Nikita Popov b2df007413 [FastISel] Support unreachable with NoTrapAfterNoReturn (#118296) ...

Currently FastISel triggers a fallback if there is an unreachable
terminator and the TrapUnreachable option is enabled (the ISD::TRAP
selection does not actually work).

Add handling for NoTrapAfterNoReturn, in which case we don't actually
need to emit a trap. The test is just there to make sure there is no
FastISel fallback (which is why I'm not testing the case without
noreturn). We have other tests that check the actual unreachable codegen
variations.

2024-12-03 12:54:26 +01:00

88 KiB

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