Mirrors/Ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Generalize tail continues (#1298)

Browse source 
* Generalize tail continues

* Fix DecodeBasicBlock

`Next` and `Branch` would be null, which is not the state expected by
the branch instructions. They end up branching or falling into a block
which is never populated by the `Translator`. This causes an assert to
be fired when building the CFG.

* Clean up Decode overloads

* Do not synchronize when branching into exit block

If we're branching into an exit block, that exit block will tail
continue into another translation which already has a synchronization.

* Remove A32 predicate tail continue

If `block` is not an exit block then the `block.Next` must exist (as
per the last instruction of `block`).

* Throw if decoded 0 blocks

Address gdkchan's feedback

* Rebuild block list instead of setting to null

Address gdkchan's feedback
This commit is contained in:
Ficture Seven 2020-06-18 07:37:21 +04:00 • committed by GitHub
parent 5e724cf24e
commit 2421186d97
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
9 changed files with 178 additions and 240 deletions
Download patch file Download diff file Expand all files Collapse all files

3
ARMeilleure/Decoders/Block.cs
View file

@ -12,6 +12,7 @@ namespace ARMeilleure.Decoders
public Block Branch { get; set; }
public bool TailCall { get; set; }
public bool Exit { get; set; }
public List<OpCode> OpCodes { get; private set; }
@ -29,7 +30,7 @@ namespace ARMeilleure.Decoders
{
int splitIndex = BinarySearch(OpCodes, rightBlock.Address);
if ((ulong)OpCodes[splitIndex].Address < rightBlock.Address)
if (OpCodes[splitIndex].Address < rightBlock.Address)
{
splitIndex++;
}