|  | ; RUN: llc < %s -march=x86 -mtriple=x86_64-unknown-freebsd7.2 | 
|  | ; PR4478 | 
|  |  | 
|  | %struct.sockaddr = type <{ i8, i8, [14 x i8] }> | 
|  |  | 
|  | define i32 @main(i32 %argc, i8** %argv) nounwind { | 
|  | entry: | 
|  | br label %while.cond | 
|  |  | 
|  | while.cond:		; preds = %sw.bb6, %entry | 
|  | switch i32 undef, label %sw.default [ | 
|  | i32 -1, label %while.end | 
|  | i32 119, label %sw.bb6 | 
|  | ] | 
|  |  | 
|  | sw.bb6:		; preds = %while.cond | 
|  | br i1 undef, label %if.then, label %while.cond | 
|  |  | 
|  | if.then:		; preds = %sw.bb6 | 
|  | ret i32 1 | 
|  |  | 
|  | sw.default:		; preds = %while.cond | 
|  | ret i32 1 | 
|  |  | 
|  | while.end:		; preds = %while.cond | 
|  | br i1 undef, label %if.then15, label %if.end16 | 
|  |  | 
|  | if.then15:		; preds = %while.end | 
|  | ret i32 1 | 
|  |  | 
|  | if.end16:		; preds = %while.end | 
|  | br i1 undef, label %lor.lhs.false, label %if.then21 | 
|  |  | 
|  | lor.lhs.false:		; preds = %if.end16 | 
|  | br i1 undef, label %if.end22, label %if.then21 | 
|  |  | 
|  | if.then21:		; preds = %lor.lhs.false, %if.end16 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end22:		; preds = %lor.lhs.false | 
|  | br i1 undef, label %lor.lhs.false27, label %if.then51 | 
|  |  | 
|  | lor.lhs.false27:		; preds = %if.end22 | 
|  | br i1 undef, label %lor.lhs.false39, label %if.then51 | 
|  |  | 
|  | lor.lhs.false39:		; preds = %lor.lhs.false27 | 
|  | br i1 undef, label %if.end52, label %if.then51 | 
|  |  | 
|  | if.then51:		; preds = %lor.lhs.false39, %lor.lhs.false27, %if.end22 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end52:		; preds = %lor.lhs.false39 | 
|  | br i1 undef, label %if.then57, label %if.end58 | 
|  |  | 
|  | if.then57:		; preds = %if.end52 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end58:		; preds = %if.end52 | 
|  | br i1 undef, label %if.then64, label %if.end65 | 
|  |  | 
|  | if.then64:		; preds = %if.end58 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end65:		; preds = %if.end58 | 
|  | br i1 undef, label %if.then71, label %if.end72 | 
|  |  | 
|  | if.then71:		; preds = %if.end65 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end72:		; preds = %if.end65 | 
|  | br i1 undef, label %if.then83, label %if.end84 | 
|  |  | 
|  | if.then83:		; preds = %if.end72 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end84:		; preds = %if.end72 | 
|  | br i1 undef, label %if.then101, label %if.end102 | 
|  |  | 
|  | if.then101:		; preds = %if.end84 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end102:		; preds = %if.end84 | 
|  | br i1 undef, label %if.then113, label %if.end114 | 
|  |  | 
|  | if.then113:		; preds = %if.end102 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end114:		; preds = %if.end102 | 
|  | br i1 undef, label %if.then209, label %if.end210 | 
|  |  | 
|  | if.then209:		; preds = %if.end114 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end210:		; preds = %if.end114 | 
|  | br i1 undef, label %if.then219, label %if.end220 | 
|  |  | 
|  | if.then219:		; preds = %if.end210 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end220:		; preds = %if.end210 | 
|  | br i1 undef, label %if.end243, label %lor.lhs.false230 | 
|  |  | 
|  | lor.lhs.false230:		; preds = %if.end220 | 
|  | unreachable | 
|  |  | 
|  | if.end243:		; preds = %if.end220 | 
|  | br i1 undef, label %if.then249, label %if.end250 | 
|  |  | 
|  | if.then249:		; preds = %if.end243 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end250:		; preds = %if.end243 | 
|  | br i1 undef, label %if.end261, label %if.then260 | 
|  |  | 
|  | if.then260:		; preds = %if.end250 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end261:		; preds = %if.end250 | 
|  | br i1 undef, label %if.then270, label %if.end271 | 
|  |  | 
|  | if.then270:		; preds = %if.end261 | 
|  | ret i32 1 | 
|  |  | 
|  | if.end271:		; preds = %if.end261 | 
|  | %call.i = call i32 @arc4random() nounwind		; <i32> [#uses=1] | 
|  | %rem.i = urem i32 %call.i, 16383		; <i32> [#uses=1] | 
|  | %rem1.i = trunc i32 %rem.i to i16		; <i16> [#uses=1] | 
|  | %conv2.i = or i16 %rem1.i, -16384		; <i16> [#uses=1] | 
|  | %0 = call i16 asm "xchgb ${0:h}, ${0:b}", "=Q,0,~{dirflag},~{fpsr},~{flags}"(i16 %conv2.i) nounwind		; <i16> [#uses=1] | 
|  | store i16 %0, i16* undef | 
|  | %call281 = call i32 @bind(i32 undef, %struct.sockaddr* undef, i32 16) nounwind		; <i32> [#uses=0] | 
|  | unreachable | 
|  | } | 
|  |  | 
|  | declare i32 @bind(i32, %struct.sockaddr*, i32) | 
|  |  | 
|  | declare i32 @arc4random() |