2006-12-08-Phi-ICmp-Op-Fold.ll
2.38 KB
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; RUN: opt < %s -instcombine -S | \
; RUN: grep "icmp sgt"
; END.
target datalayout = "e-p:32:32"
target triple = "i686-pc-linux-gnu"
%struct.point = type { i32, i32 }
define i32 @visible(i32 %direction, i64 %p1.0, i64 %p2.0, i64 %p3.0) {
entry:
%p1_addr = alloca %struct.point ; <%struct.point*> [#uses=2]
%p2_addr = alloca %struct.point ; <%struct.point*> [#uses=2]
%p3_addr = alloca %struct.point ; <%struct.point*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
%tmp = bitcast %struct.point* %p1_addr to { i64 }* ; <{ i64 }*> [#uses=1]
%tmp.upgrd.1 = getelementptr { i64 }, { i64 }* %tmp, i64 0, i32 0 ; <i64*> [#uses=1]
store i64 %p1.0, i64* %tmp.upgrd.1
%tmp1 = bitcast %struct.point* %p2_addr to { i64 }* ; <{ i64 }*> [#uses=1]
%tmp2 = getelementptr { i64 }, { i64 }* %tmp1, i64 0, i32 0 ; <i64*> [#uses=1]
store i64 %p2.0, i64* %tmp2
%tmp3 = bitcast %struct.point* %p3_addr to { i64 }* ; <{ i64 }*> [#uses=1]
%tmp4 = getelementptr { i64 }, { i64 }* %tmp3, i64 0, i32 0 ; <i64*> [#uses=1]
store i64 %p3.0, i64* %tmp4
%tmp.upgrd.2 = icmp eq i32 %direction, 0 ; <i1> [#uses=1]
%tmp5 = bitcast %struct.point* %p1_addr to { i64 }* ; <{ i64 }*> [#uses=1]
%tmp6 = getelementptr { i64 }, { i64 }* %tmp5, i64 0, i32 0 ; <i64*> [#uses=1]
%tmp.upgrd.3 = load i64, i64* %tmp6 ; <i64> [#uses=1]
%tmp7 = bitcast %struct.point* %p2_addr to { i64 }* ; <{ i64 }*> [#uses=1]
%tmp8 = getelementptr { i64 }, { i64 }* %tmp7, i64 0, i32 0 ; <i64*> [#uses=1]
%tmp9 = load i64, i64* %tmp8 ; <i64> [#uses=1]
%tmp10 = bitcast %struct.point* %p3_addr to { i64 }* ; <{ i64 }*> [#uses=1]
%tmp11 = getelementptr { i64 }, { i64 }* %tmp10, i64 0, i32 0 ; <i64*> [#uses=1]
%tmp12 = load i64, i64* %tmp11 ; <i64> [#uses=1]
%tmp13 = call i32 @determinant( i64 %tmp.upgrd.3, i64 %tmp9, i64 %tmp12 ) ; <i32> [#uses=2]
br i1 %tmp.upgrd.2, label %cond_true, label %cond_false
cond_true: ; preds = %entry
%tmp14 = icmp slt i32 %tmp13, 0 ; <i1> [#uses=1]
%tmp14.upgrd.4 = zext i1 %tmp14 to i32 ; <i32> [#uses=1]
br label %return
cond_false: ; preds = %entry
%tmp26 = icmp sgt i32 %tmp13, 0 ; <i1> [#uses=1]
%tmp26.upgrd.5 = zext i1 %tmp26 to i32 ; <i32> [#uses=1]
br label %return
return: ; preds = %cond_false, %cond_true
%retval.0 = phi i32 [ %tmp14.upgrd.4, %cond_true ], [ %tmp26.upgrd.5, %cond_false ] ; <i32> [#uses=1]
ret i32 %retval.0
}
declare i32 @determinant(i64, i64, i64)