From 70df6fc9bc9e114f46532dbe58caa98e495b119c Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 14 Sep 2018 11:25:01 -0700 Subject: [PATCH] x86: Handle unsupported static rounding in vcvt[u]si2sd in 32-bit mode Update x86 disassembler to handle the unsupported static rounding in vcvt[u]si2sd in 32-bit mode. gas/ PR binutils/23655 * testsuite/gas/i386/evex.d: Updated. opcodes/ PR binutils/23655 * i386-dis-evex.h: Replace EXxEVexR with EXxEVexR64 for vcvtsi2sd%LQ and vcvtusi2sd%LQ. * i386-dis.c (EXxEVexR64): New. (evex_rounding_64_mode): Likewise. (OP_Rounding): Handle evex_rounding_64_mode. --- gas/ChangeLog | 5 +++++ gas/testsuite/gas/i386/evex.d | 4 ++-- opcodes/ChangeLog | 9 +++++++++ opcodes/i386-dis-evex.h | 4 ++-- opcodes/i386-dis.c | 11 +++++++++++ 5 files changed, 29 insertions(+), 4 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index 52346d74cd..7b24076a03 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2018-09-14 H.J. Lu + + PR binutils/23655 + * testsuite/gas/i386/evex.d: Updated. + 2018-09-14 H.J. Lu PR binutils/23655 diff --git a/gas/testsuite/gas/i386/evex.d b/gas/testsuite/gas/i386/evex.d index ffbcdc1c09..2fbe295b86 100644 --- a/gas/testsuite/gas/i386/evex.d +++ b/gas/testsuite/gas/i386/evex.d @@ -8,9 +8,9 @@ Disassembly of section .text: 0+ <_start>: +[a-f0-9]+: 62 f1 d6 38 2a f0 vcvtsi2ssl %eax,\{rd-sae\},%xmm5,%xmm6 - +[a-f0-9]+: 62 f1 d7 38 2a f0 vcvtsi2sdl %eax,\{rd-sae\},%xmm5,%xmm6 + +[a-f0-9]+: 62 f1 d7 38 2a f0 vcvtsi2sdl %eax,\(bad\),%xmm5,%xmm6 +[a-f0-9]+: 62 f1 d6 08 7b f0 vcvtusi2ssl %eax,%xmm5,%xmm6 +[a-f0-9]+: 62 f1 d7 08 7b f0 vcvtusi2sdl %eax,%xmm5,%xmm6 +[a-f0-9]+: 62 f1 d6 38 7b f0 vcvtusi2ssl %eax,\{rd-sae\},%xmm5,%xmm6 - +[a-f0-9]+: 62 f1 d7 38 7b f0 vcvtusi2sdl %eax,\{rd-sae\},%xmm5,%xmm6 + +[a-f0-9]+: 62 f1 d7 38 7b f0 vcvtusi2sdl %eax,\(bad\),%xmm5,%xmm6 #pass diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 7def411b04..571aa6c779 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,12 @@ +2018-09-14 H.J. Lu + + PR binutils/23655 + * i386-dis-evex.h: Replace EXxEVexR with EXxEVexR64 for + vcvtsi2sd%LQ and vcvtusi2sd%LQ. + * i386-dis.c (EXxEVexR64): New. + (evex_rounding_64_mode): Likewise. + (OP_Rounding): Handle evex_rounding_64_mode. + 2018-09-14 H.J. Lu PR binutils/23655 diff --git a/opcodes/i386-dis-evex.h b/opcodes/i386-dis-evex.h index f59c7cc872..932f10a5f1 100644 --- a/opcodes/i386-dis-evex.h +++ b/opcodes/i386-dis-evex.h @@ -3051,7 +3051,7 @@ static const struct dis386 evex_table[][256] = { /* EVEX_W_0F2A_P_3 */ { { "vcvtsi2sd%LQ", { XMScalar, VexScalar, Ed }, 0 }, - { "vcvtsi2sd%LQ", { XMScalar, VexScalar, EXxEVexR, Edqa }, 0 }, + { "vcvtsi2sd%LQ", { XMScalar, VexScalar, EXxEVexR64, Edqa }, 0 }, }, /* EVEX_W_0F2B_P_0 */ { @@ -3393,7 +3393,7 @@ static const struct dis386 evex_table[][256] = { /* EVEX_W_0F7B_P_3 */ { { "vcvtusi2sd%LQ", { XMScalar, VexScalar, Ed }, 0 }, - { "vcvtusi2sd%LQ", { XMScalar, VexScalar, EXxEVexR, Edqa }, 0 }, + { "vcvtusi2sd%LQ", { XMScalar, VexScalar, EXxEVexR64, Edqa }, 0 }, }, /* EVEX_W_0F7E_P_1 */ { diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 83c610703d..9453e52d64 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -448,6 +448,7 @@ fetch_data (struct disassemble_info *info, bfd_byte *addr) #define VPCOM { VPCOM_Fixup, 0 } #define EXxEVexR { OP_Rounding, evex_rounding_mode } +#define EXxEVexR64 { OP_Rounding, evex_rounding_64_mode } #define EXxEVexS { OP_Rounding, evex_sae_mode } #define XMask { OP_Mask, mask_mode } @@ -633,6 +634,8 @@ enum /* Static rounding. */ evex_rounding_mode, + /* Static rounding, 64-bit mode only. */ + evex_rounding_64_mode, /* Supress all exceptions. */ evex_sae_mode, @@ -17950,11 +17953,19 @@ OP_Rounding (int bytemode, int sizeflag ATTRIBUTE_UNUSED) { if (!vex.evex || (bytemode != evex_rounding_mode + && bytemode != evex_rounding_64_mode && bytemode != evex_sae_mode)) abort (); if (modrm.mod == 3 && vex.b) switch (bytemode) { + case evex_rounding_64_mode: + if (address_mode != mode_64bit) + { + oappend ("(bad)"); + break; + } + /* Fall through. */ case evex_rounding_mode: oappend (names_rounding[vex.ll]); break; -- 2.34.1