[PULL 00/10] tcg patch queue

[PULL 00/10] tcg patch queue

[Richard Henderson]

The following changes since commit a36d64f43325fa503075cc9408ddabb69b32f829:

  Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-gdbstub-060520-1' into staging (2020-05-06 14:06:00 +0100)

are available in the Git repository at:

  https://github.com/rth7680/qemu.git tags/pull-tcg-20200506

for you to fetch changes up to 07dada0336a83002dfa8673a9220a88e13d9a45c:

  tcg: Fix integral argument type to tcg_gen_rot[rl]i_i{32,64} (2020-05-06 09:25:10 -0700)

----------------------------------------------------------------
Add tcg_gen_gvec_dup_imm
Misc tcg patches

----------------------------------------------------------------
Richard Henderson (10):
      tcg: Add tcg_gen_gvec_dup_imm
      target/s390x: Use tcg_gen_gvec_dup_imm
      target/ppc: Use tcg_gen_gvec_dup_imm
      target/arm: Use tcg_gen_gvec_dup_imm
      tcg: Use tcg_gen_gvec_dup_imm in logical simplifications
      tcg: Remove tcg_gen_gvec_dup{8,16,32,64}i
      tcg: Add tcg_gen_gvec_dup_tl
      tcg: Improve vector tail clearing
      tcg: Add load_dest parameter to GVecGen2
      tcg: Fix integral argument type to tcg_gen_rot[rl]i_i{32,64}

 include/tcg/tcg-op-gvec.h           |  13 ++-
 include/tcg/tcg-op.h                |   8 +-
 target/arm/translate-a64.c          |  10 +--
 target/arm/translate-sve.c          |  12 ++-
 target/arm/translate.c              |   9 +-
 target/ppc/translate/vmx-impl.inc.c |  32 +++----
 target/ppc/translate/vsx-impl.inc.c |   2 +-
 target/s390x/translate_vx.inc.c     |  41 ++-------
 tcg/tcg-op-gvec.c                   | 162 +++++++++++++++++++++++-------------
 tcg/tcg-op.c                        |  16 ++--
 10 files changed, 166 insertions(+), 139 deletions(-)

[PULL 01/10] tcg: Add tcg_gen_gvec_dup_imm

[Richard Henderson]

Add a version of tcg_gen_dup_* that takes both immediate and
a vector element size operand.  This will replace the set of
tcg_gen_gvec_dup{8,16,32,64}i functions that encode the element
size within the function name.

Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg-op-gvec.h | 2 ++
 tcg/tcg-op-gvec.c         | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/include/tcg/tcg-op-gvec.h b/include/tcg/tcg-op-gvec.h
index 74534e2480..eb0d47a42b 100644
--- a/include/tcg/tcg-op-gvec.h
+++ b/include/tcg/tcg-op-gvec.h
@@ -313,6 +313,8 @@ void tcg_gen_gvec_ors(unsigned vece, uint32_t dofs, uint32_t aofs,
 
 void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs,
                           uint32_t s, uint32_t m);
+void tcg_gen_gvec_dup_imm(unsigned vece, uint32_t dofs, uint32_t s,
+                          uint32_t m, uint64_t imm);
 void tcg_gen_gvec_dup_i32(unsigned vece, uint32_t dofs, uint32_t s,
                           uint32_t m, TCGv_i32);
 void tcg_gen_gvec_dup_i64(unsigned vece, uint32_t dofs, uint32_t s,
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 327d9588e0..593bb4542e 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -1569,6 +1569,13 @@ void tcg_gen_gvec_dup8i(uint32_t dofs, uint32_t oprsz,
     do_dup(MO_8, dofs, oprsz, maxsz, NULL, NULL, x);
 }
 
+void tcg_gen_gvec_dup_imm(unsigned vece, uint32_t dofs, uint32_t oprsz,
+                          uint32_t maxsz, uint64_t x)
+{
+    check_size_align(oprsz, maxsz, dofs);
+    do_dup(vece, dofs, oprsz, maxsz, NULL, NULL, x);
+}
+
 void tcg_gen_gvec_not(unsigned vece, uint32_t dofs, uint32_t aofs,
                       uint32_t oprsz, uint32_t maxsz)
 {
-- 
2.20.1

[PULL 02/10] target/s390x: Use tcg_gen_gvec_dup_imm

[Richard Henderson]

The gen_gvec_dupi switch is unnecessary with the new function.
Replace it with a local gen_gvec_dup_imm that takes care of the
register to offset conversion and length arguments.

Drop zero_vec and use use gen_gvec_dup_imm with 0.

Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/s390x/translate_vx.inc.c | 41 +++++++--------------------------
 1 file changed, 8 insertions(+), 33 deletions(-)

diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c
index 24558cce80..12347f8a03 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -231,8 +231,8 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
 #define gen_gvec_mov(v1, v2) \
     tcg_gen_gvec_mov(0, vec_full_reg_offset(v1), vec_full_reg_offset(v2), 16, \
                      16)
-#define gen_gvec_dup64i(v1, c) \
-    tcg_gen_gvec_dup64i(vec_full_reg_offset(v1), 16, 16, c)
+#define gen_gvec_dup_imm(es, v1, c) \
+    tcg_gen_gvec_dup_imm(es, vec_full_reg_offset(v1), 16, 16, c);
 #define gen_gvec_fn_2(fn, es, v1, v2) \
     tcg_gen_gvec_##fn(es, vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
                       16, 16)
@@ -316,31 +316,6 @@ static void gen_gvec128_4_i64(gen_gvec128_4_i64_fn fn, uint8_t d, uint8_t a,
         tcg_temp_free_i64(cl);
 }
 
