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Overview
Comment:Merge trunk: expunge last uses of 'uniqueUndef' in constructing phi's
Timelines: family | ancestors | descendants | both | notworking | kbk-nre
Files: files | file ages | folders
SHA3-256: 1855f5dc7a0840f77943c5952cadcdc8aafd51923d7f57f7b81e5bd42000ffd9
User & Date: kbk 2018-04-17 00:11:41.204
Context
2018-04-17
21:53
Added debugging types for NRE callbacks. check-in: 11236a5639 user: dkf tags: notworking, kbk-nre
00:11
Merge trunk: expunge last uses of 'uniqueUndef' in constructing phi's check-in: 1855f5dc7a user: kbk tags: notworking, kbk-nre
00:09
Finish expunging the uses of 'uniqueUndef' in constructing phis. check-in: f71cdfbdae user: kbk tags: trunk
2018-04-16
23:46
Dump bitcode to files after module verification, to try to debug optimizer crashes. Commit missing changes to the debug helper for better phi handling. check-in: 504ceb334b user: kbk tags: notworking, kbk-nre
Changes
Unified Diff Ignore Whitespace Patch
Changes to codegen/build.tcl.
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    # Results:
    #	A NUMERIC LLVM value reference.

    method uminus(NUMERIC) {value {name ""}} {
	my call ${tcl.neg.numeric} [list $value] $name
    }

    # Builder:uniqueUndef --
    #
    #	Create a unique undefined value. This is designed so that it can be
    #	replaced later on when fixing up a loop's back-references at a phi
    #	node.
    #
    # Parameters:
    #	type -	Type (LLVM or name) of undef to create.
    #	name (optional) -
    #		The name of the result value.
    #
    # Results:
    #	LLVM undef value that is guaranteed distinct from all others.

    method uniqueUndef {type {name ""}} {
	set type [Type $type]
	set n2 $name
	if {$n2 ne ""} {
	    set n2 &$n2
	}
	my load [my alloc $type $n2] $name
    }

    # Builder:unshare(STRING) --
    #
    #	Generate a writable buffer by "unsharing" a STRING. This examines the
    #	reference counts and applies Tcl_DuplicateObj if required; the result
    #	*may* be the original value.
    #
    # Parameters:








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    # Results:
    #	A NUMERIC LLVM value reference.

    method uminus(NUMERIC) {value {name ""}} {
	my call ${tcl.neg.numeric} [list $value] $name
    }
























    # Builder:unshare(STRING) --
    #
    #	Generate a writable buffer by "unsharing" a STRING. This examines the
    #	reference counts and applies Tcl_DuplicateObj if required; the result
    #	*may* be the original value.
    #
    # Parameters:
︙︙
Changes to codegen/mathlib.tcl.
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	params x y
	set 0 [Const 0 int64]
	set 1 [Const 1 int64]
	build {
	    set r0 [my int 1 "result.enter"]
	    set n0 [my getInt64 $y "n.enter"]
	    # These are stand-ins for values that we've not generated yet
	    set nLoop [my uniqueUndef int64 "n"]
	    set xLoop [my uniqueUndef INT "x"]
	    set rLoop [my uniqueUndef INT "r"]
	    my br $loop(test)
	label loop(test) "loop.test"
	    set sources [list $entry $loop(double)]
	    set thisn [my phi [list $n0 $nLoop] $sources "n.test"]
	    set x [my phi [list $x $xLoop] $sources "x.test"]
	    set result [my phi [list $r0 $rLoop] $sources "result.test"]
	    my condBr [my neq $thisn $0] $loop(bit0) $loop(result)
	label loop(result) "result"
	    my ret $result
	label loop(bit0) "loop.bit0"
	    my condBr [my cmpInt [my and $thisn $1] NE $0] \
		$loop(mult) $loop(double)
	label loop(mult) "loop.mult"
	    set multresult [my mult(INT,INT) $x $result "result.mult"]
	    set thisn2 [my sub $thisn $1 "n.mult"]
	    my br $loop(double)
	label loop(double) "loop.double"
	    set sources [list $loop(bit0) $loop(mult)]
	    set thisn [my phi [list $thisn $thisn2] $sources "n.double"]
	    set result [my phi [list $result $multresult] $sources \
			    "result.double"]
	    ReplaceAllUsesWith $rLoop $result
	    ReplaceAllUsesWith $xLoop [my mult(INT,INT) $x $x "x.double"]
	    ReplaceAllUsesWith $nLoop [my rshift $thisn $1 "n.double"]
	    my br $loop(test)
	}

