tgsi: denote which load/store/atomic channels are unsigned
llvmpipe will need this info. Reviewed-by: Roland Scheidegger <sroland@vmware.com>
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@ -254,6 +254,18 @@ tgsi_opcode_infer_src_type(enum tgsi_opcode opcode, uint src_idx)
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(opcode == TGSI_OPCODE_DLDEXP || opcode == TGSI_OPCODE_LDEXP))
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return TGSI_TYPE_SIGNED;
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if (src_idx == 1 &&
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(opcode == TGSI_OPCODE_LOAD))
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return TGSI_TYPE_UNSIGNED;
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if (src_idx == 0 &&
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(opcode == TGSI_OPCODE_STORE))
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return TGSI_TYPE_UNSIGNED;
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if (src_idx == 1 &&
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opcode >= TGSI_OPCODE_ATOMUADD && opcode <= TGSI_OPCODE_ATOMIMAX)
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return TGSI_TYPE_UNSIGNED;
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switch (opcode) {
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case TGSI_OPCODE_UIF:
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case TGSI_OPCODE_TXF:
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