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compiler.cfg.def-use: docs

db4
Björn Lindqvist 2014-11-16 10:59:13 +01:00 committed by John Benediktsson
parent 90b31d543b
commit 3b86d4b9ba
1 changed files with 25 additions and 4 deletions
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basis/compiler/cfg/def-use/def-use-docs.factor
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@ -1,6 +1,11 @@
USING: compiler.cfg.instructions help.markup help.syntax sequences ;
USING: compiler.cfg compiler.cfg.instructions help.markup help.syntax
sequences ;
IN: compiler.cfg.def-use
HELP: compute-insns
{ $values { "cfg" cfg } }
{ $description "Computes a mapping from vregs to the instructions that define them and store the result in the " { $link insns } " variable." } ;
HELP: defs-vregs
{ $values { "insn" insn } { "seq" sequence } }
{ $description "Returns the sequence of vregs defined, or introduced, by this instruction." }
@ -12,6 +17,14 @@ HELP: defs-vregs
}
} ;
HELP: insn-of
{ $values { "vreg" "virtual register" } { "insn" insn } }
{ $description "Maps the vreg to the instruction that defined it." } ;
HELP: temp-vregs
{ $values { "insn" insn } { "seq" sequence } }
{ $description "Returns the sequence of temporary vregs used by this instruction." } ;
HELP: uses-vregs
{ $values { "insn" insn } { "seq" sequence } }
{ $description "Returns the sequence of vregs used by this instruction." }
@ -23,6 +36,14 @@ HELP: uses-vregs
}
} ;
HELP: temp-vregs
{ $values { "insn" insn } { "seq" sequence } }
{ $description "Returns the sequence of temporary vregs used by this instruction." } ;
ARTICLE: "compiler.cfg.def-use" "Common code used by several passes for def-use analysis"
"The " { $vocab-link "compiler.cfg.def-use" } " contains tools to correlate SSA instructions with virtual registers defined or used by them."
$nl
"Vregs for a given instruction:"
{ $subsections
defs-vregs
temp-vregs
uses-vregs
} ;
ABOUT: "compiler.cfg.def-use"