| ; RUN: opt < %s -deadargelim -die -S > %t |
| ; RUN: cat %t | grep 123 |
| |
| ; This test tries to catch wrongful removal of return values for a specific case |
| ; that was breaking llvm-gcc builds. |
| |
| ; This function has a live return value, it is used by @alive. |
| define internal i32 @test5() { |
| ret i32 123 |
| } |
| |
| ; This function doesn't use the return value @test5 and tries to lure DAE into |
| ; marking @test5's return value dead because only this call is unused. |
| define i32 @dead() { |
| %DEAD = call i32 @test5() |
| ret i32 0 |
| } |
| |
| ; This function ensures the retval of @test5 is live. |
| define i32 @alive() { |
| %LIVE = call i32 @test5() |
| ret i32 %LIVE |
| } |
