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shader: support SDWA byte shift counts

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This commit is contained in:
nmzik
2026-08-29 05:15:26 +04:00
parent 6980e0863d
commit 07f1e77d23
2 changed files with 17 additions and 1 deletions
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tests/shaderCfgTests.cpp
+16
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@@ -4043,6 +4043,22 @@ void TestNewShaderDecoderArchitecture() {
"decoder rejected or misdecoded captured partial-destination "
"V_ADD_NC_U32");
const uint32_t vop2_sdwa_byte_shift[] = {
0x2c0910f9u,
0x86000613u, // v_lshrrev_b32 v4, v19.byte0, 8
};
Instruction byte_shift;
Check(DecodeInstruction(vop2_sdwa_byte_shift, 0u, byte_shift, &error),
error.c_str());
Check(byte_shift.family == Family::VOP2 &&
byte_shift.opcode == Opcode::V_LSHRREV_B32 &&
byte_shift.word_count == 2u && byte_shift.dst.reg == 4u &&
byte_shift.src0.kind == OperandKind::Vgpr &&
byte_shift.src0.reg == 19u && byte_shift.src0.sdwa_sel == 0u &&
byte_shift.src1.kind == OperandKind::IntegerInlineConstant &&
byte_shift.src1.value == 8u,
"decoder rejected or misdecoded captured V_LSHRREV_B32 byte shift");
const uint32_t mimg_nsa[] = {EncodeMimg0(0x20, 0xf) | (3u << 1u),
EncodeMimg1(4, 0, 1, 8), 0x03020100u,
0x07060504u, 0x0b0a0908u};