llvm-project/llvm/test/Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll

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; RUN: llvm-upgrade < %s | llvm-as | opt -loop-unswitch -disable-output
%struct.BLEND_MAP = type { short, short, short, int, %struct.BLEND_MAP_ENTRY* }
%struct.BLEND_MAP_ENTRY = type { float, ubyte, { [5 x float], [4 x ubyte] } }
%struct.TPATTERN = type { ushort, ushort, ushort, int, float, float, float, %struct.WARP*, %struct.TPATTERN*, %struct.BLEND_MAP*, { %struct.anon, [4 x ubyte] } }
%struct.TURB = type { ushort, %struct.WARP*, [3 x double], int, float, float }
%struct.WARP = type { ushort, %struct.WARP* }
%struct.anon = type { float, [3 x double] }
implementation ; Functions:
void %Parse_Pattern() {
entry:
br label %bb1096.outer20
bb671: ; preds = %cond_true1099
br label %bb1096.outer23
bb1096.outer20.loopexit: ; preds = %cond_true1099
%Local_Turb.0.ph24.lcssa = phi %struct.TURB* [ %Local_Turb.0.ph24, %cond_true1099 ] ; <%struct.TURB*> [#uses=1]
br label %bb1096.outer20
bb1096.outer20: ; preds = %bb1096.outer20.loopexit, %entry
%Local_Turb.0.ph22 = phi %struct.TURB* [ undef, %entry ], [ %Local_Turb.0.ph24.lcssa, %bb1096.outer20.loopexit ] ; <%struct.TURB*> [#uses=1]
%tmp1098 = seteq int 0, 0 ; <bool> [#uses=1]
br label %bb1096.outer23
bb1096.outer23: ; preds = %bb1096.outer20, %bb671
%Local_Turb.0.ph24 = phi %struct.TURB* [ %Local_Turb.0.ph22, %bb1096.outer20 ], [ null, %bb671 ] ; <%struct.TURB*> [#uses=2]
br label %bb1096
bb1096: ; preds = %cond_true1099, %bb1096.outer23
br bool %tmp1098, label %cond_true1099, label %bb1102
cond_true1099: ; preds = %bb1096
switch int 0, label %bb1096.outer20.loopexit [
int 161, label %bb671
int 359, label %bb1096
]
bb1102: ; preds = %bb1096
%Local_Turb.0.ph24.lcssa1 = phi %struct.TURB* [ %Local_Turb.0.ph24, %bb1096 ] ; <%struct.TURB*> [#uses=0]
ret void
}