From: Robin Dapp <rd...@ventanamicro.com>
This patch adds a shuffle_slide_patterns to expand_vec_perm_const.
It recognizes permutations like
{0, 1, 4, 5}
or
{2, 3, 6, 7}
which can be constructed by a slideup or slidedown of one of the vectors
into the other one.
gcc/ChangeLog:
* config/riscv/riscv-v.cc (shuffle_slide_patterns): New.
(expand_vec_perm_const_1): Call new function.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide-run.c: New test.
* gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide.c: New test.
RISC-V: Add interleave pattern.
This patch adds efficient handling of interleaving patterns like
[0 4 1 5] to vec_perm_const. It is implemented by a slideup and a
gather.
gcc/ChangeLog:
* config/riscv/riscv-v.cc (shuffle_interleave_patterns): New
function.
(expand_vec_perm_const_1): Use new function.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave-run.c: New
test.
* gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave.c: New test.
RISC-V: Add even/odd vec_perm_const pattern.
This adds handling for even/odd patterns.
gcc/ChangeLog:
* config/riscv/riscv-v.cc (shuffle_evenodd_patterns): New
function.
(expand_vec_perm_const_1): Use new function.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd-run.c: New
test.
* gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd.c: New test.
RISC-V: Improve slide1up pattern.
This patch adds a second variant to implement the extract/slide1up
pattern. In order to do a permutation like
<3, 4, 5, 6> from vectors <0, 1, 2, 3> and <4, 5, 6, 7>
we currently extract <3> from the first vector and re-insert it into the
second vector. Unless register-file crossing latency is essentially
zero it should be preferable to first slide the second vector up by
one, then slide down the first vector by (nunits - 1).
gcc/ChangeLog:
* config/riscv/riscv-protos.h (riscv_register_move_cost):
Export.
* config/riscv/riscv-v.cc (shuffle_extract_and_slide1up_patterns):
Add slideup/slidedown variant.
* config/riscv/riscv.cc (riscv_secondary_memory_needed): Remove
static.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/autovec/pr112599-2.c: Adjust test
expectation.
varasm: Use PRECISION instead of SIZE [PR123456].
When optimizing the constant pool we currently don't handle
vector mask modes properly. While emitting two compress
patterns {1, 0, 1, 0} (V4BI) and {1, 0, 1, 0, 1, 0, 1, 0} (V8BI)
I noticed that they would end up with the same constant pool entry
of "10" (={1, 0, 1, 0}).
This is because we compare MODE_SIZE elements instead of MODE_PRECISION
so the hash of both constants would be identical.
This patch uses GET_MODE_PRECISION instead and also fixes one similar
instance in simplify-rtx.
gcc/ChangeLog:
* simplify-rtx.cc (native_encode_rtx): Use GET_MODE_PRECISION.
* varasm.cc (optimize_constant_pool): Ditto.
---
gcc/config/riscv/riscv-protos.h | 1 +
gcc/config/riscv/riscv-v.cc | 287 +++++++++++++++++-
gcc/config/riscv/riscv.cc | 18 +-
gcc/simplify-rtx.cc | 2 +-
.../gcc.target/riscv/rvv/autovec/pr112599-2.c | 2 +-
.../autovec/vls-vlmax/shuffle-evenodd-run.c | 122 ++++++++
.../rvv/autovec/vls-vlmax/shuffle-evenodd.c | 68 +++++
.../vls-vlmax/shuffle-interleave-run.c | 122 ++++++++
.../autovec/vls-vlmax/shuffle-interleave.c | 69 +++++
.../rvv/autovec/vls-vlmax/shuffle-slide-run.c | 266 ++++++++++++++++
.../rvv/autovec/vls-vlmax/shuffle-slide.c | 207 +++++++++++++
gcc/varasm.cc | 2 +-
12 files changed, 1152 insertions(+), 14 deletions(-)
create mode 100644
gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd-run.c
create mode 100644
gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd.c
create mode 100644
gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave-run.c
create mode 100644
gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave.c
create mode 100644
gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide-run.c
create mode 100644
gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide.c
diff --git a/gcc/config/riscv/riscv-protos.h b/gcc/config/riscv/riscv-protos.h
index 500b357f6eb..ecb4e64cdf8 100644
--- a/gcc/config/riscv/riscv-protos.h
+++ b/gcc/config/riscv/riscv-protos.h
@@ -139,6 +139,7 @@ extern void riscv_expand_ussub (rtx, rtx, rtx);
extern void riscv_expand_sssub (rtx, rtx, rtx);
extern void riscv_expand_ustrunc (rtx, rtx);
extern void riscv_expand_sstrunc (rtx, rtx);
+extern int riscv_register_move_cost (machine_mode, reg_class_t, reg_class_t);
#ifdef RTX_CODE
extern void riscv_expand_int_scc (rtx, enum rtx_code, rtx, rtx, bool
*invert_ptr = 0);
diff --git a/gcc/config/riscv/riscv-v.cc b/gcc/config/riscv/riscv-v.cc
index a0e22b6454b..76ee95d5b21 100644
--- a/gcc/config/riscv/riscv-v.cc
+++ b/gcc/config/riscv/riscv-v.cc
@@ -3377,6 +3377,245 @@ shuffle_compress_patterns (struct expand_vec_perm_d *d)
return true;
}
+/* Recognize patterns like [4 5 6 7 12 13 14 15] where either the lower
+ or the higher parts of both vectors are combined into one. */
+
+static bool
+shuffle_slide_patterns (struct expand_vec_perm_d *d)
+{
+ machine_mode vmode = d->vmode;
+ poly_int64 vec_len = d->perm.length ();
+
+ if (!vec_len.is_constant ())
+ return false;
+
+ int vlen = vec_len.to_constant ();
+ if (vlen < 4)
+ return false;
+
+ if (d->one_vector_p)
+ return false;
+
+ /* For a slideup OP0 can stay, for a slidedown OP1 can.
