gas/
2005-12-14 Jan Beulich <jbeulich@novell.com> * config/tc-i386.c (add_prefix): More fine-grained handling of REX prefixes. Or new prefix value into i.prefix instead of assigning. gas/testsuite/ 2005-12-14 Jan Beulich <jbeulich@novell.com> * gas/i386/rex.[sd]: New. * gas/i386/i386.exp: Run new test.
This commit is contained in:
Jan Beulich
parent
eda87aba05
commit
b190548998
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@ -1,3 +1,9 @@
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2005-12-14 Jan Beulich <jbeulich@novell.com>
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* config/tc-i386.c (add_prefix): More fine-grained handling of
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REX prefixes. Or new prefix value into i.prefix instead of
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assigning.
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2005-12-13 DJ Delorie <dj@redhat.com>
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* config/tc-m32c.c (m32c_md_end): Only pad code sections.
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@ -730,55 +730,66 @@ add_prefix (prefix)
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unsigned int prefix;
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{
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int ret = 1;
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int q;
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unsigned int q;
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if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16
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&& flag_code == CODE_64BIT)
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q = REX_PREFIX;
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else
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switch (prefix)
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{
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default:
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abort ();
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case CS_PREFIX_OPCODE:
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case DS_PREFIX_OPCODE:
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case ES_PREFIX_OPCODE:
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case FS_PREFIX_OPCODE:
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case GS_PREFIX_OPCODE:
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case SS_PREFIX_OPCODE:
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q = SEG_PREFIX;
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break;
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case REPNE_PREFIX_OPCODE:
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case REPE_PREFIX_OPCODE:
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ret = 2;
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/* fall thru */
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case LOCK_PREFIX_OPCODE:
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q = LOCKREP_PREFIX;
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break;
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case FWAIT_OPCODE:
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q = WAIT_PREFIX;
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break;
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case ADDR_PREFIX_OPCODE:
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q = ADDR_PREFIX;
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break;
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case DATA_PREFIX_OPCODE:
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q = DATA_PREFIX;
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break;
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}
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if (i.prefix[q] != 0)
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{
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as_bad (_("same type of prefix used twice"));
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return 0;
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if ((i.prefix[REX_PREFIX] & prefix & REX_MODE64)
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|| ((i.prefix[REX_PREFIX] & (REX_EXTX | REX_EXTY | REX_EXTZ))
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&& (prefix & (REX_EXTX | REX_EXTY | REX_EXTZ))))
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ret = 0;
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q = REX_PREFIX;
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}
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else
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{
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switch (prefix)
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{
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default:
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abort ();
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case CS_PREFIX_OPCODE:
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case DS_PREFIX_OPCODE:
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case ES_PREFIX_OPCODE:
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case FS_PREFIX_OPCODE:
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case GS_PREFIX_OPCODE:
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case SS_PREFIX_OPCODE:
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q = SEG_PREFIX;
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break;
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case REPNE_PREFIX_OPCODE:
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case REPE_PREFIX_OPCODE:
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ret = 2;
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/* fall thru */
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case LOCK_PREFIX_OPCODE:
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q = LOCKREP_PREFIX;
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break;
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case FWAIT_OPCODE:
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q = WAIT_PREFIX;
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break;
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case ADDR_PREFIX_OPCODE:
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q = ADDR_PREFIX;
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break;
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case DATA_PREFIX_OPCODE:
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q = DATA_PREFIX;
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break;
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}
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if (i.prefix[q] != 0)
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ret = 0;
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}
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i.prefixes += 1;
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i.prefix[q] = prefix;
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if (ret)
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{
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if (!i.prefix[q])
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++i.prefixes;
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i.prefix[q] |= prefix;
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}
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else
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as_bad (_("same type of prefix used twice"));
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return ret;
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}
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@ -1,3 +1,8 @@
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2005-12-14 Jan Beulich <jbeulich@novell.com>
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* gas/i386/rex.[sd]: New.
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* gas/i386/i386.exp: Run new test.
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2005-12-12 Nathan Sidwell <nathan@codesourcery.com>
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* gas/mt: Renamed from ms1 dir. Update file names as needed.
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@ -133,6 +133,21 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
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run_dump_test "immed64"
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run_dump_test "x86-64-prescott"
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if { ![istarget "*-*-aix*"]
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&& ![istarget "*-*-beos*"]
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&& ![istarget "*-*-*bsd*"]
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&& ![istarget "*-*-chaos*"]
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&& ![istarget "*-*-kaos*"]
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&& ![istarget "*-*-lynx*"]
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&& ![istarget "*-*-moss*"]
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&& ![istarget "*-*-nto-qnx*"]
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&& ![istarget "*-*-rtems*"]
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&& ![istarget "*-*-sco*"]
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&& ![istarget "*-*-solaris*"]
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&& ![istarget "*-*-sysv*"] } then {
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run_dump_test "rex"
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}
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# For ELF targets verify that @unwind works.
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if { ([istarget "*-*-elf*"] || [istarget "*-*-linux*"]
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|| [istarget "*-*-solaris2.*"])
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@ -0,0 +1,17 @@
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#objdump: -dw
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#name: x86-64 manual rex prefix use
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.*: +file format elf64-x86-64
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Disassembly of section .text:
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0+ <_start>:
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[ ]*[0-9a-f]+:[ ]+40 0f ae 00[ ]+rex fxsavel?[ ]+\(%rax\)
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[ ]*[0-9a-f]+:[ ]+48 0f ae 00[ ]+(rex64 )?fxsaveq?[ ]+\(%rax\)
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[ ]*[0-9a-f]+:[ ]+41 0f ae 00[ ]+fxsavel?[ ]+\(%r8\)
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[ ]*[0-9a-f]+:[ ]+49 0f ae 00[ ]+(rex64Z? )?fxsaveq?[ ]+\(%r8\)
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[ ]*[0-9a-f]+:[ ]+42 0f ae 04 05 00 00 00 00[ ]+fxsavel?[ ]+(0x0)?\(,%r8(,1)?\)
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[ ]*[0-9a-f]+:[ ]+4a 0f ae 04 05 00 00 00 00[ ]+(rex64Y? )?fxsaveq?[ ]+(0x0)?\(,%r8(,1)?\)
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[ ]*[0-9a-f]+:[ ]+43 0f ae 04 00[ ]+fxsavel?[ ]+\(%r8,%r8(,1)?\)
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[ ]*[0-9a-f]+:[ ]+4b 0f ae 04 00[ ]+(rex64(YZ)? )?fxsaveq?[ ]+\(%r8,%r8(,1)?\)
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#pass
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@ -0,0 +1,11 @@
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.text
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_start:
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rex/fxsave (%rax)
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rex64/fxsave (%rax)
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rex/fxsave (%r8)
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rex64/fxsave (%r8)
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rex/fxsave (,%r8)
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rex64/fxsave (,%r8)
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rex/fxsave (%r8,%r8)
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rex64/fxsave (%r8,%r8)
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