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recolic-hust
cs164_lab3_cg
Commits
7cc34772
There was an error fetching the commit references. Please try again later.
Commit
7cc34772
authored
6 years ago
by
Shivane Sabharwal
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Fixed WhileStmt, 21 tests
parent
d7a2294a
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2 changed files
src/main/java/chocopy/pa3/CodeGenImpl.java
+2
-1
2 additions, 1 deletion
src/main/java/chocopy/pa3/CodeGenImpl.java
src/test/data/pa3/sample/stmt_return_early.py.s
+398
-0
398 additions, 0 deletions
src/test/data/pa3/sample/stmt_return_early.py.s
with
400 additions
and
1 deletion
src/main/java/chocopy/pa3/CodeGenImpl.java
+
2
−
1
View file @
7cc34772
...
...
@@ -304,6 +304,7 @@ public class CodeGenImpl extends CodeGenBase {
public
Void
analyze
(
ReturnStmt
stmt
)
{
stmt
.
value
.
dispatch
(
this
);
backend
.
emitLW
(
A0
,
SP
,
0
,
"Load return value into A0"
);
backend
.
emitJ
(
epilogue
,
"Jump to epilogue"
);
return
null
;
}
...
...
@@ -400,7 +401,7 @@ public class CodeGenImpl extends CodeGenBase {
Label
exitLabel
=
new
Label
(
labelPrefix
+
".exit"
);
backend
.
emitLocalLabel
(
beginLabel
,
"WhileStmt: Begin"
);
backend
.
emitADDI
(
SP
,
SP
,
-
4
,
"Increment stack ptr by 1 for Condition"
);
node
.
condition
.
dispatch
(
this
);
RiscVBackend
.
Register
tmpReg
=
/*borrowOneTmp*/
T6
;
betterBackend
.
emitPop
(
tmpReg
,
"GetCondition"
);
...
...
This diff is collapsed.
Click to expand it.
src/test/data/pa3/sample/stmt_return_early.py.s
0 → 100644
+
398
−
0
View file @
7cc34772
.
equiv
@
sbrk
,
9
.
equiv
@
print_string
,
4
.
equiv
@
print_char
,
11
.
equiv
@
print_int
,
1
.
equiv
@
exit2
,
17
.
equiv
@
.
__obj_size__
,
4
.
equiv
@
.
__len__
,
12
.
equiv
@
.
__int__
,
12
.
equiv
@
.
__bool__
,
12
.
equiv
@
.
__str__
,
16
.
equiv
@
.
__elts__
,
16
.
equiv
@
error_div_zero
,
2
.
equiv
@
error_arg
,
1
.
equiv
@
error_oob
,
3
.
equiv
@
error_none
,
4
.
equiv
@
error_oom
,
5
.
equiv
@
error_nyi
,
6
.
data
.
globl
$object$prototype
$object$prototype
:
.
word
0
#
Type
tag
for
class
:
object
.
word
3
#
Object
size
.
word
$object$dispatchTable
#
Pointer
to
dispatch
table
.
align
2
.
globl
$int$prototype
$int$prototype
:
.
word
1
#
Type
tag
for
class
:
int
.
word
4
#
Object
size
.
word
$int$dispatchTable
#
Pointer
to
dispatch
table
.
word
0
#
Initial
value
of
attribute
:
__int__
.
align
2
.
globl
$bool$prototype
$bool$prototype
:
.
word
2
#
Type
tag
for
class
:
bool
.
word
4
#
Object
size
.
word
$bool$dispatchTable
#
Pointer
to
dispatch
table
.
word
0
#
Initial
value
of
attribute
:
__bool__
.
align
2
.
globl
$str$prototype
$str$prototype
:
.
word
3
#
Type
tag
for
class
:
str
.
word
5
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
0
#
Initial
value
of
attribute
:
__len__
.
word
0
#
Initial
value
of
attribute
:
__str__
.
align
2
.
globl
$.
list
$prototype
$.
list
$prototype
:
.
word
-
1
#
Type
tag
for
class
:
.
list
.
word
4
#
Object
size
.
word
0
#
Pointer
to
dispatch
table
.
word
0
#
Initial
value
of
attribute
:
__len__
.
align
2
.
globl
$object$dispatchTable
$object$dispatchTable
:
.
word
$object.