+ The former requires that the first element of the permutation
+ is the first element of OP0, the latter that the last permutation
+ element is the last element of OP1. */
+ bool slideup = false;
+ bool slidedown = false;
+
+ /* For a slideup the permutation must start at OP0's first element. */
+ if (known_eq (d->perm[0], 0))
+ slideup = true;
+
+ /* For a slidedown the permutation must end at OP1's last element. */
+ if (known_eq (d->perm[vlen - 1], 2 * vlen - 1))
+ slidedown = true;
+
+ if (slideup && slidedown)
+ return false;
+
+ if (!slideup && !slidedown)
+ return false;
+
+ /* Check for a monotonic sequence with one pivot. */
+ int pivot = -1;
+ for (int i = 0; i < vlen; i++)
+ {
+ if (pivot == -1 && known_ge (d->perm[i], vec_len))
+ pivot = i;
+ if (i > 0 && i != pivot
+ && maybe_ne (d->perm[i], d->perm[i - 1] + 1))
+ return false;
+ }
+
+ if (pivot == -1)
+ return false;
+
+ /* For a slideup OP1's part (to be slid up) must be a low part,
+ i.e. starting with its first element. */
+ if (slideup && maybe_ne (d->perm[pivot], vlen))
+ return false;
+
+ /* For a slidedown OP0's part (to be slid down) must be a high part,
+ i.e. ending with its last element. */
+ if (slidedown && maybe_ne (d->perm[pivot - 1], vlen - 1))
+ return false;
+
+ /* Success! */
+ if (d->testing_p)
+ return true;
+
+ /* PIVOT is the start of the lower/higher part of OP1 or OP2.
+ For a slideup it indicates how many elements of OP1 to
+ skip/slide over. For a slidedown it indicates how long
+ OP1's high part is, while VLEN - PIVOT is the amount to slide. */
+ int slide_cnt = slideup ? pivot : vlen - pivot;
+ insn_code icode;
+ if (slideup)
+ {
+ /* No need for a vector length because we slide up until the
+ end of OP1 anyway. */
+ rtx ops[] = {d->target, d->op0, d->op1, gen_int_mode (slide_cnt, Pmode)};
+ icode = code_for_pred_slide (UNSPEC_VSLIDEUP, vmode);
+ emit_vlmax_insn (icode, SLIDEUP_OP_MERGE, ops);
+ }
+ else
+ {
+ /* Here we need a length because we slide to the beginning of OP1
+ leaving the remaining elements undisturbed. */
+ int len = pivot;
+ rtx ops[] = {d->target, d->op1, d->op0,
+ gen_int_mode (slide_cnt, Pmode)};
+ icode = code_for_pred_slide (UNSPEC_VSLIDEDOWN, vmode);
+ emit_nonvlmax_insn (icode, BINARY_OP_TUMA, ops,
+ gen_int_mode (len, Pmode));
+ }
+
+ return true;
+}
+
+/* Recognize interleaving patterns like [0 4 1 5]. */
+
+static bool
+shuffle_interleave_patterns (struct expand_vec_perm_d *d)
+{
+ machine_mode vmode = d->vmode;
+ machine_mode sel_mode = related_int_vector_mode (vmode).require ();
+ poly_int64 vec_len = d->perm.length ();
+ int n_patterns = d->perm.encoding ().npatterns ();
+
+ if (!vec_len.is_constant ())
+ return false;
+
+ if (n_patterns != 2)
+ return false;
+
+ int vlen = vec_len.to_constant ();
+
+ if (vlen < 4 || vlen > 64)
+ return false;
+
+ if (d->one_vector_p)
+ return false;
+
+ bool low = true;
+ if (d->perm.series_p (0, 2, 0, 1)
+ && d->perm.series_p (1, 2, vlen, 1))
+ low = true;
+ else if (d->perm.series_p (0, 2, vlen / 2, 1)
+ && d->perm.series_p (1, 2, vlen + vlen / 2, 1))
+ low = false;
+ else
+ return false;
+
+ vec_perm_builder sel (vlen, 2, 1);
+ sel.safe_grow (vlen);
+ int cnt = 0;
+ for (int i = 0; i < vlen; i += 2)
+ {
+ sel[i] = cnt;
+ sel[i + 1] = cnt + vlen / 2;
+ cnt++;
+ }
+
+ vec_perm_indices indices (sel, 2, vlen);
+
+ if (vlen != (int)indices.length ().to_constant ())
+ return false;
+
+ /* Success! */
+ if (d->testing_p)
+ return true;
+
+ int slide_cnt = vlen / 2;
+ rtx tmp = gen_reg_rtx (vmode);
+
+ if (low)
+ {
+ /* No need for a vector length because we slide up until the
+ end of OP1 anyway. */
+ rtx ops[] = {tmp, d->op0, d->op1, gen_int_mode (slide_cnt, Pmode)};
+ insn_code icode = code_for_pred_slide (UNSPEC_VSLIDEUP, vmode);
+ emit_vlmax_insn (icode, SLIDEUP_OP_MERGE, ops);
+ }
+ else
+ {
+ rtx ops[] = {tmp, d->op1, d->op0, gen_int_mode (slide_cnt, Pmode)};
+ insn_code icode = code_for_pred_slide (UNSPEC_VSLIDEDOWN, vmode);
+ emit_nonvlmax_insn (icode, BINARY_OP_TUMA, ops,
+ gen_int_mode (slide_cnt, Pmode));
+ }
+
+ rtx sel_rtx = vec_perm_indices_to_rtx (sel_mode, indices);
+ emit_vlmax_gather_insn (gen_lowpart (vmode, d->target), tmp, sel_rtx);
+
+ return true;
+}
+
+
+/* Recognize even/odd patterns like [0 2 4 6]. We use two compress
+ and one slideup.j */
+
+static bool
+shuffle_evenodd_patterns (struct expand_vec_perm_d *d)
+{
+ machine_mode vmode = d->vmode;
+ poly_int64 vec_len = d->perm.length ();
+ int n_patterns = d->perm.encoding ().npatterns ();
+
+ if (n_patterns != 1)
+ return false;
+
+ if (!vec_len.is_constant ())
+ return false;
+
+ int vlen = vec_len.to_constant ();
+ if (vlen < 4 || vlen > 64)
+ return false;
+
+ if (d->one_vector_p)
+ return false;
+
+ bool even = true;
+ if (!d->perm.series_p (0, 1, 0, 2))
+ {
+ even = false;
+ if (!d->perm.series_p (0, 1, 1, 2))
+ return false;
+ }
+
+ /* Success! */
+ if (d->testing_p)
+ return true;
+
+ machine_mode mask_mode = get_mask_mode (vmode);
+ rvv_builder builder (mask_mode, vlen, 1);
+ int bit = even ? 0 : 1;
+ for (int i = 0; i < vlen; i++)
+ {
+ bit ^= 1;
