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From: Jan Beulich <jbeulich@sourceware.org>
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Subject: [binutils-gdb] x86: fold AVX VGATHERDPD / VPGATHERDQ
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https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3D05a79382ed80=
888485e30776d749352f6e54592a

commit 05a79382ed80888485e30776d749352f6e54592a
Author: Jan Beulich <jbeulich@suse.com>
Date:   Tue Aug 9 09:18:56 2022 +0200

    x86: fold AVX VGATHERDPD / VPGATHERDQ
   =20
    While the other three variants each differ in attributes and hence can't
    be folded, these two pairs actually can be (and were previously
    overlooked). This effectively matches their AVX512VL counterparts, which
    are also expressed as a single template.

Diff:
---
 opcodes/i386-opc.tbl |  6 ++----
 opcodes/i386-tbl.h   | 46 ++++++----------------------------------------
 2 files changed, 8 insertions(+), 44 deletions(-)

diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl
index d3b53661955..87f1e921853 100644
--- a/opcodes/i386-opc.tbl
+++ b/opcodes/i386-opc.tbl
@@ -1827,8 +1827,7 @@ vpsrlvd, 0x6645, None, CpuAVX2, Modrm|Vex|Space0F38|V=
exVVVV=3D1|VexW=3D1|CheckRegSiz
 vpsrlvq, 0x6645, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV=3D1|VexW=3D2|C=
heckRegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Unspecified=
|BaseIndex|RegXMM|RegYMM, RegXMM|RegYMM, RegXMM|RegYMM }
=20
 // AVX gather instructions
-vgatherdpd, 0x6692, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW1|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Qword|Unsp=
ecified|BaseIndex, RegXMM }
-vgatherdpd, 0x6692, None, CpuAVX2, Modrm|Vex=3D2|Space0F38|VexVVVV|VexW1|N=
o_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegYMM, Qword|=
Unspecified|BaseIndex, RegYMM }
+vgatherdpd, 0x6692, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW1|Check=
RegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXM=
M|RegYMM, Qword|Unspecified|BaseIndex, RegXMM|RegYMM }
 vgatherdps, 0x6692, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW0|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Dword|Unsp=
ecified|BaseIndex, RegXMM }
 vgatherdps, 0x6692, None, CpuAVX2, Modrm|Vex=3D2|Space0F38|VexVVVV|VexW0|N=
o_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB256, { RegYMM, Dword|=
Unspecified|BaseIndex, RegYMM }
 vgatherqpd, 0x6693, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW1|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Qword|Unsp=
ecified|BaseIndex, RegXMM }
@@ -1837,8 +1836,7 @@ vgatherqps, 0x6693, None, CpuAVX2, Modrm|Vex|Space0F3=
8|VexVVVV|VexW0|No_bSuf|No_
 vgatherqps, 0x6693, None, CpuAVX2, Modrm|Vex=3D2|Space0F38|VexVVVV|VexW0|N=
o_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB256, { RegXMM, Dword|=
Unspecified|BaseIndex, RegXMM }
 vpgatherdd, 0x6690, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW0|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Dword|Unsp=
ecified|BaseIndex, RegXMM }
 vpgatherdd, 0x6690, None, CpuAVX2, Modrm|Vex=3D2|Space0F38|VexVVVV|VexW0|N=
o_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB256, { RegYMM, Dword|=
Unspecified|BaseIndex, RegYMM }
-vpgatherdq, 0x6690, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW1|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Qword|Unsp=
ecified|BaseIndex, RegXMM }
-vpgatherdq, 0x6690, None, CpuAVX2, Modrm|Vex=3D2|Space0F38|VexVVVV|VexW1|N=
o_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegYMM, Qword|=
Unspecified|BaseIndex, RegYMM }
+vpgatherdq, 0x6690, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW1|Check=
RegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXM=
M|RegYMM, Qword|Unspecified|BaseIndex, RegXMM|RegYMM }
 vpgatherqd, 0x6691, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW0|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Dword|Unsp=
ecified|BaseIndex, RegXMM }
 vpgatherqd, 0x6691, None, CpuAVX2, Modrm|Vex=3D2|Space0F38|VexVVVV|VexW0|N=
o_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB256, { RegXMM, Dword|=
Unspecified|BaseIndex, RegXMM }
 vpgatherqq, 0x6691, None, CpuAVX2, Modrm|Vex|Space0F38|VexVVVV|VexW1|No_bS=
uf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|VecSIB128, { RegXMM, Qword|Unsp=
ecified|BaseIndex, RegXMM }
diff --git a/opcodes/i386-tbl.h b/opcodes/i386-tbl.h
index 31fa20842dd..744ac73872a 100644
--- a/opcodes/i386-tbl.h
+++ b/opcodes/i386-tbl.h
@@ -38043,7 +38043,7 @@ const insn_template i386_optab[] =3D
       { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  1, 1, 1, 0, 0, 0 } } } },
   { "vgatherdpd", 0x92, 3, None,
-    { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
+    { 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 1, 0, 1,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -38054,28 +38054,11 @@ const insn_template i386_optab[] =3D
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0 } },
     { { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  1, 0, 0, 0, 0, 0 } },
-      { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0,
-	  0, 0, 0, 0, 1, 0 } },
-      { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  1, 0, 0, 0, 0, 0 } } } },
-  { "vgatherdpd", 0x92, 3, None,
-    { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
-      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 2, 1, 0, 1,
-      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0 } },
-    { { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  0, 1, 0, 0, 0, 0 } },
+	  1, 1, 0, 0, 0, 0 } },
       { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0,
 	  0, 0, 0, 0, 1, 0 } },
       { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  0, 1, 0, 0, 0, 0 } } } },
+	  1, 1, 0, 0, 0, 0 } } } },
   { "vgatherdpd", 0x92, 2, None,
     { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 1, 0, 2,
@@ -38423,7 +38406,7 @@ const insn_template i386_optab[] =3D
       { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 1, 0, 0, 0, 0 } } } },
   { "vpgatherdq", 0x90, 3, None,
-    { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
+    { 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 1, 0, 1,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -38434,28 +38417,11 @@ const insn_template i386_optab[] =3D
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0 } },
     { { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  1, 0, 0, 0, 0, 0 } },
-      { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0,
-	  0, 0, 0, 0, 1, 0 } },
-      { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  1, 0, 0, 0, 0, 0 } } } },
-  { "vpgatherdq", 0x90, 3, None,
-    { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
-      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 2, 2, 1, 0, 1,
-      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
-    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0 } },
-    { { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  0, 1, 0, 0, 0, 0 } },
+	  1, 1, 0, 0, 0, 0 } },
       { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0,
 	  0, 0, 0, 0, 1, 0 } },
       { { 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	  0, 1, 0, 0, 0, 0 } } } },
+	  1, 1, 0, 0, 0, 0 } } } },
   { "vpgatherdq", 0x90, 2, None,
     { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 1, 0, 2,