1 ; RUN: opt -S -passes=correlated-propagation -debug-only=lazy-value-info <%s 2>&1 | FileCheck %s
4 ; Shortcut in Correlated Value Propagation ensures not to take Lazy Value Info
5 ; analysis for %a.i and %tmp because %a.i is defined by alloca and %tmp is
6 ; defined by alloca + bitcast. We know the ret value of alloca is nonnull.
8 ; CHECK-NOT: LVI Getting edge value %a.i = alloca i64, align 8 at 'for.body'
9 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
10 target triple = "x86_64-unknown-linux-gnu"
12 @.str = private unnamed_addr constant [8 x i8] c"a = %l\0A\00", align 1
14 ; Function Attrs: argmemonly nounwind
15 declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
17 declare void @hoo(ptr)
19 declare i32 @printf(ptr nocapture readonly, ...)
21 ; Function Attrs: argmemonly nounwind
22 declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
24 define void @goo(i32 %N, ptr %b) {
26 %a.i = alloca i64, align 8
29 for.cond: ; preds = %for.body, %entry
30 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
31 %cmp = icmp slt i32 %i.0, %N
32 br i1 %cmp, label %for.body, label %for.end
34 for.body: ; preds = %for.cond
35 call void @llvm.lifetime.start.p0(i64 8, ptr %a.i)
36 call void @hoo(ptr %a.i)
37 call void @hoo(ptr %b)
38 %tmp1 = load volatile i64, ptr %a.i, align 8
39 %call.i = call i32 (ptr, ...) @printf(ptr @.str, i64 %tmp1)
40 call void @llvm.lifetime.end.p0(i64 8, ptr %a.i)
41 %inc = add nsw i32 %i.0, 1
44 for.end: ; preds = %for.cond