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a5b314c27a
llvm-6502/test/Analysis/TypeBasedAliasAnalysis/tbaa-path.ll
Manman Ren a5b314c27a Struct-path aware TBAA: change the format of TBAAStructType node. 
We switch the order of offset and field type to make TBAAStructType node
(name, parent node, offset) similar to scalar TBAA node (name, parent node).
TypeIsImmutable is added to TBAAStructTag node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180654 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-27 00:26:11 +00:00

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; RUN: opt < %s -tbaa -basicaa -struct-path-tbaa -aa-eval -evaluate-tbaa -print-no-aliases -print-may-aliases -disable-output 2>&1 | FileCheck %s
; RUN: opt < %s -tbaa -basicaa -struct-path-tbaa -gvn -S | FileCheck %s --check-prefix=OPT
; Generated from clang/test/CodeGen/tbaa.cpp with "-O1 -struct-path-tbaa -disable-llvm-optzns".
%struct.StructA = type { i16, i32, i16, i32 }
%struct.StructB = type { i16, %struct.StructA, i32 }
%struct.StructS = type { i16, i32 }
%struct.StructS2 = type { i16, i32 }
%struct.StructC = type { i16, %struct.StructB, i32 }
%struct.StructD = type { i16, %struct.StructB, i32, i8 }
define i32 @_Z1gPjP7StructAy(i32* %s, %struct.StructA* %A, i64 %count) #0 {
entry:
; Access to i32* and &(A->f32).
; CHECK: Function
; CHECK: MayAlias: store i32 4, i32* %f32, align 4, !tbaa !8 <-> store i32 1, i32* %0, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; OPT: %[[RET:.*]] = load i32*
; OPT: ret i32 %[[RET]]
%s.addr = alloca i32*, align 8
%A.addr = alloca %struct.StructA*, align 8
%count.addr = alloca i64, align 8
store i32* %s, i32** %s.addr, align 8, !tbaa !0
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load i32** %s.addr, align 8, !tbaa !0
store i32 1, i32* %0, align 4, !tbaa !6
%1 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %1, i32 0, i32 1
store i32 4, i32* %f32, align 4, !tbaa !8
%2 = load i32** %s.addr, align 8, !tbaa !0
%3 = load i32* %2, align 4, !tbaa !6
ret i32 %3
}
define i32 @_Z2g2PjP7StructAy(i32* %s, %struct.StructA* %A, i64 %count) #0 {
entry:
; Access to i32* and &(A->f16).
; CHECK: Function
; CHECK: NoAlias: store i16 4, i16* %f16, align 2, !tbaa !8 <-> store i32 1, i32* %0, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i16 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%s.addr = alloca i32*, align 8
%A.addr = alloca %struct.StructA*, align 8
%count.addr = alloca i64, align 8
store i32* %s, i32** %s.addr, align 8, !tbaa !0
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load i32** %s.addr, align 8, !tbaa !0
store i32 1, i32* %0, align 4, !tbaa !6
%1 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f16 = getelementptr inbounds %struct.StructA* %1, i32 0, i32 0
store i16 4, i16* %f16, align 2, !tbaa !11
%2 = load i32** %s.addr, align 8, !tbaa !0
%3 = load i32* %2, align 4, !tbaa !6
ret i32 %3
}
define i32 @_Z2g3P7StructAP7StructBy(%struct.StructA* %A, %struct.StructB* %B, i64 %count) #0 {
entry:
; Access to &(A->f32) and &(B->a.f32).
; CHECK: Function
; CHECK: MayAlias: store i32 4, i32* %f321, align 4, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; OPT: %[[RET:.*]] = load i32*
; OPT: ret i32 %[[RET]]
%A.addr = alloca %struct.StructA*, align 8
%B.addr = alloca %struct.StructB*, align 8
%count.addr = alloca i64, align 8
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store %struct.StructB* %B, %struct.StructB** %B.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !8
%1 = load %struct.StructB** %B.addr, align 8, !tbaa !0
%a = getelementptr inbounds %struct.StructB* %1, i32 0, i32 1
%f321 = getelementptr inbounds %struct.StructA* %a, i32 0, i32 1
store i32 4, i32* %f321, align 4, !tbaa !12
%2 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f322 = getelementptr inbounds %struct.StructA* %2, i32 0, i32 1
%3 = load i32* %f322, align 4, !tbaa !8
ret i32 %3
}
define i32 @_Z2g4P7StructAP7StructBy(%struct.StructA* %A, %struct.StructB* %B, i64 %count) #0 {
entry:
; Access to &(A->f32) and &(B->a.f16).
