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authordos-reis <gdr@axiomatics.org>2011-12-15 22:59:18 +0000
committerdos-reis <gdr@axiomatics.org>2011-12-15 22:59:18 +0000
commitb32f6a05c34234a5f90d292e3b646810ffd2064b (patch)
tree7256a9d629e15668f9ca48d53f3ed7dca7e12831 /src
parentc2527210cb847af8e5b1c9ff4fcbd52342195e99 (diff)
downloadopen-axiom-b32f6a05c34234a5f90d292e3b646810ffd2064b.tar.gz
* interp/g-util.boot (prefixWalk!): New.
* interp/g-opt.boot (cleanLoop!): Rename from removeLoopExitTag!. Adjust caller. Rewrite as a prefix walk.
Diffstat (limited to 'src')
-rw-r--r--src/ChangeLog6
-rw-r--r--src/interp/g-opt.boot6
-rw-r--r--src/interp/g-util.boot8
3 files changed, 17 insertions, 3 deletions
diff --git a/src/ChangeLog b/src/ChangeLog
index b82acad7..fd8f184a 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,11 @@
2011-12-15 Gabriel Dos Reis <gdr@cs.tamu.edu>
+ * interp/g-util.boot (prefixWalk!): New.
+ * interp/g-opt.boot (cleanLoop!): Rename from removeLoopExitTag!.
+ Adjust caller. Rewrite as a prefix walk.
+
+2011-12-15 Gabriel Dos Reis <gdr@cs.tamu.edu>
+
* interp/g-opt.boot (removeLoopExitTag!): New.
(optimize!): Run it first.
* interp/compiler.boot (nullifyTargetingLeaves): Remove.
diff --git a/src/interp/g-opt.boot b/src/interp/g-opt.boot
index 37087c9b..2dc0dd72 100644
--- a/src/interp/g-opt.boot
+++ b/src/interp/g-opt.boot
@@ -345,10 +345,10 @@ removeLeave! x == walkWith!(x,function f) where
x is ['%leave,.,y] and y is ['%return,:.] => resetTo(x,y)
x
-removeLoopExitTag! x == walkWith!(x,function f) where
+cleanLoop! x == prefixWalk!(x,function f) where
f x ==
x is ['%scope,tag,['%repeat,:itl,body,val]] =>
- resetTo(x,['%repeat,:itl,g(body,tag),g(val,tag)])
+ resetTo(x,f ['%repeat,:itl,g(body,tag),g(val,tag)])
x
g(x,tag) ==
atomic? x => x
@@ -364,7 +364,7 @@ removeLoopExitTag! x == walkWith!(x,function f) where
++ a lower intermediate form, applying several transformations
++ generaly intended to improve quality and efficiency.
optimize! x ==
- x := spliceSeq! packWhen! transformIF! removeLeave! removeLoopExitTag! x
+ x := spliceSeq! packWhen! transformIF! removeLeave! cleanLoop! x
changeVariableDefinitionToStore(x,nil)
simplifyVMForm cancelScopeLeave! spliceSeq! packWhen! inlineLocals!
groupTranscients! cancelScopeLeave! removeJunk! reduceXLAM! x
diff --git a/src/interp/g-util.boot b/src/interp/g-util.boot
index 8c741420..4404d105 100644
--- a/src/interp/g-util.boot
+++ b/src/interp/g-util.boot
@@ -137,6 +137,14 @@ walkWith!(x,f) ==
ys.first := walkWith!(first ys,f)
apply(f,x,nil)
+prefixWalk!(x,f) ==
+ atomic? x => x
+ x := apply(f,x,nil)
+ atomic? x => x
+ for xs in tails x | not atomic? first xs repeat
+ xs.first := prefixWalk!(first xs,f)
+ x
+
listify x ==
x is [.,:.] => x
[x]