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Control-flow analysis: do-while scope is ended after condition but before jump #KT-15334 Fixed

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This commit is contained in:
Mikhail Glukhikh
2017-01-09 18:49:17 +03:00
parent b7a5ff456f
commit b81268cca1
14 changed files with 208 additions and 25 deletions
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compiler/testData/cfg-variables/bugs/doWhileNotDefined.instructions
Vendored
+11 -11
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@@ -11,33 +11,33 @@ L0:
v(cond1: Boolean) INIT: in: {} out: {cond1=D}
magic[FAKE_INITIALIZER](cond1: Boolean) -> <v0> INIT: in: {cond1=D} out: {cond1=D}
w(cond1|<v0>) INIT: in: {cond1=D} out: {cond1=ID}
2 mark({ do { if (cond1) continue val cond2 = false } while (cond2) }) INIT: in: {cond1=ID} out: {cond1=ID} USE: in: {cond1=READ} out: {cond1=READ}
2 mark({ do { if (cond1) continue val cond2 = false } while (cond2) }) INIT: in: {cond1=ID} out: {cond1=ID} USE: in: {cond1=READ} out: {cond1=READ}
3 mark(do { if (cond1) continue val cond2 = false } while (cond2))
L2 [loop entry point]:
L4 [body entry point]:
mark({ if (cond1) continue val cond2 = false }) INIT: in: {cond1=ID, cond2=I?} out: {cond1=ID, cond2=I?}
mark({ if (cond1) continue val cond2 = false })
mark(if (cond1) continue)
r(cond1) -> <v1>
jf(L7|<v1>)
jmp(L6) USE: in: {cond1=READ, cond2=READ} out: {cond1=READ, cond2=READ}
jmp(L6) USE: in: {cond1=READ, cond2=READ} out: {cond1=READ, cond2=READ}
- jmp(L8)
L7 [else branch]:
read (Unit) INIT: in: {cond1=ID, cond2=I?} out: {cond1=ID, cond2=I?}
read (Unit) INIT: in: {cond1=ID} out: {cond1=ID}
L8 ['if' expression result]:
merge(if (cond1) continue|!<v2>) -> <v3>
v(val cond2 = false) INIT: in: {cond1=ID, cond2=I?} out: {cond1=ID, cond2=I?D}
r(false) -> <v4> INIT: in: {cond1=ID, cond2=I?D} out: {cond1=ID, cond2=I?D}
w(cond2|<v4>) INIT: in: {cond1=ID, cond2=I?D} out: {cond1=ID, cond2=ID}
v(val cond2 = false) INIT: in: {cond1=ID} out: {cond1=ID, cond2=D}
r(false) -> <v4> INIT: in: {cond1=ID, cond2=D} out: {cond1=ID, cond2=D}
w(cond2|<v4>) INIT: in: {cond1=ID, cond2=D} out: {cond1=ID, cond2=ID} USE: in: {cond1=READ, cond2=READ} out: {cond1=READ, cond2=READ}
L5 [body exit point]:
L6 [condition entry point]:
r(cond2) -> <v5> INIT: in: {cond1=ID, cond2=I?} out: {cond1=ID, cond2=I?}
jt(L2|<v5>) USE: in: {cond1=READ, cond2=READ} out: {cond1=READ, cond2=READ}
r(cond2) -> <v5> INIT: in: {cond1=ID, cond2=I?} out: {cond1=ID, cond2=I?} USE: in: {cond1=READ} out: {cond1=READ, cond2=READ}
2 jt(L2|<v5>) INIT: in: {cond1=ID} out: {cond1=ID} USE: in: {cond1=READ} out: {cond1=READ}
L3 [loop exit point]:
read (Unit)
L1:
1 <END> INIT: in: {cond1=ID} out: {cond1=ID}
1 <END>
error:
<ERROR> INIT: in: {} out: {}
sink:
<SINK> INIT: in: {cond1=I?} out: {cond1=I?} USE: in: {} out: {}
<SINK> INIT: in: {cond1=I?} out: {cond1=I?} USE: in: {} out: {}
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