; CHECK: Function
; CHECK: NoAlias: store i16 4, i16* %f16, align 2, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i16 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%A.addr = alloca %struct.StructA*, align 8
%B.addr = alloca %struct.StructB*, align 8
%count.addr = alloca i64, align 8
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store %struct.StructB* %B, %struct.StructB** %B.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !8
%1 = load %struct.StructB** %B.addr, align 8, !tbaa !0
%a = getelementptr inbounds %struct.StructB* %1, i32 0, i32 1
%f16 = getelementptr inbounds %struct.StructA* %a, i32 0, i32 0
store i16 4, i16* %f16, align 2, !tbaa !14
%2 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructA* %2, i32 0, i32 1
%3 = load i32* %f321, align 4, !tbaa !8
ret i32 %3
}
define i32 @_Z2g5P7StructAP7StructBy(%struct.StructA* %A, %struct.StructB* %B, i64 %count) #0 {
entry:
; Access to &(A->f32) and &(B->f32).
; CHECK: Function
; CHECK: NoAlias: store i32 4, i32* %f321, align 4, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%A.addr = alloca %struct.StructA*, align 8
%B.addr = alloca %struct.StructB*, align 8
%count.addr = alloca i64, align 8
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store %struct.StructB* %B, %struct.StructB** %B.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !8
%1 = load %struct.StructB** %B.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructB* %1, i32 0, i32 2
store i32 4, i32* %f321, align 4, !tbaa !15
%2 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f322 = getelementptr inbounds %struct.StructA* %2, i32 0, i32 1
%3 = load i32* %f322, align 4, !tbaa !8
ret i32 %3
}
define i32 @_Z2g6P7StructAP7StructBy(%struct.StructA* %A, %struct.StructB* %B, i64 %count) #0 {
entry:
; Access to &(A->f32) and &(B->a.f32_2).
; CHECK: Function
; CHECK: NoAlias: store i32 4, i32* %f32_2, align 4, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%A.addr = alloca %struct.StructA*, align 8
%B.addr = alloca %struct.StructB*, align 8
%count.addr = alloca i64, align 8
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store %struct.StructB* %B, %struct.StructB** %B.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !8
%1 = load %struct.StructB** %B.addr, align 8, !tbaa !0
%a = getelementptr inbounds %struct.StructB* %1, i32 0, i32 1
%f32_2 = getelementptr inbounds %struct.StructA* %a, i32 0, i32 3
store i32 4, i32* %f32_2, align 4, !tbaa !16
%2 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructA* %2, i32 0, i32 1
%3 = load i32* %f321, align 4, !tbaa !8
ret i32 %3
}
define i32 @_Z2g7P7StructAP7StructSy(%struct.StructA* %A, %struct.StructS* %S, i64 %count) #0 {
entry:
; Access to &(A->f32) and &(S->f32).
; CHECK: Function
; CHECK: NoAlias: store i32 4, i32* %f321, align 4, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%A.addr = alloca %struct.StructA*, align 8
%S.addr = alloca %struct.StructS*, align 8
%count.addr = alloca i64, align 8
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store %struct.StructS* %S, %struct.StructS** %S.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !8
%1 = load %struct.StructS** %S.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructS* %1, i32 0, i32 1
store i32 4, i32* %f321, align 4, !tbaa !17
%2 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f322 = getelementptr inbounds %struct.StructA* %2, i32 0, i32 1
%3 = load i32* %f322, align 4, !tbaa !8
ret i32 %3
}
define i32 @_Z2g8P7StructAP7StructSy(%struct.StructA* %A, %struct.StructS* %S, i64 %count) #0 {
entry:
; Access to &(A->f32) and &(S->f16).
; CHECK: Function
; CHECK: NoAlias: store i16 4, i16* %f16, align 2, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i16 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%A.addr = alloca %struct.StructA*, align 8
%S.addr = alloca %struct.StructS*, align 8
%count.addr = alloca i64, align 8
store %struct.StructA* %A, %struct.StructA** %A.addr, align 8, !tbaa !0
store %struct.StructS* %S, %struct.StructS** %S.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructA* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !8
%1 = load %struct.StructS** %S.addr, align 8, !tbaa !0
%f16 = getelementptr inbounds %struct.StructS* %1, i32 0, i32 0
store i16 4, i16* %f16, align 2, !tbaa !19
%2 = load %struct.StructA** %A.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructA* %2, i32 0, i32 1
%3 = load i32* %f321, align 4, !tbaa !8
ret i32 %3
}
define i32 @_Z2g9P7StructSP8StructS2y(%struct.StructS* %S, %struct.StructS2* %S2, i64 %count) #0 {
entry:
; Access to &(S->f32) and &(S2->f32).
