https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114417
Bug ID: 114417
Summary: simd parameters are passed by memory on x64 , not
using the available sse registers
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: lee.imple at gmail dot com
Target Milestone: ---
https://godbolt.org/z/3GYnadqc1
In current implementation, SIMD parameters are passed by memory, while the
equivalent vector parameters are passed by SSE registers. If the equivalent
vector parameters can be passed by SSE registers, can we use SSE registers for
SIMD parameters?
Maybe the performance difference is not so significant, but I just want to keep
everything in registers.