+ if (bit)
+ builder.quick_push (CONST1_RTX (BImode));
+ else
+ builder.quick_push (CONST0_RTX (BImode));
+ }
+ rtx mask = force_reg (mask_mode, builder.build ());
+
+ insn_code icode = code_for_pred_compress (vmode);
+ rtx ops1[] = {d->target, d->op0, mask};
+ emit_vlmax_insn (icode, COMPRESS_OP, ops1);
+
+ rtx tmp2 = gen_reg_rtx (vmode);
+ rtx ops2[] = {tmp2, d->op1, mask};
+ emit_vlmax_insn (icode, COMPRESS_OP, ops2);
+
+ rtx ops[] = {d->target, d->target, tmp2, gen_int_mode (vlen / 2, Pmode)};
+ icode = code_for_pred_slide (UNSPEC_VSLIDEUP, vmode);
+ emit_vlmax_insn (icode, SLIDEUP_OP_MERGE, ops);
+
+ return true;
+}
+
/* Recognize decompress patterns:
1. VEC_PERM_EXPR op0 and op1
@@ -3561,17 +3800,39 @@ shuffle_extract_and_slide1up_patterns (struct
expand_vec_perm_d *d)
if (d->testing_p)
return true;
- /* Extract the last element of the first vector. */
- scalar_mode smode = GET_MODE_INNER (d->vmode);
- rtx tmp = gen_reg_rtx (smode);
- emit_vec_extract (tmp, d->op0, gen_int_mode (nunits - 1, Pmode));
+ int scalar_cost = riscv_register_move_cost (d->vmode, V_REGS, GR_REGS)
+ + riscv_register_move_cost (d->vmode, GR_REGS, V_REGS) + 2;
+ int slide_cost = 2;
+
+ if (slide_cost < scalar_cost)
+ {
+ /* This variant should always be preferable because we just need two
+ slides. The extract-variant also requires two slides but additionally
+ pays the latency for register-file crossing. */
+ rtx tmp = gen_reg_rtx (d->vmode);
+ rtx ops[] = {tmp, d->op1, gen_int_mode (1, Pmode)};
+ insn_code icode = code_for_pred_slide (UNSPEC_VSLIDEUP, d->vmode);
+ emit_vlmax_insn (icode, BINARY_OP, ops);
+
+ rtx ops2[] = {d->target, tmp, d->op0, gen_int_mode (nunits - 1, Pmode)};
+ icode = code_for_pred_slide (UNSPEC_VSLIDEDOWN, d->vmode);
+ emit_nonvlmax_insn (icode, BINARY_OP_TUMA, ops2, gen_int_mode (1,
Pmode));
+ }
+ else
+ {
+ /* Extract the last element of the first vector. */
+ scalar_mode smode = GET_MODE_INNER (d->vmode);
+ rtx tmp = gen_reg_rtx (smode);
+ emit_vec_extract (tmp, d->op0, gen_int_mode (nunits - 1, Pmode));
+
+ /* Insert the scalar into element 0. */
+ unsigned int unspec
+ = FLOAT_MODE_P (d->vmode) ? UNSPEC_VFSLIDE1UP : UNSPEC_VSLIDE1UP;
+ insn_code icode = code_for_pred_slide (unspec, d->vmode);
+ rtx ops[] = {d->target, d->op1, tmp};
+ emit_vlmax_insn (icode, BINARY_OP, ops);
+ }
- /* Insert the scalar into element 0. */
- unsigned int unspec
- = FLOAT_MODE_P (d->vmode) ? UNSPEC_VFSLIDE1UP : UNSPEC_VSLIDE1UP;
- insn_code icode = code_for_pred_slide (unspec, d->vmode);
- rtx ops[] = {d->target, d->op1, tmp};
- emit_vlmax_insn (icode, BINARY_OP, ops);
return true;
}
@@ -3691,6 +3952,12 @@ expand_vec_perm_const_1 (struct expand_vec_perm_d *d)
return true;
if (shuffle_consecutive_patterns (d))
return true;
+ if (shuffle_slide_patterns (d))
+ return true;
+ if (shuffle_interleave_patterns (d))
+ return true;
+ if (shuffle_evenodd_patterns (d))
+ return true;
if (shuffle_compress_patterns (d))
return true;
if (shuffle_decompress_patterns (d))
diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 7694954c4c5..62b80fefedd 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -9464,7 +9464,7 @@ riscv_secondary_memory_needed (machine_mode mode,
reg_class_t class1,
/* Implement TARGET_REGISTER_MOVE_COST. */
-static int
+int
riscv_register_move_cost (machine_mode mode,
reg_class_t from, reg_class_t to)
{
@@ -9472,6 +9472,22 @@ riscv_register_move_cost (machine_mode mode,
(from == GR_REGS && to == FP_REGS))
return tune_param->fmv_cost;
+ if (from == V_REGS)
+ {
+ if (to == GR_REGS)
+ return get_vector_costs ()->regmove->VR2GR;
+ else if (to == FP_REGS)
+ return get_vector_costs ()->regmove->VR2FR;
+ }
+
+ if (to == V_REGS)
+ {
+ if (from == GR_REGS)
+ return get_vector_costs ()->regmove->GR2VR;
+ else if (from == FP_REGS)
+ return get_vector_costs ()->regmove->FR2VR;
+ }
+
return riscv_secondary_memory_needed (mode, from, to) ? 8 : 2;
}
diff --git a/gcc/simplify-rtx.cc b/gcc/simplify-rtx.cc
index d05efac20dc..d00e5521059 100644
--- a/gcc/simplify-rtx.cc
+++ b/gcc/simplify-rtx.cc
@@ -7404,7 +7404,7 @@ native_encode_rtx (machine_mode mode, rtx x,
vec<target_unit> &bytes,
/* Make sure that the region is in range. */
unsigned int end_byte = first_byte + num_bytes;
- unsigned int mode_bytes = GET_MODE_SIZE (smode);
+ unsigned int mode_bytes = GET_MODE_PRECISION (smode);
gcc_assert (end_byte <= mode_bytes);
if (CONST_SCALAR_INT_P (x))
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/pr112599-2.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/pr112599-2.c
index fd87565b054..79d87196bf7 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/pr112599-2.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/pr112599-2.c
@@ -48,4 +48,4 @@ foo(void)
}
/* { dg-final { scan-assembler-not {vrgather} } } */
-/* { dg-final { scan-assembler-times {vslide1up\.vx} 1 } } */
+/* { dg-final { scan-assembler {vslide} } } */
diff --git
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd-run.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd-run.c
new file mode 100644
index 00000000000..c0760e5ed30