	##### Function tcl.ipow32 #####
	#
	# Type signature: x:INT * y:INT -> INT
	#








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	params x y
	set 0 [Const 0 int64]
	set 1 [Const 1 int64]
	build {
	    set r0 [my int 1 "result.enter"]
	    set n0 [my getInt64 $y "n.enter"]
	    # These are stand-ins for values that we've not generated yet



	    my br $loop(test)
	label loop(test) "loop.test"
	    set sources {$entry $loop(double)}
	    set thisn [PHI [Type int64] {$n0 $nLoop} $sources "n.test"]
	    set xbody [PHI [Type INT] {$x $xLoop} $sources "x.test"]
	    set result [PHI [Type INT] {$r0 $rLoop} $sources "result.test"]
	    my condBr [my neq $thisn $0] $loop(bit0) $loop(result)
	label loop(result) "result"
	    my ret $result
	label loop(bit0) "loop.bit0"
	    my condBr [my cmpInt [my and $thisn $1] NE $0] \
		$loop(mult) $loop(double)
	label loop(mult) "loop.mult"
	    set multresult [my mult(INT,INT) $xbody $result "result.mult"]
	    set thisn2 [my sub $thisn $1 "n.mult"]
	    my br $loop(double)
	label loop(double) "loop.double"
	    set sources [list $loop(bit0) $loop(mult)]
	    set thisn [my phi [list $thisn $thisn2] $sources "n.double"]
	    set result [my phi [list $result $multresult] $sources \
			    "result.double"]
	    set rLoop $result
	    set xLoop [my mult(INT,INT) $xbody $xbody "x.double"]
	    set nLoop [my rshift $thisn $1 "n.double"]
	    my br $loop(test)
	}

	##### Function tcl.ipow32 #####
	#
	# Type signature: x:INT * y:INT -> INT
	#
︙︙
Changes to codegen/stdlib.tcl.
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	# trimmed are in the string 'trim' (length 'numTrim'). Works on UTF-8.

	set f [$m local "tcl.impl.trimleft" int<-char*,int,char*,int readonly]
	params bytes numBytes trim numTrim
	build {
	    nonnull $bytes $trim
	    set chVar [my alloc int16]
	    set pLoop [my uniqueUndef char* "p"]
	    set nbLoop [my uniqueUndef int "nb"]
	    my condBr [my eq $numBytes $0] $ret0 $checkTrim
	label checkTrim:
	    my condBr [my eq $numTrim $0] $ret0 $outerLoop
	label ret0:
	    my ret $0
	label outerLoop:
	    set sources [list $checkTrim $nextOuter]
	    set p [my phi [list $bytes $pLoop] $sources "p"]
	    set numBytes [my phi [list $numBytes $nbLoop] $sources "numBytes"]

	    set pInc [$api Tcl_UtfToUniChar $p $chVar]
	    SetValueName $pInc "pInc"
	    set ch1 [my load $chVar "ch1"]
	    set qLoop [my uniqueUndef char* "q"]
	    set blLoop [my uniqueUndef int "bl"]
	    my br $innerLoop
	label innerLoop:
	    set sources [list $outerLoop $nextInner]
	    set q [my phi [list $trim $qLoop] $sources "q"]

	    set bytesLeft [my phi [list $numTrim $blLoop] $sources "bytesLeft"]
	    set qInc [$api Tcl_UtfToUniChar $q $chVar]
	    SetValueName $qInc "qInc"
	    set ch2 [my load $chVar "ch2"]
	    my condBr [my eq $ch1 $ch2] $doneInner $nextInner
	label nextInner:
	    ReplaceAllUsesWith $qLoop [my getelementptr $q [list $qInc] "q"]
	    ReplaceAllUsesWith $blLoop \
		[set bytesLeft2 [my sub $bytesLeft $qInc "bytesLeft"]]
	    my condBr [my gt $bytesLeft2 $0] $innerLoop $doneInner
	label doneInner:
	    set sources [list $innerLoop $nextInner]
	    set bytesLeft [my phi [list $bytesLeft $bytesLeft2] $sources "bytesLeft"]
	    my condBr [my le $bytesLeft $0] $doneOuter $nextOuter
	label nextOuter:
	    ReplaceAllUsesWith $pLoop \
		[set p2 [my getelementptr $p [list $pInc] "p"]]
	    ReplaceAllUsesWith $nbLoop \
		[set numBytes [my sub $numBytes $pInc "numBytes"]]
	    my condBr [my gt $numBytes $0] $outerLoop $doneOuter
	label doneOuter:
	    set p [my phi [list $p $p2] [list $doneInner $nextOuter] "p"]
	    my ret [my cast(int) [my diff $p $bytes]]
	}

	##### Function tcl.impl.trimright #####
	# Replacement for non-exposed TclTrimRight








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	# trimmed are in the string 'trim' (length 'numTrim'). Works on UTF-8.

	set f [$m local "tcl.impl.trimleft" int<-char*,int,char*,int readonly]
	params bytes numBytes trim numTrim
	build {
	    nonnull $bytes $trim
	    set chVar [my alloc int16]


	    my condBr [my eq $numBytes $0] $ret0 $checkTrim
	label checkTrim:
	    my condBr [my eq $numTrim $0] $ret0 $outerLoop
	label ret0:
	    my ret $0
	label outerLoop:
	    set sources {$checkTrim $nextOuter}
	    set p [PHI [Type char*] {$bytes $pLoop} $sources "p"]
	    set numBytes2 [PHI [Type int] {$numBytes $nbLoop} $sources \
			      "numBytes.2"]
	    set pInc [$api Tcl_UtfToUniChar $p $chVar]
	    SetValueName $pInc "pInc"
	    set ch1 [my load $chVar "ch1"]


