#include "nir_builder.h"
static nir_ssa_def *
-lower_umul64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+lower_b2i64(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_pack_64_2x32_split(b, nir_b2i32(b, x), nir_imm_int(b, 0));
+}
+
+static nir_ssa_def *
+lower_i2b(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_ine(b, nir_ior(b, nir_unpack_64_2x32_split_x(b, x),
+ nir_unpack_64_2x32_split_y(b, x)),
+ nir_imm_int(b, 0));
+}
+
+static nir_ssa_def *
+lower_i2i8(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_i2i8(b, nir_unpack_64_2x32_split_x(b, x));
+}
+
+static nir_ssa_def *
+lower_i2i16(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_i2i16(b, nir_unpack_64_2x32_split_x(b, x));
+}
+
+
+static nir_ssa_def *
+lower_i2i32(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_unpack_64_2x32_split_x(b, x);
+}
+
+static nir_ssa_def *
+lower_i2i64(nir_builder *b, nir_ssa_def *x)
+{
+ nir_ssa_def *x32 = x->bit_size == 32 ? x : nir_i2i32(b, x);
+ return nir_pack_64_2x32_split(b, x32, nir_ishr(b, x32, nir_imm_int(b, 31)));
+}
+
+static nir_ssa_def *
+lower_u2u8(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_u2u8(b, nir_unpack_64_2x32_split_x(b, x));
+}
+
+static nir_ssa_def *
+lower_u2u16(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_u2u16(b, nir_unpack_64_2x32_split_x(b, x));
+}
+
+static nir_ssa_def *
+lower_u2u32(nir_builder *b, nir_ssa_def *x)
+{
+ return nir_unpack_64_2x32_split_x(b, x);
+}
+
+static nir_ssa_def *
+lower_u2u64(nir_builder *b, nir_ssa_def *x)
+{
+ nir_ssa_def *x32 = x->bit_size == 32 ? x : nir_u2u32(b, x);
+ return nir_pack_64_2x32_split(b, x32, nir_imm_int(b, 0));
+}
+
+static nir_ssa_def *
+lower_bcsel64(nir_builder *b, nir_ssa_def *cond, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ return nir_pack_64_2x32_split(b, nir_bcsel(b, cond, x_lo, y_lo),
+ nir_bcsel(b, cond, x_hi, y_hi));
+}
+
+static nir_ssa_def *
+lower_inot64(nir_builder *b, nir_ssa_def *x)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+
+ return nir_pack_64_2x32_split(b, nir_inot(b, x_lo), nir_inot(b, x_hi));
+}
+
+static nir_ssa_def *
+lower_iand64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ return nir_pack_64_2x32_split(b, nir_iand(b, x_lo, y_lo),
+ nir_iand(b, x_hi, y_hi));
+}
+
+static nir_ssa_def *
+lower_ior64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ return nir_pack_64_2x32_split(b, nir_ior(b, x_lo, y_lo),
+ nir_ior(b, x_hi, y_hi));
+}
+
+static nir_ssa_def *
+lower_ixor64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ return nir_pack_64_2x32_split(b, nir_ixor(b, x_lo, y_lo),
+ nir_ixor(b, x_hi, y_hi));
+}
+
+static nir_ssa_def *
+lower_ishl64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ /* Implemented as
+ *
+ * uint64_t lshift(uint64_t x, int c)
+ * {
+ * if (c == 0) return x;
+ *
+ * uint32_t lo = LO(x), hi = HI(x);
+ *
+ * if (c < 32) {
+ * uint32_t lo_shifted = lo << c;
+ * uint32_t hi_shifted = hi << c;
+ * uint32_t lo_shifted_hi = lo >> abs(32 - c);
