Package: gcc-4.1
Version: 4.1.1-2
Severity: critical
Justification: breaks unrelated software
Use this little example to see what's happening:
#include <stdio.h>
int main(void) {
char c = '\0';
do {
printf("%d\n", c);
c++;
} while (c != '\0');
return 0;
}
- using -O0 as optimization level with gcc-4.1 works as expected: the values
change from 0 over 127, -128 (because of the signedness) back to 0
- using -O1 with gcc-4.1 makes the values go from 0 to 255
- using -O2 (or higher) results in an infinite loop
This also occurs in gcc-snapshot and does not in gcc < 4.1.
Regards,
Erik
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-2-k7
Locale: [EMAIL PROTECTED], [EMAIL PROTECTED] (charmap=ISO-8859-15) (ignored:
LC_ALL set to [EMAIL PROTECTED])
Versions of packages gcc-4.1 depends on:
ii binutils 2.16.1cvs20060413-1 The GNU assembler, linker and bina
ii cpp-4.1 4.1.1-2 The GNU C preprocessor
ii gcc-4.1-base 4.1.1-2 The GNU Compiler Collection (base
ii libc6 2.3.6-15 GNU C Library: Shared libraries
ii libgcc1 1:4.1.1-2 GCC support library
Versions of packages gcc-4.1 recommends:
ii libc6-dev 2.3.6-15 GNU C Library: Development Librari
ii libmudflap0-dev 4.1.1-2 GCC mudflap support libraries (dev
ii libssp0-dev 4.1.1-2 GCC stack smashing protection libr
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