	    my br $innerLoop
	label innerLoop:
	    set sources [list $outerLoop $nextInner]
	    set q [PHI [Type char*] {$trim $qLoop} $sources "q"]
	    set bytesLeft [PHI [Type int] {$numTrim $blLoop} $sources \
			       "bytesLeft"]
	    set qInc [$api Tcl_UtfToUniChar $q $chVar]
	    SetValueName $qInc "qInc"
	    set ch2 [my load $chVar "ch2"]
	    my condBr [my eq $ch1 $ch2] $doneInner $nextInner
	label nextInner:
	    set qLoop [my getelementptr $q [list $qInc] "q"]

	    set blLoop [set bytesLeft2 [my sub $bytesLeft $qInc "bytesLeft"]]
	    my condBr [my gt $bytesLeft2 $0] $innerLoop $doneInner
	label doneInner:
	    set sources [list $innerLoop $nextInner]
	    set bytesLeft [my phi [list $bytesLeft $bytesLeft2] $sources "bytesLeft"]
	    my condBr [my le $bytesLeft $0] $doneOuter $nextOuter
	label nextOuter:

	    set pLoop [set p2 [my getelementptr $p [list $pInc] "p"]]

	    set nbLoop [set numBytes3 [my sub $numBytes2 $pInc "numBytes.3"]]
	    my condBr [my gt $numBytes3 $0] $outerLoop $doneOuter
	label doneOuter:
	    set p [my phi [list $p $p2] [list $doneInner $nextOuter] "p"]
	    my ret [my cast(int) [my diff $p $bytes]]
	}

	##### Function tcl.impl.trimright #####
	# Replacement for non-exposed TclTrimRight
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	# in the string 'trim' (length 'numTrim'). Works on UTF-8.

	set f [$m local "tcl.impl.trimright" int<-char*,int,char*,int readonly]
	params bytes numBytes trim numTrim
	build {
	    nonnull $bytes $trim
	    set chVar [my alloc int16]
	    set pLoop [my uniqueUndef char* "p"]
	    set nbLoop [my uniqueUndef int "nb"]
	    set p [my getelementptr $bytes [list $numBytes] "p"]
	    my condBr [my eq $numBytes $0] $ret0 $checkTrim
	label checkTrim:
	    my condBr [my eq $numTrim $0] $ret0 $outerLoop
	label ret0:
	    my ret $0
	label outerLoop:
	    set sources [list $checkTrim $nextOuter]
	    set p [my phi [list $p $pLoop] $sources "p"]
	    set numBytes [my phi [list $numBytes $nbLoop] $sources "numBytes"]

	    set p [$api Tcl_UtfPrev $p $bytes]
	    SetValueName $p "p"
	    set pInc [$api Tcl_UtfToUniChar $p $chVar]
	    SetValueName $pInc "pInc"
	    set ch1 [my load $chVar "ch1"]
	    set qLoop [my uniqueUndef char* "q"]
	    set blLoop [my uniqueUndef int "bl"]
	    my br $innerLoop
	label innerLoop:
	    set sources [list $outerLoop $nextInner]
	    set q [my phi [list $trim $qLoop] $sources "q"]

	    set bytesLeft [my phi [list $numTrim $blLoop] $sources "bytesLeft"]
	    set qInc [$api Tcl_UtfToUniChar $q $chVar]
	    SetValueName $qInc "qInc"
	    set ch2 [my load $chVar "ch2"]
	    my condBr [my eq $ch1 $ch2] $doneInner $nextInner
	label doneInner:
	    my condBr [my le $bytesLeft $0] $fixP $nextOuter
	label nextInner:
	    ReplaceAllUsesWith $qLoop [my getelementptr $q [list $qInc] "q"]
	    ReplaceAllUsesWith $blLoop \
		[set bytesLeft [my sub $bytesLeft $qInc "bytesLeft"]]
	    my condBr [my gt $bytesLeft $0] $innerLoop $fixP
	label nextOuter:
	    ReplaceAllUsesWith $pLoop $p
	    ReplaceAllUsesWith $nbLoop $numBytes
	    my condBr [my gt $p $bytes] $outerLoop $doneOuter
	label fixP:
	    set p0 [my phi [list $p $p] [list $doneInner $nextInner] "p"]
	    set p2 [my getelementptr $p0 [list $pInc] "p"]
	    my br $doneOuter
	label doneOuter:
	    set p [my phi [list $p $p2] [list $nextOuter $fixP] "p"]
	    my ret [my sub $numBytes [my cast(int) [my diff $p $bytes]]]
	}

	##### Function tcl.impl.isAscii #####
	# Replacement for non-exposed UniCharIsAscii
	#
	# Type signature: ch:int16 -> int1
	#








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	# in the string 'trim' (length 'numTrim'). Works on UTF-8.

