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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=simplifycfg < %s -S | FileCheck %s3 4; The dead code would cause a select that had itself5; as an operand to be analyzed. This would then cause6; infinite recursion and eventual crash.7 8define void @PR36045(i1 %t, ptr %b) {9; CHECK-LABEL: @PR36045(10; CHECK-NEXT: entry:11; CHECK-NEXT: [[TMP0:%.*]] = xor i1 [[T:%.*]], true12; CHECK-NEXT: call void @llvm.assume(i1 [[TMP0]])13; CHECK-NEXT: ret void14;15entry:16 br i1 %t, label %if, label %end17 18if:19 br i1 %t, label %unreach, label %pre20 21unreach:22 unreachable23 24pre:25 %p = phi i32 [ 70, %if ], [ %sel, %for ]26 br label %for27 28for:29 %cmp = icmp sgt i32 %p, 830 %add = add i32 %p, 231 %sel = select i1 %cmp, i32 %p, i32 %add32 %cmp21 = icmp ult i32 %sel, 2133 br i1 %cmp21, label %pre, label %for.end34 35for.end:36 br i1 %t, label %unreach2, label %then1237 38then12:39 store i32 0, ptr %b40 br label %unreach241 42unreach2:43 %spec = phi i32 [ %sel, %for.end ], [ 42, %then12 ]44 unreachable45 46end:47 ret void48}49 50