nir: allow for isub and fsub in loop_analyze

13 jobs for !1236 with radv_lower_sub in 20 minutes and 10 seconds (queued for 7 seconds)
detached
Status Job ID Name Coverage
  Containers Build
passed #453816
debian

00:00:20

 
  Build+Test
passed #453825
meson-arm64

00:02:03

passed #453824
meson-armhf

00:02:27

passed #453818
meson-clang

00:08:20

passed #453822
meson-clover

00:07:52

passed #453826
meson-i386

00:02:01

passed #453821
meson-main

00:05:22

passed #453817
meson-swr-glvnd

00:05:24

passed #453823
meson-vulkan

00:02:02

passed #453828
scons-llvm

00:05:13

passed #453827
scons-nollvm

00:03:51

passed #453819
scons-swr

00:08:06

passed #453820
scons-win64

00:05:58