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556 lines
15 KiB
556 lines
15 KiB
#!/usr/local/bin/perl5 -w
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##
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## Copyright (c) 2000, Intel Corporation
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## All rights reserved.
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##
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## WARRANTY DISCLAIMER
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##
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## THESE MATERIALS ARE PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
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## CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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## EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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## PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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## PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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## OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
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## NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THESE
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## MATERIALS, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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##
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## Intel Corporation is the author of the Materials, and requests that all
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## problem reports or change requests be submitted to it directly at
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## http://developer.intel.com/opensource.
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##
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$GenDir = shift(@ARGV);
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$EmdbDir = shift(@ARGV);
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################################################
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# CONSTANTS AND VARIABLES
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################################################
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### Second role instruction flag
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# ASSUMPTIONS:
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#1) Each instructions has at most one operand with a second role.
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#2) The _2ROLE flags are made up of EXACTLY one decimal digit.
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$_2ROLE_NONE = 0;
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$_2ROLE_DST = 1;
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$_2ROLE_SRC = 2;
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### NOTE
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# All arrays of completers below must be sorted by their length in descending order
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### Compare types comleters which can appear in mnemonics
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@cmp_types = ("or\.andcm", "and", "unc", "or");
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### Compare relations comleters which can appear in mnemonics
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@cmp_rels = ("unord", "ord", "neq", "nlt", "nle", "geu", "ltu", "eq", "ne", "lt", "ge", "gt", "le");
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### All those instructions that have floating point precision specification
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@fp_precis_insts = ("EM_FNMA", "EM_SETF", "EM_GETF", "EM_FMA", "EM_FMS");
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### Branch types comleters which can appear in mnemonics
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@branch_types = ("CLOOP", "CEXIT", "WEXIT", "COND", "CALL", "CTOP", "WTOP", "RET", "IA");
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### Memory access hints comleters which can appear in mnemonics
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@mem_access_hints = ("nt1", "nt2", "nta");
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### Prefix of branch_hints enumerators
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$branch_hint_prefix = "EM_branch_hint";
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### Prefix of memory_access_hints enumerators
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$mem_access_hint_prefix = "EM_memory_access_hint";
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### Hints file (EM_hints.h) header
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$hints_header = "#ifndef EM_HINTS_H\n#define EM_HINTS_H\n\n";
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### Add branch hints enumeration's header
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$branch_hints_header = ("typedef enum ".$branch_hint_prefix."_e\n{\n");
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$branch_hints_header .= (" ".$branch_hint_prefix."_none");
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### Branch hints enumeration's tail
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$branch_hints_tail = (",\n ".$branch_hint_prefix."_last\n} ".$branch_hint_prefix."_t;\n\n");
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### Memory access hints enumeration's header
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$mem_access_hints_header = ("typedef enum ".$mem_access_hint_prefix."_e\n{\n");
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$mem_access_hints_header .= (" ".$mem_access_hint_prefix."_none");
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### Memory access hints enumeration's tail
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$mem_access_hints_tail = (",\n ".$mem_access_hint_prefix."_last\n} ".$mem_access_hint_prefix."_t;\n\n");
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### Hints file (EM_hints.h) tail
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$hints_tail = ("\n#endif /* EM_HINTS_H */\n");
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### BR_hints: Associative array that holds existing branch hints
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$BR_hints{"none"} = "exist"; #enumerated by 0 - printed the first in EM_hints.h
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$BR_hints{"last"} = "exist"; #printed the last in EM_hints.h
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### MEM_ACCESS_hints: Associative array that holds existing memory access hints
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$MEM_ACCESS_hints{"none"} = "exist"; #enumerated by 0 - printed the first in EM_hints.h
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$MEM_ACCESS_hints{"last"} = "exist"; #printed the last in EM_hints.h
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### Initialize branch hints enumeration string
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$branch_hints_enum = "";
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### Initilize memory access hints enumeration string
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$mem_access_hints_enum = "";
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### memory_size: Associative array that maps "letter" into mem_size
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%memory_size = ("s", 4, "d", 8, "e", 10, "q", 16);
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################################################
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# open input and output files
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################################################
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### Input file: all_emdb.c
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open(EMDB_ALL, "$GenDir/all_emdb.tab") || die "Can't open all_emdb.tab\n";
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### Output file: decoder.txt
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open(EMDB5, ">$GenDir/decoder.txt") || die "Can't open decoder.txt\n";
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### Output file: EM_hints.h
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open (HINTS_ENUM, ">$GenDir/EM_hints.h") || die "Can't open EM_hints.h\n";
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### Column names in decoder.txt
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@dec_col_names = ("inst_id", "mem_size", "dec_flags",
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"false_pred_flag", "modifiers", "br_hint_flag", "br_flag", "control_transfer_flag");
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### Type names in decoder.txt
