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1; RUN: llc < %s2; PR67773 4; MachineSink shouldn't try to sink code in unreachable blocks, as it's5; not worthwhile, and there are corner cases which it doesn't handle.6 7target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"8target triple = "x86_64-unknown-linux-gnu"9 10define double @fn1(ptr %arg, i64 %arg1, i1 %arg2) {11Entry:12 br i1 %arg2, label %Body, label %Exit13 14Exit: ; preds = %Brancher7, %Entry15 ret double undef16 17Body: ; preds = %Entry18 br i1 false, label %Brancher7, label %Body319 20Body3: ; preds = %Body6, %Body3, %Body21 br label %Body322 23Body6: ; preds = %Brancher724 %tmp = fcmp oeq double 0xC04FBB2E40000000, undef ; <i1> [#uses=1]25 br i1 %tmp, label %Body3, label %Brancher726 27Brancher7: ; preds = %Body6, %Body28 %tmp2 = icmp ult i32 undef, 10 ; <i1> [#uses=1]29 br i1 %tmp2, label %Body6, label %Exit30}31