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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-29 00:44:21 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-29 00:44:21 +0000 |
| commit | f3653a6424c77c01335e9e8aa3c63d4a62f1f7dc (patch) | |
| tree | d7a7f8b66cdb1d768634a359009e273bb3b645dd /gcc/stmt.c | |
| parent | 19f716e5141690248d566ab28cc6d03049d28b46 (diff) | |
| download | gcc-f3653a6424c77c01335e9e8aa3c63d4a62f1f7dc.tar.gz | |
* local-alloc.c (requires_inout): Don't use reserved range for
EXTRA_CONSTRAINTS; use anything not matched by REG_CLASS_FROM_LETTER.
* recog.c (asm_operand_ok): Likewise.
(preprocess_constraints, constrain_operands): Likewise.
* regclass.c (record_reg_classes): Likewise.
* reload.c (find_reloads): Likewise.
* reload1.c (maybe_fix_stack_asms): Likewise.
(reload_cse_simplify_operands): Likewise.
* stmt.c (expand_asm_operands): Likewise.
* md.texi: Update constraints documentation.
* tm.texi (EXTRA_CONSTRAINT): Update.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36023 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/stmt.c')
| -rw-r--r-- | gcc/stmt.c | 51 |
1 files changed, 42 insertions, 9 deletions
diff --git a/gcc/stmt.c b/gcc/stmt.c index d0dbb9ed762..7b27f87fe80 100644 --- a/gcc/stmt.c +++ b/gcc/stmt.c @@ -1508,17 +1508,34 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line) break; case 'g': case 'X': -#ifdef EXTRA_CONSTRAINT - case 'Q': case 'R': case 'S': case 'T': case 'U': -#endif allows_reg = 1; allows_mem = 1; break; case 'p': case 'r': - default: allows_reg = 1; break; + + default: + if (! ISALPHA (constraint[j])) + { + error ("invalid punctuation `%c' in constraint", + constraint[j]); + return; + } + if (REG_CLASS_FROM_LETTER (constraint[j]) != NO_REGS) + allows_reg = 1; +#ifdef EXTRA_CONSTRAINT + else + { + /* Otherwise we can't assume anything about the nature of + the constraint except that it isn't purely registers. + Treat it like "g" and hope for the best. */ + allows_reg = 1; + allows_mem = 1; + } +#endif + break; } /* If an output operand is not a decl or indirect ref and our constraint @@ -1681,18 +1698,34 @@ expand_asm_operands (string, outputs, inputs, clobbers, vol, filename, line) /* ... fall through ... */ case 'p': case 'r': - default: allows_reg = 1; break; case 'g': case 'X': -#ifdef EXTRA_CONSTRAINT - case 'Q': case 'R': case 'S': case 'T': case 'U': -#endif - allows_reg = 1; allows_mem = 1; break; + + default: + if (! ISALPHA (constraint[j])) + { + error ("invalid punctuation `%c' in constraint", + constraint[j]); + return; + } + if (REG_CLASS_FROM_LETTER (constraint[j]) != NO_REGS) + allows_reg = 1; +#ifdef EXTRA_CONSTRAINT + else + { + /* Otherwise we can't assume anything about the nature of + the constraint except that it isn't purely registers. + Treat it like "g" and hope for the best. */ + allows_reg = 1; + allows_mem = 1; + } +#endif + break; } if (! allows_reg && allows_mem) |