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shader: support IMAGE_ATOMIC_SWAP (#456)

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This commit is contained in:
Brandon Strong
2026-09-02 18:37:55 -07:00
committed by GitHub
parent 98200fed19
commit 2d5023fda2
8 changed files with 44 additions and 1 deletions
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tests/ShaderRecompilerComputeTests.cpp
+35
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@@ -12206,6 +12206,7 @@ CoverageClass ClassifyOpcode(ShaderOpcode opcode,
case Opcode::IMAGE_LOAD_MIP:
case Opcode::IMAGE_STORE:
case Opcode::IMAGE_STORE_MIP:
case Opcode::IMAGE_ATOMIC_SWAP:
case Opcode::IMAGE_ATOMIC_ADD:
case Opcode::IMAGE_ATOMIC_UMIN:
case Opcode::IMAGE_ATOMIC_AND:
@@ -20897,6 +20898,39 @@ TestCase ImageStoreAndAtomicShareTypedBinding() {
return test;
}
TestCase ImageAtomicSwapReturnsPreviousTexel() {
using O = ShaderOpcode;
std::vector<u32> code;
AppendVMovU32(&code, 20, 2);
AppendVMovU32(&code, 21, 1);
AppendVMovU32(&code, 22, 0);
AppendVMovU32(&code, 0, 5);
code.push_back(EncodeMimg0(0x08, 0x1));
code.push_back(EncodeMimg1(0, 20));
AppendVMovU32(&code, 0, 3);
code.push_back(EncodeMimg0(0x0f, 0x1, 0, true));
code.push_back(EncodeMimg1(0, 20));
AppendStoreVgpr(&code, 0, 0);
AppendEnd(&code);
std::vector<u32> expected_image(16, 0);
expected_image[1 * 4 + 2] = 3;
TestCase test;
test.name = "ImageAtomicSwapReturnsPreviousTexel";
test.code = std::move(code);
test.expected = {5};
test.opcodes = {O::V_MOV_B32, O::IMAGE_STORE, O::IMAGE_ATOMIC_SWAP,
O::BUFFER_STORE_DWORD, O::S_ENDPGM};
test.user_data = MakeStorageTextureData(Prospero::BufferFormat::k32UInt);
test.has_user_data = true;
test.storage_image_r32ui = std::vector<u32>(16, 0);
test.expected_storage_image_r32ui = std::move(expected_image);
test.required_spirv = {"OpAtomicExchange", "OpImageTexelPointer"};
return test;
}
TestCase ImageStoreAndAtomicUseSeparateBindings() {
using O = ShaderOpcode;
@@ -21566,6 +21600,7 @@ std::vector<TestCase> MakeCases() {
AddCase(ImageStorePackedUintHonorsSparseDmask);
AddCase(ComputeTgSizeSgprUsesWaveMetadata);
AddCase(ImageStoreAndAtomicShareTypedBinding);
AddCase(ImageAtomicSwapReturnsPreviousTexel);
AddCase(ImageStoreAndAtomicUseSeparateBindings);
AddCase(ImageAtomicVariants);
AddCase(ImageAtomicGlc0DoesNotReturnOldValue);