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Implement CAL and RET shader instructions (#1618)

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* Add support for CAL and RET shader instructions

* Remove unused stuff

* Fix a bug that could cause the wrong values to be passed to a function

* Avoid repopulating function id dictionary every time

* PR feedback

* Fix vertex shader A/B merge
This commit is contained in:
gdkchan 2020-10-25 17:00:44 -03:00 • committed by GitHub
parent 973a615d40
commit 49f970d5bd
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GPG key ID: 4AEE18F83AFDEB23
33 changed files with 1337 additions and 401 deletions
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49
Ryujinx.Graphics.Shader/Translation/ControlFlowGraph.cs
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@ -3,9 +3,52 @@ using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Translation
{
static class ControlFlowGraph
class ControlFlowGraph
{
public static BasicBlock[] MakeCfg(Operation[] operations)
public BasicBlock[] Blocks { get; }
public BasicBlock[] PostOrderBlocks { get; }
public int[] PostOrderMap { get; }
public ControlFlowGraph(BasicBlock[] blocks)
{
Blocks = blocks;
HashSet<BasicBlock> visited = new HashSet<BasicBlock>();
Stack<BasicBlock> blockStack = new Stack<BasicBlock>();
List<BasicBlock> postOrderBlocks = new List<BasicBlock>(blocks.Length);
PostOrderMap = new int[blocks.Length];
visited.Add(blocks[0]);
blockStack.Push(blocks[0]);
while (blockStack.TryPop(out BasicBlock block))
{
if (block.Next != null && visited.Add(block.Next))
{
blockStack.Push(block);
blockStack.Push(block.Next);
}
else if (block.Branch != null && visited.Add(block.Branch))
{
blockStack.Push(block);
blockStack.Push(block.Branch);
}
else
{
PostOrderMap[block.Index] = postOrderBlocks.Count;
postOrderBlocks.Add(block);
}
}
PostOrderBlocks = postOrderBlocks.ToArray();
}
public static ControlFlowGraph Create(Operation[] operations)
{
Dictionary<Operand, BasicBlock> labels = new Dictionary<Operand, BasicBlock>();
@ -86,7 +129,7 @@ namespace Ryujinx.Graphics.Shader.Translation
}
}
return blocks.ToArray();
return new ControlFlowGraph(blocks.ToArray());
}
private static bool EndsWithUnconditionalInst(INode node)