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@dec_type_names = ("Inst_id_t", "Mem_size_t", "int",
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"int", "EM_Decoder_modifiers_t", "int", "int", "int");
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### Prefix names in decoder.txt
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@dec_prefix_names = ("---", "---", "---", "---",
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"EM_cmp_type;EM_CMP_REL;EM_branch_type;EM_branch_hint;EM_FP_PRECISION;EM_FP_STATUS;EM_memory_access_hint",
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"---", "---", "---");
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###open emdb.txt to extract its version
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open(EMDB, "$EmdbDir/emdb.txt") || die "Can't open emdb.txt\n";
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### Skip comments in emdb.txt file
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while (<EMDB>)
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{
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last if /^###/;
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}
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close (EMDB);
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### Set emdb.txt version
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die "ERROR !!! unexpected EMDB.txt header format\n" if ($_ !~ /\$Revision/);
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$EMDB_version = $_;
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### Select decoder.txt to be the current output file
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select(EMDB5);
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### Print headers in decoder.txt
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print $EMDB_version;
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### Set format for output to decoder.txt
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format EMDB5 =
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@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<@<<<<<<<<<<<<<<<@<<<<<<<<<<<<@<<<<<<<<<<<<<<<<<<<<<<@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<@<<<<<<<<<<<<<<<<<<<<<<<<<<@<<<<<<<<<<<<<<<<<<<<<<<<<<<@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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$id, $mem_size, $dec_flags, $false_pred_flag, $modifiers, $br_hint_flag, $br_flag, $control_transfer_flag
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.
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### Print column names
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($id, $mem_size, $dec_flags, $false_pred_flag, $modifiers, $br_hint_flag, $br_flag, $control_transfer_flag) = @dec_col_names;
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$id = "&" . $id;
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write;
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### Print type names
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($id, $mem_size, $dec_flags, $false_pred_flag, $modifiers, $br_hint_flag, $br_flag, $control_transfer_flag) = @dec_type_names;
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$id = "?" . $id;
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write;
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### Print prefix names
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($id, $mem_size, $dec_flags, $false_pred_flag, $modifiers, $br_hint_flag, $br_flag, $control_transfer_flag) = @dec_prefix_names;
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$id = "@" . $id;
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write;
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### While loop over lines of all_emdb.tab
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### Each line is read into $_
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while (<EMDB_ALL>)
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{
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if (/^EM_/)
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{
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### Initialization
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$mem_size = 0;
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$dec_flags = $_2ROLE_NONE;
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### Extract instruction id and mnemonic from current input line
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($id, $mnemonic) = split(/,/, $_);
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### Set mem_size
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if ($mnemonic =~ /ld(\d+)/)
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{
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$mem_size = $1;
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}
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elsif ($mnemonic =~ /ldf(\d+)/)
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{
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$mem_size = $1;
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}
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elsif ($mnemonic =~ /ldfp(\d+)/)
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{
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$mem_size = $1;
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}
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elsif ($mnemonic =~ /ldfpd/)
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{
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$mem_size = 16;
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}
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elsif ($mnemonic =~ /ldfps/)
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{
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$mem_size = 8;
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}
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elsif ($mnemonic =~ /ldf([a-z])/)
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{
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die "ERROR !!! unexpected mnemonic: \"ldf$1\"\n" if (!$memory_size{$1});
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$mem_size = $memory_size{$1};
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}
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elsif ($mnemonic =~ /ldf\./)
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{
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$mem_size = 16;
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}
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elsif ($mnemonic =~ /lfetch/)
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{
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$mem_size = 32;
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}
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elsif ($mnemonic =~ /st(\d+)/)
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{
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$mem_size = $1;
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}
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elsif ($mnemonic =~ /stf(\d+)/)
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{
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$mem_size = $1;
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}
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elsif ($mnemonic =~ /stf([a-z])/)
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{
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die "ERROR !!! unexpected mnemonic: \"stf$1\"\n" if (!$memory_size{$1});
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$mem_size = $memory_size{$1};
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}
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elsif ($mnemonic =~ /stf\./)
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{
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$mem_size = 16;
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}
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elsif ($mnemonic =~ /fetchadd(\d+)/)
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{
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$mem_size = $1;
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}
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elsif ($mnemonic =~ /xchg(\d+)/)
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{
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$mem_size = $1;
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}
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### Set second role flag
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### loads or lfetchs with "_R2" or "IMM" in inst_id
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#!!! to be updated when this conventions change !!!
