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microsoft/compiler: Handle msb/lsb/bfrev

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Reviewed-by: Sil Vilerino <sivileri@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14624>
This commit is contained in:
Jesse Natalie 2022-01-17 13:54:25 -08:00 • committed by Marge Bot
parent ac94bcf046
commit 1022435845
1 changed files with 10 additions and 41 deletions
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51
src/microsoft/compiler/nir_to_dxil.c
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@ -88,6 +88,7 @@ nir_options = {
.lower_flrp32 = true,
.lower_flrp64 = true,
.lower_bitfield_extract = true,
.lower_find_msb_to_reverse = true,
.lower_extract_word = true,
.lower_extract_byte = true,
.lower_insert_word = true,
@ -212,8 +213,11 @@ enum dxil_intr {
DXIL_INTR_ROUND_PI = 28,
DXIL_INTR_ROUND_Z = 29,
DXIL_INTR_BFREV = 30,
DXIL_INTR_COUNTBITS = 31,
DXIL_INTR_FIRSTBIT_LO = 32,
DXIL_INTR_FIRSTBIT_HI = 33,
DXIL_INTR_FIRSTBIT_SHI = 34,
DXIL_INTR_FMAX = 35,
DXIL_INTR_FMIN = 36,
@ -465,6 +469,8 @@ unary_func_name(enum dxil_intr intr)
switch (intr) {
case DXIL_INTR_COUNTBITS:
case DXIL_INTR_FIRSTBIT_HI:
case DXIL_INTR_FIRSTBIT_SHI:
case DXIL_INTR_FIRSTBIT_LO:
return "dx.op.unaryBits";
case DXIL_INTR_ISFINITE:
case DXIL_INTR_ISNORMAL:
@ -1984,46 +1990,6 @@ emit_f2b32(struct ntd_context *ctx, nir_alu_instr *alu, const struct dxil_value
return emit_cmp(ctx, alu, DXIL_FCMP_UNE, val, zero);
}
static bool
emit_ufind_msb(struct ntd_context *ctx, nir_alu_instr *alu,
const struct dxil_value *val)
{
const nir_op_info *info = &nir_op_infos[alu->op];
unsigned dst_bits = nir_dest_bit_size(alu->dest.dest);
unsigned src_bits = nir_src_bit_size(alu->src[0].src);
enum overload_type overload = get_overload(info->output_type, src_bits);
const struct dxil_value *v = emit_unary_call(ctx, overload,
DXIL_INTR_FIRSTBIT_HI, val);
if (!v)
return false;
const struct dxil_value *size = dxil_module_get_int32_const(&ctx->mod,
src_bits - 1);
const struct dxil_value *zero = dxil_module_get_int_const(&ctx->mod, 0,
src_bits);
if (!size || !zero)
return false;
v = dxil_emit_binop(&ctx->mod, DXIL_BINOP_SUB, size, v, 0);
const struct dxil_value *cnd = dxil_emit_cmp(&ctx->mod, DXIL_ICMP_NE,
val, zero);
if (!v || !cnd)
return false;
const struct dxil_value *minus_one =
dxil_module_get_int_const(&ctx->mod, -1, dst_bits);
if (!minus_one)
return false;
v = dxil_emit_select(&ctx->mod, cnd, v, minus_one);
if (!v)
return false;
store_alu_dest(ctx, alu, 0, v);
return true;
}
static bool
emit_f16tof32(struct ntd_context *ctx, nir_alu_instr *alu, const struct dxil_value *val, bool shift)
{
@ -2277,7 +2243,10 @@ emit_alu(struct ntd_context *ctx, nir_alu_instr *alu)
}
case nir_op_fsat: return emit_unary_intin(ctx, alu, DXIL_INTR_SATURATE, src[0]);
case nir_op_bit_count: return emit_unary_intin(ctx, alu, DXIL_INTR_COUNTBITS, src[0]);
case nir_op_ufind_msb: return emit_ufind_msb(ctx, alu, src[0]);
case nir_op_bitfield_reverse: return emit_unary_intin(ctx, alu, DXIL_INTR_BFREV, src[0]);
case nir_op_ufind_msb_rev: return emit_unary_intin(ctx, alu, DXIL_INTR_FIRSTBIT_HI, src[0]);
case nir_op_ifind_msb_rev: return emit_unary_intin(ctx, alu, DXIL_INTR_FIRSTBIT_SHI, src[0]);
case nir_op_find_lsb: return emit_unary_intin(ctx, alu, DXIL_INTR_FIRSTBIT_LO, src[0]);
case nir_op_imax: return emit_binary_intin(ctx, alu, DXIL_INTR_IMAX, src[0], src[1]);
case nir_op_imin: return emit_binary_intin(ctx, alu, DXIL_INTR_IMIN, src[0], src[1]);
case nir_op_umax: return emit_binary_intin(ctx, alu, DXIL_INTR_UMAX, src[0], src[1]);