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd-run.c
@@ -0,0 +1,122 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target riscv_v_ok } */
+/* { dg-add-options riscv_v } */
+/* { dg-additional-options "-O3 -mrvv-max-lmul=m8 -std=gnu99" } */
+
+#include "shuffle-evenodd.c"
+
+#define SERIES_2(x, y) (x), (x + 1)
+#define SERIES_4(x, y) SERIES_2 (x, y), SERIES_2 (x + 2, y)
+#define SERIES_8(x, y) SERIES_4 (x, y), SERIES_4 (x + 4, y)
+#define SERIES_16(x, y) SERIES_8 (x, y), SERIES_8 (x + 8, y)
+#define SERIES_32(x, y) SERIES_16 (x, y), SERIES_16 (x + 16, y)
+#define SERIES_64(x, y) SERIES_32 (x, y), SERIES_32 (x + 32, y)
+
+#define comp(a, b, n)
\
+ for (unsigned i = 0; i < n; ++i)
\
+ if ((a)[i] != (b)[i])
\
+ __builtin_abort ();
+
+#define CHECK1(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check1_##TYPE ()
\
+ {
\
+ TYPE v0 = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v1 = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref = (TYPE){MASKE_##NUNITS (0, NUNITS)};
\
+ TYPE res;
\
+ permute1_##TYPE (v0, v1, &res);
\
+ comp (res, ref, NUNITS);
\
+ }
+
+#define CHECK2(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check2_##TYPE () \
+ {
\
+ TYPE v0 = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v1 = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref = (TYPE){MASKO_##NUNITS (0, NUNITS)};
\
+ TYPE res;
\
+ permute2_##TYPE (v0, v1, &res);
\
+ comp (res, ref, NUNITS);
\
+ }
+
+#define CHECK_ALL(T)
\
+ T (vnx4qi, 4)
\
+ T (vnx8qi, 8)
\
+ T (vnx16qi, 16)
\
+ T (vnx32qi, 32)
\
+ T (vnx64qi, 64)
\
+ T (vnx4hi, 4)
\
+ T (vnx8hi, 8)
\
+ T (vnx16hi, 16)
\
+ T (vnx32hi, 32)
\
+ T (vnx64hi, 64)
\
+ T (vnx4si, 4)
\
+ T (vnx8si, 8)
\
+ T (vnx16si, 16)
\
+ T (vnx32si, 32)
\
+ T (vnx4di, 4)
\
+ T (vnx8di, 8)
\
+ T (vnx16di, 16)
\
+ T (vnx4sf, 4)
\
+ T (vnx8sf, 8)
\
+ T (vnx16sf, 16)
\
+ T (vnx32sf, 32)
\
+ T (vnx4df, 4)
\
+ T (vnx8df, 8)
\
+ T (vnx16df, 16)
+
+CHECK_ALL (CHECK1)
+CHECK_ALL (CHECK2)
+
+int
+main ()
+{
+ check1_vnx4qi ();
+ check1_vnx8qi ();
+ check1_vnx16qi ();
+ check1_vnx32qi ();
+ check1_vnx64qi ();
+ check1_vnx4hi ();
+ check1_vnx8hi ();
+ check1_vnx16hi ();
+ check1_vnx32hi ();
+ check1_vnx64hi ();
+ check1_vnx4si ();
+ check1_vnx8si ();
+ check1_vnx16si ();
+ check1_vnx32si ();
+ check1_vnx4di ();
+ check1_vnx8di ();
+ check1_vnx16di ();
+ check1_vnx4sf ();
+ check1_vnx8sf ();
+ check1_vnx16sf ();
+ check1_vnx32sf ();
+ check1_vnx4df ();
+ check1_vnx8df ();
+ check1_vnx16df ();
+ check2_vnx4qi ();
+ check2_vnx8qi ();
+ check2_vnx16qi ();
+ check2_vnx32qi ();
+ check2_vnx64qi ();
+ check2_vnx4hi ();
+ check2_vnx8hi ();
+ check2_vnx16hi ();
+ check2_vnx32hi ();
+ check2_vnx64hi ();
+ check2_vnx4si ();
+ check2_vnx8si ();
+ check2_vnx16si ();
+ check2_vnx32si ();
+ check2_vnx4di ();
+ check2_vnx8di ();
+ check2_vnx16di ();
+ check2_vnx4sf ();
+ check2_vnx8sf ();
+ check2_vnx16sf ();
+ check2_vnx32sf ();
+ check2_vnx4df ();
+ check2_vnx8df ();
+ check2_vnx16df ();
+}
diff --git
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd.c
new file mode 100644
index 00000000000..21570d7986e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-evenodd.c
@@ -0,0 +1,68 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -march=rv64gcv -mrvv-max-lmul=m8" } */
+
+#include "perm.h"
+
+#define MASKE_2(x, y) (x), (x + 2)
+#define MASKE_4(x, y) MASKE_2 (x, y), MASKE_2 (x + 4, y)
+#define MASKE_8(x, y) MASKE_4 (x, y), MASKE_4 (x + 8, y)
+#define MASKE_16(x, y) MASKE_8 (x, y), MASKE_8 (x + 16, y)
+#define MASKE_32(x, y) MASKE_16 (x, y), MASKE_16 (x + 32, y)
+#define MASKE_64(x, y) MASKE_32 (x, y), MASKE_32 (x + 64, y)
+
+#define MASKO_2(x, y) (x + 1), (x + 3)
+#define MASKO_4(x, y) MASKO_2 (x, y), MASKO_2 (x + 4, y)
+#define MASKO_8(x, y) MASKO_4 (x, y), MASKO_4 (x + 8, y)
+#define MASKO_16(x, y) MASKO_8 (x, y), MASKO_8 (x + 16, y)
+#define MASKO_32(x, y) MASKO_16 (x, y), MASKO_16 (x + 32, y)
+#define MASKO_64(x, y) MASKO_32 (x, y), MASKO_32 (x + 64, y)
+
+#define PERMUTE1(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute1_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASKE_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE2(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute2_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASKO_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define TEST_ALL(T)
\
+ T (vnx4qi, 4)
\
+ T (vnx8qi, 8)
\
+ T (vnx16qi, 16)
\
+ T (vnx32qi, 32)
\
+ T (vnx64qi, 64)
\
+ T (vnx4hi, 4)
\
+ T (vnx8hi, 8)
\
+ T (vnx16hi, 16)
\
+ T (vnx32hi, 32)
\
+ T (vnx64hi, 64)
\
+ T (vnx4si, 4)
\
+ T (vnx8si, 8)
\
+ T (vnx16si, 16)
\
+ T (vnx32si, 32)
\
+ T (vnx4di, 4)
\
+ T (vnx8di, 8)
\
+ T (vnx16di, 16)
\
+ T (vnx4sf, 4)
\
+ T (vnx8sf, 8)
\
+ T (vnx16sf, 16)
\
+ T (vnx32sf, 32)
\
+ T (vnx4df, 4)
\
+ T (vnx8df, 8)
\
+ T (vnx16df, 16)
+
+TEST_ALL (PERMUTE1)
+TEST_ALL (PERMUTE2)
+
+/* { dg-final { scan-assembler-times "vslideup" 48 } } */
+/* { dg-final { scan-assembler-times "vcompress" 96 } } */
diff --git
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave-run.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave-run.c
