diff options
| author | DJ Delorie <dj@redhat.com> | 2004-12-23 20:21:08 +0000 |
|---|---|---|
| committer | DJ Delorie <dj@redhat.com> | 2004-12-23 20:21:08 +0000 |
| commit | 8de66c86927abc7801f623b5707cdae4ac7c2b48 (patch) | |
| tree | 45fdcfc18f2bc2f5830cf0b3c5a4ce6d0ff79394 /gcc/genrecog.c | |
| parent | b56bd563d87264506bfe723d4327ad8a5530eccf (diff) | |
* genrecog.c (did_you_mean_codes): New.
(compute_predicate_codes): Fail unmatched codes.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@92565 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/genrecog.c')
| -rw-r--r-- | gcc/genrecog.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/genrecog.c b/gcc/genrecog.c index 64cd905b0ca..2936f80afc7 100644 --- a/gcc/genrecog.c +++ b/gcc/genrecog.c @@ -226,6 +226,9 @@ static int error_count; #define TRISTATE_NOT(a) \ ((a) == I ? I : !(a)) +/* 0 means no warning about that code yet, 1 means warned. */ +static char did_you_mean_codes[NUM_RTX_CODE]; + /* Recursively calculate the set of rtx codes accepted by the predicate expression EXP, writing the result to CODES. */ static void @@ -285,14 +288,30 @@ compute_predicate_codes (rtx exp, char codes[NUM_RTX_CODE]) while ((code = scan_comma_elt (&next_code)) != 0) { size_t n = next_code - code; + int found_it = 0; for (i = 0; i < NUM_RTX_CODE; i++) if (!strncmp (code, GET_RTX_NAME (i), n) && GET_RTX_NAME (i)[n] == '\0') { codes[i] = Y; + found_it = 1; break; } + if (!found_it) + { + message_with_line (pattern_lineno, "match_code \"%.*s\" matches nothing", n, code); + error_count ++; + for (i = 0; i < NUM_RTX_CODE; i++) + if (!strncasecmp (code, GET_RTX_NAME (i), n) + && GET_RTX_NAME (i)[n] == '\0' + && !did_you_mean_codes[i]) + { + did_you_mean_codes[i] = 1; + message_with_line (pattern_lineno, "(did you mean \"%s\"?)", GET_RTX_NAME (i)); + } + } + } } break; |