	set f [$m local "tcl.impl.trimright" int<-char*,int,char*,int readonly]
	params bytes numBytes trim numTrim
	build {
	    nonnull $bytes $trim
	    set chVar [my alloc int16]


	    set p0 [my getelementptr $bytes [list $numBytes] "p.0"]
	    my condBr [my eq $numBytes $0] $ret0 $checkTrim
	label checkTrim:
	    my condBr [my eq $numTrim $0] $ret0 $outerLoop
	label ret0:
	    my ret $0
	label outerLoop:
	    set sources [list $checkTrim $nextOuter]
	    set p1 [PHI [Type char*] {$p0 $pLoop} $sources "p.1"]
	    set numBytes1 [PHI [Type int] {$numBytes $nbLoop} $sources \
			       "numBytes.1"]
	    set p2 [$api Tcl_UtfPrev $p1 $bytes]
	    SetValueName $p2 "p.2"
	    set pInc [$api Tcl_UtfToUniChar $p2 $chVar]
	    SetValueName $pInc "pInc"
	    set ch1 [my load $chVar "ch1"]


	    my br $innerLoop
	label innerLoop:
	    set sources [list $outerLoop $nextInner]
	    set q [PHI [Type char*] {$trim $qLoop} $sources "q"]
	    set bytesLeft [PHI [Type int] {$numTrim $blLoop} $sources \
			       "bytesLeft"]
	    set qInc [$api Tcl_UtfToUniChar $q $chVar]
	    SetValueName $qInc "qInc"
	    set ch2 [my load $chVar "ch2"]
	    my condBr [my eq $ch1 $ch2] $doneInner $nextInner
	label doneInner:
	    my condBr [my le $bytesLeft $0] $fixP $nextOuter
	label nextInner:
	    set qLoop [my getelementptr $q [list $qInc] "q"]
	    set blLoop \
		[set bytesLeft1 [my sub $bytesLeft $qInc "bytesLeft.1"]]
	    my condBr [my gt $bytesLeft1 $0] $innerLoop $fixP
	label nextOuter:
	    set pLoop $p2
	    set nbLoop $numBytes1
	    my condBr [my gt $p2 $bytes] $outerLoop $doneOuter
	label fixP:
	    set p3 [my phi [list $p2 $p2] [list $doneInner $nextInner] "p.3"]
	    set p4 [my getelementptr $p3 [list $pInc] "p.4"]
	    my br $doneOuter
	label doneOuter:
	    set p5 [my phi [list $p2 $p4] [list $nextOuter $fixP] "p.5"]
	    my ret [my sub $numBytes1 [my cast(int) [my diff $p5 $bytes]]]
	}

	##### Function tcl.impl.isAscii #####
	# Replacement for non-exposed UniCharIsAscii
	#
	# Type signature: ch:int16 -> int1
	#
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	# character class given by 'class' (enumeration encoded as int32).

	set f [$m local "tcl.strclass" ZEROONE<-STRING,int]
	params objPtr class
	build {
	    nonnull $objPtr
	    lassign [my GetUnicode $objPtr obj] length string
	    set p0 [my uniqueUndef int16* "p"]
	    set p1 [my uniqueUndef int16* "p"]
	    set p2 [my uniqueUndef int16* "p"]
	    set p3 [my uniqueUndef int16* "p"]
	    set p4 [my uniqueUndef int16* "p"]
	    set p5 [my uniqueUndef int16* "p"]
	    set p6 [my uniqueUndef int16* "p"]
	    set p7 [my uniqueUndef int16* "p"]
	    set p8 [my uniqueUndef int16* "p"]
	    set p9 [my uniqueUndef int16* "p"]
	    set p10 [my uniqueUndef int16* "p"]
	    set p11 [my uniqueUndef int16* "p"]
	    set p12 [my uniqueUndef int16* "p"]
	    my condBr [my gt $length $0] $test $match
	label test:
	    set end [my getelementptr $string [list $length]]
	    my switch $class $xdigit \
		0 $alnum 1 $alpha 2 $ascii 3 $control \
		4 $digit 5 $graph 6 $lower 7 $print \
		8 $punct 9 $space 10 $upper 11 $word
	    set n [list $1]
	label alnum:
	    set p [my phi [list $string $p0] [list $test $alnumNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsAlnum [my load $p]] $0] \
		$alnumNext $fail
	label alnumNext "alnum.next"
	    ReplaceAllUsesWith $p0 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $alnum $match
	label alpha:
	    set p [my phi [list $string $p1] [list $test $alphaNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsAlpha [my load $p]] $0] \
		$alphaNext $fail
	label alphaNext "alpha.next"
	    ReplaceAllUsesWith $p1 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $alpha $match
	label ascii:
	    set p [my phi [list $string $p2] [list $test $asciiNext] "p"]
	    my condBr [my Call tcl.impl.isAscii [my load $p]] \
		$asciiNext $fail
	label asciiNext "ascii.next"
	    ReplaceAllUsesWith $p2 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $ascii $match
	label control:
	    set p [my phi [list $string $p3] [list $test $controlNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsControl [my load $p]] $0] \
		$controlNext $fail
	label controlNext "control.next"
	    ReplaceAllUsesWith $p3 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $control $match
	label digit:
	    set p [my phi [list $string $p4] [list $test $digitNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsDigit [my load $p]] $0] \
		$digitNext $fail
	label digitNext "digit.next"
	    ReplaceAllUsesWith $p4 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $digit $match
	label graph:
	    set p [my phi [list $string $p5] [list $test $graphNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsGraph [my load $p]] $0] \
		$graphNext $fail
	label graphNext "graph.next"
	    ReplaceAllUsesWith $p5 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $graph $match
	label lower:
	    set p [my phi [list $string $p6] [list $test $lowerNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsLower [my load $p]] $0] \
		$lowerNext $fail
	label lowerNext "lower.next"
	    ReplaceAllUsesWith $p6 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $lower $match
	label print:
	    set p [my phi [list $string $p7] [list $test $printNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsPrint [my load $p]] $0] \
		$printNext $fail
	label printNext "print.next"
	    ReplaceAllUsesWith $p7 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $print $match
	label punct:
	    set p [my phi [list $string $p8] [list $test $punctNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsPunct [my load $p]] $0] \
		$punctNext $fail
	label punctNext "punct.next"
	    ReplaceAllUsesWith $p8 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $punct $match
	label space:
	    set p [my phi [list $string $p9] [list $test $spaceNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsSpace [my load $p]] $0] \
		$spaceNext $fail
	label spaceNext "space.next"
	    ReplaceAllUsesWith $p9 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $space $match
	label upper:
	    set p [my phi [list $string $p10] [list $test $upperNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsUpper [my load $p]] $0] \
		$upperNext $fail
	label upperNext "upper.next"
	    ReplaceAllUsesWith $p10 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $upper $match
	label word:
	    set p [my phi [list $string $p11] [list $test $wordNext] "p"]
	    my condBr [my neq [$api Tcl_UniCharIsWordChar [my load $p]] $0] \
		$wordNext $fail
	label wordNext "word.next"
	    ReplaceAllUsesWith $p11 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $word $match
	label xdigit:
	    set p [my phi [list $string $p12] [list $test $xdigitNext] "p"]
	    my condBr [my Call tcl.impl.isXdigit [my load $p]] \
		$xdigitNext $fail
	label xdigitNext "xdigit.next"
	    ReplaceAllUsesWith $p12 [set p [my getelementptr $p $n "p"]]
	    my condBr [my lt $p $end] $xdigit $match
	label match:
	    my ret [Const true bool]
	label fail:
	    my ret [Const false bool]
	}

