9becbd7d72
* dotnet format style --severity info Some changes were manually reverted. * Restore a few unused methods and variables * Silence dotnet format IDE0060 warnings * Silence dotnet format IDE0052 warnings * Silence dotnet format IDE0059 warnings * Address or silence dotnet format CA1069 warnings * Address or silence dotnet format CA2211 warnings * Address review comments * Fix formatting for switch expressions * Address most dotnet format whitespace warnings * Apply dotnet format whitespace formatting A few of them have been manually reverted and the corresponding warning was silenced * Format if-blocks correctly * Run dotnet format whitespace after rebase * Run dotnet format style after rebase * Run dotnet format whitespace after rebase * Run dotnet format style after rebase * Run dotnet format after rebase and remove unused usings - analyzers - style - whitespace * Disable 'prefer switch expression' rule * Add comments to disabled warnings * Fix naming rule violation, Convert shader properties to auto-property and convert values to const * Simplify properties and array initialization, Use const when possible, Remove trailing commas * Run dotnet format after rebase * Address IDE0251 warnings * Address a few disabled IDE0060 warnings * Silence IDE0060 in .editorconfig * Run dotnet format after rebase * Revert "Simplify properties and array initialization, Use const when possible, Remove trailing commas" This reverts commit 9462e4136c0a2100dc28b20cf9542e06790aa67e. * dotnet format whitespace after rebase * First dotnet format pass * Fix naming rule violations * Add trailing commas * Remove unused members and most unnecessary value assignments * Remove more unnecessary assignments * Remove NRE suppressor
94 lines
3 KiB
C#
94 lines
3 KiB
C#
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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namespace Ryujinx.Graphics.Shader.Translation
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{
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static class Dominance
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{
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// Those methods are an implementation of the algorithms on "A Simple, Fast Dominance Algorithm".
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// https://www.cs.rice.edu/~keith/EMBED/dom.pdf
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public static void FindDominators(ControlFlowGraph cfg)
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{
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BasicBlock Intersect(BasicBlock block1, BasicBlock block2)
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{
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while (block1 != block2)
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{
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while (cfg.PostOrderMap[block1.Index] < cfg.PostOrderMap[block2.Index])
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{
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block1 = block1.ImmediateDominator;
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}
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while (cfg.PostOrderMap[block2.Index] < cfg.PostOrderMap[block1.Index])
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{
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block2 = block2.ImmediateDominator;
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}
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}
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return block1;
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}
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cfg.Blocks[0].ImmediateDominator = cfg.Blocks[0];
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bool modified;
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do
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{
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modified = false;
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for (int blkIndex = cfg.PostOrderBlocks.Length - 2; blkIndex >= 0; blkIndex--)
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{
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BasicBlock block = cfg.PostOrderBlocks[blkIndex];
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BasicBlock newIDom = null;
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foreach (BasicBlock predecessor in block.Predecessors)
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{
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if (predecessor.ImmediateDominator != null)
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{
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if (newIDom != null)
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{
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newIDom = Intersect(predecessor, newIDom);
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}
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else
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{
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newIDom = predecessor;
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}
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}
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}
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if (block.ImmediateDominator != newIDom)
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{
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block.ImmediateDominator = newIDom;
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modified = true;
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}
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}
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}
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while (modified);
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}
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public static void FindDominanceFrontiers(BasicBlock[] blocks)
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{
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for (int blkIndex = 0; blkIndex < blocks.Length; blkIndex++)
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{
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BasicBlock block = blocks[blkIndex];
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if (block.Predecessors.Count < 2)
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{
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continue;
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}
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for (int pBlkIndex = 0; pBlkIndex < block.Predecessors.Count; pBlkIndex++)
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{
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BasicBlock current = block.Predecessors[pBlkIndex];
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while (current != block.ImmediateDominator)
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{
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current.DominanceFrontiers.Add(block);
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current = current.ImmediateDominator;
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}
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}
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}
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}
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}
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}
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