ref: 7bb6f71f0b51afd06446fe5138f5e90f996af7e4
dir: /test/asm/deprecated-pi.err/
warning: deprecated-pi.asm(2): [-Wobsolete]
`_PI` is deprecated; use 3.14159
ERROR: deprecated-pi.asm(4):
Built-in symbol '_PI' cannot be purged
error: Assembly aborted (1 errors)!