1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
; 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
;
; Check DomTree specifically.
; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
; RUN: -passes='require<domtree>,require<lazy-value-info>,invalidate<domtree>,require<lazy-value-info>' \
; RUN: | FileCheck %s --check-prefix=CHECK-DT-INVALIDATE
; CHECK-DT-INVALIDATE: Running pass: RequireAnalysisPass
; CHECK-DT-INVALIDATE: Running analysis: LazyValueAnalysis
; CHECK-DT-INVALIDATE: Running pass: InvalidateAnalysisPass
; CHECK-DT-INVALIDATE: Invalidating analysis: DominatorTreeAnalysis
; CHECK-DT-INVALIDATE: Invalidating analysis: LazyValueAnalysis
; CHECK-AC-INVALIDATE: Running pass: RequireAnalysisPass
; CHECK-DT-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.p0i8(i64, i8* nocapture)
declare void @hoo(i64*)
declare i32 @printf(i8* nocapture readonly, ...)
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
define void @goo(i32 %N, i64* %b) {
entry:
%a.i = alloca i64, align 8
%tmp = bitcast i64* %a.i to i8*
%c = getelementptr inbounds i64, i64* %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.p0i8(i64 8, i8* %tmp)
call void @hoo(i64* %a.i)
call void @hoo(i64* %c)
%tmp1 = load volatile i64, i64* %a.i, align 8
%call.i = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i64 %tmp1)
call void @llvm.lifetime.end.p0i8(i64 8, i8* %tmp)
%inc = add nsw i32 %i.0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
|
