1 ; RUN: opt -S -loop-idiom < %s 2 ; Don't crash 3 ; PR13892 4 5 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-n8:16:32:64-S128" 6 target triple = "x86_64-unknown-linux-gnu" 7 8 define void @test(i32* %currMB) nounwind uwtable { 9 entry: 10 br i1 undef, label %start.exit, label %if.then.i 11 12 if.then.i: ; preds = %entry 13 unreachable 14 15 start.exit: ; preds = %entry 16 indirectbr i8* undef, [label %0, label %for.bodyprime] 17 18 ; <label>:0 ; preds = %start.exit 19 unreachable 20 21 for.bodyprime: ; preds = %for.bodyprime, %start.exit 22 %i.057375 = phi i32 [ 0, %start.exit ], [ %1, %for.bodyprime ] 23 %arrayidx8prime = getelementptr inbounds i32, i32* %currMB, i32 %i.057375 24 store i32 0, i32* %arrayidx8prime, align 4 25 %1 = add i32 %i.057375, 1 26 %cmp5prime = icmp slt i32 %1, 4 27 br i1 %cmp5prime, label %for.bodyprime, label %for.endprime 28 29 for.endprime: ; preds = %for.bodyprime 30 br label %for.body23prime 31 32 for.body23prime: ; preds = %for.body23prime, %for.endprime 33 br label %for.body23prime 34 } 35
