1; RUN: llc < %s -mtriple=x86_64-apple-darwin -print-machineinstrs=expand-isel-pseudos -o /dev/null 2>&1 | FileCheck %s
2
3;; Make sure a transformation in SelectionDAGBuilder that converts "or + br" to
4;; two branches correctly updates the branch probability.
5
6@max_regno = common global i32 0, align 4
7
8define void @test(i32* %old, i32 %final) {
9for.cond:
10  br label %for.cond2
11
12for.cond2:                                        ; preds = %for.inc, %for.cond
13  %i.1 = phi i32 [ %inc19, %for.inc ], [ 0, %for.cond ]
14  %bit.0 = phi i32 [ %shl, %for.inc ], [ 1, %for.cond ]
15  %tobool = icmp eq i32 %bit.0, 0
16  %v3 = load i32, i32* @max_regno, align 4
17  %cmp4 = icmp eq i32 %i.1, %v3
18  %or.cond = or i1 %tobool, %cmp4
19  br i1 %or.cond, label %for.inc20, label %for.inc, !prof !0
20; CHECK: BB#1: derived from LLVM BB %for.cond2
21; CHECK: Successors according to CFG: BB#3({{[0-9a-fx/= ]+}}1.53%) BB#4({{[0-9a-fx/= ]+}}98.47%)
22; CHECK: BB#4: derived from LLVM BB %for.cond2
23; CHECK: Successors according to CFG: BB#3({{[0-9a-fx/= ]+}}1.55%) BB#2({{[0-9a-fx/= ]+}}98.45%)
24
25for.inc:                                          ; preds = %for.cond2
26  %shl = shl i32 %bit.0, 1
27  %inc19 = add nsw i32 %i.1, 1
28  br label %for.cond2
29
30for.inc20:                                        ; preds = %for.cond2
31  ret void
32}
33
34!0 = !{!"branch_weights", i32 112017436, i32 -735157296}
35