-static void gen_gvec_dupi(uint8_t es, uint8_t reg, uint64_t c)
-{
-    switch (es) {
-    case ES_8:
-        tcg_gen_gvec_dup8i(vec_full_reg_offset(reg), 16, 16, c);
-        break;
-    case ES_16:
-        tcg_gen_gvec_dup16i(vec_full_reg_offset(reg), 16, 16, c);
-        break;
-    case ES_32:
-        tcg_gen_gvec_dup32i(vec_full_reg_offset(reg), 16, 16, c);
-        break;
-    case ES_64:
-        gen_gvec_dup64i(reg, c);
-        break;
-    default:
-        g_assert_not_reached();
-    }
-}
-
-static void zero_vec(uint8_t reg)
-{
-    tcg_gen_gvec_dup8i(vec_full_reg_offset(reg), 16, 16, 0);
-}
-
 static void gen_addi2_i64(TCGv_i64 dl, TCGv_i64 dh, TCGv_i64 al, TCGv_i64 ah,
                           uint64_t b)
 {
@@ -396,8 +371,8 @@ static DisasJumpType op_vgbm(DisasContext *s, DisasOps *o)
          * Masks for both 64 bit elements of the vector are the same.
          * Trust tcg to produce a good constant loading.
          */
-        gen_gvec_dup64i(get_field(s, v1),
-                        generate_byte_mask(i2 & 0xff));
+        gen_gvec_dup_imm(ES_64, get_field(s, v1),
+                         generate_byte_mask(i2 & 0xff));
     } else {
         TCGv_i64 t = tcg_temp_new_i64();
 
@@ -432,7 +407,7 @@ static DisasJumpType op_vgm(DisasContext *s, DisasOps *o)
         }
     }
 
-    gen_gvec_dupi(es, get_field(s, v1), mask);
+    gen_gvec_dup_imm(es, get_field(s, v1), mask);
     return DISAS_NEXT;
 }
 
@@ -585,7 +560,7 @@ static DisasJumpType op_vllez(DisasContext *s, DisasOps *o)
 
     t = tcg_temp_new_i64();
     tcg_gen_qemu_ld_i64(t, o->addr1, get_mem_index(s), MO_TE | es);
-    zero_vec(get_field(s, v1));
+    gen_gvec_dup_imm(es, get_field(s, v1), 0);
     write_vec_element_i64(t, get_field(s, v1), enr, es);
     tcg_temp_free_i64(t);
     return DISAS_NEXT;
@@ -892,7 +867,7 @@ static DisasJumpType op_vrepi(DisasContext *s, DisasOps *o)
         return DISAS_NORETURN;
     }
 
-    gen_gvec_dupi(es, get_field(s, v1), data);
+    gen_gvec_dup_imm(es, get_field(s, v1), data);
     return DISAS_NEXT;
 }
 
@@ -1372,7 +1347,7 @@ static DisasJumpType op_vcksm(DisasContext *s, DisasOps *o)
         read_vec_element_i32(tmp, get_field(s, v2), i, ES_32);
         tcg_gen_add2_i32(tmp, sum, sum, sum, tmp, tmp);
     }
-    zero_vec(get_field(s, v1));
+    gen_gvec_dup_imm(ES_32, get_field(s, v1), 0);
     write_vec_element_i32(sum, get_field(s, v1), 1, ES_32);
 
     tcg_temp_free_i32(tmp);
-- 
2.20.1

[PULL 03/10] target/ppc: Use tcg_gen_gvec_dup_imm

[Richard Henderson]

We can now unify the implementation of the 3 VSPLTI instructions.

Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/ppc/translate/vmx-impl.inc.c | 32 ++++++++++++++++-------------
 target/ppc/translate/vsx-impl.inc.c |  2 +-
 2 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/target/ppc/translate/vmx-impl.inc.c b/target/ppc/translate/vmx-impl.inc.c
index 81d5a7a341..403ed3a01c 100644
--- a/target/ppc/translate/vmx-impl.inc.c
+++ b/target/ppc/translate/vmx-impl.inc.c
@@ -1035,21 +1035,25 @@ GEN_VXRFORM_DUAL(vcmpbfp, PPC_ALTIVEC, PPC_NONE, \
 GEN_VXRFORM_DUAL(vcmpgtfp, PPC_ALTIVEC, PPC_NONE, \
                  vcmpgtud, PPC_NONE, PPC2_ALTIVEC_207)
 
-#define GEN_VXFORM_DUPI(name, tcg_op, opc2, opc3)                       \
-static void glue(gen_, name)(DisasContext *ctx)                         \
-    {                                                                   \
-        int simm;                                                       \
-        if (unlikely(!ctx->altivec_enabled)) {                          \
-            gen_exception(ctx, POWERPC_EXCP_VPU);                       \
-            return;                                                     \
-        }                                                               \
-        simm = SIMM5(ctx->opcode);                                      \
-        tcg_op(avr_full_offset(rD(ctx->opcode)), 16, 16, simm);         \
+static void gen_vsplti(DisasContext *ctx, int vece)
+{
+    int simm;
+
+    if (unlikely(!ctx->altivec_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VPU);
+        return;
     }
 
-GEN_VXFORM_DUPI(vspltisb, tcg_gen_gvec_dup8i, 6, 12);
-GEN_VXFORM_DUPI(vspltish, tcg_gen_gvec_dup16i, 6, 13);
-GEN_VXFORM_DUPI(vspltisw, tcg_gen_gvec_dup32i, 6, 14);
+    simm = SIMM5(ctx->opcode);
+    tcg_gen_gvec_dup_imm(vece, avr_full_offset(rD(ctx->opcode)), 16, 16, simm);
+}
+
+#define GEN_VXFORM_VSPLTI(name, vece, opc2, opc3) \
+static void glue(gen_, name)(DisasContext *ctx) { gen_vsplti(ctx, vece); }
+
+GEN_VXFORM_VSPLTI(vspltisb, MO_8, 6, 12);
+GEN_VXFORM_VSPLTI(vspltish, MO_16, 6, 13);
+GEN_VXFORM_VSPLTI(vspltisw, MO_32, 6, 14);
 