new file mode 100644
index 00000000000..57748d95362
--- /dev/null
+++
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave-run.c
@@ -0,0 +1,122 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target riscv_v_ok } */
+/* { dg-add-options riscv_v } */
+/* { dg-additional-options "-O3 -mrvv-max-lmul=m8 -std=gnu99" } */
+
+#include "shuffle-interleave.c"
+
+#define SERIES_2(x, y) (x), (x + 1)
+#define SERIES_4(x, y) SERIES_2 (x, y), SERIES_2 (x + 2, y)
+#define SERIES_8(x, y) SERIES_4 (x, y), SERIES_4 (x + 4, y)
+#define SERIES_16(x, y) SERIES_8 (x, y), SERIES_8 (x + 8, y)
+#define SERIES_32(x, y) SERIES_16 (x, y), SERIES_16 (x + 16, y)
+#define SERIES_64(x, y) SERIES_32 (x, y), SERIES_32 (x + 32, y)
+
+#define comp(a, b, n)
\
+ for (unsigned i = 0; i < n; ++i)
\
+ if ((a)[i] != (b)[i])
\
+ __builtin_abort ();
+
+#define CHECK1(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check1_##TYPE ()
\
+ {
\
+ TYPE v0 = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v1 = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref = (TYPE){MASKL_##NUNITS (0, NUNITS)};
\
+ TYPE res;
\
+ permute1_##TYPE (v0, v1, &res);
\
+ comp (res, ref, NUNITS);
\
+ }
+
+#define CHECK2(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check2_##TYPE () \
+ {
\
+ TYPE v0 = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v1 = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref = (TYPE){MASKH_##NUNITS (0, NUNITS)};
\
+ TYPE res;
\
+ permute2_##TYPE (v0, v1, &res);
\
+ comp (res, ref, NUNITS);
\
+ }
+
+#define CHECK_ALL(T)
\
+ T (vnx4qi, 4)
\
+ T (vnx8qi, 8)
\
+ T (vnx16qi, 16)
\
+ T (vnx32qi, 32)
\
+ T (vnx64qi, 64)
\
+ T (vnx4hi, 4)
\
+ T (vnx8hi, 8)
\
+ T (vnx16hi, 16)
\
+ T (vnx32hi, 32)
\
+ T (vnx64hi, 64)
\
+ T (vnx4si, 4)
\
+ T (vnx8si, 8)
\
+ T (vnx16si, 16)
\
+ T (vnx32si, 32)
\
+ T (vnx4di, 4)
\
+ T (vnx8di, 8)
\
+ T (vnx16di, 16)
\
+ T (vnx4sf, 4)
\
+ T (vnx8sf, 8)
\
+ T (vnx16sf, 16)
\
+ T (vnx32sf, 32)
\
+ T (vnx4df, 4)
\
+ T (vnx8df, 8)
\
+ T (vnx16df, 16)
+
+CHECK_ALL (CHECK1)
+CHECK_ALL (CHECK2)
+
+int
+main ()
+{
+ check1_vnx4qi ();
+ check1_vnx8qi ();
+ check1_vnx16qi ();
+ check1_vnx32qi ();
+ check1_vnx64qi ();
+ check1_vnx4hi ();
+ check1_vnx8hi ();
+ check1_vnx16hi ();
+ check1_vnx32hi ();
+ check1_vnx64hi ();
+ check1_vnx4si ();
+ check1_vnx8si ();
+ check1_vnx16si ();
+ check1_vnx32si ();
+ check1_vnx4di ();
+ check1_vnx8di ();
+ check1_vnx16di ();
+ check1_vnx4sf ();
+ check1_vnx8sf ();
+ check1_vnx16sf ();
+ check1_vnx32sf ();
+ check1_vnx4df ();
+ check1_vnx8df ();
+ check1_vnx16df ();
+ check2_vnx4qi ();
+ check2_vnx8qi ();
+ check2_vnx16qi ();
+ check2_vnx32qi ();
+ check2_vnx64qi ();
+ check2_vnx4hi ();
+ check2_vnx8hi ();
+ check2_vnx16hi ();
+ check2_vnx32hi ();
+ check2_vnx64hi ();
+ check2_vnx4si ();
+ check2_vnx8si ();
+ check2_vnx16si ();
+ check2_vnx32si ();
+ check2_vnx4di ();
+ check2_vnx8di ();
+ check2_vnx16di ();
+ check2_vnx4sf ();
+ check2_vnx8sf ();
+ check2_vnx16sf ();
+ check2_vnx32sf ();
+ check2_vnx4df ();
+ check2_vnx8df ();
+ check2_vnx16df ();
+}
diff --git
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave.c
new file mode 100644
index 00000000000..3e241f01871
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-interleave.c
@@ -0,0 +1,69 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -march=rv64gcv -mrvv-max-lmul=m8" } */
+
+#include "perm.h"
+
+#define MASKL_2(x, y) (x), (x + y)
+#define MASKL_4(x, y) MASKL_2 (x, y), MASKL_2 (x + 1, y)
+#define MASKL_8(x, y) MASKL_4 (x, y), MASKL_4 (x + 2, y)
+#define MASKL_16(x, y) MASKL_8 (x, y), MASKL_8 (x + 4, y)
+#define MASKL_32(x, y) MASKL_16 (x, y), MASKL_16 (x + 8, y)
+#define MASKL_64(x, y) MASKL_32 (x, y), MASKL_32 (x + 16, y)
+
+#define MASKH_2(x, y) (x + y / 2), (x + y / 2 + y)
+#define MASKH_4(x, y) MASKH_2 (x, y), MASKH_2 (x + 1, y)
+#define MASKH_8(x, y) MASKH_4 (x, y), MASKH_4 (x + 2, y)
+#define MASKH_16(x, y) MASKH_8 (x, y), MASKH_8 (x + 4, y)
+#define MASKH_32(x, y) MASKH_16 (x, y), MASKH_16 (x + 8, y)
+#define MASKH_64(x, y) MASKH_32 (x, y), MASKH_32 (x + 16, y)
+
+#define PERMUTE1(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute1_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASKL_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE2(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute2_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASKH_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define TEST_ALL(T)
\
+ T (vnx4qi, 4)
\
+ T (vnx8qi, 8)
\
+ T (vnx16qi, 16)
\
+ T (vnx32qi, 32)
\
+ T (vnx64qi, 64)
\
+ T (vnx4hi, 4)
\
+ T (vnx8hi, 8)
\
+ T (vnx16hi, 16)
\
+ T (vnx32hi, 32)
\
+ T (vnx64hi, 64)
\
+ T (vnx4si, 4)
\
+ T (vnx8si, 8)
\
+ T (vnx16si, 16)
\
+ T (vnx32si, 32)
\
+ T (vnx4di, 4)
\
+ T (vnx8di, 8)
\
+ T (vnx16di, 16)
\
+ T (vnx4sf, 4)
\
+ T (vnx8sf, 8)
\
+ T (vnx16sf, 16)
\
+ T (vnx32sf, 32)
\
+ T (vnx4df, 4)
\
+ T (vnx8df, 8)
\
+ T (vnx16df, 16)
+
+TEST_ALL (PERMUTE1)
+TEST_ALL (PERMUTE2)
+
+/* { dg-final { scan-assembler-times "vslideup" 24 } } */
+/* { dg-final { scan-assembler-times "vslidedown" 24 } } */