	##### Function tcl.impl.getIndex #####








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	# character class given by 'class' (enumeration encoded as int32).

	set f [$m local "tcl.strclass" ZEROONE<-STRING,int]
	params objPtr class
	build {
	    nonnull $objPtr
	    lassign [my GetUnicode $objPtr obj] length string













	    my condBr [my gt $length $0] $test $match
	label test:
	    set end [my getelementptr $string [list $length]]
	    my switch $class $xdigit \
		0 $alnum 1 $alpha 2 $ascii 3 $control \
		4 $digit 5 $graph 6 $lower 7 $print \
		8 $punct 9 $space 10 $upper 11 $word
	    set n [list $1]
	label alnum:
	    set p [PHI [Type int16*] {$string $p0} {$test $alnumNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsAlnum [my load $p]] $0] \
		$alnumNext $fail
	label alnumNext "alnum.next"
	    set p0 [my getelementptr $p $n "p.0"]
	    my condBr [my lt $p0 $end] $alnum $match
	label alpha:
	    set p [PHI [Type int16*] {$string $p1} {$test $alphaNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsAlpha [my load $p]] $0] \
		$alphaNext $fail
	label alphaNext "alpha.next"
	    set p1 [my getelementptr $p $n "p.1"]
	    my condBr [my lt $p1 $end] $alpha $match
	label ascii:
	    set p [PHI [Type int16*] {$string $p2} {$test $asciiNext} "p"]
	    my condBr [my Call tcl.impl.isAscii [my load $p]] \
		$asciiNext $fail
	label asciiNext "ascii.next"
	    set p2 [my getelementptr $p $n "p.2"]
	    my condBr [my lt $p2 $end] $ascii $match
	label control:
	    set p [PHI [Type int16*] {$string $p3} {$test $controlNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsControl [my load $p]] $0] \
		$controlNext $fail
	label controlNext "control.next"
	    set p3 [my getelementptr $p $n "p.3"]
	    my condBr [my lt $p3 $end] $control $match
	label digit:
	    set p [PHI [Type int16*] {$string $p4} {$test $digitNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsDigit [my load $p]] $0] \
		$digitNext $fail
	label digitNext "digit.next"
	    set p4 [my getelementptr $p $n "p.4"]
	    my condBr [my lt $p4 $end] $digit $match
	label graph:
	    set p [PHI [Type int16*] {$string $p5} {$test $graphNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsGraph [my load $p]] $0] \
		$graphNext $fail
	label graphNext "graph.next"
	    set p5 [my getelementptr $p $n "p.5"]
	    my condBr [my lt $p5 $end] $graph $match
	label lower:
	    set p [PHI [Type int16*] {$string $p6} {$test $lowerNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsLower [my load $p]] $0] \
		$lowerNext $fail
	label lowerNext "lower.next"
	    set p6 [my getelementptr $p $n "p.6"]
	    my condBr [my lt $p6 $end] $lower $match
	label print:
	    set p [PHI [Type int16*] {$string $p7} {$test $printNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsPrint [my load $p]] $0] \
		$printNext $fail
	label printNext "print.next"
	    set p7 [my getelementptr $p $n "p.7"]
	    my condBr [my lt $p7 $end] $print $match
	label punct:
	    set p [PHI [Type int16*] {$string $p8} {$test $punctNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsPunct [my load $p]] $0] \
		$punctNext $fail
	label punctNext "punct.next"
	    set p8 [my getelementptr $p $n "p.8"]
	    my condBr [my lt $p8 $end] $punct $match
	label space:
	    set p [PHI [Type int16*] {$string $p9} {$test $spaceNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsSpace [my load $p]] $0] \
		$spaceNext $fail
	label spaceNext "space.next"
	    set p9 [my getelementptr $p $n "p.9"]
	    my condBr [my lt $p9 $end] $space $match
	label upper:
	    set p [PHI [Type int16*] {$string $p10} {$test $upperNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsUpper [my load $p]] $0] \
		$upperNext $fail
	label upperNext "upper.next"
	    set p10 [my getelementptr $p $n "p.10"]
	    my condBr [my lt $p10 $end] $upper $match
	label word:
	    set p [PHI [Type int16*] {$string $p11} {$test $wordNext} "p"]
	    my condBr [my neq [$api Tcl_UniCharIsWordChar [my load $p]] $0] \
		$wordNext $fail
	label wordNext "word.next"
	    set p11 [my getelementptr $p $n "p.11"]
	    my condBr [my lt $p11 $end] $word $match
	label xdigit:
	    set p [PHI [Type int16*] {$string $p12} {$test $xdigitNext} "p"]
	    my condBr [my Call tcl.impl.isXdigit [my load $p]] \
		$xdigitNext $fail
	label xdigitNext "xdigit.next"
	    set p12 [my getelementptr $p $n "p.12"]
	    my condBr [my lt $p12 $end] $xdigit $match
	label match:
	    my ret [Const true bool]
	label fail:
	    my ret [Const false bool]
	}