; CHECK: Function
; CHECK: NoAlias: store i32 4, i32* %f321, align 4, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%S.addr = alloca %struct.StructS*, align 8
%S2.addr = alloca %struct.StructS2*, align 8
%count.addr = alloca i64, align 8
store %struct.StructS* %S, %struct.StructS** %S.addr, align 8, !tbaa !0
store %struct.StructS2* %S2, %struct.StructS2** %S2.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructS** %S.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructS* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !17
%1 = load %struct.StructS2** %S2.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructS2* %1, i32 0, i32 1
store i32 4, i32* %f321, align 4, !tbaa !20
%2 = load %struct.StructS** %S.addr, align 8, !tbaa !0
%f322 = getelementptr inbounds %struct.StructS* %2, i32 0, i32 1
%3 = load i32* %f322, align 4, !tbaa !17
ret i32 %3
}
define i32 @_Z3g10P7StructSP8StructS2y(%struct.StructS* %S, %struct.StructS2* %S2, i64 %count) #0 {
entry:
; Access to &(S->f32) and &(S2->f16).
; CHECK: Function
; CHECK: NoAlias: store i16 4, i16* %f16, align 2, !tbaa !10 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i16 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%S.addr = alloca %struct.StructS*, align 8
%S2.addr = alloca %struct.StructS2*, align 8
%count.addr = alloca i64, align 8
store %struct.StructS* %S, %struct.StructS** %S.addr, align 8, !tbaa !0
store %struct.StructS2* %S2, %struct.StructS2** %S2.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructS** %S.addr, align 8, !tbaa !0
%f32 = getelementptr inbounds %struct.StructS* %0, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !17
%1 = load %struct.StructS2** %S2.addr, align 8, !tbaa !0
%f16 = getelementptr inbounds %struct.StructS2* %1, i32 0, i32 0
store i16 4, i16* %f16, align 2, !tbaa !22
%2 = load %struct.StructS** %S.addr, align 8, !tbaa !0
%f321 = getelementptr inbounds %struct.StructS* %2, i32 0, i32 1
%3 = load i32* %f321, align 4, !tbaa !17
ret i32 %3
}
define i32 @_Z3g11P7StructCP7StructDy(%struct.StructC* %C, %struct.StructD* %D, i64 %count) #0 {
entry:
; Access to &(C->b.a.f32) and &(D->b.a.f32).
; CHECK: Function
; CHECK: NoAlias: store i32 4, i32* %f323, align 4, !tbaa !12 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; Remove a load and propogate the value from store.
; OPT: ret i32 1
%C.addr = alloca %struct.StructC*, align 8
%D.addr = alloca %struct.StructD*, align 8
%count.addr = alloca i64, align 8
store %struct.StructC* %C, %struct.StructC** %C.addr, align 8, !tbaa !0
store %struct.StructD* %D, %struct.StructD** %D.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructC** %C.addr, align 8, !tbaa !0
%b = getelementptr inbounds %struct.StructC* %0, i32 0, i32 1
%a = getelementptr inbounds %struct.StructB* %b, i32 0, i32 1
%f32 = getelementptr inbounds %struct.StructA* %a, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !23
%1 = load %struct.StructD** %D.addr, align 8, !tbaa !0
%b1 = getelementptr inbounds %struct.StructD* %1, i32 0, i32 1
%a2 = getelementptr inbounds %struct.StructB* %b1, i32 0, i32 1
%f323 = getelementptr inbounds %struct.StructA* %a2, i32 0, i32 1
store i32 4, i32* %f323, align 4, !tbaa !25
%2 = load %struct.StructC** %C.addr, align 8, !tbaa !0
%b4 = getelementptr inbounds %struct.StructC* %2, i32 0, i32 1
%a5 = getelementptr inbounds %struct.StructB* %b4, i32 0, i32 1
%f326 = getelementptr inbounds %struct.StructA* %a5, i32 0, i32 1
%3 = load i32* %f326, align 4, !tbaa !23
ret i32 %3
}
define i32 @_Z3g12P7StructCP7StructDy(%struct.StructC* %C, %struct.StructD* %D, i64 %count) #0 {
entry:
; Access to &(b1->a.f32) and &(b2->a.f32).
; CHECK: Function
; CHECK: MayAlias: store i32 4, i32* %f325, align 4, !tbaa !6 <-> store i32 1, i32* %f32, align 4, !tbaa !6
; OPT: define
; OPT: store i32 1
; OPT: store i32 4
; OPT: %[[RET:.*]] = load i32*
; OPT: ret i32 %[[RET]]
%C.addr = alloca %struct.StructC*, align 8
%D.addr = alloca %struct.StructD*, align 8
%count.addr = alloca i64, align 8
%b1 = alloca %struct.StructB*, align 8
%b2 = alloca %struct.StructB*, align 8
store %struct.StructC* %C, %struct.StructC** %C.addr, align 8, !tbaa !0
store %struct.StructD* %D, %struct.StructD** %D.addr, align 8, !tbaa !0
store i64 %count, i64* %count.addr, align 8, !tbaa !4
%0 = load %struct.StructC** %C.addr, align 8, !tbaa !0
%b = getelementptr inbounds %struct.StructC* %0, i32 0, i32 1
store %struct.StructB* %b, %struct.StructB** %b1, align 8, !tbaa !0
%1 = load %struct.StructD** %D.addr, align 8, !tbaa !0
%b3 = getelementptr inbounds %struct.StructD* %1, i32 0, i32 1
store %struct.StructB* %b3, %struct.StructB** %b2, align 8, !tbaa !0
%2 = load %struct.StructB** %b1, align 8, !tbaa !0
%a = getelementptr inbounds %struct.StructB* %2, i32 0, i32 1
%f32 = getelementptr inbounds %struct.StructA* %a, i32 0, i32 1
store i32 1, i32* %f32, align 4, !tbaa !12
%3 = load %struct.StructB** %b2, align 8, !tbaa !0
%a4 = getelementptr inbounds %struct.StructB* %3, i32 0, i32 1
%f325 = getelementptr inbounds %struct.StructA* %a4, i32 0, i32 1
store i32 4, i32* %f325, align 4, !tbaa !12
%4 = load %struct.StructB** %b1, align 8, !tbaa !0
%a6 = getelementptr inbounds %struct.StructB* %4, i32 0, i32 1
%f327 = getelementptr inbounds %struct.StructA* %a6, i32 0, i32 1
%5 = load i32* %f327, align 4, !tbaa !12
ret i32 %5
}
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
!0 = metadata !{metadata !1, metadata !1, i64 0}
!1 = metadata !{metadata !"any pointer", metadata !2}
!2 = metadata !{metadata !"omnipotent char", metadata !3}
!3 = metadata !{metadata !"Simple C/C++ TBAA"}
!4 = metadata !{metadata !5, metadata !5, i64 0}
!5 = metadata !{metadata !"long long", metadata !2}
!6 = metadata !{metadata !7, metadata !7, i64 0}
!7 = metadata !{metadata !"int", metadata !2}
!8 = metadata !{metadata !9, metadata !7, i64 4}
!9 = metadata !{metadata !"_ZTS7StructA", metadata !10, i64 0, metadata !7, i64 4, metadata !10, i64 8, metadata !7, i64 12}
!10 = metadata !{metadata !"short", metadata !2}
!11 = metadata !{metadata !9, metadata !10, i64 0}
!12 = metadata !{metadata !13, metadata !7, i64 8}
!13 = metadata !{metadata !"_ZTS7StructB", metadata !10, i64 0, metadata !9, i64 4, metadata !7, i64 20}
!14 = metadata !{metadata !13, metadata !10, i64 4}
!15 = metadata !{metadata !13, metadata !7, i64 20}
!16 = metadata !{metadata !13, metadata !7, i64 16}
!17 = metadata !{metadata !18, metadata !7, i64 4}
!18 = metadata !{metadata !"_ZTS7StructS", metadata !10, i64 0, metadata !7, i64 4}
!19 = metadata !{metadata !18, metadata !10, i64 0}
!20 = metadata !{metadata !21, metadata !7, i64 4}
!21 = metadata !{metadata !"_ZTS8StructS2", metadata !10, i64 0, metadata !7, i64 4}
!22 = metadata !{metadata !21, metadata !10, i64 0}
!23 = metadata !{metadata !24, metadata !7, i64 12}
!24 = metadata !{metadata !"_ZTS7StructC", metadata !10, i64 0, metadata !13, i64 4, metadata !7, i64 28}
!25 = metadata !{metadata !26, metadata !7, i64 12}
!26 = metadata !{metadata !"_ZTS7StructD", metadata !10, i64 0, metadata !13, i64 4, metadata !7, i64 28, metadata !2, i64 32}
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