1 ; RUN: llc < %s 2 ; PR6777 3 4 ; MachineSink shouldn't try to sink code in unreachable blocks, as it's 5 ; not worthwhile, and there are corner cases which it doesn't handle. 6 7 target 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" 8 target triple = "x86_64-unknown-linux-gnu" 9 10 define double @fn1(i8* %arg, i64 %arg1) { 11 Entry: 12 br i1 undef, label %Body, label %Exit 13 14 Exit: ; preds = %Brancher7, %Entry 15 ret double undef 16 17 Body: ; preds = %Entry 18 br i1 false, label %Brancher7, label %Body3 19 20 Body3: ; preds = %Body6, %Body3, %Body 21 br label %Body3 22 23 Body6: ; preds = %Brancher7 24 %tmp = fcmp oeq double 0xC04FBB2E40000000, undef ; <i1> [#uses=1] 25 br i1 %tmp, label %Body3, label %Brancher7 26 27 Brancher7: ; preds = %Body6, %Body 28 %tmp2 = icmp ult i32 undef, 10 ; <i1> [#uses=1] 29 br i1 %tmp2, label %Body6, label %Exit 30 } 31
