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llvm-mirror/test/CodeGen/Hexagon/swp-order-deps1.ll

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; RUN: llc -march=hexagon -enable-pipeliner < %s
; REQUIRES: asserts
; Check that the dependences are order correctly, and the list can be
; updated when the instruction to insert has a def and use conflict.
; Function Attrs: nounwind
define fastcc void @f0() #0 {
b0:
br i1 undef, label %b7, label %b1
b1: ; preds = %b0
br i1 undef, label %b2, label %b4
b2: ; preds = %b1
%v0 = load i16, i16* undef, align 2
br label %b5
b3: ; preds = %b5
br label %b4
b4: ; preds = %b3, %b1
%v1 = phi i16 [ %v11, %b3 ], [ 0, %b1 ]
br i1 false, label %b7, label %b6
b5: ; preds = %b5, %b2
%v2 = phi i16 [ %v3, %b5 ], [ undef, %b2 ]
%v3 = phi i16 [ 0, %b5 ], [ %v0, %b2 ]
%v4 = phi i16 [ %v2, %b5 ], [ undef, %b2 ]
%v5 = phi i16 [ %v11, %b5 ], [ 0, %b2 ]
%v6 = phi i32 [ %v12, %b5 ], [ undef, %b2 ]
%v7 = or i16 0, %v5
%v8 = lshr i16 %v4, 8
%v9 = or i16 %v8, %v7
%v10 = or i16 0, %v9
%v11 = or i16 0, %v10
%v12 = add nsw i32 %v6, -32
%v13 = icmp sgt i32 %v12, 31
br i1 %v13, label %b5, label %b3
b6: ; preds = %b4
br label %b7
b7: ; preds = %b6, %b4, %b0
ret void
}
attributes #0 = { nounwind "target-cpu"="hexagonv55" }