+ * return pack_64(lo_shifted, hi_shifted | lo_shifted_hi);
+ * } else {
+ * uint32_t lo_shifted_hi = lo << abs(32 - c);
+ * return pack_64(0, lo_shifted_hi);
+ * }
+ * }
+ */
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+
+ nir_ssa_def *reverse_count = nir_iabs(b, nir_iadd(b, y, nir_imm_int(b, -32)));
+ nir_ssa_def *lo_shifted = nir_ishl(b, x_lo, y);
+ nir_ssa_def *hi_shifted = nir_ishl(b, x_hi, y);
+ nir_ssa_def *lo_shifted_hi = nir_ushr(b, x_lo, reverse_count);
+
+ nir_ssa_def *res_if_lt_32 =
+ nir_pack_64_2x32_split(b, lo_shifted,
+ nir_ior(b, hi_shifted, lo_shifted_hi));
+ nir_ssa_def *res_if_ge_32 =
+ nir_pack_64_2x32_split(b, nir_imm_int(b, 0),
+ nir_ishl(b, x_lo, reverse_count));
+
+ return nir_bcsel(b,
+ nir_ieq(b, y, nir_imm_int(b, 0)), x,
+ nir_bcsel(b, nir_uge(b, y, nir_imm_int(b, 32)),
+ res_if_ge_32, res_if_lt_32));
+}
+
+static nir_ssa_def *
+lower_ishr64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ /* Implemented as
+ *
+ * uint64_t arshift(uint64_t x, int c)
+ * {
+ * if (c == 0) return x;
+ *
+ * uint32_t lo = LO(x);
+ * int32_t hi = HI(x);
+ *
+ * if (c < 32) {
+ * uint32_t lo_shifted = lo >> c;
+ * uint32_t hi_shifted = hi >> c;
+ * uint32_t hi_shifted_lo = hi << abs(32 - c);
+ * return pack_64(hi_shifted, hi_shifted_lo | lo_shifted);
+ * } else {
+ * uint32_t hi_shifted = hi >> 31;
+ * uint32_t hi_shifted_lo = hi >> abs(32 - c);
+ * return pack_64(hi_shifted, hi_shifted_lo);
+ * }
+ * }
+ */
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+
+ nir_ssa_def *reverse_count = nir_iabs(b, nir_iadd(b, y, nir_imm_int(b, -32)));
+ nir_ssa_def *lo_shifted = nir_ushr(b, x_lo, y);
+ nir_ssa_def *hi_shifted = nir_ishr(b, x_hi, y);
+ nir_ssa_def *hi_shifted_lo = nir_ishl(b, x_hi, reverse_count);
+
+ nir_ssa_def *res_if_lt_32 =
+ nir_pack_64_2x32_split(b, nir_ior(b, lo_shifted, hi_shifted_lo),
+ hi_shifted);
+ nir_ssa_def *res_if_ge_32 =
+ nir_pack_64_2x32_split(b, nir_ishr(b, x_hi, reverse_count),
+ nir_ishr(b, x_hi, nir_imm_int(b, 31)));
+
+ return nir_bcsel(b,
+ nir_ieq(b, y, nir_imm_int(b, 0)), x,
+ nir_bcsel(b, nir_uge(b, y, nir_imm_int(b, 32)),
+ res_if_ge_32, res_if_lt_32));
+}
+
+static nir_ssa_def *
+lower_ushr64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ /* Implemented as
+ *
+ * uint64_t rshift(uint64_t x, int c)
+ * {
+ * if (c == 0) return x;
+ *
+ * uint32_t lo = LO(x), hi = HI(x);
+ *
+ * if (c < 32) {
+ * uint32_t lo_shifted = lo >> c;
+ * uint32_t hi_shifted = hi >> c;
+ * uint32_t hi_shifted_lo = hi << abs(32 - c);
+ * return pack_64(hi_shifted, hi_shifted_lo | lo_shifted);
+ * } else {
+ * uint32_t hi_shifted_lo = hi >> abs(32 - c);
+ * return pack_64(0, hi_shifted_lo);
+ * }
+ * }
+ */
+
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+
+ nir_ssa_def *reverse_count = nir_iabs(b, nir_iadd(b, y, nir_imm_int(b, -32)));
+ nir_ssa_def *lo_shifted = nir_ushr(b, x_lo, y);
+ nir_ssa_def *hi_shifted = nir_ushr(b, x_hi, y);
