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shader: take the high half per lane in V_PK_FMAC_F16 (#404)

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Co-authored-by: nmzik <Nmzik@mail.ru>
This commit is contained in:
Brandon Strong
2026-08-30 04:08:22 -07:00
committed by GitHub
parent 39ee9972b8
commit 18af08460f
3 changed files with 74 additions and 2 deletions
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tests/shaderCfgTests.cpp
+11
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@@ -4203,6 +4203,17 @@ void TestNewShaderDecoderArchitecture() {
packed_inst.src2.op_sel_hi == (source == 2u),
"VOP3P OPSEL_HI source bit mapping is incorrect");
}
const uint32_t packed_fmac_dpp[] = {0x780402fau, 0xff500000u};
Instruction packed_fmac;
Check(DecodeInstruction(packed_fmac_dpp, 0u, packed_fmac, &error),
error.c_str());
Check(packed_fmac.opcode == Opcode::V_PK_FMAC_F16 &&
packed_fmac.src0.dpp && packed_fmac.src0.op_sel_hi &&
packed_fmac.src1.op_sel_hi && packed_fmac.dst.op_sel_hi &&
packed_fmac.src0.negate && packed_fmac.src0.negate_hi &&
packed_fmac.src1.negate && packed_fmac.src1.negate_hi,
"VOP2 DPP V_PK_FMAC_F16 lost its implicit packed modifiers");
}
void TestNewShaderRecompilerRejectsDppOn64BitCompares() {