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| author | Andreas Krebbel <krebbel1@de.ibm.com> | 2008-05-27 11:41:10 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2008-05-27 11:41:10 +0000 |
| commit | a4edaf835918f2dd4a2c36659b3639438a0d1a38 (patch) | |
| tree | 434ad6c0e7449499b85133dba8b2068b274857f0 /gcc/doc/md.texi | |
| parent | 79d2a7279ffca5617a15c9082369110fd491efda (diff) | |
| download | gcc-a4edaf835918f2dd4a2c36659b3639438a0d1a38.zip gcc-a4edaf835918f2dd4a2c36659b3639438a0d1a38.tar.gz gcc-a4edaf835918f2dd4a2c36659b3639438a0d1a38.tar.bz2 | |
defaults.h (TARGET_MEM_CONSTRAINT): New target macro added.
2008-05-27 Andreas Krebbel <krebbel1@de.ibm.com>
* 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
Diffstat (limited to 'gcc/doc/md.texi')
| -rw-r--r-- | gcc/doc/md.texi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index a8e43ea..ee8021c 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -1085,6 +1085,8 @@ number of constraints and modifiers. @item @samp{m} A memory operand is allowed, with any kind of address that the machine supports in general. +Note that the letter used for the general memory constraint can be +re-defined by a back end using the @code{TARGET_MEM_CONSTRAINT} macro. @cindex offsettable address @cindex @samp{o} in constraint |