+/* { dg-final { scan-assembler-times "vrgather" 48 } } */
diff --git
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide-run.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide-run.c
new file mode 100644
index 00000000000..50cba3fc8f7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide-run.c
@@ -0,0 +1,266 @@
+/* { dg-do run } */
+/* { dg-require-effective-target riscv_v_ok } */
+/* { dg-add-options riscv_v } */
+/* { dg-additional-options "-O3 -std=gnu99 -mrvv-max-lmul=m8 -Wno-overflow" }
*/
+
+#include "shuffle-slide.c"
+
+#define comp(a, b, n)
\
+ for (unsigned i = 0; i < n; ++i)
\
+ if ((a)[i] != (b)[i])
\
+ __builtin_abort ();
+
+#define CHECK1(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check1_##TYPE ()
\
+ {
\
+ TYPE v10_##TYPE = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v11_##TYPE = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref1_##TYPE = (TYPE){MASK1_##NUNITS (0, NUNITS)};
\
+ TYPE res1_##TYPE;
\
+ permute1_##TYPE (v10_##TYPE, v11_##TYPE, &res1_##TYPE);
\
+ comp (res1_##TYPE, ref1_##TYPE, NUNITS);
\
+ }
+
+#define CHECK2(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check2_##TYPE ()
\
+ {
\
+ TYPE v20_##TYPE = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v21_##TYPE = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref2_##TYPE = (TYPE){MASK1D_##NUNITS (0, NUNITS)};
\
+ TYPE res2_##TYPE;
\
+ permute2_##TYPE (v20_##TYPE, v21_##TYPE, &res2_##TYPE);
\
+ comp (res2_##TYPE, ref2_##TYPE, NUNITS);
\
+ }
+
+#define CHECK3(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check3_##TYPE ()
\
+ {
\
+ TYPE v30_##TYPE = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v31_##TYPE = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref3_##TYPE = (TYPE){MASK2U_##NUNITS (0, NUNITS)};
\
+ TYPE res3_##TYPE;
\
+ permute3_##TYPE (v30_##TYPE, v31_##TYPE, &res3_##TYPE);
\
+ comp (res3_##TYPE, ref3_##TYPE, NUNITS);
\
+ }
+
+#define CHECK4(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check4_##TYPE ()
\
+ {
\
+ TYPE v40_##TYPE = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v41_##TYPE = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref4_##TYPE = (TYPE){MASK3U_##NUNITS (0, NUNITS)};
\
+ TYPE res4_##TYPE;
\
+ permute4_##TYPE (v40_##TYPE, v41_##TYPE, &res4_##TYPE);
\
+ comp (res4_##TYPE, ref4_##TYPE, NUNITS);
\
+ }
+
+#define CHECK5(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check5_##TYPE ()
\
+ {
\
+ TYPE v50_##TYPE = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v51_##TYPE = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref5_##TYPE = (TYPE){MASK2D_##NUNITS (0, NUNITS)};
\
+ TYPE res5_##TYPE;
\
+ permute5_##TYPE (v50_##TYPE, v51_##TYPE, &res5_##TYPE);
\
+ comp (res5_##TYPE, ref5_##TYPE, NUNITS);
\
+ }
+
+#define CHECK6(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void check6_##TYPE ()
\
+ {
\
+ TYPE v60_##TYPE = (TYPE){SERIES_##NUNITS (0, NUNITS)};
\
+ TYPE v61_##TYPE = (TYPE){SERIES_##NUNITS (NUNITS, NUNITS)};
\
+ TYPE ref6_##TYPE = (TYPE){MASK3D_##NUNITS (0, NUNITS)};
\
+ TYPE res6_##TYPE;
\
+ permute6_##TYPE (v60_##TYPE, v61_##TYPE, &res6_##TYPE);
\
+ comp (res6_##TYPE, ref6_##TYPE, NUNITS);
\
+ }
+
+#define CHECK_ALL(T)
\
+ T (vnx4qi, 4)
\
+ T (vnx8qi, 8)
\
+ T (vnx16qi, 16)
\
+ T (vnx32qi, 32)
\
+ T (vnx64qi, 64)
\
+ T (vnx128qi, 128)
\
+ T (vnx4hi, 4)
\
+ T (vnx8hi, 8)
\
+ T (vnx16hi, 16)
\
+ T (vnx32hi, 32)
\
+ T (vnx64hi, 64)
\
+ T (vnx4si, 4)
\
+ T (vnx8si, 8)
\
+ T (vnx16si, 16)
\
+ T (vnx32si, 32)
\
+ T (vnx4di, 4)
\
+ T (vnx8di, 8)
\
+ T (vnx16di, 16)
\
+ T (vnx4sf, 4)
\
+ T (vnx8sf, 8)
\
+ T (vnx16sf, 16)
\
+ T (vnx32sf, 32)
\
+ T (vnx4df, 4)
\
+ T (vnx8df, 8)
\
+ T (vnx16df, 16)
+
+CHECK_ALL (CHECK1)
+CHECK_ALL (CHECK2)
+CHECK_ALL (CHECK3)
+CHECK_ALL (CHECK4)
+CHECK_ALL (CHECK5)
+CHECK_ALL (CHECK6)
+
+int
+main ()
+{
+ check1_vnx4qi ();
+ check1_vnx8qi ();
+ check1_vnx16qi ();
+ check1_vnx32qi ();
+ check1_vnx64qi ();
+ check1_vnx128qi ();
+ check1_vnx4hi ();
+ check1_vnx8hi ();
+ check1_vnx16hi ();
+ check1_vnx32hi ();
+ check1_vnx64hi ();
+ check1_vnx4si ();
+ check1_vnx8si ();
+ check1_vnx16si ();
+ check1_vnx32si ();
+ check1_vnx4di ();
+ check1_vnx8di ();
+ check1_vnx16di ();
+ check1_vnx4sf ();
+ check1_vnx8sf ();
+ check1_vnx16sf ();
+ check1_vnx32sf ();
+ check1_vnx4df ();
+ check1_vnx8df ();
+ check1_vnx16df ();
+ check2_vnx4qi ();
+ check2_vnx8qi ();
+ check2_vnx16qi ();
+ check2_vnx32qi ();
+ check2_vnx64qi ();
+ check2_vnx128qi ();
+ check2_vnx4hi ();
+ check2_vnx8hi ();
+ check2_vnx16hi ();
+ check2_vnx32hi ();
+ check2_vnx64hi ();
+ check2_vnx4si ();
+ check2_vnx8si ();
+ check2_vnx16si ();
+ check2_vnx32si ();
+ check2_vnx4di ();
+ check2_vnx8di ();
+ check2_vnx16di ();
+ check2_vnx4sf ();
+ check2_vnx8sf ();
+ check2_vnx16sf ();
+ check2_vnx32sf ();
+ check2_vnx4df ();
+ check2_vnx8df ();
+ check2_vnx16df ();
+ check3_vnx4qi ();
+ check3_vnx8qi ();
+ check3_vnx16qi ();
+ check3_vnx32qi ();
+ check3_vnx64qi ();
+ check3_vnx128qi ();
+ check3_vnx4hi ();
+ check3_vnx8hi ();
+ check3_vnx16hi ();
+ check3_vnx32hi ();
+ check3_vnx64hi ();
+ check3_vnx4si ();
+ check3_vnx8si ();
