blob: 278f9b3396a823c7845d0c5ab8f4c5e086aac2cd [file] [log] [blame]
; RUN: opt < %s -passes='deadargelim,function(dce)' -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