llvm-6502/test/CodeGen/X86/2008-02-22-ReMatBug.ll

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; RUN: llc < %s -march=x86 -stats |& grep {Number of re-materialization} | grep 2
; rdar://5761454
%struct.quad_struct = type { i32, i32, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct* }
define %struct.quad_struct* @MakeTree(i32 %size, i32 %center_x, i32 %center_y, i32 %lo_proc, i32 %hi_proc, %struct.quad_struct* %parent, i32 %ct, i32 %level) nounwind {
entry:
br i1 true, label %bb43.i, label %bb.i
bb.i: ; preds = %entry
ret %struct.quad_struct* null
bb43.i: ; preds = %entry
br i1 true, label %CheckOutside.exit40.i, label %bb11.i38.i
bb11.i38.i: ; preds = %bb43.i
ret %struct.quad_struct* null
CheckOutside.exit40.i: ; preds = %bb43.i
br i1 true, label %CheckOutside.exit30.i, label %bb11.i28.i
bb11.i28.i: ; preds = %CheckOutside.exit40.i
ret %struct.quad_struct* null
CheckOutside.exit30.i: ; preds = %CheckOutside.exit40.i
br i1 true, label %CheckOutside.exit20.i, label %bb11.i18.i
bb11.i18.i: ; preds = %CheckOutside.exit30.i
ret %struct.quad_struct* null
CheckOutside.exit20.i: ; preds = %CheckOutside.exit30.i
br i1 true, label %bb34, label %bb11.i8.i
bb11.i8.i: ; preds = %CheckOutside.exit20.i
ret %struct.quad_struct* null
bb34: ; preds = %CheckOutside.exit20.i
%tmp15.reg2mem.0 = sdiv i32 %size, 2 ; <i32> [#uses=7]
%tmp85 = sub i32 %center_y, %tmp15.reg2mem.0 ; <i32> [#uses=2]
%tmp88 = sub i32 %center_x, %tmp15.reg2mem.0 ; <i32> [#uses=2]
%tmp92 = tail call %struct.quad_struct* @MakeTree( i32 %tmp15.reg2mem.0, i32 %tmp88, i32 %tmp85, i32 0, i32 %hi_proc, %struct.quad_struct* null, i32 2, i32 0 ) nounwind ; <%struct.quad_struct*> [#uses=0]
%tmp99 = add i32 0, %hi_proc ; <i32> [#uses=1]
%tmp100 = sdiv i32 %tmp99, 2 ; <i32> [#uses=1]
%tmp110 = tail call %struct.quad_struct* @MakeTree( i32 %tmp15.reg2mem.0, i32 0, i32 %tmp85, i32 0, i32 %tmp100, %struct.quad_struct* null, i32 3, i32 0 ) nounwind ; <%struct.quad_struct*> [#uses=0]
%tmp122 = add i32 %tmp15.reg2mem.0, %center_y ; <i32> [#uses=2]
%tmp129 = tail call %struct.quad_struct* @MakeTree( i32 %tmp15.reg2mem.0, i32 0, i32 %tmp122, i32 0, i32 0, %struct.quad_struct* null, i32 1, i32 0 ) nounwind ; <%struct.quad_struct*> [#uses=0]
%tmp147 = tail call %struct.quad_struct* @MakeTree( i32 %tmp15.reg2mem.0, i32 %tmp88, i32 %tmp122, i32 %lo_proc, i32 0, %struct.quad_struct* null, i32 0, i32 0 ) nounwind ; <%struct.quad_struct*> [#uses=0]
unreachable
}