	##### Function tcl.impl.getIndex #####
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		    [my mult $strLen $sizeof(Tcl_UniChar)]]
	    set wsres [my select [my eq $cmp $0] $targetObj $stringObj]
	    my br $done
	label map:
	    lassign [my GetUnicode $targetObj "target"] tgtLen tgtPtr
	    set result [$api Tcl_NewUnicodeObj $strPtr $0]
	    set srcPtr0 [my load $srcPtr]
	    set prevLoop [my uniqueUndef [TypeOf $strPtr] "prev"]
	    set curLoop [my uniqueUndef [TypeOf $strPtr] "cur"]
	    set end [my getelementptr $strPtr [list $strLen]]
	    my br $maplooptest1
	label maplooptest1 "map.loop.test"
	    set sources [list $map $maploopnext]
	    set cur [my phi [list $strPtr $curLoop] $sources "cur"]
	    set prev [my phi [list $strPtr $prevLoop] $sources "prev"]
	    my condBr [my lt $cur $end] $maplooptest2 $mapdone
	label maplooptest2 "map.loop.test"
	    my condBr [my eq [my load $cur] $srcPtr0] \
		$maplooptest3 $maploopnext
	label maplooptest3 "map.loop.test"
	    my condBr [my eq $srcLen $1] $maplooptest5 $maplooptest4
	label maplooptest4 "map.loop.test"








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		    [my mult $strLen $sizeof(Tcl_UniChar)]]
	    set wsres [my select [my eq $cmp $0] $targetObj $stringObj]
	    my br $done
	label map:
	    lassign [my GetUnicode $targetObj "target"] tgtLen tgtPtr
	    set result [$api Tcl_NewUnicodeObj $strPtr $0]
	    set srcPtr0 [my load $srcPtr]


	    set end [my getelementptr $strPtr [list $strLen]]
	    my br $maplooptest1
	label maplooptest1 "map.loop.test"
	    set sources {$map $maploopnext}
	    set cur [PHI [TypeOf $strPtr] {$strPtr $curLoop} $sources "cur"]
	    set prev [PHI [TypeOf $strPtr] {$strPtr $prevLoop} $sources "prev"]
	    my condBr [my lt $cur $end] $maplooptest2 $mapdone
	label maplooptest2 "map.loop.test"
	    my condBr [my eq [my load $cur] $srcPtr0] \
		$maplooptest3 $maploopnext
	label maplooptest3 "map.loop.test"
	    my condBr [my eq $srcLen $1] $maplooptest5 $maplooptest4
	label maplooptest4 "map.loop.test"
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	    set cur2 [my getelementptr $prev3 [list ${-1}] "cur"]
	    $api Tcl_AppendUnicodeToObj $result $tgtPtr $tgtLen
	    my br $maploopnext
	label maploopnext "map.loop.next"
	    set sources [list $maplooptest2 $maplooptest4 $maploopbody3]
	    set prev4 [my phi [list $prev $prev $prev3] $sources "prev"]
	    set cur3 [my phi [list $cur $cur $cur2] $sources "cur"]
	    ReplaceAllUsesWith $prevLoop $prev4
	    ReplaceAllUsesWith $curLoop \
		[my getelementptr $cur3 [list $1] "cur"]
	    my br $maplooptest1
	label mapdone "map.done"
	    my assume [my not [my shared $result]]
	    my condBr [my eq $prev $cur] $done $maplast
	label maplast "map.addLast"
	    $api Tcl_AppendUnicodeToObj $result $prev \
		[my cast(int) [my diff $cur $prev] "len"]








