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Mark some expressions after processing their components

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when it's semantically correct

Expressions: calls, 'for' loops, elvis operators
It's significant for reporting 'unreachable code' correctly
This commit is contained in:
Svetlana Isakova
2014-06-12 12:58:57 +04:00
parent 6e622f2301
commit 9480907514
39 changed files with 181 additions and 178 deletions
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compiler/testData/cfg-variables/basic/VariablesUsage.instructions
+4 -4
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@@ -11,14 +11,14 @@ L0:
2 mark({ var a = 1 use(a) a = 2 use(a) })
v(var a = 1) INIT: in: {} out: {a=D}
r(1) -> <v0> INIT: in: {a=D} out: {a=D}
w(a|<v0>) INIT: in: {a=D} out: {a=ID}
mark(use(a)) INIT: in: {a=ID} out: {a=ID} USE: in: {a=READ} out: {a=READ}
r(a) -> <v1> USE: in: {a=WRITTEN_AFTER_READ} out: {a=READ}
w(a|<v0>) INIT: in: {a=D} out: {a=ID} USE: in: {a=READ} out: {a=READ}
r(a) -> <v1> INIT: in: {a=ID} out: {a=ID} USE: in: {a=WRITTEN_AFTER_READ} out: {a=READ}
mark(use(a))
call(use, use|<v1>) -> <v2>
r(2) -> <v3> USE: in: {a=WRITTEN_AFTER_READ} out: {a=WRITTEN_AFTER_READ}
w(a|<v3>) USE: in: {a=READ} out: {a=WRITTEN_AFTER_READ}
mark(use(a)) USE: in: {a=READ} out: {a=READ}
r(a) -> <v4> USE: in: {} out: {a=READ}
mark(use(a))
call(use, use|<v4>) -> <v5>
L1:
1 <END> INIT: in: {} out: {}