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shader: support SDWA byte left-shift counts

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nmzik
2026-08-29 05:48:49 +04:00
parent 07f1e77d23
commit b02eb28fd1
2 changed files with 19 additions and 1 deletions
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tests/shaderCfgTests.cpp
+18
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@@ -4059,6 +4059,24 @@ void TestNewShaderDecoderArchitecture() {
byte_shift.src1.value == 8u,
"decoder rejected or misdecoded captured V_LSHRREV_B32 byte shift");
const uint32_t vop2_sdwa_byte_left_shift[] = {
0x340d02f9u,
0x86030607u, // v_lshlrev_b32 v6, v7.byte3, 1
};
Instruction byte_left_shift;
Check(DecodeInstruction(vop2_sdwa_byte_left_shift, 0u, byte_left_shift,
&error),
error.c_str());
Check(byte_left_shift.family == Family::VOP2 &&
byte_left_shift.opcode == Opcode::V_LSHLREV_B32 &&
byte_left_shift.word_count == 2u && byte_left_shift.dst.reg == 6u &&
byte_left_shift.src0.kind == OperandKind::Vgpr &&
byte_left_shift.src0.reg == 7u &&
byte_left_shift.src0.sdwa_sel == 3u &&
byte_left_shift.src1.kind == OperandKind::IntegerInlineConstant &&
byte_left_shift.src1.value == 1u,
"decoder rejected or misdecoded captured V_LSHLREV_B32 byte shift");
const uint32_t mimg_nsa[] = {EncodeMimg0(0x20, 0xf) | (3u << 1u),
EncodeMimg1(4, 0, 1, 8), 0x03020100u,
0x07060504u, 0x0b0a0908u};