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	    set cur2 [my getelementptr $prev3 [list ${-1}] "cur"]
	    $api Tcl_AppendUnicodeToObj $result $tgtPtr $tgtLen
	    my br $maploopnext
	label maploopnext "map.loop.next"
	    set sources [list $maplooptest2 $maplooptest4 $maploopbody3]
	    set prev4 [my phi [list $prev $prev $prev3] $sources "prev"]
	    set cur3 [my phi [list $cur $cur $cur2] $sources "cur"]
	    set prevLoop $prev4

	    set curLoop [my getelementptr $cur3 [list $1] "cur"]
	    my br $maplooptest1
	label mapdone "map.done"
	    my assume [my not [my shared $result]]
	    my condBr [my eq $prev $cur] $done $maplast
	label maplast "map.addLast"
	    $api Tcl_AppendUnicodeToObj $result $prev \
		[my cast(int) [my diff $cur $prev] "len"]
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	    set listPtr [my load [my cast(ptr) \
		    [my gep $list 0 Tcl_Obj.internalRep 0] \
		    TclList*] "listPtr"]
	    my condBr [my eq [my dereference $listPtr 0 TclList.refCount] $1] \
		$sublistInplace $sublistNew
	label sublistInplace "sublist.inPlace"
	    set onePast [my add $to $1 "onePast"]
	    set loopIndex [my uniqueUndef int "index"]
	    my br $sublistInplaceFreeTest
	label sublistInplaceFreeTest "sublist.inPlace.loop.test"
	    set sources [list $sublistInplace $sublistInplaceFree]
	    set index [my phi [list $onePast $loopIndex] $sources "index"]
	    my condBr [my lt $index $objc] \
		$sublistInplaceFree $sublistInplaceDone
	label sublistInplaceFree "sublist.inPlace.loop.body"
	    ReplaceAllUsesWith $loopIndex [my add $index $1 "index"]
	    set obj [my load [my getelementptr $objv [list $index]] "objPtr"]
	    my dropReference $obj
	    my br $sublistInplaceFreeTest
	label sublistInplaceDone "sublist.inPlace.done"
	    my storeInStruct $listPtr TclList.elemCount $onePast
	    my storeInStruct $listPtr TclList.canonicalFlag $1
	    $api TclInvalidateStringRep $list








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	    set listPtr [my load [my cast(ptr) \
		    [my gep $list 0 Tcl_Obj.internalRep 0] \
		    TclList*] "listPtr"]
	    my condBr [my eq [my dereference $listPtr 0 TclList.refCount] $1] \
		$sublistInplace $sublistNew
	label sublistInplace "sublist.inPlace"
	    set onePast [my add $to $1 "onePast"]

	    my br $sublistInplaceFreeTest
	label sublistInplaceFreeTest "sublist.inPlace.loop.test"
	    set sources {$sublistInplace $sublistInplaceFree}
	    set index [PHI [Type int32] {$onePast $loopIndex} $sources "index"]
	    my condBr [my lt $index $objc] \
		$sublistInplaceFree $sublistInplaceDone
	label sublistInplaceFree "sublist.inPlace.loop.body"
	    set loopIndex [my add $index $1 "index"]
	    set obj [my load [my getelementptr $objv [list $index]] "objPtr"]
	    my dropReference $obj
	    my br $sublistInplaceFreeTest
	label sublistInplaceDone "sublist.inPlace.done"
	    my storeInStruct $listPtr TclList.elemCount $onePast
	    my storeInStruct $listPtr TclList.canonicalFlag $1
	    $api TclInvalidateStringRep $list
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	    set listPtr [my load [my cast(ptr) \
		    [my gep $list 0 Tcl_Obj.internalRep 0] \
		    TclList*] "listPtr"]
	    my condBr [my eq [my dereference $listPtr 0 TclList.refCount] $1] \
		$sublistInplace $sublistNew
	label sublistInplace "sublist.inPlace"
	    set onePast [my add $to $1 "onePast"]
	    set loopIndex [my uniqueUndef int "index"]
	    my br $sublistInplaceFreeTest
	label sublistInplaceFreeTest "sublist.inPlace.free.test"
	    set sources [list $sublistInplace $sublistInplaceFree]
	    set index [my phi [list $onePast $loopIndex] $sources "index"]
	    my condBr [my lt $index $objc] \
		$sublistInplaceFree $sublistInplaceDone
	label sublistInplaceFree "sublist.inPlace.free"
	    ReplaceAllUsesWith $loopIndex [my add $index $1 "index"]
	    set obj [my load [my getelementptr $objv [list $index]] "objPtr"]
	    my dropReference $obj
	    my br $sublistInplaceFreeTest
	label sublistInplaceDone "sublist.inPlace.done"
	    my storeInStruct $listPtr TclList.elemCount $onePast
	    my storeInStruct $listPtr TclList.canonicalFlag $1
	    $api TclInvalidateStringRep $list








