------- Comment #5 from hjl dot tools at gmail dot com 2008-02-01 18:40 ------- The test works on Linux/Intel64 with -m32: [hjl@gnu-27 g++]$ /export/build/gnu/gcc/build-x86_64-linux/gcc/testsuite/g++/../../g++ -B/export/build/gnu/gcc/build-x86_64-linux/gcc/testsuite/g++/../../ /net/gnu-13/export/gnu/src/gcc/gcc/gcc/testsuite/g++.dg/conversion/simd3.C -nostdinc++ -I/export/build/gnu/gcc/build-x86_64-linux/x86_64-unknown-linux-gnu/32/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/export/build/gnu/gcc/build-x86_64-linux/x86_64-unknown-linux-gnu/32/libstdc++-v3/include -I/net/gnu-13/export/gnu/src/gcc/gcc/libstdc++-v3/libsupc++ -I/net/gnu-13/export/gnu/src/gcc/gcc/libstdc++-v3/include/backward -I/net/gnu-13/export/gnu/src/gcc/gcc/libstdc++-v3/testsuite/util -fmessage-length=0 -ansi -pedantic-errors -Wno-long-long -fno-show-column -S -m32 -o simd3.s /net/gnu-13/export/gnu/src/gcc/gcc/gcc/testsuite/g++.dg/conversion/simd3.C: In function âvoid foo()â: /net/gnu-13/export/gnu/src/gcc/gcc/gcc/testsuite/g++.dg/conversion/simd3.C:12: error: invalid operands to binary + (have âfloat __vector__â and âint __vector__â) /net/gnu-13/export/gnu/src/gcc/gcc/gcc/testsuite/g++.dg/conversion/simd3.C:13: note: use -flax-vector-conversions to permit conversions between vectors with differing element types or numbers of subparts /net/gnu-13/export/gnu/src/gcc/gcc/gcc/testsuite/g++.dg/conversion/simd3.C:13: error: cannot convert âunsigned int __vector__â to âint __vector__â in assignment [hjl@gnu-27 g++]$ It may be a 32bit host issue. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35049