Loops are followed by read(Unit) in order to prevent the CFA from thinking that the condition is returned

2011-04-14 19:53:32 +04:00
parent 9d32723cbf
commit 5963e952da
5 changed files with 69 additions and 12 deletions
@@ -227,8 +227,9 @@ l4:
 l6:
    r(2)
    jmp(l3)
-l1:
 l2:
+    read (Unit)
+l1:
    <END>
 =====================
 == t3 ==
@@ -265,6 +266,7 @@ l5:
 l6:
    jmp(l4)
 l3:
+    read (Unit)
    r(5)
 l2:
    r(2)
@@ -303,8 +305,9 @@ l5:
    read (Unit)
 l6:
    jmp(l4)
-l2:
 l3:
+    read (Unit)
+l2:
    r(2)
 l1:
    <END>
@@ -347,8 +350,9 @@ l4:
 l6:
    r(2)
    jmp?(l3)
-l1:
 l2:
+    read (Unit)
+l1:
    <END>
 =====================
 == t3 ==
@@ -388,6 +392,7 @@ l5:
 l6:
    jmp?(l4)
 l3:
+    read (Unit)
    r(5)
 l2:
    r(2)
@@ -429,8 +434,9 @@ l5:
    read (Unit)
 l6:
    jmp?(l4)
-l2:
 l3:
+    read (Unit)
+l2:
    r(2)
 l1:
    <END>
@@ -0,0 +1,42 @@
+== main ==
+fun main() {
+    while(1 > 0) {
+      2
+    }
+}
+---------------------
+l0:
+    <START>
+l3:
+    r(1)
+    r(0)
+    r(>)
+    r(1 > 0)
+    jf(l2)
+    r(2)
+    jmp(l3)
+l2:
+    read (Unit)
+l1:
+    <END>
+=====================
+== dowhile ==
+fun dowhile() {
+    do {return}
+    while(1 > 0)
+}
+---------------------
+l0:
+    <START>
+l3:
+    ret l1
+    r(1)
+    r(0)
+    r(>)
+    r(1 > 0)
+    jt(l3)
+l2:
+    read (Unit)
+l1:
+    <END>
+=====================
@@ -0,0 +1,10 @@
+fun main() {
+    while(1 > 0) {
+      2
+    }
+}
+
+fun dowhile() {
+    do {return}
+    while(1 > 0)
+}