diff options
Diffstat (limited to 'gcc/genconfig.c')
| -rw-r--r-- | gcc/genconfig.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/genconfig.c b/gcc/genconfig.c index 820e1d8..be06d83 100644 --- a/gcc/genconfig.c +++ b/gcc/genconfig.c @@ -126,7 +126,15 @@ walk_insn_part (part, recog_p, non_pc_set_src) return; case IF_THEN_ELSE: - if (recog_p && non_pc_set_src) + /* Only consider this machine as having a conditional move if the + two arms of the IF_THEN_ELSE are both MATCH_OPERAND. Otherwise, + we have some specific IF_THEN_ELSE construct (like the doz + instruction on the RS/6000) that can't be used in the general + context we want it for. */ + + if (recog_p && non_pc_set_src + && GET_CODE (XEXP (part, 1)) == MATCH_OPERAND + && GET_CODE (XEXP (part, 2)) == MATCH_OPERAND) have_cmove_flag = 1; break; |