1; RUN: opt < %s -simplifycfg -S | grep {br i1 } | count 4 2; PR3354 3; Do not merge bb1 into the entry block, it might trap. 4 5@G = extern_weak global i32 6 7define i32 @test(i32 %tmp21, i32 %tmp24) { 8 %tmp25 = icmp sle i32 %tmp21, %tmp24 9 br i1 %tmp25, label %bb2, label %bb1 10 11bb1: ; preds = %bb 12 %tmp26 = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0 13 br i1 %tmp26, label %bb6, label %bb2 14bb2: 15 ret i32 42 16 17bb6: 18 ret i32 927 19} 20 21define i32 @test2(i32 %tmp21, i32 %tmp24, i1 %tmp34) { 22 br i1 %tmp34, label %bb5, label %bb6 23 24bb5: ; preds = %bb4 25 br i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), label %bb6, label %bb7 26bb6: 27 ret i32 42 28bb7: 29 ret i32 927 30} 31 32