diff options
author | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-08-30 20:44:51 +0000 |
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committer | vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-08-30 20:44:51 +0000 |
commit | 17c7a04d1c73b837492a822490fa59ee17db094f (patch) | |
tree | 9cc1dc4a63e4c3af0ab3e68c017e773ea05dec6f /gcc/rtl.def | |
parent | e025bbe7bf73c4adaa7edeec9158db8f8438295f (diff) | |
download | gcc-17c7a04d1c73b837492a822490fa59ee17db094f.tar.gz |
2001-08-30 Vladimir Makarov <vmakarov@redhat.com>
* rtl.def: Undo my patch commited 2001-08-27.
* genattrtab.c: Ditto.
* rtl.h: Ditto.
* sched-int.h: Ditto.
* target-def.h: Ditto.
* target.h: Ditto.
* haifa-sched.c: Ditto.
* sched-rgn.c: Ditto.
* sched-vis.c: Ditto.
* Makefile.in: Ditto.
* doc/md.texi: Ditto.
* doc/tm.texi: Ditto.
* doc/contrib.texi: Ditto.
* doc/gcc.texi: Ditto.
* genattrtab.h: Remove it.
* genautomata.c: Remove it.
* genattr.c: Undo my patch and Richard Henderson's patch commited
2001-08-27.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45297 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtl.def')
-rw-r--r-- | gcc/rtl.def | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/gcc/rtl.def b/gcc/rtl.def index 720d605b583..80f8e5c3388 100644 --- a/gcc/rtl.def +++ b/gcc/rtl.def @@ -334,144 +334,6 @@ DEF_RTL_EXPR(SEQUENCE, "sequence", "E", 'x') DEF_RTL_EXPR(ADDRESS, "address", "e", 'm') /* ---------------------------------------------------------------------- - Constructions for CPU pipeline description described by NDFAs. - These do not appear in actual rtl code in the compiler. - ---------------------------------------------------------------------- */ - -/* (define_cpu_unit string [string]) describes cpu functional - units (separated by comma). - - 1st operand: Names of cpu functional units. - 2nd operand: Name of automaton (see comments for DEFINE_AUTOMATON). - - All define_reservations, define_cpu_units, and - define_query_cpu_units should have unique names which may not be - "nothing". */ -DEF_RTL_EXPR(DEFINE_CPU_UNIT, "define_cpu_unit", "sS", 'x') - -/* (define_query_cpu_unit string [string]) describes cpu functional - units analogously to define_cpu_unit. If we use automaton without - minimization, the reservation of such units can be queried for - automaton state. */ -DEF_RTL_EXPR(DEFINE_QUERY_CPU_UNIT, "define_query_cpu_unit", "sS", 'x') - -/* (exclusion_set string string) means that each CPU functional unit - in the first string can not be reserved simultaneously with any - unit whose name is in the second string and vise versa. CPU units - in the string are separated by commas. For example, it is useful - for description CPU with fully pipelined floating point functional - unit which can execute simultaneously only single floating point - insns or only double floating point insns. */ -DEF_RTL_EXPR(EXCLUSION_SET, "exclusion_set", "ss", 'x') - -/* (presence_set string string) means that each CPU functional unit in - the first string can not be reserved unless at least one of units - whose names are in the second string is reserved. This is an - asymmetric relation. CPU units in the string are separated by - commas. For example, it is useful for description that slot1 is - reserved after slot0 reservation for VLIW processor. */ -DEF_RTL_EXPR(PRESENCE_SET, "presence_set", "ss", 'x') - -/* (absence_set string string) means that each CPU functional unit in - the first string can not be reserved only if each unit whose name - is in the second string is not reserved. This is an asymmetric - relation (actually exclusion set is analogous to this one but it is - symmetric). CPU units in the string are separated by commas. For - example, it is useful for description that slot0 can not be - reserved after slot1 or slot2 reservation for VLIW processor. */ -DEF_RTL_EXPR(ABSENCE_SET, "absence_set", "ss", 'x') - -/* (define_bypass number out_insn_names in_insn_names) names bypass - with given latency (the first number) from insns given by the first - string (see define_insn_reservation) into insns given by the second - string. Insn names in the strings are separated by commas. The - third operand is optional name of function which is additional - guard for the bypass. The function will get the two insns as - parameters. If the function returns zero the bypass will be - ignored for this case. Additional guard is necessary to recognize - complicated bypasses, e.g. when consumer is load address. */ -DEF_RTL_EXPR(DEFINE_BYPASS, "define_bypass", "issS", 'x') - -/* (define_automaton string) describes names of automata generated and - used for pipeline hazards recognition. The names are separated by - comma. Actually it is possibly to generate the single automaton - but unfortunately it can be very large. If we use more one - automata, the summary size of the automata usually is less than the - single one. The automaton name is used in define_cpu_unit and - define_query_cpu_unit. All automata should have unique names. */ -DEF_RTL_EXPR(DEFINE_AUTOMATON, "define_automaton", "s", 'x') - -/* (automata_option string) describes option for generation of - automata. Currently there are the following options: - - o "no-minimization" which makes no minimization of automata. This - is only worth to do when we are going to query CPU functional - unit reservations in an automaton state. - - o "w" which means generation of file describing the result - automaton. The file can be used for the description verification. - - o "ndfa" which makes nondeterministic finite state automata. */ -DEF_RTL_EXPR(AUTOMATA_OPTION, "automata_option", "s", 'x') - -/* (define_reservation string string) names reservation (the first - string) of cpu functional units (the 2nd string). Sometimes unit - reservations for different insns contain common parts. In such - case, you can describe common part and use its name (the 1st - parameter) in regular expression in define_insn_reservation. All - define_reservations, define_cpu_units, and define_query_cpu_units - should have unique names which may not be "nothing". */ -DEF_RTL_EXPR(DEFINE_RESERVATION, "define_reservation", "ss", 'x') - -/* (define_insn_reservation name default_latency condition regexpr) - describes reservation of cpu functional units (the 3nd operand) for - instruction which is selected by the condition (the 2nd parameter). - The first parameter is used for output of debugging information. - The reservations are described by a regular expression according - the following syntax: - - regexp = regexp "," oneof - | oneof - - oneof = oneof "|" allof - | allof - - allof = allof "+" repeat - | repeat - - repeat = element "*" number - | element - - element = cpu_function_unit_name - | reservation_name - | result_name - | "nothing" - | "(" regexp ")" - - 1. "," is used for describing start of the next cycle in - reservation. - - 2. "|" is used for describing the reservation described by the - first regular expression *or* the reservation described by the - second regular expression *or* etc. - - 3. "+" is used for describing the reservation described by the - first regular expression *and* the reservation described by the - second regular expression *and* etc. - - 4. "*" is used for convinience and simply means sequence in - which the regular expression are repeated NUMBER times with - cycle advancing (see ","). - - 5. cpu functional unit name which means its reservation. - - 6. reservation name -- see define_reservation. - - 7. string "nothing" means no units reservation. */ - -DEF_RTL_EXPR(DEFINE_INSN_RESERVATION, "define_insn_reservation", "sies", 'x') - -/* ---------------------------------------------------------------------- Expressions used for insn attributes. These also do not appear in actual rtl code in the compiler. ---------------------------------------------------------------------- */ |