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if ((($id =~ /EM_LD/) && (($id =~ /_R2/)||($id =~ /IMM/)||($id =~ /_(\d+)/))) ||
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(($id =~ /EM_LFETCH/) && (($id =~ /_R2/)||($id =~ /IMM/))))
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{
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$dec_flags = $_2ROLE_DST;
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}
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elsif (($id =~ /EM_ST/) && ($id =~ /IMM/)) ### stores with "IMM" in inst_id
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{
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$dec_flags = $_2ROLE_SRC;
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}
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### Set false predicate exec flag
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&Set_false_pred_flag();
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### Set branch flags
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&Set_branch_flags();
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### Set control transfer flag
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&Set_control_transfer_flag();
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### Set modifiers: cmp_type, cmp_rel, branch_type, branch_hint, fp_precision, fp_status, mem_access_hint
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&Set_modifiers();
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### Join all the modifiers separated by ';'
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$modifiers = join(';', $cmp_type, $cmp_rel, $branch_type, $branch_hint,
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$fp_precision, $fp_status, $mem_access_hint);
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write;
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}
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}
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### Print headers in EM_hints.h
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print HINTS_ENUM $hints_header;
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&Print_branch_hints();
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### Print memory access hints enumeration in EM_hints.h
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&Print_mem_access_hints();
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### Print tail in EM_hints.h
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print HINTS_ENUM $hints_tail;
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### Close open files
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close(HINTS_ENUM);
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close(EMDB_ALL);
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close(EMDB5);
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##################################
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# PROCEDURES
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##################################
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sub Set_modifiers
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{
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$cmp_type = "none";
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$cmp_rel = "NONE";
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### Set cmp_rel modifier
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for ($i=0; $i <= $#cmp_rels; $i++)
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{
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if ($mnemonic =~ /\.$cmp_rels[$i]/)
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{
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$cmp_rel = "\U$cmp_rels[$i]";
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last;
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}
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}
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### Set cmp_type modifier
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for ($i=0; $i <= $#cmp_types; $i++)
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{
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if ($mnemonic =~ /\.$cmp_types[$i]/)
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{
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$cmp_type = $cmp_types[$i];
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$cmp_type =~ s/\./_/g;
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last;
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}
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}
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### Set fp_precision modifier
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$fp_precision = "NONE";
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for ($i=0; $i <= $#fp_precis_insts; $i++)
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{
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if ($id =~ /$fp_precis_insts[$i]_/)
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{
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if ($id =~ /_S_/)
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{
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$fp_precision = "SINGLE";
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}
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elsif ($id =~ /_D_/)
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{
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$fp_precision = "DOUBLE";
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}
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else
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{
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$fp_precision = "DYNAMIC";
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}
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last;
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}
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}
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### Set fp_status modifier
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$fp_status = "NONE";
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if ($mnemonic =~ /\.s0/)
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{
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$fp_status = "S0";
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}
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elsif ($mnemonic =~ /\.s1/)
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{
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$fp_status = "S1";
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}
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elsif ($mnemonic =~ /\.s2/)
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{
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$fp_status = "S2";
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}
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elsif ($mnemonic =~ /\.s3/)
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{
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$fp_status = "S3";
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}
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### Set branch_type modifier
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$branch_type = "none";
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$branch_hint = "none";
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if ($id =~ /EM_BR_/ || $id =~ /EM_BRL_/) ### Pattern: mnemonic - "br.type.hints"
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{
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for ($i=0; $i <= $#branch_types; $i++)
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{
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if ($id =~ /_$branch_types[$i]/)
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{
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if ($id =~ /TARGET25/ || $id =~ /TARGET64/)
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{
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$branch_type = "direct";
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}
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else
