1 ; RUN: opt < %s -deadargelim -S | not grep DEADARG 2 3 ; test - an obviously dead argument 4 define internal i32 @test(i32 %v, i32 %DEADARG1, i32* %p) { 5 store i32 %v, i32* %p 6 ret i32 %v 7 } 8 9 ; hardertest - an argument which is only used by a call of a function with a 10 ; dead argument. 11 define internal i32 @hardertest(i32 %DEADARG2) { 12 %p = alloca i32 ; <i32*> [#uses=1] 13 %V = call i32 @test( i32 5, i32 %DEADARG2, i32* %p ) ; <i32> [#uses=1] 14 ret i32 %V 15 } 16 17 ; evenhardertest - recursive dead argument... 18 define internal void @evenhardertest(i32 %DEADARG3) { 19 call void @evenhardertest( i32 %DEADARG3 ) 20 ret void 21 } 22 23 define internal void @needarg(i32 %TEST) { 24 call i32 @needarg2( i32 %TEST ) ; <i32>:1 [#uses=0] 25 ret void 26 } 27 28 define internal i32 @needarg2(i32 %TEST) { 29 ret i32 %TEST 30 } 31 32 define internal void @needarg3(i32 %TEST3) { 33 call void @needarg( i32 %TEST3 ) 34 ret void 35 } 36 37
