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gcc 4.9.2 cygwin64 internal error parsing decimal float point values
- From: "Marc Reynolds" <marc dot b dot reynolds at gmail dot com>
- To: <gcc-bugs at gcc dot gnu dot org>, <cygwin at cygwin dot com>
- Cc: "'Christoph Lauter'" <christoph dot lauter at lip6 dot fr>
- Date: Sat, 17 Jan 2015 14:10:22 +0100
- Subject: gcc 4.9.2 cygwin64 internal error parsing decimal float point values
- Authentication-results: sourceware.org; auth=none
- References: <CAFnpKfakaez5xpSqBGr3X27_cv4M-pC7ZWkTZ90pEwPeQV+VOA at mail dot gmail dot com> <5412AC16 dot 3050503 at lip6 dot fr> <54acfb13 dot 82aec20a dot 4cb3 dot 6875 at mx dot google dot com> <54B39B02 dot 6030402 at inria dot fr> <54b39d4e dot ebbdc20a dot 21b2 dot 4718 at mx dot google dot com> <54B780BC dot 3090406 at lip6 dot fr> <54b816d3 dot 6c47c20a dot 3a84 dot 4155 at mx dot google dot com> <54B82131 dot 2040208 at lip6 dot fr> <54b8dea9 dot 8965b40a dot 54f5 dot ffffc0ef at mx dot google dot com> <54B8E726 dot 7060204 at lip6 dot fr> <54b8fbfd dot 690cb50a dot 2096 dot ffffea7e at mx dot google dot com> <54B8FF57 dot 6080204 at lip6 dot fr>
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The precompiled binary installed from the package manager labeled "4.9.2-1".
The following program reproduces:
-----
int main()
{
float f = 1.17549435082228750797e-38F;
return f != 0x0.000002P-126f;
}
----
init2.c:37: MPFR assertion failed: (32 - 0) == ((32 - 0)/8) * 8 && sizeof(mp_limb_t) == ((32 - 0)/8)
test2.c: In function 'main':
test2.c:3:3: internal compiler error: Aborted
float f = 1.17549435082228750797e-38F;
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
----
For form sake: gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/4.9.2/lto-wrapper.exe
Target: x86_64-pc-cygwin
Configured with: /cygdrive/i/szsz/tmpp/gcc/gcc-4.9.2-1.x86_64/src/gcc-4.9.2/configure --srcdir=/cygdrive/i/szsz/tmpp/gcc/gcc-4.9.2-1.x86_64/src/gcc-4.9.2 --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --libexecdir=/usr/libexec --datadir=/usr/share --localstatedir=/var --sysconfdir=/etc --libdir=/usr/lib --datarootdir=/usr/share --docdir=/usr/share/doc/gcc --htmldir=/usr/share/doc/gcc/html -C --build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=x86_64-pc-cygwin --without-libiconv-prefix --without-libintl-prefix --libexecdir=/usr/lib --enable-shared --enable-shared-libgcc --enable-static --enable-version-specific-runtime-libs --enable-bootstrap --enable-__cxa_atexit --with-dwarf2 --with-tune=generic --enable-languages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-graphite --enable-threads=posix --enable-libatomic --enable-libgomp --disable-libitm --enable-libquadmath --enable-libquadmath-support --enable-libssp --enable-libada --enable-libgcj-sublibs --disable-java-awt --disable-symvers --with-ecj-jar=/usr/share/java/ecj.jar --with-gnu-ld --with-gnu-as --with-cloog-include=/usr/include/cloog-isl --without-libiconv-prefix --without-libintl-prefix --with-system-zlib --enable-linker-build-id
Thread model: posix
gcc version 4.9.2 (GCC)
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