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[PATCH v2 1/4] x86: don't show suffixes for to-scalar-int conversion insns
- From: "Jan Beulich" <JBeulich at suse dot com>
- To: <binutils at sourceware dot org>
- Cc: "H.J. Lu" <hjl dot tools at gmail dot com>
- Date: Tue, 27 Mar 2018 00:25:05 -0600
- Subject: [PATCH v2 1/4] x86: don't show suffixes for to-scalar-int conversion insns
- References: <5AB9FE5F02000078001B653B@prv1-mh.provo.novell.com>
In the course of folding their patterns (possible now that the pointless
and partly even bogus VecESize are no longer in the way) I've noticed
that vcvt*2usi, other than their vcvt*2si counterparts, don't allow for
any suffixes. As that is supposedly intentional, make the disassembler
consistently omit suffixes for all to-scalar-int conversion insns.
gas/
2018-03-27 Jan Beulich <jbeulich@suse.com>
* testsuite/gas/i386/ilp32/x86-64-simd-suffix.d,
testsuite/gas/i386/x86-64-simd-suffix.d: Drop q suffix from
cvt*2si.
opcodes/
2018-03-27 Jan Beulich <jbeulich@suse.com>
* i386-dis.c (prefix_table): Drop Y for cvt*2si.
(vex_len_table): Drop Y for vcvt*2si.
(putop): Replace plain 'Y' handling by abort().
---
v2: Split original patch into pieces. Drop all suffixes instead of
making their addition consistent.
--- a/gas/testsuite/gas/i386/ilp32/x86-64-simd-suffix.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-simd-suffix.d
@@ -61,15 +61,15 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: 0f 2a 00 cvtpi2ps \(%rax\),%xmm0
[ ]*[a-f0-9]+: 0f 2d 00 cvtps2pi \(%rax\),%mm0
[ ]*[a-f0-9]+: f2 0f 2d 00 cvtsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 2c 00 cvttsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5a 00 cvtsd2ss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5a 00 cvtss2sd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 2d 00 cvtss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f3 0f 2c 00 cvttss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5e 00 divsd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5e 00 divss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f2 0f 5f 00 maxsd \(%rax\),%xmm0
@@ -180,15 +180,15 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: 0f 2a 00 cvtpi2ps \(%rax\),%xmm0
[ ]*[a-f0-9]+: 0f 2d 00 cvtps2pi \(%rax\),%mm0
[ ]*[a-f0-9]+: f2 0f 2d 00 cvtsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 2c 00 cvttsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5a 00 cvtsd2ss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5a 00 cvtss2sd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 2d 00 cvtss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f3 0f 2c 00 cvttss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5e 00 divsd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5e 00 divss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f2 0f 5f 00 maxsd \(%rax\),%xmm0
--- a/gas/testsuite/gas/i386/x86-64-simd-suffix.d
+++ b/gas/testsuite/gas/i386/x86-64-simd-suffix.d
@@ -61,15 +61,15 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: 0f 2a 00 cvtpi2ps \(%rax\),%xmm0
[ ]*[a-f0-9]+: 0f 2d 00 cvtps2pi \(%rax\),%mm0
[ ]*[a-f0-9]+: f2 0f 2d 00 cvtsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 2c 00 cvttsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5a 00 cvtsd2ss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5a 00 cvtss2sd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 2d 00 cvtss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f3 0f 2c 00 cvttss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5e 00 divsd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5e 00 divss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f2 0f 5f 00 maxsd \(%rax\),%xmm0
@@ -180,15 +180,15 @@ Disassembly of section .text:
[ ]*[a-f0-9]+: 0f 2a 00 cvtpi2ps \(%rax\),%xmm0
[ ]*[a-f0-9]+: 0f 2d 00 cvtps2pi \(%rax\),%mm0
[ ]*[a-f0-9]+: f2 0f 2d 00 cvtsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2d 00 cvtsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 2c 00 cvttsd2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f2 48 0f 2c 00 cvttsd2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5a 00 cvtsd2ss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5a 00 cvtss2sd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 2d 00 cvtss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2d 00 cvtss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f3 0f 2c 00 cvttss2si \(%rax\),%eax
-[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2siq \(%rax\),%rax
+[ ]*[a-f0-9]+: f3 48 0f 2c 00 cvttss2si \(%rax\),%rax
[ ]*[a-f0-9]+: f2 0f 5e 00 divsd \(%rax\),%xmm0
[ ]*[a-f0-9]+: f3 0f 5e 00 divss \(%rax\),%xmm0
[ ]*[a-f0-9]+: f2 0f 5f 00 maxsd \(%rax\),%xmm0
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -2536,8 +2536,7 @@ struct dis386 {
prefix and behave as 'S' otherwise
'W' => print 'b', 'w' or 'l' ('d' in Intel mode)
'X' => print 's', 'd' depending on data16 prefix (for XMM)
- 'Y' => 'q' if instruction has an REX 64bit overwrite prefix and
- suffix_always is true.