+ nir_ssa_def *hi_shifted_lo = nir_ishl(b, x_hi, reverse_count);
+
+ nir_ssa_def *res_if_lt_32 =
+ nir_pack_64_2x32_split(b, nir_ior(b, lo_shifted, hi_shifted_lo),
+ hi_shifted);
+ nir_ssa_def *res_if_ge_32 =
+ nir_pack_64_2x32_split(b, nir_ushr(b, x_hi, reverse_count),
+ nir_imm_int(b, 0));
+
+ return nir_bcsel(b,
+ nir_ieq(b, y, nir_imm_int(b, 0)), x,
+ nir_bcsel(b, nir_uge(b, y, nir_imm_int(b, 32)),
+ res_if_ge_32, res_if_lt_32));
+}
+
+static nir_ssa_def *
+lower_iadd64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ nir_ssa_def *res_lo = nir_iadd(b, x_lo, y_lo);
+ nir_ssa_def *carry = nir_b2i32(b, nir_ult(b, res_lo, x_lo));
+ nir_ssa_def *res_hi = nir_iadd(b, carry, nir_iadd(b, x_hi, y_hi));
+
+ return nir_pack_64_2x32_split(b, res_lo, res_hi);
+}
+
+static nir_ssa_def *
+lower_isub64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ nir_ssa_def *res_lo = nir_isub(b, x_lo, y_lo);
+ nir_ssa_def *borrow = nir_ineg(b, nir_b2i32(b, nir_ult(b, x_lo, y_lo)));
+ nir_ssa_def *res_hi = nir_iadd(b, nir_isub(b, x_hi, y_hi), borrow);
+
+ return nir_pack_64_2x32_split(b, res_lo, res_hi);
+}
+
+static nir_ssa_def *
+lower_ineg64(nir_builder *b, nir_ssa_def *x)
+{
+ /* Since isub is the same number of instructions (with better dependencies)
+ * as iadd, subtraction is actually more efficient for ineg than the usual
+ * 2's complement "flip the bits and add one".
+ */
+ return lower_isub64(b, nir_imm_int64(b, 0), x);
+}
+
+static nir_ssa_def *
+lower_iabs64(nir_builder *b, nir_ssa_def *x)
+{
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *x_is_neg = nir_ilt(b, x_hi, nir_imm_int(b, 0));
+ return nir_bcsel(b, x_is_neg, nir_ineg(b, x), x);
+}
+
+static nir_ssa_def *
+lower_int64_compare(nir_builder *b, nir_op op, nir_ssa_def *x, nir_ssa_def *y)
+{
+ nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
+ nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
+ nir_ssa_def *y_lo = nir_unpack_64_2x32_split_x(b, y);
+ nir_ssa_def *y_hi = nir_unpack_64_2x32_split_y(b, y);
+
+ switch (op) {
+ case nir_op_ieq:
+ return nir_iand(b, nir_ieq(b, x_hi, y_hi), nir_ieq(b, x_lo, y_lo));
+ case nir_op_ine:
+ return nir_ior(b, nir_ine(b, x_hi, y_hi), nir_ine(b, x_lo, y_lo));
+ case nir_op_ult:
+ return nir_ior(b, nir_ult(b, x_hi, y_hi),
+ nir_iand(b, nir_ieq(b, x_hi, y_hi),
+ nir_ult(b, x_lo, y_lo)));
+ case nir_op_ilt:
+ return nir_ior(b, nir_ilt(b, x_hi, y_hi),
+ nir_iand(b, nir_ieq(b, x_hi, y_hi),
+ nir_ult(b, x_lo, y_lo)));
+ break;
+ case nir_op_uge:
+ /* Lower as !(x < y) in the hopes of better CSE */
+ return nir_inot(b, lower_int64_compare(b, nir_op_ult, x, y));
+ case nir_op_ige:
+ /* Lower as !(x < y) in the hopes of better CSE */
+ return nir_inot(b, lower_int64_compare(b, nir_op_ilt, x, y));
+ default:
+ unreachable("Invalid comparison");
+ }
+}
+
+static nir_ssa_def *
+lower_umax64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ return nir_bcsel(b, lower_int64_compare(b, nir_op_ult, x, y), y, x);
+}
+
+static nir_ssa_def *
