1 ; Test that the inliner doesn't leave around dead allocas, and that it folds 2 ; uncond branches away after it is done specializing. 3 4 ; RUN: opt < %s -inline -S | \ 5 ; RUN: not grep {alloca.*uses=0} 6 ; RUN: opt < %s -inline -S | \ 7 ; RUN: not grep {br label} 8 @A = weak global i32 0 ; <i32*> [#uses=1] 9 @B = weak global i32 0 ; <i32*> [#uses=1] 10 @C = weak global i32 0 ; <i32*> [#uses=1] 11 12 define internal fastcc void @foo(i32 %X) { 13 entry: 14 %ALL = alloca i32, align 4 ; <i32*> [#uses=1] 15 %tmp1 = and i32 %X, 1 ; <i32> [#uses=1] 16 %tmp1.upgrd.1 = icmp eq i32 %tmp1, 0 ; <i1> [#uses=1] 17 br i1 %tmp1.upgrd.1, label %cond_next, label %cond_true 18 19 cond_true: ; preds = %entry 20 store i32 1, i32* @A 21 br label %cond_next 22 23 cond_next: ; preds = %cond_true, %entry 24 %tmp4 = and i32 %X, 2 ; <i32> [#uses=1] 25 %tmp4.upgrd.2 = icmp eq i32 %tmp4, 0 ; <i1> [#uses=1] 26 br i1 %tmp4.upgrd.2, label %cond_next7, label %cond_true5 27 28 cond_true5: ; preds = %cond_next 29 store i32 1, i32* @B 30 br label %cond_next7 31 32 cond_next7: ; preds = %cond_true5, %cond_next 33 %tmp10 = and i32 %X, 4 ; <i32> [#uses=1] 34 %tmp10.upgrd.3 = icmp eq i32 %tmp10, 0 ; <i1> [#uses=1] 35 br i1 %tmp10.upgrd.3, label %cond_next13, label %cond_true11 36 37 cond_true11: ; preds = %cond_next7 38 store i32 1, i32* @C 39 br label %cond_next13 40 41 cond_next13: ; preds = %cond_true11, %cond_next7 42 %tmp16 = and i32 %X, 8 ; <i32> [#uses=1] 43 %tmp16.upgrd.4 = icmp eq i32 %tmp16, 0 ; <i1> [#uses=1] 44 br i1 %tmp16.upgrd.4, label %UnifiedReturnBlock, label %cond_true17 45 46 cond_true17: ; preds = %cond_next13 47 call void @ext( i32* %ALL ) 48 ret void 49 50 UnifiedReturnBlock: ; preds = %cond_next13 51 ret void 52 } 53 54 declare void @ext(i32*) 55 56 define void @test() { 57 entry: 58 tail call fastcc void @foo( i32 1 ) 59 tail call fastcc void @foo( i32 2 ) 60 tail call fastcc void @foo( i32 3 ) 61 tail call fastcc void @foo( i32 8 ) 62 ret void 63 } 64
