cmake

Fix test fail in i386 (x87 ISA) #456

Job	Run time
linux_clang_latest	2m 37s
linux_gcc_latest	2m 52s
linux_gcc4	50s
linux_archs (i386)	1m 18s
linux_checks (Debug, Default, Valgrind)	4m 21s
linux_gcc5_i386	1m 8s
linux_archs (arm32v7)	5m 3s
linux_opts (gcc, no_fp)	1m 9s
linux_checks (Debug, Default, Sanitizer)	1m 11s
linux_archs (arm64v8)	5m 1s
linux_opts (gcc, no_reader)	23s
linux_checks (Debug, ReduceBinary, Valgrind)	4m 11s
linux_archs (ppc64le)	5m 1s
linux_tinycc	32s
linux_opts (gcc, no_writer)	39s
linux_checks (Debug, ReduceBinary, Sanitizer)	1m 22s
linux_archs (s390x)	5m 0s
linux_opts (gcc, no_utf8)	50s
linux_checks (Release, Default, Valgrind)	2m 55s
linux_archs (riscv64)	5m 5s
linux_opts (clang, no_fp)	43s
macos_clang	30s
linux_checks (Release, Default, Sanitizer)	1m 29s
linux_opts (clang, no_reader)	31s
linux_checks (Release, ReduceBinary, Valgrind)	3m 1s
linux_opts (clang, no_writer)	31s
windows_msvc	1m 30s
linux_checks (Release, ReduceBinary, Sanitizer)	1m 14s
linux_opts (clang, no_utf8)	59s
linux_checks (MinSizeRel, Default, Valgrind)	2m 54s
linux_checks (MinSizeRel, Default, Sanitizer)	1m 20s
codecov	1m 10s
fuzzing	4m 22s
linux_checks (MinSizeRel, ReduceBinary, Valgrind)	3m 47s
linux_checks (MinSizeRel, ReduceBinary, Sanitizer)	1m 11s
	1h 16m 40s

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