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llvm-project/llvm/test/Analysis/MemoryDependenceAnalysis/invalidation.ll

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[PM] Teach MemDep to invalidate its result object when its cached analysis handles become invalid. Add a test case for its invalidation logic. llvm-svn: 290620
2016-12-28 03:33:04 +08:00
; Test that memdep gets invalidated when the analyses it depends on are
; invalidated.
;
[AliasAnalysis/NewPassManager] Invalidate AAManager less often. Summary: This is a redo of D60914. The objective is to not invalidate AAManager, which is stateless, unless there is an explicit invalidate in one of the AAResults. To achieve this, this patch adds an API to PAC, to check precisely this: is this analysis not invalidated explicitly == is this analysis not abandoned == is this analysis stateless, so preserved without explicitly being marked as preserved by everyone Reviewers: chandlerc Subscribers: mehdi_amini, jlebar, george.burgess.iv, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61284 llvm-svn: 359622
2019-05-01 06:15:47 +08:00
; Check AA. AA is stateless, there's nothing to invalidate.
[PM] Teach MemDep to invalidate its result object when its cached analysis handles become invalid. Add a test case for its invalidation logic. llvm-svn: 290620
2016-12-28 03:33:04 +08:00
; RUN: opt -disable-output -debug-pass-manager -aa-pipeline='basic-aa' %s 2>&1 \
; RUN: -passes='require<memdep>,invalidate<aa>,gvn' \
; RUN: | FileCheck %s --check-prefix=CHECK-AA-INVALIDATE
; CHECK-AA-INVALIDATE: Running pass: RequireAnalysisPass
; CHECK-AA-INVALIDATE: Running analysis: MemoryDependenceAnalysis
; CHECK-AA-INVALIDATE: Running pass: InvalidateAnalysisPass
[AliasAnalysis/NewPassManager] Invalidate AAManager less often. Summary: This is a redo of D60914. The objective is to not invalidate AAManager, which is stateless, unless there is an explicit invalidate in one of the AAResults. To achieve this, this patch adds an API to PAC, to check precisely this: is this analysis not invalidated explicitly == is this analysis not abandoned == is this analysis stateless, so preserved without explicitly being marked as preserved by everyone Reviewers: chandlerc Subscribers: mehdi_amini, jlebar, george.burgess.iv, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61284 llvm-svn: 359622
2019-05-01 06:15:47 +08:00
; CHECK-NOT-AA-INVALIDATE: Invalidating analysis: MemoryDependenceAnalysis
[PM] Teach MemDep to invalidate its result object when its cached analysis handles become invalid. Add a test case for its invalidation logic. llvm-svn: 290620
2016-12-28 03:33:04 +08:00
; CHECK-AA-INVALIDATE: Running pass: GVN
[AliasAnalysis/NewPassManager] Invalidate AAManager less often. Summary: This is a redo of D60914. The objective is to not invalidate AAManager, which is stateless, unless there is an explicit invalidate in one of the AAResults. To achieve this, this patch adds an API to PAC, to check precisely this: is this analysis not invalidated explicitly == is this analysis not abandoned == is this analysis stateless, so preserved without explicitly being marked as preserved by everyone Reviewers: chandlerc Subscribers: mehdi_amini, jlebar, george.burgess.iv, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D61284 llvm-svn: 359622
2019-05-01 06:15:47 +08:00
; CHECK-NOT-AA-INVALIDATE: Running analysis: MemoryDependenceAnalysis
[PM] Teach MemDep to invalidate its result object when its cached analysis handles become invalid. Add a test case for its invalidation logic. llvm-svn: 290620
2016-12-28 03:33:04 +08:00
;
; Check domtree specifically.
; RUN: opt -disable-output -debug-pass-manager %s 2>&1 \
; RUN: -passes='require<memdep>,invalidate<domtree>,gvn' \
; RUN: | FileCheck %s --check-prefix=CHECK-DT-INVALIDATE
; CHECK-DT-INVALIDATE: Running pass: RequireAnalysisPass
; CHECK-DT-INVALIDATE: Running analysis: MemoryDependenceAnalysis
; CHECK-DT-INVALIDATE: Running pass: InvalidateAnalysisPass
; CHECK-DT-INVALIDATE: Invalidating analysis: DominatorTreeAnalysis
; CHECK-DT-INVALIDATE: Invalidating analysis: MemoryDependenceAnalysis
; CHECK-DT-INVALIDATE: Running pass: GVN
; CHECK-DT-INVALIDATE: Running analysis: MemoryDependenceAnalysis
;
define void @test_use_domtree(i32* nocapture %bufUInt, i32* nocapture %pattern) nounwind {
entry:
br label %for.body
for.exit: ; preds = %for.body
ret void
for.body: ; preds = %for.body, %entry
%i.01 = phi i32 [ 0, %entry ], [ %tmp8.7, %for.body ]
%arrayidx = getelementptr i32, i32* %bufUInt, i32 %i.01
%arrayidx5 = getelementptr i32, i32* %pattern, i32 %i.01
%tmp6 = load i32, i32* %arrayidx5, align 4
store i32 %tmp6, i32* %arrayidx, align 4
%tmp8.7 = add i32 %i.01, 8
%cmp.7 = icmp ult i32 %tmp8.7, 1024
br i1 %cmp.7, label %for.body, label %for.exit
}
%t = type { i32 }
declare void @foo(i8*)
define void @test_use_aa(%t* noalias %stuff ) {
entry:
%p = getelementptr inbounds %t, %t* %stuff, i32 0, i32 0
%before = load i32, i32* %p
call void @foo(i8* null)
%after = load i32, i32* %p
%sum = add i32 %before, %after
store i32 %sum, i32* %p
ret void
}