; RUN: opt < %s -simplifycfg -S | FileCheck %s ; PR3354 ; Do not merge bb1 into the entry block, it might trap. @G = extern_weak global i32 ; CHECK-LABEL: @test( ; CHECK: br i1 %tmp25 ; CHECK: bb1: ; CHECK: sdiv define i32 @test(i32 %tmp21, i32 %tmp24) { %tmp25 = icmp sle i32 %tmp21, %tmp24 br i1 %tmp25, label %bb2, label %bb1 bb1: ; preds = %bb %tmp26 = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0 br i1 %tmp26, label %bb6, label %bb2 bb2: ret i32 42 bb6: ret i32 927 } ; CHECK-LABEL: @test2( ; CHECK: br i1 %tmp34 ; CHECK: bb5: ; CHECK: sdiv define i32 @test2(i32 %tmp21, i32 %tmp24, i1 %tmp34) { br i1 %tmp34, label %bb5, label %bb6 bb5: ; preds = %bb4 br i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), label %bb6, label %bb7 bb6: ret i32 42 bb7: ret i32 927 }