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{
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$branch_type = "indirect";
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}
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$branch_type .= "_\L$branch_types[$i]";
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last;
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}
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}
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}
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### Set branch_hint modifier
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if ($mnemonic =~ /brp\./) ### Pattern: mnemonic - "brp.[ret.]hints"
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{
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$branch_hint = $mnemonic;
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$branch_hint =~ s/brp\.//;
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$branch_hint =~ s/\./_/g;
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}
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elsif ($id =~ /^EM_MOV_/ && $id =~ /TAG13/) ### Pattern: inst_id - EM_MOV_[RET_]HINTS__B1_R2_TAG13
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### mnemonic - "mov.[ret.]hints"
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{
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$branch_hint = $mnemonic;
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$branch_hint =~ s/mov\.//;
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$branch_hint =~ s/\./_/g;
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}
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elsif ($id =~ /EM_BR_/ || $id =~ /EM_BRL_/) ### Pattern: mnemonic - "br.type.hints"
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{
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for ($i=0; $i <= $#branch_types; $i++)
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{
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if ($id =~ /_$branch_types[$i]/)
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{
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$branch_hint = $mnemonic;
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$br_type_low = "\L$branch_types[$i]";
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$branch_hint =~ s/br\.$br_type_low\.//;
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$branch_hint =~ s/brl\.$br_type_low\.//;
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$branch_hint =~ s/\./_/g;
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last;
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}
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}
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}
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### Append the branch hint enumerator (if first appearance)
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### to the enums string
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if (! $BR_hints{$branch_hint})
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{
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$BR_hints{$branch_hint} = "exist";
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$hint = join('_', $branch_hint_prefix, $branch_hint);
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$branch_hints_enum .= ",\n $hint";
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}
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### Set mem_access_hint modifier
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$mem_access_hint = "none";
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for ($i=0; $i <= $#mem_access_hints; $i++)
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{
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if ($mnemonic =~ /\.$mem_access_hints[$i]/)
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{
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$mem_access_hint = $mem_access_hints[$i];
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last;
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}
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}
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### Append the memory access hint enumerator (if first appearance)
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### to the enums string
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if (! $MEM_ACCESS_hints{$mem_access_hint})
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{
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$MEM_ACCESS_hints{$mem_access_hint} = "exist";
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$hint = join('_', $mem_access_hint_prefix, $mem_access_hint);
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$mem_access_hints_enum .= ",\n $hint";
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}
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}
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### False qualifying predicate exec flag
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sub Set_false_pred_flag
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{
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if (($mnemonic =~ /\.unc/) ||
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($mnemonic =~ /frcpa/) ||
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($mnemonic =~ /frsqrta/) ||
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($mnemonic =~ /fprcpa/) ||
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($mnemonic =~ /fprsqrta/) ||
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(($mnemonic =~ /br\./) && (($mnemonic =~ /\.cloop/) || ($mnemonic =~ /\.cexit/) ||
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($mnemonic =~ /\.ctop/) || ($mnemonic =~ /\.wtop/) ||
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($mnemonic =~ /\.wexit/)))
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)
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{
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$false_pred_flag = 1;
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}
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else
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{
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$false_pred_flag = 0;
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}
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}
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### Branch flag
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sub Set_branch_flags
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{
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if ($id =~ /EM_BRP_/)
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{
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$br_hint_flag = 1;
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$br_flag = 0;
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}
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elsif ($id =~ /EM_BR_/ || $id =~ /EM_BRL_/)
|
|
{
|
|
$br_hint_flag = 0;
|
|
$br_flag = 1;
|
|
}
|
|
else
|
|
{
|
|
$br_hint_flag = 0;
|
|
$br_flag = 0;
|
|
}
|
|
}
|
|
|
|
### Print branch hints enumeration in EM_hints.h
|
|
|
|
sub Print_branch_hints
|
|
{
|
|
### Print branch hints enumeration's header
|
|
print HINTS_ENUM $branch_hints_header;
|
|
|
|
### Print branch hints enumeration string
|
|
print HINTS_ENUM $branch_hints_enum;
|
|
|
|
### Print branch hints enumeration's tail
|
|
print HINTS_ENUM $branch_hints_tail;
|
|
}
|
|
|
|
|
|
### Print memory access hints enumeration in EM_hints.h
|
|
|
|
sub Print_mem_access_hints
|
|
{
|
|
|
|
### Print memory access hints enumeration's header
|
|
print HINTS_ENUM $mem_access_hints_header;
|
|
|
|
### Print memory access hints enumeration string
|
|
print HINTS_ENUM $mem_access_hints_enum;
|
|
|
|
### Print memory access hints enumeration's tail
|
|
print HINTS_ENUM $mem_access_hints_tail;
|
|
}
|
|
|
|
|
|
### Control transfer flag
|
|
|
|
sub Set_control_transfer_flag
|
|
{
|
|
if ($id =~ /EM_BR_/ || $id =~ /EM_BRL_/ || $id =~ /EM_RFI/ || $id =~ /EM_BREAK/ ||
|
|
($id =~ /TARGET25/ && $id !~ /EM_BRP_/))
|
|
{
|
|
$control_transfer_flag = 1;
|
|
}
|
|
else
|
|
{
|
|
$control_transfer_flag = 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|