+lower_imax64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ return nir_bcsel(b, lower_int64_compare(b, nir_op_ilt, x, y), y, x);
+}
+
+static nir_ssa_def *
+lower_umin64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ return nir_bcsel(b, lower_int64_compare(b, nir_op_ult, x, y), x, y);
+}
+
+static nir_ssa_def *
+lower_imin64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
+{
+ return nir_bcsel(b, lower_int64_compare(b, nir_op_ilt, x, y), x, y);
+}
+
+static nir_ssa_def *
+lower_imul64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y)
{
nir_ssa_def *x_lo = nir_unpack_64_2x32_split_x(b, x);
nir_ssa_def *x_hi = nir_unpack_64_2x32_split_y(b, x);
return nir_pack_64_2x32_split(b, res_lo, res_hi);
}
+static nir_ssa_def *
+lower_mul_high64(nir_builder *b, nir_ssa_def *x, nir_ssa_def *y,
+ bool sign_extend)
+{
+ nir_ssa_def *x32[4], *y32[4];
+ x32[0] = nir_unpack_64_2x32_split_x(b, x);
+ x32[1] = nir_unpack_64_2x32_split_y(b, x);
+ if (sign_extend) {
+ x32[2] = x32[3] = nir_ishr(b, x32[1], nir_imm_int(b, 31));
+ } else {
+ x32[2] = x32[3] = nir_imm_int(b, 0);
+ }
+
+ y32[0] = nir_unpack_64_2x32_split_x(b, y);
+ y32[1] = nir_unpack_64_2x32_split_y(b, y);
+ if (sign_extend) {
+ y32[2] = y32[3] = nir_ishr(b, y32[1], nir_imm_int(b, 31));
+ } else {
+ y32[2] = y32[3] = nir_imm_int(b, 0);
+ }
+
+ nir_ssa_def *res[8] = { NULL, };
+
+ /* Yes, the following generates a pile of code. However, we throw res[0]
+ * and res[1] away in the end and, if we're in the umul case, four of our
+ * eight dword operands will be constant zero and opt_algebraic will clean
+ * this up nicely.
+ */
+ for (unsigned i = 0; i < 4; i++) {
+ nir_ssa_def *carry = NULL;
+ for (unsigned j = 0; j < 4; j++) {
+ /* The maximum values of x32[i] and y32[i] are UINT32_MAX so the
+ * maximum value of tmp is UINT32_MAX * UINT32_MAX. The maximum
+ * value that will fit in tmp is
+ *
+ * UINT64_MAX = UINT32_MAX << 32 + UINT32_MAX
+ * = UINT32_MAX * (UINT32_MAX + 1) + UINT32_MAX
+ * = UINT32_MAX * UINT32_MAX + 2 * UINT32_MAX
+ *
+ * so we're guaranteed that we can add in two more 32-bit values
+ * without overflowing tmp.
+ */
+ nir_ssa_def *tmp =
+ nir_pack_64_2x32_split(b, nir_imul(b, x32[i], y32[j]),
+ nir_umul_high(b, x32[i], y32[j]));
+ if (res[i + j])
+ tmp = nir_iadd(b, tmp, nir_u2u64(b, res[i + j]));
+ if (carry)
+ tmp = nir_iadd(b, tmp, carry);
+ res[i + j] = nir_u2u32(b, tmp);
+ carry = nir_ushr(b, tmp, nir_imm_int(b, 32));
+ }
+ res[i + 4] = nir_u2u32(b, carry);
+ }
+
+ return nir_pack_64_2x32_split(b, res[2], res[3]);
+}
+
static nir_ssa_def *
lower_isign64(nir_builder *b, nir_ssa_def *x)
{
nir_ssa_def *is_non_zero = nir_i2b(b, nir_ior(b, x_lo, x_hi));
nir_ssa_def *res_hi = nir_ishr(b, x_hi, nir_imm_int(b, 31));
- nir_ssa_def *res_lo = nir_ior(b, res_hi, nir_b2i(b, is_non_zero));
+ nir_ssa_def *res_lo = nir_ior(b, res_hi, nir_b2i32(b, is_non_zero));
return nir_pack_64_2x32_split(b, res_lo, res_hi);
}
* this is always true within the if statement.
