ref: 46d6652df110b62ea1fcbc21400bb50937457e76
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 errors)!