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| ; RUN: llc -march=hexagon < %s
; REQUIRES: asserts
; Test that the pipeliner doesn't assert when renaming a phi
; that looks like: a = PHI b, a
%s.0 = type { i32, i32*, [0 x i32], [0 x i32], [1 x i32] }
%s.1 = type { %s.2, %s.4, %s.5 }
%s.2 = type { %s.3 }
%s.3 = type { i32 }
%s.4 = type { i32 }
%s.5 = type { [0 x i32], [0 x i32 (i32*, i32*, i32*, i32*, i32*, i32, i32*)*] }
@g0 = external global i32, align 4
@g1 = external global %s.0, align 4
@g2 = external global i32, align 4
@g3 = external global i32, align 4
@g4 = external global i32*, align 4
define void @f0(%s.1* nocapture readonly %a0) #0 {
b0:
%v0 = alloca [0 x i32], align 4
%v1 = load i32, i32* @g0, align 4
%v2 = load i32, i32* undef, align 4
%v3 = load i32*, i32** getelementptr inbounds (%s.0, %s.0* @g1, i32 0, i32 1), align 4
%v4 = load i32, i32* @g2, align 4
%v5 = sub i32 0, %v4
%v6 = getelementptr inbounds i32, i32* %v3, i32 %v5
%v7 = load i32, i32* undef, align 4
switch i32 %v7, label %b15 [
i32 0, label %b1
i32 1, label %b2
]
b1: ; preds = %b0
store i32 0, i32* @g3, align 4
br label %b2
b2: ; preds = %b1, %b0
%v8 = icmp eq i32 %v1, 0
%v9 = icmp sgt i32 %v2, 0
%v10 = getelementptr inbounds [0 x i32], [0 x i32]* %v0, i32 0, i32 0
%v11 = sdiv i32 %v2, 2
%v12 = add i32 %v11, -1
%v13 = getelementptr inbounds [0 x i32], [0 x i32]* %v0, i32 0, i32 1
%v14 = getelementptr inbounds %s.1, %s.1* %a0, i32 0, i32 2, i32 1, i32 %v1
%v15 = sub i32 1, %v4
%v16 = getelementptr inbounds i32, i32* %v3, i32 %v15
%v17 = sdiv i32 %v2, 4
%v18 = icmp slt i32 %v2, -3
%v19 = add i32 %v2, -1
%v20 = lshr i32 %v19, 2
%v21 = mul i32 %v20, 4
%v22 = add i32 %v21, 4
%v23 = add i32 %v11, -2
%v24 = add i32 %v17, 1
%v25 = select i1 %v18, i32 1, i32 %v24
br label %b4
b3: ; preds = %b14
store i32 %v25, i32* @g3, align 4
br label %b4
b4: ; preds = %b13, %b3, %b2
%v26 = phi i32 [ undef, %b2 ], [ %v42, %b3 ], [ %v42, %b13 ]
%v27 = phi i32 [ undef, %b2 ], [ 0, %b3 ], [ 0, %b13 ]
%v28 = phi i32 [ undef, %b2 ], [ %v30, %b3 ], [ %v30, %b13 ]
%v29 = phi i32 [ undef, %b2 ], [ %v43, %b3 ], [ %v43, %b13 ]
%v30 = phi i32 [ undef, %b2 ], [ undef, %b3 ], [ 0, %b13 ]
br i1 %v8, label %b6, label %b5
b5: ; preds = %b5, %b4
br label %b5
b6: ; preds = %b4
br i1 %v9, label %b8, label %b7
b7: ; preds = %b6
store i32 0, i32* @g3, align 4
br label %b11
b8: ; preds = %b6
br i1 undef, label %b9, label %b11
b9: ; preds = %b8
%v31 = load i32*, i32** @g4, align 4
br label %b10
b10: ; preds = %b10, %b9
%v32 = phi i32 [ %v22, %b9 ], [ %v39, %b10 ]
%v33 = phi i32 [ %v29, %b9 ], [ %v38, %b10 ]
%v34 = add nsw i32 %v32, %v28
%v35 = shl i32 %v34, 1
%v36 = getelementptr inbounds i32, i32* %v31, i32 %v35
%v37 = load i32, i32* %v36, align 4
%v38 = select i1 false, i32 0, i32 %v33
%v39 = add nsw i32 %v32, 1
store i32 %v39, i32* @g3, align 4
%v40 = icmp slt i32 %v39, 0
br i1 %v40, label %b10, label %b11
b11: ; preds = %b10, %b8, %b7
%v41 = phi i32 [ %v29, %b8 ], [ %v29, %b7 ], [ %v38, %b10 ]
br i1 false, label %b12, label %b13
b12: ; preds = %b11
br label %b13
b13: ; preds = %b12, %b11
%v42 = load i32, i32* %v10, align 4
%v43 = select i1 false, i32 %v41, i32 1
br i1 %v18, label %b4, label %b14
b14: ; preds = %b14, %b13
br i1 false, label %b14, label %b3
b15: ; preds = %b0
ret void
}
attributes #0 = { nounwind "target-cpu"="hexagonv55" }
|