[Bug c/66740] omp simd reduction miscompiles at -O3 with AVX (recent regression)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66740 --- Comment #2 from tprince at computer dot org --- $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/gcc6.0/libexec/gcc/x86_64-unknown-cygwin/6.0.0/lt o-wrapper.exe Target: x86_64-unknown-cygwin Configured with:

[Bug c/66740] omp simd reduction miscompiles at -O3 with AVX (recent regression)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66740 --- Comment #3 from tprince at computer dot org --- $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/local/gcc6.0/libexec/gcc/x86_64-unknown-cygwin/6.0.0/lt o-wrapper.exe Target: x86_64-unknown-cygwin Configured with:

[Bug c/66740] omp simd reduction miscompiles at -O3 with AVX (recent regression)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66740 --- Comment #1 from tprince at computer dot org --- Created attachment 35898 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=35898action=edit C source