From a4edaf835918f2dd4a2c36659b3639438a0d1a38 Mon Sep 17 00:00:00 2001 From: Andreas Krebbel Date: Tue, 27 May 2008 11:41:10 +0000 Subject: defaults.h (TARGET_MEM_CONSTRAINT): New target macro added. 2008-05-27 Andreas Krebbel * defaults.h (TARGET_MEM_CONSTRAINT): New target macro added. * postreload.c (reload_cse_simplify_operands): Replace 'm' constraint with TARGET_MEM_CONSTRAINT. * recog.c (asm_operand_ok, preprocess_constraints, constrain_operands): Likewise. * regclass.c (record_reg_classes): Likewise. * reload.c (find_reloads, alternative_allows_const_pool_ref): Likewise. * reload1.c (maybe_fix_stack_asms): Likewise. * stmt.c (parse_output_constraint, parse_input_constraint): Likewise. * recog.h: Adjust comment. * genpreds.c (generic_constraint_letters): Remove 'm' constraint. * genoutput.c (note_constraint): Don't emit error for 'm' constraint. * doc/md.texi: Add a note to description of 'm' constraint. * doc/tm.texi: Document the new TARGET_MEM_CONSTRAINT macro. From-SVN: r136011 --- gcc/genpreds.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'gcc/genpreds.c') diff --git a/gcc/genpreds.c b/gcc/genpreds.c index bc20b16..b292784 100644 --- a/gcc/genpreds.c +++ b/gcc/genpreds.c @@ -690,8 +690,11 @@ static struct constraint_data **last_constraint_ptr = &first_constraint; for (iter_ = first_constraint; iter_; iter_ = iter_->next_textual) /* These letters, and all names beginning with them, are reserved for - generic constraints. */ -static const char generic_constraint_letters[] = "EFVXgimnoprs"; + generic constraints. + The 'm' constraint is not mentioned here since that constraint + letter can be overridden by the back end by defining the + TARGET_MEM_CONSTRAINT macro. */ +static const char generic_constraint_letters[] = "EFVXginoprs"; /* Machine-independent code expects that constraints with these (initial) letters will allow only (a subset of all) CONST_INTs. */ -- cgit v1.1