mescc: Remove jump calculation, use labels: ?.

* module/language/c99/compiler.mes (ast->info): Refactor (cond-expr
  ...)  using test-jump-label->info.

diff --git a/module/language/c99/compiler.mes b/module/language/c99/compiler.mes
index 9a2e120bc02930963f0e56295d6d700d95b6467c..3193c266b73ac964b8d5a69992969a7309be5e76 100644 (file)
--- a/module/language/c99/compiler.mes
+++ b/module/language/c99/compiler.mes
@@ -1455,40 +1455,18 @@
 
         ;; Hmm?
         ((expr-stmt (cond-expr ,test ,then ,else))
-         (let* ((text-length (length text))
-
-                (test-jump->info ((test->jump->info info) test))
-                (test+jump-info (test-jump->info 0))
-                (test-length (length (.text test+jump-info)))
-
-                (then-info ((ast->info test+jump-info) then))
-                (text-then-info (.text then-info))
-                (then-text (list-tail text-then-info test-length))
-                (then-length (length (object->list then-text)))
-
-                (jump-text (wrap-as (i386:Xjump 0)))
-                (jump-length (length (object->list jump-text)))
-
-                (test+then+jump-info
-                 (clone then-info
-                        #:text (append (.text then-info) jump-text)))
-
-                (else-info ((ast->info test+then+jump-info) else))
-                (text-else-info (.text else-info))
-                (else-text (list-tail text-else-info (length (.text test+then+jump-info))))
-                (else-length (length (object->list else-text)))
-
-                (text+test-text (.text (test-jump->info (+ then-length jump-length))))
-                (test-text (list-tail text+test-text text-length))
-                (jump-text (wrap-as (i386:Xjump else-length))))
-
-           (clone info #:text
-                  (append text
-                          test-text
-                          then-text
-                          jump-text
-                          else-text)
-                  #:globals (.globals else-info))))
+         (let* ((source (with-output-to-string (lambda () (pretty-print-c99 `(cond-expr ,test (ellipsis) (ellipsis))))))
+                (info (append-text info (wrap-as `(#:comment ,source))))
+                (here (number->string (length text)))
+                (else-label (string-append (.function info) "_else_" here))
+                (break-label (string-append (.function info) "_break_" here))
+                (info ((test-jump-label->info info else-label) test))
+                (info ((ast->info info) then))
+                (info (append-text info (wrap-as (i386:jump-label `(#:local ,break-label)))))
+                (info (append-text info (wrap-as `(#:label ,else-label))))
+                (info ((ast->info info) else))
+                (info (append-text info (wrap-as `(#:label ,break-label)))))
+           info))
 
         ((switch ,expr (compd-stmt (block-item-list . ,statements)))
          (let* ((clauses (statements->clauses statements))