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ac/nir: Implement the deref instr for shared memory. 

v2: Store the result in ctx->ssa_defs.
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Bas Nieuwenhuizen 2018-04-25 00:45:33 +02:00 committed by Jason Ekstrand
parent c11833ab24
commit 4a888beea9
1 changed files with 31 additions and 0 deletions
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31
src/amd/common/ac_nir_to_llvm.c
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@ -3583,6 +3583,34 @@ static void visit_jump(struct ac_llvm_context *ctx,
}
}
static void visit_deref(struct ac_nir_context *ctx,
nir_deref_instr *instr)
{
if (instr->mode != nir_var_shared)
return;
LLVMValueRef result = NULL;
switch(instr->deref_type) {
case nir_deref_type_var: {
struct hash_entry *entry = _mesa_hash_table_search(ctx->vars, instr->var);
result = entry->data;
break;
}
case nir_deref_type_struct:
result = ac_build_gep0(&ctx->ac, get_src(ctx, instr->parent),
LLVMConstInt(ctx->ac.i32, instr->strct.index, 0));
break;
case nir_deref_type_array:
result = ac_build_gep0(&ctx->ac, get_src(ctx, instr->parent),
get_src(ctx, instr->arr.index));
break;
default:
unreachable("Unhandled deref_instr deref type");
}
ctx->ssa_defs[instr->dest.ssa.index] = result;
}
static void visit_cf_list(struct ac_nir_context *ctx,
struct exec_list *list);
@ -3613,6 +3641,9 @@ static void visit_block(struct ac_nir_context *ctx, nir_block *block)
case nir_instr_type_jump:
visit_jump(&ctx->ac, nir_instr_as_jump(instr));
break;
case nir_instr_type_deref:
visit_deref(ctx, nir_instr_as_deref(instr));
break;
default:
fprintf(stderr, "Unknown NIR instr type: ");
nir_print_instr(instr, stderr);