1 ; RUN: opt < %s -simplifycfg -S | FileCheck %s 2 ; PR3354 3 ; Do not merge bb1 into the entry block, it might trap. 4 5 @G = extern_weak global i32 6 7 ; CHECK-LABEL: @test( 8 ; CHECK: br i1 %tmp25 9 ; CHECK: bb1: 10 ; CHECK: sdiv 11 12 define i32 @test(i32 %tmp21, i32 %tmp24) { 13 %tmp25 = icmp sle i32 %tmp21, %tmp24 14 br i1 %tmp25, label %bb2, label %bb1 15 16 bb1: ; preds = %bb 17 %tmp26 = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0 18 br i1 %tmp26, label %bb6, label %bb2 19 bb2: 20 ret i32 42 21 22 bb6: 23 ret i32 927 24 } 25 26 ; CHECK-LABEL: @test2( 27 ; CHECK: br i1 %tmp34 28 ; CHECK: bb5: 29 ; CHECK: sdiv 30 31 define i32 @test2(i32 %tmp21, i32 %tmp24, i1 %tmp34) { 32 br i1 %tmp34, label %bb5, label %bb6 33 34 bb5: ; preds = %bb4 35 br i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), label %bb6, label %bb7 36 bb6: 37 ret i32 42 38 bb7: 39 ret i32 927 40 } 41 42
