update-edge-weight.ll
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; RUN: opt -S -jump-threading %s | FileCheck %s
; RUN: opt -S -passes=jump-threading %s | FileCheck %s
; Test if edge weights are properly updated after jump threading.
; CHECK: !2 = !{!"branch_weights", i32 1629125526, i32 518358122}
define void @foo(i32 %n) !prof !0 {
entry:
%cmp = icmp sgt i32 %n, 10
br i1 %cmp, label %if.then.1, label %if.else.1, !prof !1
if.then.1:
tail call void @a()
br label %if.cond
if.else.1:
tail call void @b()
br label %if.cond
if.cond:
%cmp1 = icmp sgt i32 %n, 5
br i1 %cmp1, label %if.then.2, label %if.else.2, !prof !2
if.then.2:
tail call void @c()
br label %if.end
if.else.2:
tail call void @d()
br label %if.end
if.end:
ret void
}
declare void @a()
declare void @b()
declare void @c()
declare void @d()
!0 = !{!"function_entry_count", i64 1}
!1 = !{!"branch_weights", i32 10, i32 5}
!2 = !{!"branch_weights", i32 10, i32 1}