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| author | Richard Henderson <rth@cygnus.com> | 2000-08-28 17:44:21 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2000-08-28 17:44:21 -0700 |
| commit | c2cba7a96e04069011ae508e3027bbf128208040 (patch) | |
| tree | d7a7f8b66cdb1d768634a359009e273bb3b645dd /gcc/regclass.c | |
| parent | 881c6935bf565020e7955fede0b186232aa30bc7 (diff) | |
| download | gcc-c2cba7a96e04069011ae508e3027bbf128208040.zip gcc-c2cba7a96e04069011ae508e3027bbf128208040.tar.gz gcc-c2cba7a96e04069011ae508e3027bbf128208040.tar.bz2 | |
local-alloc.c (requires_inout): Don't use reserved range for EXTRA_CONSTRAINTS...
* 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.
From-SVN: r36023
Diffstat (limited to 'gcc/regclass.c')
| -rw-r--r-- | gcc/regclass.c | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/gcc/regclass.c b/gcc/regclass.c index 90c59b2..866f5b8 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -1561,17 +1561,6 @@ record_reg_classes (n_alts, n_ops, ops, modes, win = 1; break; -#ifdef EXTRA_CONSTRAINT - case 'Q': - case 'R': - case 'S': - case 'T': - case 'U': - if (EXTRA_CONSTRAINT (op, c)) - win = 1; - break; -#endif - case 'g': if (GET_CODE (op) == MEM || (CONSTANT_P (op) @@ -1587,9 +1576,15 @@ record_reg_classes (n_alts, n_ops, ops, modes, break; default: - classes[i] - = reg_class_subunion[(int) classes[i]] - [(int) REG_CLASS_FROM_LETTER (c)]; + if (REG_CLASS_FROM_LETTER (c) != NO_REGS) + classes[i] + = reg_class_subunion[(int) classes[i]] + [(int) REG_CLASS_FROM_LETTER (c)]; +#ifdef EXTRA_CONSTRAINT + else if (EXTRA_CONSTRAINT (op, c)) + win = 1; +#endif + break; } constraints[i] = p; |