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shader_decode: Use BitfieldExtract instead of shift + and

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This commit is contained in:
ReinUsesLisp 2018-12-26 02:58:47 -03:00
parent 52223313b1
commit 2faad9bf23
8 changed files with 37 additions and 48 deletions
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9
src/video_core/shader/decode/bfi.cpp
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@ -28,13 +28,8 @@ u32 ShaderIR::DecodeBfi(BasicBlock& bb, u32 pc) {
}
}();
const Node insert = GetRegister(instr.gpr8);
const Node offset =
Operation(OperationCode::UBitwiseAnd, NO_PRECISE, packed_shift, Immediate(0xff));
Node bits =
Operation(OperationCode::ULogicalShiftRight, NO_PRECISE, packed_shift, Immediate(8));
bits = Operation(OperationCode::UBitwiseAnd, NO_PRECISE, bits, Immediate(0xff));
const Node offset = BitfieldExtract(packed_shift, 0, 8);
const Node bits = BitfieldExtract(packed_shift, 8, 8);
const Node value =
Operation(OperationCode::UBitfieldInsert, PRECISE, base, insert, offset, bits);