29206cf0a4
This is for consistency with Clang, which always adds a CPU flag even if it's not specified in CFLAGS. This commit also adds some tests to make sure the Clang target-cpu matches the CPU property in the JSON files. This does have an effect on the generated binaries. The effect is very small though: on average just 0.2% increase in binary size, apparently because Cortex-M3 and Cortex-M4 are compiled a bit differently. However, when rebased on top of https://github.com/tinygo-org/tinygo/pull/2218 (minsize), the difference drops to -0.1% (a slight decrease on average).
6 строки
120 Б
JSON
6 строки
120 Б
JSON
{
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"inherits": ["riscv32"],
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"cpu": "sifive-e31",
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"features": ["+a", "+c", "+m"],
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"build-tags": ["fe310", "sifive"]
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}
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