diff options
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 39581f1..fa4ea11 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -620,6 +620,9 @@ static enum evexw1 } evexwig; +/* Value to encode in EVEX RC bits, for SAE-only instructions. */ +static enum rc_type evexrcig = rne; + /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ static symbolS *GOT_symbol; @@ -3345,7 +3348,7 @@ build_evex_prefix (void) if (i.rounding->type != saeonly) i.vex.bytes[3] |= 0x10 | (i.rounding->type << 5); else - i.vex.bytes[3] |= 0x10; + i.vex.bytes[3] |= 0x10 | (evexrcig << 5); } if (i.mask && i.mask->mask) @@ -9546,6 +9549,7 @@ const char *md_shortopts = "qn"; #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17) #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18) #define OPTION_OMIT_LOCK_PREFIX (OPTION_MD_BASE + 19) +#define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20) struct option md_longopts[] = { @@ -9576,6 +9580,7 @@ struct option md_longopts[] = {"mbig-obj", no_argument, NULL, OPTION_MBIG_OBJ}, #endif {"momit-lock-prefix", required_argument, NULL, OPTION_OMIT_LOCK_PREFIX}, + {"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG}, {NULL, no_argument, NULL, 0} }; size_t md_longopts_size = sizeof (md_longopts); @@ -9848,6 +9853,19 @@ md_parse_option (int c, char *arg) as_fatal (_("invalid -mevexlig= option: `%s'"), arg); break; + case OPTION_MEVEXRCIG: + if (strcmp (arg, "rne") == 0) + evexrcig = rne; + else if (strcmp (arg, "rd") == 0) + evexrcig = rd; + else if (strcmp (arg, "ru") == 0) + evexrcig = ru; + else if (strcmp (arg, "rz") == 0) + evexrcig = rz; + else + as_fatal (_("invalid -mevexrcig= option: `%s'"), arg); + break; + case OPTION_MEVEXWIG: if (strcmp (arg, "0") == 0) evexwig = evexw0; @@ -10013,6 +10031,10 @@ md_show_usage (FILE *stream) -mevexwig=[0|1] encode EVEX instructions with specific EVEX.W value\n\ for EVEX.W bit ignored instructions\n")); fprintf (stream, _("\ + -mevexrcig=[rne|rd|ru|rz]\n\ + encode EVEX instructions with specific EVEX.RC value\n\ + for SAE-only ignored instructions\n")); + fprintf (stream, _("\ -mmnemonic=[att|intel] use AT&T/Intel mnemonic\n")); fprintf (stream, _("\ -msyntax=[att|intel] use AT&T/Intel syntax\n")); |