 #define GEN_VXFORM_NOA(name, opc2, opc3)                                \
 static void glue(gen_, name)(DisasContext *ctx)                         \
@@ -1559,7 +1563,7 @@ GEN_VXFORM_DUAL(vsldoi, PPC_ALTIVEC, PPC_NONE,
 #undef GEN_VXRFORM_DUAL
 #undef GEN_VXRFORM1
 #undef GEN_VXRFORM
-#undef GEN_VXFORM_DUPI
+#undef GEN_VXFORM_VSPLTI
 #undef GEN_VXFORM_NOA
 #undef GEN_VXFORM_UIMM
 #undef GEN_VAFORM_PAIRED
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index 8287e272f5..b518de46db 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1579,7 +1579,7 @@ static void gen_xxspltib(DisasContext *ctx)
             return;
         }
     }
-    tcg_gen_gvec_dup8i(vsr_full_offset(rt), 16, 16, uim8);
+    tcg_gen_gvec_dup_imm(MO_8, vsr_full_offset(rt), 16, 16, uim8);
 }
 
 static void gen_xxsldwi(DisasContext *ctx)
-- 
2.20.1

[PULL 04/10] target/arm: Use tcg_gen_gvec_dup_imm

[Richard Henderson]

In a few cases, we're able to remove some manual replication.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/translate-a64.c | 10 +++++-----
 target/arm/translate-sve.c | 12 +++++-------
 target/arm/translate.c     |  9 ++++++---
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index a896f9c4b8..62e5729904 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -502,7 +502,7 @@ static void clear_vec_high(DisasContext *s, bool is_q, int rd)
         tcg_temp_free_i64(tcg_zero);
     }
     if (vsz > 16) {
-        tcg_gen_gvec_dup8i(ofs + 16, vsz - 16, vsz - 16, 0);
+        tcg_gen_gvec_dup_imm(MO_64, ofs + 16, vsz - 16, vsz - 16, 0);
     }
 }
 
@@ -7785,8 +7785,8 @@ static void disas_simd_mod_imm(DisasContext *s, uint32_t insn)
 
     if (!((cmode & 0x9) == 0x1 || (cmode & 0xd) == 0x9)) {
         /* MOVI or MVNI, with MVNI negation handled above.  */
-        tcg_gen_gvec_dup64i(vec_full_reg_offset(s, rd), is_q ? 16 : 8,
-                            vec_full_reg_size(s), imm);
+        tcg_gen_gvec_dup_imm(MO_64, vec_full_reg_offset(s, rd), is_q ? 16 : 8,
+                             vec_full_reg_size(s), imm);
     } else {
         /* ORR or BIC, with BIC negation to AND handled above.  */
         if (is_neg) {
@@ -10214,8 +10214,8 @@ static void handle_vec_simd_shri(DisasContext *s, bool is_q, bool is_u,
         if (is_u) {
             if (shift == 8 << size) {
                 /* Shift count the same size as element size produces zero.  */
-                tcg_gen_gvec_dup8i(vec_full_reg_offset(s, rd),
-                                   is_q ? 16 : 8, vec_full_reg_size(s), 0);
+                tcg_gen_gvec_dup_imm(size, vec_full_reg_offset(s, rd),
+                                     is_q ? 16 : 8, vec_full_reg_size(s), 0);
             } else {
                 gen_gvec_fn2i(s, is_q, rd, rn, shift, tcg_gen_gvec_shri, size);
             }
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index b35bad245e..6c8bda4e4c 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -177,7 +177,7 @@ static bool do_mov_z(DisasContext *s, int rd, int rn)
 static void do_dupi_z(DisasContext *s, int rd, uint64_t word)
 {
     unsigned vsz = vec_full_reg_size(s);
-    tcg_gen_gvec_dup64i(vec_full_reg_offset(s, rd), vsz, vsz, word);
+    tcg_gen_gvec_dup_imm(MO_64, vec_full_reg_offset(s, rd), vsz, vsz, word);
 }
 
 /* Invoke a vector expander on two Pregs.  */
@@ -1453,7 +1453,7 @@ static bool do_predset(DisasContext *s, int esz, int rd, int pat, bool setflag)
         unsigned oprsz = size_for_gvec(setsz / 8);
 
         if (oprsz * 8 == setsz) {
-            tcg_gen_gvec_dup64i(ofs, oprsz, maxsz, word);
+            tcg_gen_gvec_dup_imm(MO_64, ofs, oprsz, maxsz, word);
             goto done;
         }
     }
@@ -2044,7 +2044,7 @@ static bool trans_DUP_x(DisasContext *s, arg_DUP_x *a)
             unsigned nofs = vec_reg_offset(s, a->rn, index, esz);
             tcg_gen_gvec_dup_mem(esz, dofs, nofs, vsz, vsz);
         } else {
-            tcg_gen_gvec_dup64i(dofs, vsz, vsz, 0);
+            tcg_gen_gvec_dup_imm(esz, dofs, vsz, vsz, 0);
         }
     }
     return true;
@@ -3260,9 +3260,7 @@ static bool trans_FDUP(DisasContext *s, arg_FDUP *a)
 
