mirror of https://gitlab.freedesktop.org/mesa/mesa
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/*
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* Copyright 2022 Alyssa Rosenzweig
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* SPDX-License-Identifier: MIT
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*/
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#include "agx_builder.h"
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#include "agx_compiler.h"
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/* Lower pseudo instructions created during optimization. */
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static agx_instr *
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lower(agx_builder *b, agx_instr *I)
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{
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switch (I->op) {
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/* Various instructions are implemented as bitwise truth tables */
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case AGX_OPCODE_MOV:
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return agx_bitop_to(b, I->dest[0], I->src[0], agx_zero(), AGX_BITOP_MOV);
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case AGX_OPCODE_NOT:
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return agx_bitop_to(b, I->dest[0], I->src[0], agx_zero(), AGX_BITOP_NOT);
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case AGX_OPCODE_AND:
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return agx_bitop_to(b, I->dest[0], I->src[0], I->src[1], AGX_BITOP_AND);
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case AGX_OPCODE_XOR:
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return agx_bitop_to(b, I->dest[0], I->src[0], I->src[1], AGX_BITOP_XOR);
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case AGX_OPCODE_OR:
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return agx_bitop_to(b, I->dest[0], I->src[0], I->src[1], AGX_BITOP_OR);
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default:
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return NULL;
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}
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}
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void
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agx_lower_pseudo(agx_context *ctx)
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{
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agx_foreach_instr_global_safe(ctx, I) {
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agx_builder b = agx_init_builder(ctx, agx_before_instr(I));
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if (lower(&b, I))
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agx_remove_instruction(I);
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}
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}
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