang++ 2.8:
$ clang++ -Wall -pedantic-errors -Wextra -g -O -fexceptions -march=athlon-xp -o
break break.cpp
$ ./break
copying tokens to capabilities
token FOO
caught std::bad_alloc
Apparently clang version 2.9 (trunk 116146) Target: x86_64-unknown-linux-gnu
and libboost1.40-dev (Ubuntu 10.10) fares better (and succeeds like g++ 4.5
does).
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