         /* Decode the VFP immediate.  */
         imm = vfp_expand_imm(a->esz, a->imm);
-        imm = dup_const(a->esz, imm);
-
-        tcg_gen_gvec_dup64i(dofs, vsz, vsz, imm);
+        tcg_gen_gvec_dup_imm(a->esz, dofs, vsz, vsz, imm);
     }
     return true;
 }
@@ -3276,7 +3274,7 @@ static bool trans_DUP_i(DisasContext *s, arg_DUP_i *a)
         unsigned vsz = vec_full_reg_size(s);
         int dofs = vec_full_reg_offset(s, a->rd);
 
-        tcg_gen_gvec_dup64i(dofs, vsz, vsz, dup_const(a->esz, a->imm));
+        tcg_gen_gvec_dup_imm(a->esz, dofs, vsz, vsz, a->imm);
     }
     return true;
 }
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 025747c0bd..74fac1d09c 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5209,7 +5209,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
                                           MIN(shift, (8 << size) - 1),
                                           vec_size, vec_size);
                     } else if (shift >= 8 << size) {
-                        tcg_gen_gvec_dup8i(rd_ofs, vec_size, vec_size, 0);
+                        tcg_gen_gvec_dup_imm(MO_8, rd_ofs, vec_size,
+                                             vec_size, 0);
                     } else {
                         tcg_gen_gvec_shri(size, rd_ofs, rm_ofs, shift,
                                           vec_size, vec_size);
@@ -5260,7 +5261,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
                          * architecturally valid and results in zero.
                          */
                         if (shift >= 8 << size) {
-                            tcg_gen_gvec_dup8i(rd_ofs, vec_size, vec_size, 0);
+                            tcg_gen_gvec_dup_imm(size, rd_ofs,
+                                                 vec_size, vec_size, 0);
                         } else {
                             tcg_gen_gvec_shli(size, rd_ofs, rm_ofs, shift,
                                               vec_size, vec_size);
@@ -5606,7 +5608,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
                     }
                     tcg_temp_free_i64(t64);
                 } else {
-                    tcg_gen_gvec_dup32i(reg_ofs, vec_size, vec_size, imm);
+                    tcg_gen_gvec_dup_imm(MO_32, reg_ofs, vec_size,
+                                         vec_size, imm);
                 }
             }
         }
-- 
2.20.1

[PULL 05/10] tcg: Use tcg_gen_gvec_dup_imm in logical simplifications

[Richard Henderson]

Replace the outgoing interface.

Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/tcg-op-gvec.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 593bb4542e..de16c027b3 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -2326,7 +2326,7 @@ void tcg_gen_gvec_xor(unsigned vece, uint32_t dofs, uint32_t aofs,
     };
 
     if (aofs == bofs) {
-        tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, 0);
+        tcg_gen_gvec_dup_imm(MO_64, dofs, oprsz, maxsz, 0);
     } else {
         tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
     }
@@ -2343,7 +2343,7 @@ void tcg_gen_gvec_andc(unsigned vece, uint32_t dofs, uint32_t aofs,
     };
 
     if (aofs == bofs) {
-        tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, 0);
+        tcg_gen_gvec_dup_imm(MO_64, dofs, oprsz, maxsz, 0);
     } else {
         tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
     }
@@ -2360,7 +2360,7 @@ void tcg_gen_gvec_orc(unsigned vece, uint32_t dofs, uint32_t aofs,
     };
 
     if (aofs == bofs) {
-        tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, -1);
+        tcg_gen_gvec_dup_imm(MO_64, dofs, oprsz, maxsz, -1);
     } else {
         tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
     }
@@ -2411,7 +2411,7 @@ void tcg_gen_gvec_eqv(unsigned vece, uint32_t dofs, uint32_t aofs,
     };
 
     if (aofs == bofs) {
-        tcg_gen_gvec_dup8i(dofs, oprsz, maxsz, -1);
+        tcg_gen_gvec_dup_imm(MO_64, dofs, oprsz, maxsz, -1);
     } else {
         tcg_gen_gvec_3(dofs, aofs, bofs, oprsz, maxsz, &g);
     }
-- 
2.20.1

[PULL 06/10] tcg: Remove tcg_gen_gvec_dup{8,16,32,64}i

[Richard Henderson]

These interfaces are now unused.

Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg-op-gvec.h |  5 -----
 tcg/tcg-op-gvec.c         | 28 ----------------------------
 2 files changed, 33 deletions(-)

diff --git a/include/tcg/tcg-op-gvec.h b/include/tcg/tcg-op-gvec.h
index eb0d47a42b..fa8a0c8d03 100644
--- a/include/tcg/tcg-op-gvec.h
+++ b/include/tcg/tcg-op-gvec.h
@@ -320,11 +320,6 @@ void tcg_gen_gvec_dup_i32(unsigned vece, uint32_t dofs, uint32_t s,
 void tcg_gen_gvec_dup_i64(unsigned vece, uint32_t dofs, uint32_t s,
                           uint32_t m, TCGv_i64);
 
-void tcg_gen_gvec_dup8i(uint32_t dofs, uint32_t s, uint32_t m, uint8_t x);
-void tcg_gen_gvec_dup16i(uint32_t dofs, uint32_t s, uint32_t m, uint16_t x);
-void tcg_gen_gvec_dup32i(uint32_t dofs, uint32_t s, uint32_t m, uint32_t x);
-void tcg_gen_gvec_dup64i(uint32_t dofs, uint32_t s, uint32_t m, uint64_t x);
-
 void tcg_gen_gvec_shli(unsigned vece, uint32_t dofs, uint32_t aofs,
                        int64_t shift, uint32_t oprsz, uint32_t maxsz);
 void tcg_gen_gvec_shri(unsigned vece, uint32_t dofs, uint32_t aofs,
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index de16c027b3..5a6cc19812 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -1541,34 +1541,6 @@ void tcg_gen_gvec_dup_mem(unsigned vece, uint32_t dofs, uint32_t aofs,
     }
 }
 