*/
if (n->num_components == 1)
- need_high_div = nir_imm_int(b, NIR_TRUE);
+ need_high_div = nir_imm_true(b);
nir_ssa_def *log2_d_lo = nir_ufind_msb(b, d_lo);
{
nir_ssa_def *n_hi = nir_unpack_64_2x32_split_y(b, n);
nir_ssa_def *d_hi = nir_unpack_64_2x32_split_y(b, d);
+ nir_ssa_def *n_is_neg = nir_ilt(b, n_hi, nir_imm_int(b, 0));
+ nir_ssa_def *d_is_neg = nir_ilt(b, d_hi, nir_imm_int(b, 0));
+
+ nir_ssa_def *q, *r;
+ lower_udiv64_mod64(b, nir_iabs(b, n), nir_iabs(b, d), &q, &r);
+
+ nir_ssa_def *rem = nir_bcsel(b, n_is_neg, nir_ineg(b, r), r);
+
+ return nir_bcsel(b, nir_ieq(b, r, nir_imm_int64(b, 0)), nir_imm_int64(b, 0),
+ nir_bcsel(b, nir_ieq(b, n_is_neg, d_is_neg), rem,
+ nir_iadd(b, rem, d)));
+}
+
+static nir_ssa_def *
+lower_irem64(nir_builder *b, nir_ssa_def *n, nir_ssa_def *d)
+{
+ nir_ssa_def *n_hi = nir_unpack_64_2x32_split_y(b, n);
+ nir_ssa_def *n_is_neg = nir_ilt(b, n_hi, nir_imm_int(b, 0));
- nir_ssa_def *negate = nir_ine(b, nir_ilt(b, n_hi, nir_imm_int(b, 0)),
- nir_ilt(b, d_hi, nir_imm_int(b, 0)));
nir_ssa_def *q, *r;
lower_udiv64_mod64(b, nir_iabs(b, n), nir_iabs(b, d), &q, &r);
- return nir_bcsel(b, negate, nir_ineg(b, r), r);
+ return nir_bcsel(b, n_is_neg, nir_ineg(b, r), r);
+}
+
+static nir_lower_int64_options
+opcode_to_options_mask(nir_op opcode)
+{
+ switch (opcode) {
+ case nir_op_imul:
+ return nir_lower_imul64;
+ case nir_op_imul_high:
+ case nir_op_umul_high:
+ return nir_lower_imul_high64;
+ case nir_op_isign:
+ return nir_lower_isign64;
+ case nir_op_udiv:
+ case nir_op_idiv:
+ case nir_op_umod:
+ case nir_op_imod:
+ case nir_op_irem:
+ return nir_lower_divmod64;
+ case nir_op_b2i64:
+ case nir_op_i2b1:
+ case nir_op_i2i32:
+ case nir_op_i2i64:
+ case nir_op_u2u32:
+ case nir_op_u2u64:
+ case nir_op_bcsel:
+ return nir_lower_mov64;
+ case nir_op_ieq:
+ case nir_op_ine:
+ case nir_op_ult:
+ case nir_op_ilt:
+ case nir_op_uge:
+ case nir_op_ige:
+ return nir_lower_icmp64;
+ case nir_op_iadd:
+ case nir_op_isub:
+ return nir_lower_iadd64;
+ case nir_op_imin:
+ case nir_op_imax:
+ case nir_op_umin:
+ case nir_op_umax:
+ return nir_lower_minmax64;
+ case nir_op_iabs:
+ return nir_lower_iabs64;
+ case nir_op_ineg:
+ return nir_lower_ineg64;
+ case nir_op_iand:
+ case nir_op_ior:
+ case nir_op_ixor:
+ case nir_op_inot:
+ return nir_lower_logic64;
+ case nir_op_ishl:
+ case nir_op_ishr:
+ case nir_op_ushr:
+ return nir_lower_shift64;
+ default:
+ return 0;
+ }
+}
+
+static nir_ssa_def *
+lower_int64_alu_instr(nir_builder *b, nir_alu_instr *alu)
+{
+ nir_ssa_def *src[4];
