Simplify Spiral-generated code #187

Job	Run time
Build static on ubuntu-latest	57s
build-windows	2m 6s
build-macos (macos-latest)	1m 22s
build-macos (flyci-macos-large-latest-m2)	19s
Build on ubuntu20.04 aarch64 g++-8	7m 34s
Build on ubuntu-20.04 g++-7	52s
Build on ubuntu20.04 aarch64 g++-9	7m 5s
Build on ubuntu-20.04 g++-8	46s
Build on ubuntu20.04 aarch64 g++-10	7m 38s
Build on ubuntu-latest g++-9	1m 16s
Build on ubuntu22.04 aarch64 g++-12	7m 7s
Build on ubuntu-latest g++-10	1m 20s
Build on ubuntu20.04 aarch64 clang-9	11m 22s
Build on ubuntu-20.04 clang-7	49s
Build on ubuntu20.04 aarch64 clang-10	11m 5s
Build on ubuntu-20.04 clang-8	59s
Build on ubuntu22.04 aarch64 clang-14	10m 27s
Build on ubuntu-20.04 clang-9	55s
Build on ubuntu22.04 armv7 g++	7m 16s
Build on ubuntu-20.04 clang-10	53s
Build on ubuntu22.04 ppc64le g++-12	7m 46s
Build on ubuntu-20.04 clang-11	56s
Build on ubuntu22.04 s390x g++-12	6m 19s
Build on ubuntu-latest clang-12	1m 0s
Build on ubuntu22.04 riscv64 g++-12	6m 11s
Build on ubuntu-latest clang-13	59s
Build on ubuntu-latest clang-14	1m 0s
	1h 46m 19s

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