The "collapse" clause of OpenMP causes the GCC to abort the compilation with an
error. The output of gcc is:
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.3.3-5ubuntu4'
--with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3
--program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug
--enable-objc-gc --enable-mpfr --enable-targets=all --with-tune=generic
--enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu
--target=i486-linux-gnu
Thread model: posix
gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-fopenmp' '-o' 'omp-matrix'
'-mtune=generic' '-pthread'
/usr/lib/gcc/i486-linux-gnu/4.3.3/cc1 -E -quiet -v -D_REENTRANT omp-matrix.c
-D_FORTIFY_SOURCE=2 -mtune=generic -fopenmp -fpch-preprocess -o omp-matrix.i
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/i486-linux-gnu/4.3.3/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/gcc/i486-linux-gnu/4.3.3/include
/usr/lib/gcc/i486-linux-gnu/4.3.3/include-fixed
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-fopenmp' '-o' 'omp-matrix'
'-mtune=generic' '-pthread'
/usr/lib/gcc/i486-linux-gnu/4.3.3/cc1 -fpreprocessed omp-matrix.i -quiet
-dumpbase omp-matrix.c -mtune=generic -auxbase omp-matrix -version -fopenmp
-fstack-protector -o omp-matrix.s
GNU C (Ubuntu 4.3.3-5ubuntu4) version 4.3.3 (i486-linux-gnu)
compiled by GNU C version 4.3.3, GMP version 4.2.4, MPFR version 2.4.0.
GGC heuristics: --param ggc-min-expand=97 --param ggc-min-heapsize=127140
Compiler executable checksum: 0bf5703b57e064ca90b48f4e2c186f4a
omp-matrix.c: In function main:
omp-matrix.c:51: error: expected #pragma omp clause before collapse
Since the program included code written by myself, I searched for an example
program online and found one in a wiki on the Sun website which causes the same
problem:
http://wikis.sun.com/display/openmp/Loop+Collapse
Please note that this is my first bug report for GCC, so I want to apologize in
advance for any mistake :)
--
Summary: OpenMP: "collapse" clause in for-statement causes gcc to
abort with an error
Product: gcc
Version: 4.3.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: frederik dot moellers at gmx dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40418
