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Pseudocode: Generate merge instruction regardless of number of branches

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This commit is contained in:
Alexey Sedunov
2014-07-25 20:59:00 +04:00
parent d008cb8c21
commit 9f3ebe5f3b
21 changed files with 525 additions and 500 deletions
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compiler/testData/cfg/expressions/LazyBooleans.instructions
+9 -7
View File
@@ -70,20 +70,22 @@ L9:
r(a) -> <v21>
jf(L10|<v21>) NEXT:[read (Unit), r(11) -> <v22>]
r(11) -> <v22>
jmp(L11) NEXT:[r(12) -> <v23>]
jmp(L11) NEXT:[merge(if (a) 11|<v22>) -> <v23>]
L10:
read (Unit) PREV:[jf(L10|<v21>)]
L11:
r(12) -> <v23> PREV:[jmp(L11), read (Unit)]
merge(if (a) 11|<v22>) -> <v23> PREV:[jmp(L11), read (Unit)]
r(12) -> <v24>
mark(if (a) else 13)
r(a) -> <v24>
jf(L12|<v24>) NEXT:[r(13) -> <v25>, read (Unit)]
r(a) -> <v25>
jf(L12|<v25>) NEXT:[r(13) -> <v26>, read (Unit)]
read (Unit)
jmp(L13) NEXT:[r(14) -> <v26>]
jmp(L13) NEXT:[merge(if (a) else 13|<v26>) -> <v27>]
L12:
r(13) -> <v25> PREV:[jf(L12|<v24>)]
r(13) -> <v26> PREV:[jf(L12|<v25>)]
L13:
r(14) -> <v26> PREV:[jmp(L13), r(13) -> <v25>]
merge(if (a) else 13|<v26>) -> <v27> PREV:[jmp(L13), r(13) -> <v26>]
r(14) -> <v28>
L1:
1 <END> NEXT:[<SINK>]
error:
compiler/testData/cfg/expressions/LazyBooleans.values
+7 -7
View File
@@ -42,11 +42,11 @@ if (a || b) 8 else 9
10 <v20>: * NEW: r(10) -> <v20>
a <v21>: Boolean NEW: r(a) -> <v21>
11 <v22>: * NEW: r(11) -> <v22>
if (a) 11 <v22>: * COPY
12 <v23>: * NEW: r(12) -> <v23>
a <v24>: Boolean NEW: r(a) -> <v24>
13 <v25>: * NEW: r(13) -> <v25>
if (a) else 13 <v25>: * COPY
14 <v26>: * NEW: r(14) -> <v26>
{ if (a) { 1 } else { 2 } 3 if (a && b) 5 else 6 7 if (a || b) 8 else 9 10 if (a) 11 12 if (a) else 13 14 } <v26>: * COPY
if (a) 11 <v23>: * NEW: merge(if (a) 11|<v22>) -> <v23>
12 <v24>: * NEW: r(12) -> <v24>
a <v25>: Boolean NEW: r(a) -> <v25>
13 <v26>: * NEW: r(13) -> <v26>
if (a) else 13 <v27>: * NEW: merge(if (a) else 13|<v26>) -> <v27>
14 <v28>: * NEW: r(14) -> <v28>
{ if (a) { 1 } else { 2 } 3 if (a && b) 5 else 6 7 if (a || b) 8 else 9 10 if (a) 11 12 if (a) else 13 14 } <v28>: * COPY
=====================