Use iso-8859-1 (fixed-width) instead of utf8 for parsing when we can.

This improves the "make spectest" performance by about 13%.
rakudo · May 31, 2009 · 50ec44e · 50ec44e
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commit 50ec44e
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diff --git a/build/PARROT_REVISION b/build/PARROT_REVISION
@@ -1 +1 @@
-39258
+39288
diff --git a/perl6.pir b/perl6.pir
@@ -354,7 +354,7 @@ to the Perl 6 compiler.
   not_harness:
 
     $P0 = compreg 'perl6'
-    $P1 = $P0.'command_line'(args_str, 'encoding'=>'utf8', 'transcode'=>'ascii')
+    $P1 = $P0.'command_line'(args_str, 'encoding'=>'utf8', 'transcode'=>'ascii iso-8859-1')
 
     .include 'iterator.pasm'
     .local pmc iter

diff --git a/src/builtins/eval.pir b/src/builtins/eval.pir
@@ -39,7 +39,7 @@ itself can be found in src/builtins/control.pir.
     .local pmc compiler
     compiler = compreg lang
     # XXX FIXME:  We should allow the compiler to choose default encoding/transcode
-    .tailcall compiler.'evalfiles'(filename, 'encoding'=>'utf8', 'transcode'=>'ascii')
+    .tailcall compiler.'evalfiles'(filename, 'encoding'=>'utf8', 'transcode'=>'ascii iso-8859-1')
 
   lang_parrot:
     ##  load_bytecode currently doesn't accept non-ascii filenames (TT #65)