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      1 ; RUN: opt < %s -instcombine -S | grep select
      2 ; END.
      3 
      4 target datalayout = "e-p:32:32"
      5 target triple = "i686-pc-linux-gnu"
      6         %struct.point = type { i32, i32 }
      7 
      8 define i32 @visible(i32 %direction, i64 %p1.0, i64 %p2.0, i64 %p3.0) {
      9 entry:
     10         %p1_addr = alloca %struct.point         ; <%struct.point*> [#uses=2]
     11         %p2_addr = alloca %struct.point         ; <%struct.point*> [#uses=2]
     12         %p3_addr = alloca %struct.point         ; <%struct.point*> [#uses=2]
     13         %tmp = bitcast %struct.point* %p1_addr to { i64 }*              ; <{ i64 }*> [#uses=1]
     14         %tmp.upgrd.1 = getelementptr { i64 }* %tmp, i32 0, i32 0                ; <i64*> [#uses=1]
     15         store i64 %p1.0, i64* %tmp.upgrd.1
     16         %tmp1 = bitcast %struct.point* %p2_addr to { i64 }*             ; <{ i64 }*> [#uses=1]
     17         %tmp2 = getelementptr { i64 }* %tmp1, i32 0, i32 0              ; <i64*> [#uses=1]
     18         store i64 %p2.0, i64* %tmp2
     19         %tmp3 = bitcast %struct.point* %p3_addr to { i64 }*             ; <{ i64 }*> [#uses=1]
     20         %tmp4 = getelementptr { i64 }* %tmp3, i32 0, i32 0              ; <i64*> [#uses=1]
     21         store i64 %p3.0, i64* %tmp4
     22         %tmp.upgrd.2 = icmp eq i32 %direction, 0                ; <i1> [#uses=1]
     23         %tmp5 = bitcast %struct.point* %p1_addr to { i64 }*             ; <{ i64 }*> [#uses=1]
     24         %tmp6 = getelementptr { i64 }* %tmp5, i32 0, i32 0              ; <i64*> [#uses=1]
     25         %tmp.upgrd.3 = load i64* %tmp6          ; <i64> [#uses=1]
     26         %tmp7 = bitcast %struct.point* %p2_addr to { i64 }*             ; <{ i64 }*> [#uses=1]
     27         %tmp8 = getelementptr { i64 }* %tmp7, i32 0, i32 0              ; <i64*> [#uses=1]
     28         %tmp9 = load i64* %tmp8         ; <i64> [#uses=1]
     29         %tmp10 = bitcast %struct.point* %p3_addr to { i64 }*            ; <{ i64 }*> [#uses=1]
     30         %tmp11 = getelementptr { i64 }* %tmp10, i32 0, i32 0            ; <i64*> [#uses=1]
     31         %tmp12 = load i64* %tmp11               ; <i64> [#uses=1]
     32         %tmp13 = call i32 @determinant( i64 %tmp.upgrd.3, i64 %tmp9, i64 %tmp12 )         ; <i32> [#uses=2]
     33         %tmp14 = icmp slt i32 %tmp13, 0         ; <i1> [#uses=1]
     34         %tmp26 = icmp sgt i32 %tmp13, 0         ; <i1> [#uses=1]
     35         %retval.0.in = select i1 %tmp.upgrd.2, i1 %tmp14, i1 %tmp26             ; <i1> [#uses=1]
     36         %retval.0 = zext i1 %retval.0.in to i32         ; <i32> [#uses=1]
     37         ret i32 %retval.0
     38 }
     39 
     40 declare i32 @determinant(i64, i64, i64)
     41 
     42