ref: 59e73e64ca2f5d9665b314279b87d376a5eafddb
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)!