-void tcg_gen_gvec_dup64i(uint32_t dofs, uint32_t oprsz,
-                         uint32_t maxsz, uint64_t x)
-{
-    check_size_align(oprsz, maxsz, dofs);
-    do_dup(MO_64, dofs, oprsz, maxsz, NULL, NULL, x);
-}
-
-void tcg_gen_gvec_dup32i(uint32_t dofs, uint32_t oprsz,
-                         uint32_t maxsz, uint32_t x)
-{
-    check_size_align(oprsz, maxsz, dofs);
-    do_dup(MO_32, dofs, oprsz, maxsz, NULL, NULL, x);
-}
-
-void tcg_gen_gvec_dup16i(uint32_t dofs, uint32_t oprsz,
-                         uint32_t maxsz, uint16_t x)
-{
-    check_size_align(oprsz, maxsz, dofs);
-    do_dup(MO_16, dofs, oprsz, maxsz, NULL, NULL, x);
-}
-
-void tcg_gen_gvec_dup8i(uint32_t dofs, uint32_t oprsz,
-                         uint32_t maxsz, uint8_t x)
-{
-    check_size_align(oprsz, maxsz, dofs);
-    do_dup(MO_8, dofs, oprsz, maxsz, NULL, NULL, x);
-}
-
 void tcg_gen_gvec_dup_imm(unsigned vece, uint32_t dofs, uint32_t oprsz,
                           uint32_t maxsz, uint64_t x)
 {
-- 
2.20.1

[PULL 07/10] tcg: Add tcg_gen_gvec_dup_tl

[Richard Henderson]

For use when a target needs to pass a configure-specific
target_ulong value to duplicate.

Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg-op-gvec.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/tcg/tcg-op-gvec.h b/include/tcg/tcg-op-gvec.h
index fa8a0c8d03..d89f91f40e 100644
--- a/include/tcg/tcg-op-gvec.h
+++ b/include/tcg/tcg-op-gvec.h
@@ -320,6 +320,12 @@ void tcg_gen_gvec_dup_i32(unsigned vece, uint32_t dofs, uint32_t s,
 void tcg_gen_gvec_dup_i64(unsigned vece, uint32_t dofs, uint32_t s,
                           uint32_t m, TCGv_i64);
 
+#if TARGET_LONG_BITS == 64
+# define tcg_gen_gvec_dup_tl  tcg_gen_gvec_dup_i64
+#else
+# define tcg_gen_gvec_dup_tl  tcg_gen_gvec_dup_i32
+#endif
+
 void tcg_gen_gvec_shli(unsigned vece, uint32_t dofs, uint32_t aofs,
                        int64_t shift, uint32_t oprsz, uint32_t maxsz);
 void tcg_gen_gvec_shri(unsigned vece, uint32_t dofs, uint32_t aofs,
-- 
2.20.1

[PULL 08/10] tcg: Improve vector tail clearing

[Richard Henderson]

Better handling of non-power-of-2 tails as seen with Arm 8-byte
vector operations.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/tcg-op-gvec.c | 82 ++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 63 insertions(+), 19 deletions(-)

diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 5a6cc19812..43cac1a0bf 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -326,11 +326,34 @@ void tcg_gen_gvec_5_ptr(uint32_t dofs, uint32_t aofs, uint32_t bofs,
    in units of LNSZ.  This limits the expansion of inline code.  */
 static inline bool check_size_impl(uint32_t oprsz, uint32_t lnsz)
 {
-    if (oprsz % lnsz == 0) {
-        uint32_t lnct = oprsz / lnsz;
-        return lnct >= 1 && lnct <= MAX_UNROLL;
+    uint32_t q, r;
+
+    if (oprsz < lnsz) {
+        return false;
     }
-    return false;
+
+    q = oprsz / lnsz;
+    r = oprsz % lnsz;
+    tcg_debug_assert((r & 7) == 0);
+
+    if (lnsz < 16) {
+        /* For sizes below 16, accept no remainder. */
+        if (r != 0) {
+            return false;
+        }
+    } else {
+        /*
+         * Recall that ARM SVE allows vector sizes that are not a
+         * power of 2, but always a multiple of 16.  The intent is
+         * that e.g. size == 80 would be expanded with 2x32 + 1x16.
+         * In addition, expand_clr needs to handle a multiple of 8.
+         * Thus we can handle the tail with one more operation per
+         * diminishing power of 2.
+         */
+        q += ctpop32(r);
+    }
+
+    return q <= MAX_UNROLL;
 }
 
