Displaying 1 result from an estimated 1 matches for "a1e5299c".
2017 Aug 21
2
Vectorization in LLVM x86 backend
Hi all,
Recently I compiled the attached .c file using Clang with "-mavx2 -mfma
-m32 -O3" optimization flags.
First I used -emit-llvm and inspected the LLVM IR and there are no vector
instructions. Then I got the assembly output of the file in it I can
clearly see vector instructions in it.
Neither the SLPVectorizer or the LoopVectorizer is however doing any
vectorization (also