ILSpy

Commit Graph

Author	SHA1	Message	Date
Daniel Grunwald	060830dd64	Variable splitting: support cases where a ref is passed through a ref-returning method, and then used. From `IndexRangeTest.UseIndexForRef`: ``` stloc V_4(call GetSpan()) stloc S_19(ldloca V_4) stloc V_2(call get_Length(ldloc S_19)) stloc V_3(call GetOffset(addressof System.Index(call GetIndex(ldc.i4 0)), ldloc V_2)) call UseRef(call get_Item(ldloc S_19, ldloc V_3)) stloc V_4(call GetSpan()) stloc S_30(ldloca V_4) stloc V_2(binary.sub.i4(call get_Length(ldloc S_30), call GetInt(ldc.i4 0))) call UseRef(call get_Item(ldloc S_30, ldloc V_2)) ``` Due to `Span.get_Item` being a ref-return, it's possible that `ref V_4` is returned and passed into the `UseRef` method (this can't actually happen given Span's implementation, but it's a possible implementation of the get_Item type signature). But we still need to split `V_4` -- it's a compiler-generated variable and needs to be inlined. I think we can do this relatively simply by continuing to go up the ancestor instructions when we hit a ref-returning call. The recursive `DetermineAddressUse` call will check that there are no stores to `V_4` between the `get_Item` call and the point where the returned reference is used. Thus we still ensure that we don't split a variable while there is a live reference to it.	5 years ago
Siegfried Pammer	1e3e8fdac1	Allow ref-locals to be initialized from nested field addresses.	6 years ago
Daniel Grunwald	47ca51a769	Clarify the meaning of ILVariable.Index	6 years ago
Siegfried Pammer	1dcae5bff8	Extend HandleCall to NewObj instructions as well.	7 years ago
Siegfried Pammer	b701bed2ff	SplitVariables: analyze address usage in virtual calls as well. Treat them the same as call instructions.	7 years ago
Daniel Grunwald	7ee686cb67	Allow splitting a variable even if it has its address taken and stored in a ref-local. The currently implementation is somewhat minimal and only works in a very limited set of circumstances: * the ref local is single-assignment * the ref local is initialized directly with 'ldloca target; stloc ref_local', not a derived pointer (e.g. 'ldloca target; ldflda F; stloc ref_local'). * all uses of the ref_local are immediately consuming the address This improves variable splitting cases where the compiler re-uses a stack slot containing a reference, e.g. in some cases of '?.' on Nullable<T>.	7 years ago
Daniel Grunwald	d166101387	Allow splitting variables that have their address taken. This works if all addresses are immediately used in calls (as common with method calls on value-type, which take 'this' by-reference); as long as the call doesn't return the reference again. Closes #1136.	7 years ago
Daniel Grunwald	b149238777	Introduce IType.IsByRefLike.	7 years ago
Daniel Grunwald	6d8d37f8fc	Add ValueTypeCall foreach testcase.	8 years ago
Daniel Grunwald	df27dc9686	Fix NullReferenceException in SplitVariables.AddressUsedOnlyForReading	8 years ago
Daniel Grunwald	f5d907e0ce	[async] Allow splitting awaiter variables.	8 years ago
Daniel Grunwald	5c4a87eb32	Variable splitting for variables of type Nullable<T>.	8 years ago
Siegfried Pammer	074aa45acf	Add HasGeneratedName flag	8 years ago
Daniel Grunwald	2207ab40f7	Check the CancellationToken a bit more frequently.	8 years ago
Daniel Grunwald	bddda342a1	Improve yield-return-decompiler.	8 years ago
Siegfried Pammer	0970b95d5f	Rename ILVariable.Scope to Function and introduce BlockContainer CaptureScope	9 years ago
Siegfried Pammer	840ec04fde	Namespace adjustments for Syntax classes	9 years ago
Christoph Wille	1ce8349dd9	Adjust namespaces	9 years ago
Daniel Grunwald	275a147224	First attempt at pinned regions.	9 years ago
Daniel Grunwald	f3d108c469	Add SplitVariables transforms.	9 years ago
Daniel Grunwald	f5e66ff623	Extract reusable DataFlowVisitor from ReachingDefinitions; and add ILVariable.HasInitialValue.	9 years ago
Daniel Grunwald	b55775e2cc	Add reaching definitions analysis.	9 years ago
Daniel Grunwald	c171dbd520	Add class VariableScope.	9 years ago
Daniel Grunwald	9e59ea7395	Update System.Collections.Immutable	9 years ago
Siegfried Pammer	9f161006a5	fix #560 : properly recognize `lock` pattern of C# 2, and add `lock (this)` pattern	10 years ago
Daniel Grunwald	2c75fada90	Update to NRefactory 5.4	11 years ago

22 Commits (eea4b7701c3f2abab8c20306ae9b4eedcc323ac2)