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[AST] Visit memtransfer arguments in order

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The only point to this change is the test diffs.  When I remove this code entirely (in favor of the recently added generic handling), I don't want there to be any confusion due to spurious test diffs.

As an aside, the fact out tests are AST construction order dependent is not great.  I thought about fixing that, but the reasonable schemes I might want (e.g. sort by name) need the test diffs anyways.

Philip

llvm-svn: 341841
This commit is contained in:
Philip Reames 2018-09-10 16:00:27 +00:00
parent 61013536ec
commit 7578ed61eb
2 changed files with 9 additions and 9 deletions
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2
lib/Analysis/AliasSetTracker.cpp
View File

@ -407,8 +407,8 @@ void AliasSetTracker::add(AnyMemSetInst *MSI) {
}
void AliasSetTracker::add(AnyMemTransferInst *MTI) {
addPointer(MemoryLocation::getForSource(MTI), AliasSet::RefAccess);
addPointer(MemoryLocation::getForDest(MTI), AliasSet::ModAccess);
addPointer(MemoryLocation::getForSource(MTI), AliasSet::RefAccess);
}
void AliasSetTracker::addUnknown(Instruction *Inst) {

16
test/Analysis/AliasSet/memtransfer.ll
View File

@ -6,8 +6,8 @@
; CHECK: Alias sets for function 'test_known_size':
; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Ref Pointers: (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Ref Pointers: (i8* %s, 1)
define void @test_known_size(i8* noalias %s, i8* noalias %d) {
entry:
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 1, i1 false)
@ -16,8 +16,8 @@ entry:
; CHECK: Alias sets for function 'test_unknown_size':
; CHECK: Alias Set Tracker: 2 alias sets for 2 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Ref Pointers: (i8* %s, unknown)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %d, unknown)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Ref Pointers: (i8* %s, unknown)
define void @test_unknown_size(i8* noalias %s, i8* noalias %d, i64 %len) {
entry:
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 %len, i1 false)
@ -29,7 +29,7 @@ entry:
; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
; CHECK-NOT: 1 Unknown instructions
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %d, 1), (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
define void @test1(i8* %s, i8* %d) {
entry:
@ -45,7 +45,7 @@ entry:
; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
; CHECK-NOT: 1 Unknown instructions
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %d, 1), (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
define void @test1_atomic(i8* %s, i8* %d) {
entry:
@ -61,7 +61,7 @@ entry:
; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
; CHECK-NOT: 1 Unknown instructions
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %d, 1), (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
define void @test2(i8* %s, i8* %d) {
entry:
@ -77,7 +77,7 @@ entry:
; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
; CHECK-NOT: 1 Unknown instructions
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %d, 1), (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
define void @test3(i8* %s, i8* %d) {
entry:
@ -93,7 +93,7 @@ entry:
; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
; CHECK-NOT: 1 Unknown instructions
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %d, 1), (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
define void @test3_atomic(i8* %s, i8* %d) {
entry:
@ -109,7 +109,7 @@ entry:
; CHECK: Alias Set Tracker: 3 alias sets for 4 pointer values.
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %a, 1)
; CHECK-NOT: 1 Unknown instructions
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %s, 1), (i8* %d, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 2] may alias, Mod/Ref Pointers: (i8* %d, 1), (i8* %s, 1)
; CHECK: AliasSet[0x{{[0-9a-f]+}}, 1] must alias, Mod Pointers: (i8* %b, 1)
define void @test4(i8* %s, i8* %d) {
entry: