Update test runner

run-tests

@@ -1,8 +1,66 @@
-unit sub MAIN(:a($author), :i($install));
+unit sub MAIN(
+  :a($author),
+  :i($install),
+  :$rmd,
+  :$disable-spesh,
+  :$disable-spesh-inline,
+  :$disable-JIT,
+  :$enable-spesh-nodelay,
+  :$enable-spesh-blocking,
+  :$enable-spesh-log,
+);
 
 say run(<raku --version>, :out).out.slurp.chomp;
 say "Running on $*DISTRO.gist().\n";
 
+if $rmd {
+    %*ENV<RAKUDO_MODULE_DEBUG> := 1;
+    say "RAKUDO_MODULE_DEBUG=1";
+}
+
+if $disable-spesh {
+    %*ENV<MVM_SPESH_DISABLE> := 1;
+    say "MVM_SPESH_DISABLE=1";
+}
+
+if $disable-spesh-inline {
+    %*ENV<MVM_SPESH_INLINE_DISABLE> := 1;
+    say "MVM_SPESH_INLINE_DISABLE=1";
+}
+
+if $disable-JIT {
+    %*ENV<MVM_JIT_DISABLE> := 1;
+    say "MVM_JIT_DISABLE=1";
+}
+
+if $enable-spesh-nodelay {
+    %*ENV<MVM_SPESH_NODELAY> := 1;
+    say "MVM_SPESH_NODELAY=1";
+}
+
+if $enable-spesh-blocking {
+    %*ENV<MVM_SPESH_BLOCKING> := 1;
+    say "MVM_SPESH_BLOCKING=1";
+}
+
+my $spesh-log;
+if $enable-spesh-log {
+    $spesh-log = (
+      $enable-spesh-log ~~ Bool ?? "spesh-log" !! $enable-spesh-log
+    ).IO;
+    %*ENV<MVM_SPESH_LOG> := $spesh-log.absolute;
+    say "MVM_SPESH_LOG=$spesh-log.relative()";
+}
+
+say ""
+  if $rmd
+  || $disable-spesh
+  || $disable-spesh-inline
+  || $disable-JIT
+  || $enable-spesh-nodelay
+  || $enable-spesh-blocking
+  || $enable-spesh-log;
+
 say "Testing {
     "dist.ini".IO.lines.head.substr(7)
 }{
@@ -15,6 +73,7 @@ my $done   = 0;
 sub process($proc, $filename) {
     if $proc {
         $proc.out.slurp;
+        $spesh-log.unlink if $spesh-log;
     }
     else {
         @failed.push($filename);
@@ -32,6 +91,12 @@ sub process($proc, $filename) {
         else {
             say "No output received, exit-code $proc.exitcode() ($proc.signal()):\n$proc.os-error()";
         }
+
+        if $spesh-log {
+            say "\nSpesh log requested, showing last 20000 lines:";
+            say $spesh-log.lines(:!chomp).tail(20000).join;
+            $spesh-log.unlink;
+        }
     }
 }