ref: 9d2d5cfcfe4d647cb0a8a5363653e05b115f9940
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)!