+ for (unsigned i = 0; i < nir_op_infos[alu->op].num_inputs; i++)
+ src[i] = nir_ssa_for_alu_src(b, alu, i);
+
+ switch (alu->op) {
+ case nir_op_imul:
+ return lower_imul64(b, src[0], src[1]);
+ case nir_op_imul_high:
+ return lower_mul_high64(b, src[0], src[1], true);
+ case nir_op_umul_high:
+ return lower_mul_high64(b, src[0], src[1], false);
+ case nir_op_isign:
+ return lower_isign64(b, src[0]);
+ case nir_op_udiv:
+ return lower_udiv64(b, src[0], src[1]);
+ case nir_op_idiv:
+ return lower_idiv64(b, src[0], src[1]);
+ case nir_op_umod:
+ return lower_umod64(b, src[0], src[1]);
+ case nir_op_imod:
+ return lower_imod64(b, src[0], src[1]);
+ case nir_op_irem:
+ return lower_irem64(b, src[0], src[1]);
+ case nir_op_b2i64:
+ return lower_b2i64(b, src[0]);
+ case nir_op_i2b1:
+ return lower_i2b(b, src[0]);
+ case nir_op_i2i8:
+ return lower_i2i8(b, src[0]);
+ case nir_op_i2i16:
+ return lower_i2i16(b, src[0]);
+ case nir_op_i2i32:
+ return lower_i2i32(b, src[0]);
+ case nir_op_i2i64:
+ return lower_i2i64(b, src[0]);
+ case nir_op_u2u8:
+ return lower_u2u8(b, src[0]);
+ case nir_op_u2u16:
+ return lower_u2u16(b, src[0]);
+ case nir_op_u2u32:
+ return lower_u2u32(b, src[0]);
+ case nir_op_u2u64:
+ return lower_u2u64(b, src[0]);
+ case nir_op_bcsel:
+ return lower_bcsel64(b, src[0], src[1], src[2]);
+ case nir_op_ieq:
+ case nir_op_ine:
+ case nir_op_ult:
+ case nir_op_ilt:
+ case nir_op_uge:
+ case nir_op_ige:
+ return lower_int64_compare(b, alu->op, src[0], src[1]);
+ case nir_op_iadd:
+ return lower_iadd64(b, src[0], src[1]);
+ case nir_op_isub:
+ return lower_isub64(b, src[0], src[1]);
+ case nir_op_imin:
+ return lower_imin64(b, src[0], src[1]);
+ case nir_op_imax:
+ return lower_imax64(b, src[0], src[1]);
+ case nir_op_umin:
+ return lower_umin64(b, src[0], src[1]);
+ case nir_op_umax:
+ return lower_umax64(b, src[0], src[1]);
+ case nir_op_iabs:
+ return lower_iabs64(b, src[0]);
+ case nir_op_ineg:
+ return lower_ineg64(b, src[0]);
+ case nir_op_iand:
+ return lower_iand64(b, src[0], src[1]);
+ case nir_op_ior:
+ return lower_ior64(b, src[0], src[1]);
+ case nir_op_ixor:
+ return lower_ixor64(b, src[0], src[1]);
+ case nir_op_inot:
+ return lower_inot64(b, src[0]);
+ case nir_op_ishl:
+ return lower_ishl64(b, src[0], src[1]);
+ case nir_op_ishr:
+ return lower_ishr64(b, src[0], src[1]);
+ case nir_op_ushr:
+ return lower_ushr64(b, src[0], src[1]);
+ default:
+ unreachable("Invalid ALU opcode to lower");
+ }
}
static bool
continue;
nir_alu_instr *alu = nir_instr_as_alu(instr);
- assert(alu->dest.dest.is_ssa);
- if (alu->dest.dest.ssa.bit_size != 64)
