de3958fd74
The 'optinfo' build target asks GCC to print optimizations that could not be performed to local 'missing.txt' files; these will appear in each repsective subdirectory having source files. Both GCC and Clang will now print Verbose vectorization information during the build process, often describing why vectorization cannot be performed. This commit also enables basic instruction and math vectorization for both the 'release' and 'optinfo' targets. This includes making use of altivec instructions (available on all powerpc processors), and at a minimum sse4.2 on all x86_64 processors (circa-2008+ AMD and Intel CPUs). Vectorization is also re-enabled for GCC FDO builds, which would otherwise be disabled when we switch to -O2 optimizations. |
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| .. | ||
| build | ||
| packages | ||
| main.sh | ||