diff options
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/NEWS | 2 | ||||
| -rw-r--r-- | gas/config/tc-i386.c | 6 | ||||
| -rw-r--r-- | gas/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/i386.exp | 1 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/rep-bsf.d | 11 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/rep-bsf.s | 3 |
7 files changed, 32 insertions, 3 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index aca611ea6f..5698397c20 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +2012-06-22 Roland McGrath <mcgrathr@google.com> + + * config/tc-i386.c (parse_insn): Don't complain about REP prefix + when the template has opcode_modifier.repprefixok set. + * NEWS: Mention the change. + 2012-06-18 Iain Sandoe <iain@codesourcery.com> * configure.in: Check DECLS for free, getenv, malloc, realloc, @@ -13,6 +13,8 @@ * Add support for the Adapteva EPIPHANY architecture. +* For x86, allow 'rep bsf' or 'rep bsr' syntax. + Changes in 2.22: * Add support for the Tilera TILEPro and TILE-Gx architectures. diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index d2b492762f..4701e6dbc3 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -3528,13 +3528,13 @@ skip: as_warn (_("use .code16 to ensure correct addressing mode")); } - /* Check for rep/repne without a string instruction. */ + /* Check for rep/repne without a string (or other allowed) instruction. */ if (expecting_string_instruction) { static templates override; for (t = current_templates->start; t < current_templates->end; ++t) - if (t->opcode_modifier.isstring) + if (t->opcode_modifier.repprefixok) break; if (t >= current_templates->end) { @@ -3543,7 +3543,7 @@ skip: return NULL; } for (override.start = t; t < current_templates->end; ++t) - if (!t->opcode_modifier.isstring) + if (!t->opcode_modifier.repprefixok) break; override.end = t; current_templates = &override; diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog index 1129df01bf..59916b6e07 100644 --- a/gas/testsuite/ChangeLog +++ b/gas/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2012-06-22 Roland McGrath <mcgrathr@google.com> + + * gas/i386/rep-bsf.d: New file. + * gas/i386/rep-bsf.s: New file. + * gas/i386/i386.exp: Add the new test. + 2012-06-13 H.J. Lu <hongjiu.lu@intel.com> * gas/i386/ilp32/x86-64-dc_a.d: New. diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp index 89adf696a0..2f055807b0 100644 --- a/gas/testsuite/gas/i386/i386.exp +++ b/gas/testsuite/gas/i386/i386.exp @@ -264,6 +264,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]] # Miscellaneous tests. run_dump_test "pr12589-1" + run_dump_test "rep-bsf" set ASFLAGS "$old_ASFLAGS" } diff --git a/gas/testsuite/gas/i386/rep-bsf.d b/gas/testsuite/gas/i386/rep-bsf.d new file mode 100644 index 0000000000..c0a47ddff4 --- /dev/null +++ b/gas/testsuite/gas/i386/rep-bsf.d @@ -0,0 +1,11 @@ +#objdump: -d +#name: rep prefix on bsf/bsr + +.*: +file format .* + +Disassembly of section .text: + +0+000 <bsf>: +\s*[0-9]+:\s+f3 0f bc c1\s+tzcnt %ecx,%eax +0+004 <bsr>: +\s*[0-9]+:\s+f3 0f bd c1\s+lzcnt %ecx,%eax diff --git a/gas/testsuite/gas/i386/rep-bsf.s b/gas/testsuite/gas/i386/rep-bsf.s new file mode 100644 index 0000000000..10a12aa5e5 --- /dev/null +++ b/gas/testsuite/gas/i386/rep-bsf.s @@ -0,0 +1,3 @@ + .text +bsf: rep bsf %ecx, %eax +bsr: rep bsr %ecx, %eax |