ref: 570cd62b81ef8b5dfe814375a1cf4c6715bea0c4
dir: /test/asm/deprecated-pi.err/
warning: deprecated-pi.asm(2): [-Wobsolete]
`_PI` is deprecated; use 3.14159
error: deprecated-pi.asm(3):
Built-in symbol '_PI' cannot be purged
error: Assembly aborted (1 error)!