+ 'Y' unused.
'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
'!' => change condition from true to false or from false to true.
'%' => add 1 upper case letter to the macro.
@@ -3925,17 +3924,17 @@ static const struct dis386 prefix_table[
/* PREFIX_0F2C */
{
{ "cvttps2pi", { MXC, EXq }, PREFIX_OPCODE },
- { "cvttss2siY", { Gv, EXd }, PREFIX_OPCODE },
+ { "cvttss2si", { Gv, EXd }, PREFIX_OPCODE },
{ "cvttpd2pi", { MXC, EXx }, PREFIX_OPCODE },
- { "cvttsd2siY", { Gv, EXq }, PREFIX_OPCODE },
+ { "cvttsd2si", { Gv, EXq }, PREFIX_OPCODE },
},
/* PREFIX_0F2D */
{
{ "cvtps2pi", { MXC, EXq }, PREFIX_OPCODE },
- { "cvtss2siY", { Gv, EXd }, PREFIX_OPCODE },
+ { "cvtss2si", { Gv, EXd }, PREFIX_OPCODE },
{ "cvtpd2pi", { MXC, EXx }, PREFIX_OPCODE },
- { "cvtsd2siY", { Gv, EXq }, PREFIX_OPCODE },
+ { "cvtsd2si", { Gv, EXq }, PREFIX_OPCODE },
},
/* PREFIX_0F2E */
@@ -9547,26 +9546,26 @@ static const struct dis386 vex_len_table
/* VEX_LEN_0F2C_P_1 */
{
- { "vcvttss2siY", { Gv, EXdScalar }, 0 },
- { "vcvttss2siY", { Gv, EXdScalar }, 0 },
+ { "vcvttss2si", { Gv, EXdScalar }, 0 },
+ { "vcvttss2si", { Gv, EXdScalar }, 0 },
},
/* VEX_LEN_0F2C_P_3 */
{
- { "vcvttsd2siY", { Gv, EXqScalar }, 0 },
- { "vcvttsd2siY", { Gv, EXqScalar }, 0 },
+ { "vcvttsd2si", { Gv, EXqScalar }, 0 },
+ { "vcvttsd2si", { Gv, EXqScalar }, 0 },
},
/* VEX_LEN_0F2D_P_1 */
{
- { "vcvtss2siY", { Gv, EXdScalar }, 0 },
- { "vcvtss2siY", { Gv, EXdScalar }, 0 },
+ { "vcvtss2si", { Gv, EXdScalar }, 0 },
+ { "vcvtss2si", { Gv, EXdScalar }, 0 },
},
/* VEX_LEN_0F2D_P_3 */
{
- { "vcvtsd2siY", { Gv, EXqScalar }, 0 },
- { "vcvtsd2siY", { Gv, EXqScalar }, 0 },
+ { "vcvtsd2si", { Gv, EXqScalar }, 0 },
+ { "vcvtsd2si", { Gv, EXqScalar }, 0 },
},
/* VEX_LEN_0F2E_P_0 */
@@ -14414,16 +14413,7 @@ case_S:
break;
case 'Y':
if (l == 0 && len == 1)
- {
- if (intel_syntax || !(sizeflag & SUFFIX_ALWAYS))
- break;
- if (rex & REX_W)
- {
- USED_REX (REX_W);
- *obufp++ = 'q';
- }
- break;
- }
+ abort ();
else
{
if (l != 1 || len != 2 || last[0] != 'X')