diff options
| author | Jan Beulich <jbeulich@suse.com> | 2023-12-01 08:27:49 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2023-12-01 08:27:49 +0100 |
| commit | 175ce60f0ff7f3423b49c0d41a88a0c51a08ac03 (patch) | |
| tree | 843ddab0a6d93c961c9e6d543b4db50d3f9e4a01 /gas | |
| parent | b5482fe535884c9fdb5c45c5627ec99e54c0e9d9 (diff) | |
| download | gdb-175ce60f0ff7f3423b49c0d41a88a0c51a08ac03.zip gdb-175ce60f0ff7f3423b49c0d41a88a0c51a08ac03.tar.gz gdb-175ce60f0ff7f3423b49c0d41a88a0c51a08ac03.tar.bz2 | |
x86: suppress optimization after potential non-insn
Just like avoiding to do other transformations potentially affected by
stand-alone prefixes or direct data emission, also avoid optimization
on the following insn.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/config/tc-i386.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 059dd49..f2f1e3b 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -5120,6 +5120,11 @@ md_assemble (char *line) retry: init_globals (); + /* Suppress optimization when the last thing we saw may not have been + a proper instruction (e.g. a stand-alone prefix or .byte). */ + if (last_insn->kind != last_insn_other) + i.no_optimize = true; + /* First parse an instruction mnemonic & call i386_operand for the operands. We assume that the scrubber has arranged it so that line[0] is the valid start of a (possibly prefixed) mnemonic. */ |