 static void expand_clr(uint32_t dofs, uint32_t maxsz);
@@ -402,22 +425,31 @@ static void gen_dup_i64(unsigned vece, TCGv_i64 out, TCGv_i64 in)
 static TCGType choose_vector_type(const TCGOpcode *list, unsigned vece,
                                   uint32_t size, bool prefer_i64)
 {
-    if (TCG_TARGET_HAS_v256 && check_size_impl(size, 32)) {
-        /*
-         * Recall that ARM SVE allows vector sizes that are not a
-         * power of 2, but always a multiple of 16.  The intent is
-         * that e.g. size == 80 would be expanded with 2x32 + 1x16.
-         * It is hard to imagine a case in which v256 is supported
-         * but v128 is not, but check anyway.
-         */
-        if (tcg_can_emit_vecop_list(list, TCG_TYPE_V256, vece)
-            && (size % 32 == 0
-                || tcg_can_emit_vecop_list(list, TCG_TYPE_V128, vece))) {
-            return TCG_TYPE_V256;
-        }
+    /*
+     * Recall that ARM SVE allows vector sizes that are not a
+     * power of 2, but always a multiple of 16.  The intent is
+     * that e.g. size == 80 would be expanded with 2x32 + 1x16.
+     * It is hard to imagine a case in which v256 is supported
+     * but v128 is not, but check anyway.
+     * In addition, expand_clr needs to handle a multiple of 8.
+     */
+    if (TCG_TARGET_HAS_v256 &&
+        check_size_impl(size, 32) &&
+        tcg_can_emit_vecop_list(list, TCG_TYPE_V256, vece) &&
+        (!(size & 16) ||
+         (TCG_TARGET_HAS_v128 &&
+          tcg_can_emit_vecop_list(list, TCG_TYPE_V128, vece))) &&
+        (!(size & 8) ||
+         (TCG_TARGET_HAS_v64 &&
+          tcg_can_emit_vecop_list(list, TCG_TYPE_V64, vece)))) {
+        return TCG_TYPE_V256;
     }
-    if (TCG_TARGET_HAS_v128 && check_size_impl(size, 16)
-        && tcg_can_emit_vecop_list(list, TCG_TYPE_V128, vece)) {
+    if (TCG_TARGET_HAS_v128 &&
+        check_size_impl(size, 16) &&
+        tcg_can_emit_vecop_list(list, TCG_TYPE_V128, vece) &&
+        (!(size & 8) ||
+         (TCG_TARGET_HAS_v64 &&
+          tcg_can_emit_vecop_list(list, TCG_TYPE_V64, vece)))) {
         return TCG_TYPE_V128;
     }
     if (TCG_TARGET_HAS_v64 && !prefer_i64 && check_size_impl(size, 8)
@@ -432,6 +464,18 @@ static void do_dup_store(TCGType type, uint32_t dofs, uint32_t oprsz,
 {
     uint32_t i = 0;
 
+    tcg_debug_assert(oprsz >= 8);
+
+    /*
+     * This may be expand_clr for the tail of an operation, e.g.
+     * oprsz == 8 && maxsz == 64.  The first 8 bytes of this store
+     * are misaligned wrt the maximum vector size, so do that first.
+     */
+    if (dofs & 8) {
+        tcg_gen_stl_vec(t_vec, cpu_env, dofs + i, TCG_TYPE_V64);
+        i += 8;
+    }
+
     switch (type) {
     case TCG_TYPE_V256:
         /*
-- 
2.20.1

[PULL 09/10] tcg: Add load_dest parameter to GVecGen2

[Richard Henderson]

We have this same parameter for GVecGen2i, GVecGen3,
and GVecGen3i.  This will make some SVE2 insns easier
to parameterize.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg-op-gvec.h |  2 ++
 tcg/tcg-op-gvec.c         | 45 ++++++++++++++++++++++++++++-----------
 2 files changed, 34 insertions(+), 13 deletions(-)

diff --git a/include/tcg/tcg-op-gvec.h b/include/tcg/tcg-op-gvec.h
index d89f91f40e..cea6497341 100644
--- a/include/tcg/tcg-op-gvec.h
+++ b/include/tcg/tcg-op-gvec.h
@@ -109,6 +109,8 @@ typedef struct {
     uint8_t vece;
     /* Prefer i64 to v64.  */
     bool prefer_i64;
+    /* Load dest as a 2nd source operand.  */
+    bool load_dest;
 } GVecGen2;
 
 typedef struct {
diff --git a/tcg/tcg-op-gvec.c b/tcg/tcg-op-gvec.c
index 43cac1a0bf..049a55e700 100644
--- a/tcg/tcg-op-gvec.c
+++ b/tcg/tcg-op-gvec.c
@@ -663,17 +663,22 @@ static void expand_clr(uint32_t dofs, uint32_t maxsz)
 
 /* Expand OPSZ bytes worth of two-operand operations using i32 elements.  */
 static void expand_2_i32(uint32_t dofs, uint32_t aofs, uint32_t oprsz,
-                         void (*fni)(TCGv_i32, TCGv_i32))
+                         bool load_dest, void (*fni)(TCGv_i32, TCGv_i32))
 {
     TCGv_i32 t0 = tcg_temp_new_i32();
+    TCGv_i32 t1 = tcg_temp_new_i32();
     uint32_t i;
 
     for (i = 0; i < oprsz; i += 4) {
         tcg_gen_ld_i32(t0, cpu_env, aofs + i);
-        fni(t0, t0);
-        tcg_gen_st_i32(t0, cpu_env, dofs + i);
+        if (load_dest) {
+            tcg_gen_ld_i32(t1, cpu_env, dofs + i);
+        }
+        fni(t1, t0);
+        tcg_gen_st_i32(t1, cpu_env, dofs + i);
     }
     tcg_temp_free_i32(t0);
+    tcg_temp_free_i32(t1);
 }
 
 static void expand_2i_i32(uint32_t dofs, uint32_t aofs, uint32_t oprsz,
@@ -793,17 +798,22 @@ static void expand_4_i32(uint32_t dofs, uint32_t aofs, uint32_t bofs,
 