+ check3_vnx16si ();
+ check3_vnx32si ();
+ check3_vnx4di ();
+ check3_vnx8di ();
+ check3_vnx16di ();
+ check3_vnx4sf ();
+ check3_vnx8sf ();
+ check3_vnx16sf ();
+ check3_vnx32sf ();
+ check3_vnx4df ();
+ check3_vnx8df ();
+ check3_vnx16df ();
+ check4_vnx4qi ();
+ check4_vnx8qi ();
+ check4_vnx16qi ();
+ check4_vnx32qi ();
+ check4_vnx64qi ();
+ check4_vnx128qi ();
+ check4_vnx4hi ();
+ check4_vnx8hi ();
+ check4_vnx16hi ();
+ check4_vnx32hi ();
+ check4_vnx64hi ();
+ check4_vnx4si ();
+ check4_vnx8si ();
+ check4_vnx16si ();
+ check4_vnx32si ();
+ check4_vnx4di ();
+ check4_vnx8di ();
+ check4_vnx16di ();
+ check4_vnx4sf ();
+ check4_vnx8sf ();
+ check4_vnx16sf ();
+ check4_vnx32sf ();
+ check4_vnx4df ();
+ check4_vnx8df ();
+ check4_vnx16df ();
+ check5_vnx4qi ();
+ check5_vnx8qi ();
+ check5_vnx16qi ();
+ check5_vnx32qi ();
+ check5_vnx64qi ();
+ check5_vnx128qi ();
+ check5_vnx4hi ();
+ check5_vnx8hi ();
+ check5_vnx16hi ();
+ check5_vnx32hi ();
+ check5_vnx64hi ();
+ check5_vnx4si ();
+ check5_vnx8si ();
+ check5_vnx16si ();
+ check5_vnx32si ();
+ check5_vnx4di ();
+ check5_vnx8di ();
+ check5_vnx16di ();
+ check5_vnx4sf ();
+ check5_vnx8sf ();
+ check5_vnx16sf ();
+ check5_vnx32sf ();
+ check5_vnx4df ();
+ check5_vnx8df ();
+ check5_vnx16df ();
+ check6_vnx4qi ();
+ check6_vnx8qi ();
+ check6_vnx16qi ();
+ check6_vnx32qi ();
+ check6_vnx64qi ();
+ check6_vnx128qi ();
+ check6_vnx4hi ();
+ check6_vnx8hi ();
+ check6_vnx16hi ();
+ check6_vnx32hi ();
+ check6_vnx64hi ();
+ check6_vnx4si ();
+ check6_vnx8si ();
+ check6_vnx16si ();
+ check6_vnx32si ();
+ check6_vnx4di ();
+ check6_vnx8di ();
+ check6_vnx16di ();
+ check6_vnx4sf ();
+ check6_vnx8sf ();
+ check6_vnx16sf ();
+ check6_vnx32sf ();
+ check6_vnx4df ();
+ check6_vnx8df ();
+ check6_vnx16df ();
+}
diff --git
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide.c
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide.c
new file mode 100644
index 00000000000..4f40094746c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vls-vlmax/shuffle-slide.c
@@ -0,0 +1,207 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -march=rv64gcv -mrvv-max-lmul=m8 -Wno-overflow" } */
+
+#include "perm.h"
+
+#define SERIES_2(x, y) (x), (x + 1)
+#define SERIES_4(x, y) SERIES_2 (x, y), SERIES_2 (x + 2, y)
+#define SERIES_8(x, y) SERIES_4 (x, y), SERIES_4 (x + 4, y)
+#define SERIES_16(x, y) SERIES_8 (x, y), SERIES_8 (x + 8, y)
+#define SERIES_32(x, y) SERIES_16 (x, y), SERIES_16 (x + 16, y)
+#define SERIES_64(x, y) SERIES_32 (x, y), SERIES_32 (x + 32, y)
+#define SERIES_128(x, y) SERIES_64 (x, y), SERIES_64 (x + 64, y)
+
+#define MASK1_4(X, Y) SERIES_2 (X, Y), SERIES_2 (X + 4, Y)
+#define MASK1_8(X, Y) SERIES_4 (X, Y), SERIES_4 (X + 8, Y)
+#define MASK1_16(X, Y) SERIES_8 (X, Y), SERIES_8 (X + 16, Y)
+#define MASK1_32(X, Y) SERIES_16 (X, Y), SERIES_16 (X + 32, Y)
+#define MASK1_64(X, Y) SERIES_32 (X, Y), SERIES_32 (X + 64, Y)
+#define MASK1_128(X, Y) SERIES_64 (X, Y), SERIES_64 (X + 128, Y)
+
+#define MASK1D_4(X, Y) SERIES_2 (X + 2, Y), SERIES_2 (X + 6, Y)
+#define MASK1D_8(X, Y) SERIES_4 (X + 4, Y), SERIES_4 (X + 12, Y)
+#define MASK1D_16(X, Y) SERIES_8 (X + 8, Y), SERIES_8 (X + 24, Y)
+#define MASK1D_32(X, Y) SERIES_16 (X + 16, Y), SERIES_16 (X + 48, Y)
+#define MASK1D_64(X, Y) SERIES_32 (X + 32, Y), SERIES_32 (X + 96, Y)
+#define MASK1D_128(X, Y) SERIES_64 (X + 64, Y), SERIES_64 (X + 192, Y)
+
+#define MASK2U_4(X, Y) 0, 1, 2, 4
+#define MASK2U_8(X, Y) 0, 1, 2, 3, 4, 5, 6, 8
+#define MASK2U_16(X, Y) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16
+#define MASK2U_32(X, Y)
\
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
\
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32
+#define MASK2U_64(X, Y)
\
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
\
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
\
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
\
+ 57, 58, 59, 60, 61, 62, 64
+#define MASK2U_128(X, Y)
\
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
\
+ 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
\
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56,
\
+ 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
\
+ 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92,
\
+ 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108,
\
+ 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123,
\
+ 124, 125, 126, 128
+
+#define MASK3U_4(X, Y) 0, 4, 5, 6
+#define MASK3U_8(X, Y) 0, 8, 9, 10, 11, 12, 13, 14
+#define MASK3U_16(X, Y)
\
+ 0, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
+#define MASK3U_32(X, Y)
\
+ 0, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
\
+ 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62
+#define MASK3U_64(X, Y)
\
+ 0, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81,
\
+ 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
\
+ 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114,
\
+ 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126
+#define MASK3U_128(X, Y)
\
+ 0, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141,