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	    set listPtr [my load [my cast(ptr) \
		    [my gep $list 0 Tcl_Obj.internalRep 0] \
		    TclList*] "listPtr"]
	    my condBr [my eq [my dereference $listPtr 0 TclList.refCount] $1] \
		$sublistInplace $sublistNew
	label sublistInplace "sublist.inPlace"
	    set onePast [my add $to $1 "onePast"]

	    my br $sublistInplaceFreeTest
	label sublistInplaceFreeTest "sublist.inPlace.free.test"
	    set sources {$sublistInplace $sublistInplaceFree}
	    set index [PHI [Type int32] {$onePast $loopIndex} $sources "index"]
	    my condBr [my lt $index $objc] \
		$sublistInplaceFree $sublistInplaceDone
	label sublistInplaceFree "sublist.inPlace.free"
	    set loopIndex [my add $index $1 "index"]
	    set obj [my load [my getelementptr $objv [list $index]] "objPtr"]
	    my dropReference $obj
	    my br $sublistInplaceFreeTest
	label sublistInplaceDone "sublist.inPlace.done"
	    my storeInStruct $listPtr TclList.elemCount $onePast
	    my storeInStruct $listPtr TclList.canonicalFlag $1
	    $api TclInvalidateStringRep $list
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	    set lenVar [my alloc int]
	    set objvVar [my alloc STRING*]
	    set code [$api Tcl_ListObjGetElements $interp $list $lenVar $objvVar]
	    my condBr [my eq $code $0] $realCheck $fail
	label realCheck:
	    set objc [my load $lenVar "objc"]
	    set objv [my load $objvVar "objv"]
	    set iLoop [my uniqueUndef int "i"]
	    my condBr [my gt $objc $0] $loop $done
	label loop:
	    set i [my phi [list $0 $iLoop] [list $realCheck $loopNext] "i"]
	    set obj [my load [my getelementptr $objv [list $i]] "obj"]
	    lassign [my GetString $obj "element"] len2 bytes2
	    my condBr [my eq $len1 $len2] $loopCompare $loopNext
	label loopCompare:
	    my condBr [my eq [my memcmp $bytes1 $bytes2 $len1] $0] \
		$done $loopNext
	label loopNext:
	    ReplaceAllUsesWith $iLoop [set i [my add $i $1 "i"]]
	    my condBr [my lt $i $objc] $loop $done
	label fail:
	    my store $1 $ecVar
	    my ret [my fail ZEROONE]
	label done:
	    set flag [my phi [list [Const false bool] [Const false bool] [Const true bool]] \
		    [list $realCheck $loopNext $loopCompare] "flag"]








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	    set lenVar [my alloc int]
	    set objvVar [my alloc STRING*]
	    set code [$api Tcl_ListObjGetElements $interp $list $lenVar $objvVar]
	    my condBr [my eq $code $0] $realCheck $fail
	label realCheck:
	    set objc [my load $lenVar "objc"]
	    set objv [my load $objvVar "objv"]

	    my condBr [my gt $objc $0] $loop $done
	label loop:
	    set i [PHI [Type int32] {$0 $iLoop} {$realCheck $loopNext} "i"]
	    set obj [my load [my getelementptr $objv [list $i]] "obj"]
	    lassign [my GetString $obj "element"] len2 bytes2
	    my condBr [my eq $len1 $len2] $loopCompare $loopNext
	label loopCompare:
	    my condBr [my eq [my memcmp $bytes1 $bytes2 $len1] $0] \
		$done $loopNext
	label loopNext:
	    set iLoop [set i [my add $i $1 "i"]]
	    my condBr [my lt $i $objc] $loop $done
	label fail:
	    my store $1 $ecVar
	    my ret [my fail ZEROONE]
	label done:
	    set flag [my phi [list [Const false bool] [Const false bool] [Const true bool]] \
		    [list $realCheck $loopNext $loopCompare] "flag"]
︙︙
Changes to codegen/struct.tcl.
︙︙
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	# Results:
	#	Returns a reference to the phi node
	#
	# Side effects:
	#	Stores data regarding the fixup in the variable '@phis@'
	#	in the caller

	proc PHI {type sources values {name {}}} {
	    upvar 1 @phis@ phis
	    set phi [uplevel 1 [list my phiStub $type $name]]
	    lappend phis $phi $sources $values
	    return $phi
	}

	# FixupPhis --








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	# Results:
	#	Returns a reference to the phi node
	#
	# Side effects:
	#	Stores data regarding the fixup in the variable '@phis@'
	#	in the caller

	proc PHI {type values sources {name {}}} {
	    upvar 1 @phis@ phis
	    set phi [uplevel 1 [list my phiStub $type $name]]
	    lappend phis $phi $sources $values
	    return $phi
	}

	# FixupPhis --
︙︙
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		    if {[TypeOf $v] ne [TypeOf $phi]} {
			return -code error \
			    "Expected a value of type\
                             [PrintTypeToString [TypeOf $phi]]\
                             for [PrintValueTosString $phi] but found\
                             [PrintTypeToString [TypeOf $v]]"
		    }
		    set label [uplevel 1 [list my LABEL $source]]
		    AddIncoming $phi $value $label
		}
	    }
	}
    }
}

# Class LLVMBuilder --








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		    if {[TypeOf $v] ne [TypeOf $phi]} {
			return -code error \
			    "Expected a value of type\
                             [PrintTypeToString [TypeOf $phi]]\
                             for [PrintValueTosString $phi] but found\
                             [PrintTypeToString [TypeOf $v]]"
		    }
		    set label [uplevel 1 [list my LABEL $s]]
		    AddIncoming $phi $v $label
		}
	    }
	}
    }
}

# Class LLVMBuilder --
︙︙
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