 /* Expand OPSZ bytes worth of two-operand operations using i64 elements.  */
 static void expand_2_i64(uint32_t dofs, uint32_t aofs, uint32_t oprsz,
-                         void (*fni)(TCGv_i64, TCGv_i64))
+                         bool load_dest, void (*fni)(TCGv_i64, TCGv_i64))
 {
     TCGv_i64 t0 = tcg_temp_new_i64();
+    TCGv_i64 t1 = tcg_temp_new_i64();
     uint32_t i;
 
     for (i = 0; i < oprsz; i += 8) {
         tcg_gen_ld_i64(t0, cpu_env, aofs + i);
-        fni(t0, t0);
-        tcg_gen_st_i64(t0, cpu_env, dofs + i);
+        if (load_dest) {
+            tcg_gen_ld_i64(t1, cpu_env, dofs + i);
+        }
+        fni(t1, t0);
+        tcg_gen_st_i64(t1, cpu_env, dofs + i);
     }
     tcg_temp_free_i64(t0);
+    tcg_temp_free_i64(t1);
 }
 
 static void expand_2i_i64(uint32_t dofs, uint32_t aofs, uint32_t oprsz,
@@ -924,17 +934,23 @@ static void expand_4_i64(uint32_t dofs, uint32_t aofs, uint32_t bofs,
 /* Expand OPSZ bytes worth of two-operand operations using host vectors.  */
 static void expand_2_vec(unsigned vece, uint32_t dofs, uint32_t aofs,
                          uint32_t oprsz, uint32_t tysz, TCGType type,
+                         bool load_dest,
                          void (*fni)(unsigned, TCGv_vec, TCGv_vec))
 {
     TCGv_vec t0 = tcg_temp_new_vec(type);
+    TCGv_vec t1 = tcg_temp_new_vec(type);
     uint32_t i;
 
     for (i = 0; i < oprsz; i += tysz) {
         tcg_gen_ld_vec(t0, cpu_env, aofs + i);
-        fni(vece, t0, t0);
-        tcg_gen_st_vec(t0, cpu_env, dofs + i);
+        if (load_dest) {
+            tcg_gen_ld_vec(t1, cpu_env, dofs + i);
+        }
+        fni(vece, t1, t0);
+        tcg_gen_st_vec(t1, cpu_env, dofs + i);
     }
     tcg_temp_free_vec(t0);
+    tcg_temp_free_vec(t1);
 }
 
 /* Expand OPSZ bytes worth of two-vector operands and an immediate operand
@@ -1088,7 +1104,8 @@ void tcg_gen_gvec_2(uint32_t dofs, uint32_t aofs,
          * that e.g. size == 80 would be expanded with 2x32 + 1x16.
          */
         some = QEMU_ALIGN_DOWN(oprsz, 32);
-        expand_2_vec(g->vece, dofs, aofs, some, 32, TCG_TYPE_V256, g->fniv);
+        expand_2_vec(g->vece, dofs, aofs, some, 32, TCG_TYPE_V256,
+                     g->load_dest, g->fniv);
         if (some == oprsz) {
             break;
         }
@@ -1098,17 +1115,19 @@ void tcg_gen_gvec_2(uint32_t dofs, uint32_t aofs,
         maxsz -= some;
         /* fallthru */
     case TCG_TYPE_V128:
-        expand_2_vec(g->vece, dofs, aofs, oprsz, 16, TCG_TYPE_V128, g->fniv);
+        expand_2_vec(g->vece, dofs, aofs, oprsz, 16, TCG_TYPE_V128,
+                     g->load_dest, g->fniv);
         break;
     case TCG_TYPE_V64:
-        expand_2_vec(g->vece, dofs, aofs, oprsz, 8, TCG_TYPE_V64, g->fniv);
+        expand_2_vec(g->vece, dofs, aofs, oprsz, 8, TCG_TYPE_V64,
+                     g->load_dest, g->fniv);
         break;
 
     case 0:
         if (g->fni8 && check_size_impl(oprsz, 8)) {
-            expand_2_i64(dofs, aofs, oprsz, g->fni8);
+            expand_2_i64(dofs, aofs, oprsz, g->load_dest, g->fni8);
         } else if (g->fni4 && check_size_impl(oprsz, 4)) {
-            expand_2_i32(dofs, aofs, oprsz, g->fni4);
+            expand_2_i32(dofs, aofs, oprsz, g->load_dest, g->fni4);
         } else {
             assert(g->fno != NULL);
             tcg_gen_gvec_2_ool(dofs, aofs, oprsz, maxsz, g->data, g->fno);
-- 
2.20.1

[PULL 10/10] tcg: Fix integral argument type to tcg_gen_rot[rl]i_i{32, 64}

[Richard Henderson]

For the benefit of compatibility of function pointer types,
we have standardized on int32_t and int64_t as the integral
argument to tcg expanders.

We converted most of them in 474b2e8f0f7, but missed the rotates.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 include/tcg/tcg-op.h |  8 ++++----
 tcg/tcg-op.c         | 16 ++++++++--------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h
index 230db6e022..e3399d6a5e 100644
--- a/include/tcg/tcg-op.h
+++ b/include/tcg/tcg-op.h
@@ -297,9 +297,9 @@ void tcg_gen_ctzi_i32(TCGv_i32 ret, TCGv_i32 arg1, uint32_t arg2);
 void tcg_gen_clrsb_i32(TCGv_i32 ret, TCGv_i32 arg);
 void tcg_gen_ctpop_i32(TCGv_i32 a1, TCGv_i32 a2);
 void tcg_gen_rotl_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2);
-void tcg_gen_rotli_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2);
+void tcg_gen_rotli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2);
 void tcg_gen_rotr_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2);
-void tcg_gen_rotri_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2);
+void tcg_gen_rotri_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2);
 void tcg_gen_deposit_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2,
                          unsigned int ofs, unsigned int len);
 void tcg_gen_deposit_z_i32(TCGv_i32 ret, TCGv_i32 arg,
@@ -493,9 +493,9 @@ void tcg_gen_ctzi_i64(TCGv_i64 ret, TCGv_i64 arg1, uint64_t arg2);
 void tcg_gen_clrsb_i64(TCGv_i64 ret, TCGv_i64 arg);
 void tcg_gen_ctpop_i64(TCGv_i64 a1, TCGv_i64 a2);
 void tcg_gen_rotl_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2);
-void tcg_gen_rotli_i64(TCGv_i64 ret, TCGv_i64 arg1, unsigned arg2);
+void tcg_gen_rotli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2);
 void tcg_gen_rotr_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2);
-void tcg_gen_rotri_i64(TCGv_i64 ret, TCGv_i64 arg1, unsigned arg2);
+void tcg_gen_rotri_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2);
 void tcg_gen_deposit_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2,
                          unsigned int ofs, unsigned int len);
 void tcg_gen_deposit_z_i64(TCGv_i64 ret, TCGv_i64 arg,
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index e2e25ebf7d..e60b74fb82 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -540,9 +540,9 @@ void tcg_gen_rotl_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
     }
 }
 
