x86: Favor addl $-1 over decl
x86: Favor addl $-1 over decl

Because the optimization manual tells us to.

ahmedammar/platform_external_gst_liborc,mojaves/orc,jpakkane/orc,jpakkane/orc,Distrotech/orc,okuoku/nmosh-orc,jpakkane/orc,mojaves/orc,okuoku/nmosh-orc,MOXfiles/orc,ijsf/OpenWebRTC-orc,ahmedammar/platform_external_gst_liborc,ijsf/OpenWebRTC-orc,MOXfiles/orc,Distrotech/orc,MOXfiles/orc,Distrotech/orc,mojaves/orc,okuoku/nmosh-orc,ijsf/OpenWebRTC-orc