\
+ 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156,
\
+ 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171,
\
+ 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186,
\
+ 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201,
\
+ 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216,
\
+ 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231,
\
+ 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246,
\
+ 247, 248, 249, 250, 251, 252, 253, 254
+
+#define MASK2D_4(X, Y) 1, 2, 3, 7
+#define MASK2D_8(X, Y) 1, 2, 3, 4, 5, 6, 7, 15
+#define MASK2D_16(X, Y) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 31
+#define MASK2D_32(X, Y)
\
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
\
+ 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 63
+#define MASK2D_64(X, Y)
\
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
\
+ 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
\
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
\
+ 58, 59, 60, 61, 62, 63, 127
+#define MASK2D_128(X, Y)
\
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
\
+ 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
\
+ 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,
\
+ 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75,
\
+ 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93,
\
+ 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
\
+ 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124,
\
+ 125, 126, 127, 255
+
+#define MASK3D_4(X, Y) 3, 5, 6, 7
+#define MASK3D_8(X, Y) 7, 9, 10, 11, 12, 13, 14, 15
+#define MASK3D_16(X, Y)
\
+ 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
+#define MASK3D_32(X, Y)
\
+ 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
\
+ 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63
+#define MASK3D_64(X, Y)
\
+ 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
\
+ 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100,
\
+ 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115,
\
+ 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127
+#define MASK3D_128(X, Y)
\
+ 127, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142,
\
+ 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157,
\
+ 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172,
\
+ 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187,
\
+ 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202,
\
+ 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217,
\
+ 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232,
\
+ 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247,
\
+ 248, 249, 250, 251, 252, 253, 254, 255
+
+#define PERMUTE1(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute1_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASK1_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE2(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute2_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASK1D_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE3(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute3_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASK2U_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE4(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute4_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASK3U_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE5(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute5_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASK2D_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define PERMUTE6(TYPE, NUNITS)
\
+ __attribute__ ((noipa)) void permute6_##TYPE (TYPE values1, TYPE values2,
\
+ TYPE *out) \
+ {
\
+ TYPE v = __builtin_shufflevector (values1, values2,
\
+ MASK3D_##NUNITS (0, NUNITS)); \
+ *(TYPE *) out = v;
\
+ }
+
+#define TEST_ALL(T)
\
+ T (vnx4qi, 4)
\
+ T (vnx8qi, 8)
\
+ T (vnx16qi, 16)
\
+ T (vnx32qi, 32)
\
+ T (vnx64qi, 64)
\
+ T (vnx128qi, 128)
\
+ T (vnx4hi, 4)
\
+ T (vnx8hi, 8)
\
+ T (vnx16hi, 16)
\
+ T (vnx32hi, 32)
\
+ T (vnx64hi, 64)
\
+ T (vnx4si, 4)
\
+ T (vnx8si, 8)
\
+ T (vnx16si, 16)
\
+ T (vnx32si, 32)
\
+ T (vnx4di, 4)
\
+ T (vnx8di, 8)
\
+ T (vnx16di, 16)
\
+ T (vnx4sf, 4)
\
+ T (vnx8sf, 8)
\
+ T (vnx16sf, 16)
\
+ T (vnx32sf, 32)
\
+ T (vnx4df, 4)
\
+ T (vnx8df, 8)
\
+ T (vnx16df, 16)
+
+TEST_ALL (PERMUTE1)
+TEST_ALL (PERMUTE2)
+TEST_ALL (PERMUTE3)
+TEST_ALL (PERMUTE4)
+TEST_ALL (PERMUTE5)
+TEST_ALL (PERMUTE6)
+
+/* { dg-final { scan-assembler-times "vslideup" 75 } } */
+/* { dg-final { scan-assembler-times "vslidedown" 75 } } */
+/* { dg-final { scan-assembler-not "vrgather" } } */
+/* { dg-final { scan-assembler-not "vmerge" } } */
diff --git a/gcc/varasm.cc b/gcc/varasm.cc
index 0712b486029..2f1e375c13d 100644
--- a/gcc/varasm.cc
+++ b/gcc/varasm.cc
@@ -4500,7 +4500,7 @@ optimize_constant_pool (struct rtx_constant_pool *pool)
constant_descriptor_rtx_data *data = data_pool.allocate ();
data->desc = desc;
data->bytes = NULL;
- data->size = GET_MODE_SIZE (desc->mode);
+ data->size = GET_MODE_PRECISION (desc->mode);
data->offset = 0;
data->hash = idx++;
size += data->size;
--
2.47.0
