| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @fptr = internal unnamed_addr global i32 (i32)* @f2, align 8 |
| |
| define dso_local i32 @foo(i32 %x) local_unnamed_addr { |
| entry: |
| %0 = load i32 (i32)*, i32 (i32)** @fptr, align 8 |
| %call = tail call i32 %0(i32 %x), !callees !0 |
| ret i32 %call |
| } |
| |
| define internal i32 @f2(i32 %x) { |
| entry: |
| %tobool = icmp eq i32 %x, 0 |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| store i32 (i32)* @f1, i32 (i32)** @fptr, align 8 |
| %sub.i = add nsw i32 %x, -1 |
| br label %if.end |
| |
| if.end: ; preds = %entry, %if.then |
| %phi.call = phi i32 [ %sub.i, %if.then ], [ -1, %entry ] |
| ret i32 %phi.call |
| } |
| |
| define internal i32 @f1(i32 %x) { |
| entry: |
| %sub = add nsw i32 %x, -1 |
| ret i32 %sub |
| } |
| |
| !0 = !{i32 (i32)* @f1, i32 (i32)* @f2} |
