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shader: implement RDNA2 DS masked OR through shared atomic updates

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Co-authored-by: shadowbeat070 <70843316+shadowbeat070@users.noreply.github.com>
This commit is contained in:
nmzik
2026-10-04 17:18:35 +04:00
parent c3f4962715
commit 98557a83b6
11 changed files with 144 additions and 28 deletions
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tests/shaderCfgTests.cpp
+10
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@@ -4614,6 +4614,16 @@ void TestNewShaderDecoderArchitecture() {
Check(ds.opcode == Opcode::DS_READ_B32 && ds.gds,
"DS decoder lost the GFX10 opcode or GDS fields");
const uint32_t masked_or_code[] = {0xd8300144u, 0x000a0802u};
Instruction masked_or;
ShaderRecompiler::Decoder::DecodeInstruction(masked_or_code, 0u, masked_or);
Check(masked_or.opcode == Opcode::DS_MSKOR_B32 && !masked_or.gds &&
masked_or.word_count == 2u && masked_or.src_count == 3u &&
masked_or.offset == 0x144u && masked_or.src0.reg == 2u &&
masked_or.src1.reg == 8u && masked_or.src2.reg == 10u &&
masked_or.data_dwords == 1u && masked_or.data_bits == 32u,
"DS decoder misdecoded captured masked OR operands");
for (bool decrement : {false, true}) {
const uint32_t words[] = {decrement ? 0xd8920004u : 0xd88e0004u, 0x03000302u};
Instruction atomic;