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; Test that the lazy value analysis gets invalidated when its dependencies go
; away. Sadly, you can neither print nor verify LVI so we just have to require
; it and check that the pass manager does the right thing.
;
; Check basic invalidation.
; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
; RUN: -passes='require<lazy-value-info>,invalidate<lazy-value-info>,require<lazy-value-info>' \
; RUN: | FileCheck %s --check-prefix=CHECK-INVALIDATE
; CHECK-INVALIDATE: Running pass: RequireAnalysisPass
; CHECK-INVALIDATE: Running analysis: LazyValueAnalysis
; CHECK-INVALIDATE: Running pass: InvalidateAnalysisPass
; CHECK-INVALIDATE: Invalidating analysis: LazyValueAnalysis
; CHECK-INVALIDATE: Running pass: RequireAnalysisPass
; CHECK-INVALIDATE: Running analysis: LazyValueAnalysis
target triple = "x86_64-unknown-linux-gnu"
@.str = private unnamed_addr constant [8 x i8] c"a = %l\0A\00", align 1
declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
declare void @hoo(ptr)
declare i32 @printf(ptr nocapture readonly, ...)
declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
define void @goo(i32 %N, ptr %b) {
entry:
%a.i = alloca i64, align 8
%tmp = bitcast ptr %a.i to ptr
%c = getelementptr inbounds i64, ptr %b, i64 0
br label %for.cond
for.cond: ; preds = %for.body, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
%cmp = icmp slt i32 %i.0, %N
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
call void @llvm.lifetime.start.p0(i64 8, ptr %tmp)
call void @hoo(ptr %a.i)
call void @hoo(ptr %c)
%tmp1 = load volatile i64, ptr %a.i, align 8
%call.i = call i32 (ptr, ...) @printf(ptr @.str, i64 %tmp1)
call void @llvm.lifetime.end.p0(i64 8, ptr %tmp)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
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