Mark SLEEF_ALWAYS_INLINE as always_inline #150

Job	Run time
build-native-gcc	4m 8s
build-native-llvm	5m 50s
test-native-gcc	7m 59s
test-native-llvm	7m 39s
build-aarch64-gcc	6m 5s
build-aarch64-llvm	9m 26s
build-armhf-gcc	6m 50s
build-armhf-llvm	3m 42s
build-ppc64el-gcc	4m 45s
build-ppc64el-llvm	9m 11s
build-s390x-gcc	7m 59s
build-s390x-llvm	5m 39s
build-riscv64-llvm	6m 7s
test-aarch64-gcc (qemu_cpu: "max,sve=off")	18m 20s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve128=on")	24m 14s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve256=on")	26m 18s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve512=on")	29m 25s
test-aarch64-llvm (qemu_cpu: "max,sve=off")	20m 4s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve128=on")	23m 58s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve256=on")	28m 15s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve512=on")	29m 43s
test-armhf-gcc (qemu_cpu: "max")	15m 46s
test-armhf-llvm (qemu_cpu: "max")	14m 40s
test-ppc64el-gcc (qemu_cpu: "power10")	28m 14s
test-ppc64el-llvm (qemu_cpu: "power10")	25m 37s
test-s390x-gcc (qemu_cpu: "")	21m 26s
test-s390x-llvm (qemu_cpu: "")	20m 59s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=false")	16m 20s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=128,elen=64,vext_spec=v1.0")	31m 25s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=256,elen=64,vext_spec=v1.0")	41m 30s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=512,elen=64,vext_spec=v1.0")	1h 3m 20s
	9h 24m 54s

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