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r300: remove backend negative addressing emulation

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This is now handled in ntt.

Signed-off-by: Pavel Ondračka <pavel.ondracka@gmail.com>
Reviewed-by: Filip Gawin <filip@gawin.net>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20672>
This commit is contained in:
Pavel Ondračka 2023-01-11 14:13:05 +01:00 • committed by Marge Bot
parent 7bec63c024
commit 9db7c1a509
1 changed files with 0 additions and 72 deletions
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72
src/gallium/drivers/r300/compiler/r3xx_vertprog.c
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@ -794,77 +794,6 @@ static int swizzle_is_native(rc_opcode opcode, struct rc_src_register reg)
return 1;
}
static void transform_negative_addressing(struct r300_vertex_program_compiler *c,
struct rc_instruction *arl,
struct rc_instruction *end,
int min_offset)
{
struct rc_instruction *inst, *add;
unsigned const_swizzle;
/* Transform ARL/ARR */
add = rc_insert_new_instruction(&c->Base, arl->Prev);
add->U.I.Opcode = RC_OPCODE_ADD;
add->U.I.DstReg.File = RC_FILE_TEMPORARY;
add->U.I.DstReg.Index = rc_find_free_temporary(&c->Base);
add->U.I.DstReg.WriteMask = RC_MASK_X;
add->U.I.SrcReg[0] = arl->U.I.SrcReg[0];
add->U.I.SrcReg[1].File = RC_FILE_CONSTANT;
add->U.I.SrcReg[1].Index = rc_constants_add_immediate_scalar(&c->Base.Program.Constants,
min_offset, &const_swizzle);
add->U.I.SrcReg[1].Swizzle = const_swizzle;
arl->U.I.SrcReg[0].File = RC_FILE_TEMPORARY;
arl->U.I.SrcReg[0].Index = add->U.I.DstReg.Index;
arl->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_XXXX;
/* Rewrite offsets up to and excluding inst. */
for (inst = arl->Next; inst != end; inst = inst->Next) {
const struct rc_opcode_info * opcode = rc_get_opcode_info(inst->U.I.Opcode);
for (unsigned i = 0; i < opcode->NumSrcRegs; i++)
if (inst->U.I.SrcReg[i].RelAddr)
inst->U.I.SrcReg[i].Index -= min_offset;
}
}
static void rc_emulate_negative_addressing(struct radeon_compiler *compiler, void *user)
{
struct r300_vertex_program_compiler * c = (struct r300_vertex_program_compiler*)compiler;
struct rc_instruction *inst, *lastARL = NULL;
int min_offset = 0;
for (inst = c->Base.Program.Instructions.Next; inst != &c->Base.Program.Instructions; inst = inst->Next) {
const struct rc_opcode_info * opcode = rc_get_opcode_info(inst->U.I.Opcode);
if (inst->U.I.Opcode == RC_OPCODE_ARL || inst->U.I.Opcode == RC_OPCODE_ARR) {
if (lastARL != NULL && min_offset < 0)
transform_negative_addressing(c, lastARL, inst, min_offset);
lastARL = inst;
min_offset = 0;
continue;
}
for (unsigned i = 0; i < opcode->NumSrcRegs; i++) {
if (inst->U.I.SrcReg[i].RelAddr &&
inst->U.I.SrcReg[i].Index < 0) {
/* ARL must precede any indirect addressing. */
if (!lastARL) {
rc_error(&c->Base, "Vertex shader: Found relative addressing without ARL/ARR.");
return;
}
if (inst->U.I.SrcReg[i].Index < min_offset)
min_offset = inst->U.I.SrcReg[i].Index;
}
}
}
if (lastARL != NULL && min_offset < 0)
transform_negative_addressing(c, lastARL, inst, min_offset);
}
const struct rc_swizzle_caps r300_vertprog_swizzle_caps = {
.IsNative = &swizzle_is_native,
.Split = NULL /* should never be called */
@ -905,7 +834,6 @@ void r3xx_compile_vertex_program(struct r300_vertex_program_compiler *c)
struct radeon_compiler_pass vs_list[] = {
/* NAME DUMP PREDICATE FUNCTION PARAM */
{"add artificial outputs", 0, 1, rc_vs_add_artificial_outputs, NULL},
{"emulate negative addressing", 1, 1, rc_emulate_negative_addressing, NULL},
{"native rewrite", 1, is_r500, rc_local_transform, alu_rewrite_r500},
{"native rewrite", 1, !is_r500, rc_local_transform, alu_rewrite_r300},
{"emulate modifiers", 1, !is_r500, rc_local_transform, emulate_modifiers},