- continue;
-
- b.cursor = nir_before_instr(instr);
-
- nir_ssa_def *new_def = NULL;
switch (alu->op) {
- case nir_op_imul:
- if (options & nir_lower_imul64) {
- new_def = lower_umul64(&b, nir_ssa_for_alu_src(&b, alu, 0),
- nir_ssa_for_alu_src(&b, alu, 1));
- }
+ case nir_op_i2b1:
+ case nir_op_i2i32:
+ case nir_op_u2u32:
+ assert(alu->src[0].src.is_ssa);
+ if (alu->src[0].src.ssa->bit_size != 64)
+ continue;
break;
-
- case nir_op_isign:
- if (options & nir_lower_isign64)
- new_def = lower_isign64(&b, nir_ssa_for_alu_src(&b, alu, 0));
+ case nir_op_bcsel:
+ assert(alu->src[1].src.is_ssa);
+ assert(alu->src[2].src.is_ssa);
+ assert(alu->src[1].src.ssa->bit_size ==
+ alu->src[2].src.ssa->bit_size);
+ if (alu->src[1].src.ssa->bit_size != 64)
+ continue;
break;
-
- case nir_op_udiv:
- if (options & nir_lower_divmod64) {
- new_def = lower_udiv64(&b, nir_ssa_for_alu_src(&b, alu, 0),
- nir_ssa_for_alu_src(&b, alu, 1));
- }
+ case nir_op_ieq:
+ case nir_op_ine:
+ case nir_op_ult:
+ case nir_op_ilt:
+ case nir_op_uge:
+ case nir_op_ige:
+ assert(alu->src[0].src.is_ssa);
+ assert(alu->src[1].src.is_ssa);
+ assert(alu->src[0].src.ssa->bit_size ==
+ alu->src[1].src.ssa->bit_size);
+ if (alu->src[0].src.ssa->bit_size != 64)
+ continue;
break;
-
- case nir_op_idiv:
- if (options & nir_lower_divmod64) {
- new_def = lower_idiv64(&b, nir_ssa_for_alu_src(&b, alu, 0),
- nir_ssa_for_alu_src(&b, alu, 1));
- }
- break;
-
- case nir_op_umod:
- if (options & nir_lower_divmod64) {
- new_def = lower_umod64(&b, nir_ssa_for_alu_src(&b, alu, 0),
- nir_ssa_for_alu_src(&b, alu, 1));
- }
- break;
-
- case nir_op_imod:
- if (options & nir_lower_divmod64) {
- new_def = lower_imod64(&b, nir_ssa_for_alu_src(&b, alu, 0),
- nir_ssa_for_alu_src(&b, alu, 1));
- }
+ default:
+ assert(alu->dest.dest.is_ssa);
+ if (alu->dest.dest.ssa.bit_size != 64)
+ continue;
break;
+ }
- default:
- /* Not lowered */
+ if (!(options & opcode_to_options_mask(alu->op)))
continue;
- }
- if (new_def) {
- nir_ssa_def_rewrite_uses(&alu->dest.dest.ssa,
- nir_src_for_ssa(new_def));
- nir_instr_remove(&alu->instr);
- progress = true;
- }
+ b.cursor = nir_before_instr(instr);
+
+ nir_ssa_def *lowered = lower_int64_alu_instr(&b, alu);
+ nir_ssa_def_rewrite_uses(&alu->dest.dest.ssa,
+ nir_src_for_ssa(lowered));
+ nir_instr_remove(&alu->instr);
+ progress = true;
}
}
+ if (progress) {
+ nir_metadata_preserve(impl, nir_metadata_none);
+ } else {
+#ifndef NDEBUG
+ impl->valid_metadata &= ~nir_metadata_not_properly_reset;
+#endif
+ }
+
return progress;
}
projects / mesa.git / blobdiff