1 ; RUN: opt -S -jump-threading %s | FileCheck %s 2 3 ; Test if edge weights are properly updated after jump threading. 4 5 ; CHECK: !2 = !{!"branch_weights", i32 1629125526, i32 518358122} 6 7 define void @foo(i32 %n) !prof !0 { 8 entry: 9 %cmp = icmp sgt i32 %n, 10 10 br i1 %cmp, label %if.then.1, label %if.else.1, !prof !1 11 12 if.then.1: 13 tail call void @a() 14 br label %if.cond 15 16 if.else.1: 17 tail call void @b() 18 br label %if.cond 19 20 if.cond: 21 %cmp1 = icmp sgt i32 %n, 5 22 br i1 %cmp1, label %if.then.2, label %if.else.2, !prof !2 23 24 if.then.2: 25 tail call void @c() 26 br label %if.end 27 28 if.else.2: 29 tail call void @d() 30 br label %if.end 31 32 if.end: 33 ret void 34 } 35 36 declare void @a() 37 declare void @b() 38 declare void @c() 39 declare void @d() 40 41 !0 = !{!"function_entry_count", i64 1} 42 !1 = !{!"branch_weights", i32 10, i32 5} 43 !2 = !{!"branch_weights", i32 10, i32 1} 44
