https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111765
Bug ID: 111765 Summary: RISC-V: Faild to vectorize gen-vect-34.c Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: juzhe.zhong at rivai dot ai Target Milestone: --- https://godbolt.org/z/17qYYKWPM float summul(int n, float *arg1, float *arg2) { int i; float res1 = 1.0; for(i = 0; i < n; i++) { if(arg2[i]) res1 *= arg1[i]; } return res1; } I found both ARM SVE and RVV failed to vectorize this case wheras X86 can vectorize it with -mavx2. It seems that we need some tricks on both SVE and RVV backend ?