-void tcg_gen_rotli_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
+void tcg_gen_rotli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
 {
-    tcg_debug_assert(arg2 < 32);
+    tcg_debug_assert(arg2 >= 0 && arg2 < 32);
     /* some cases can be optimized here */
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
@@ -580,9 +580,9 @@ void tcg_gen_rotr_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)
     }
 }
 
-void tcg_gen_rotri_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
+void tcg_gen_rotri_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)
 {
-    tcg_debug_assert(arg2 < 32);
+    tcg_debug_assert(arg2 >= 0 && arg2 < 32);
     /* some cases can be optimized here */
     if (arg2 == 0) {
         tcg_gen_mov_i32(ret, arg1);
@@ -1962,9 +1962,9 @@ void tcg_gen_rotl_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
     }
 }
 
-void tcg_gen_rotli_i64(TCGv_i64 ret, TCGv_i64 arg1, unsigned arg2)
+void tcg_gen_rotli_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
 {
-    tcg_debug_assert(arg2 < 64);
+    tcg_debug_assert(arg2 >= 0 && arg2 < 64);
     /* some cases can be optimized here */
     if (arg2 == 0) {
         tcg_gen_mov_i64(ret, arg1);
@@ -2001,9 +2001,9 @@ void tcg_gen_rotr_i64(TCGv_i64 ret, TCGv_i64 arg1, TCGv_i64 arg2)
     }
 }
 
-void tcg_gen_rotri_i64(TCGv_i64 ret, TCGv_i64 arg1, unsigned arg2)
+void tcg_gen_rotri_i64(TCGv_i64 ret, TCGv_i64 arg1, int64_t arg2)
 {
-    tcg_debug_assert(arg2 < 64);
+    tcg_debug_assert(arg2 >= 0 && arg2 < 64);
     /* some cases can be optimized here */
     if (arg2 == 0) {
         tcg_gen_mov_i64(ret, arg1);
-- 
2.20.1

Re: [PULL 00/10] tcg patch queue

[Peter Maydell]

On Wed, 6 May 2020 at 19:30, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> The following changes since commit a36d64f43325fa503075cc9408ddabb69b32f829:
>
>   Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-gdbstub-060520-1' into staging (2020-05-06 14:06:00 +0100)
>
> are available in the Git repository at:
>
>   https://github.com/rth7680/qemu.git tags/pull-tcg-20200506
>
> for you to fetch changes up to 07dada0336a83002dfa8673a9220a88e13d9a45c:
>
>   tcg: Fix integral argument type to tcg_gen_rot[rl]i_i{32,64} (2020-05-06 09:25:10 -0700)
>
> ----------------------------------------------------------------
> Add tcg_gen_gvec_dup_imm
> Misc tcg patches


Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/5.1
for any user-visible changes.

-- PMM

Re: [PULL 04/10] target/arm: Use tcg_gen_gvec_dup_imm

[Laurent Desnogues]

Hello,

On Wed, May 6, 2020 at 8:30 PM Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> In a few cases, we're able to remove some manual replication.
>
> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/arm/translate-a64.c | 10 +++++-----
>  target/arm/translate-sve.c | 12 +++++-------
>  target/arm/translate.c     |  9 ++++++---
>  3 files changed, 16 insertions(+), 15 deletions(-)
>
> diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
> index a896f9c4b8..62e5729904 100644
> --- a/target/arm/translate-a64.c
> +++ b/target/arm/translate-a64.c
[...]
> @@ -2044,7 +2044,7 @@ static bool trans_DUP_x(DisasContext *s, arg_DUP_x *a)
>              unsigned nofs = vec_reg_offset(s, a->rn, index, esz);
>              tcg_gen_gvec_dup_mem(esz, dofs, nofs, vsz, vsz);
>          } else {
> -            tcg_gen_gvec_dup64i(dofs, vsz, vsz, 0);
> +            tcg_gen_gvec_dup_imm(esz, dofs, vsz, vsz, 0);

For an indexed DUP, size can be 128-bit so that will fail the first
assert in tcg-op-gvec.c:do_dup.

Thanks,

Laurent

Re: [PULL 04/10] target/arm: Use tcg_gen_gvec_dup_imm

[Richard Henderson]

On 5/7/20 7:39 AM, Laurent Desnogues wrote:
>> @@ -2044,7 +2044,7 @@ static bool trans_DUP_x(DisasContext *s, arg_DUP_x *a)
>>              unsigned nofs = vec_reg_offset(s, a->rn, index, esz);
>>              tcg_gen_gvec_dup_mem(esz, dofs, nofs, vsz, vsz);
>>          } else {
>> -            tcg_gen_gvec_dup64i(dofs, vsz, vsz, 0);
>> +            tcg_gen_gvec_dup_imm(esz, dofs, vsz, vsz, 0);
> 
> For an indexed DUP, size can be 128-bit so that will fail the first
> assert in tcg-op-gvec.c:do_dup.

Ho hum, quite right.  This has already been merged, so I'll send a follow-up fix.


r~