__init__
#
Implementation
for
method
:
object
.
__init__
.
globl
$int$dispatchTable
$int$dispatchTable
:
.
word
$object.
__init__
#
Implementation
for
method
:
int
.
__init__
.
globl
$bool$dispatchTable
$bool$dispatchTable
:
.
word
$object.
__init__
#
Implementation
for
method
:
bool
.
__init__
.
globl
$str$dispatchTable
$str$dispatchTable
:
.
word
$object.
__init__
#
Implementation
for
method
:
str
.
__init__
.
text
.
globl
main
main
:
lui
a0
,
8192
#
Initialize
heap
size
(
in
multiples
of
4
KB
)
add
s11
,
s11
,
a0
#
Save
heap
size
jal
heap
.
init
#
Call
heap
.
init
routine
mv
gp
,
a0
#
Initialize
heap
pointer
mv
s10
,
gp
#
Set
beginning
of
heap
add
s11
,
s10
,
s11
#
Set
end
of
heap
(=
start
of
heap
+
heap
size
)
mv
ra
,
zero
#
No
normal
return
from
main
program
.
mv
fp
,
zero
#
No
preceding
frame
.
addi
sp
,
sp
,
-
8
#
Saved
FP
and
saved
RA
(
unused
at
top
level
)
.
sw
zero
,
0
(
sp
)
#
Top
saved
FP
is
0
.
sw
zero
,
4
(
sp
)
#
Top
saved
RA
is
0
.
addi
fp
,
sp
,
8
#
Set
FP
to
previous
SP
.
addi
sp
,
sp
,
-
4
#
Increment
stack
ptr
by
1
jal
$f
#
Invoke
function
lw
t0
,
0
(
sp
)
#
Load
param
for
boxing
la
a0
,
$int$prototype
#
Load
prototype
address
addi
sp
,
sp
,
-
4
#
Decrement
stack
ptr
1
sw
t0
,
0
(
sp
)
#
Store
the
literal
value
jal
alloc
#
Allocate
int
lw
t0
,
0
(
sp
)
#
Load
literal
value
again
addi
sp
,
sp
,
4
#
Increment
stack
ptr
1
sw
t0
,
12
(
a0
)
#
Set
__int__
value
sw
a0
,
0
(
sp
)
#
put
boxed
argument
back
on
stack
jal
$print
#
Invoke
function
addi
sp
,
sp
,
4
#
Decrement
stack
ptr
by
1
li
a0
,
10
#
Code
for
ecall
:
exit
ecall
.
globl
$object.
__init__
$object.
__init__
:
#
Init
method
for
type
object
.
mv
a0
,
zero
#
`
None
`
constant
jr
ra
#
Return
.
globl
$print
$print
:
#
Function
print
lw
a0
,
0
(
sp
)
#
Load
arg
beq
a0
,
zero
,
print_6
#
None
is
an
illegal
argument
lw
t0
,
0
(
a0
)
#
Get
type
tag
of
arg
li
t1
,
1
#
Load
type
tag
of
`
int
`
beq
t0
,
t1
,
print_7
#
Go
to
print
(
int
)
li
t1
,
3
#
Load
type
tag
of
`
str
`
beq
t0
,
t1
,
print_8
#
Go
to
print
(
str
)
li
t1
,
2
#
Load
type
tag
of
`
bool
`
beq
t0
,
t1
,
print_9
#
Go
to
print
(
bool
)
print_6
:
#
Invalid
argument
li
a0
,
1
#
Exit
code
for
:
Invalid
argument
la
a1
,
const_2
#
Load
error
message
as
str
addi
a1
,
a1
,
@
.
__str__
#
Load
address
of
attribute
__str__
j
abort
#
Abort
#
Printing
bools
print_9
:
#
Print
bool
object
in
A0
lw
a0
,
@
.
__bool__
(
a0
)
#
Load
attribute
__bool__
beq
a0
,
zero
,
print_10
#
Go
to
:
print
(
False
)
la
a0
,
const_3
#
String
representation
:
True
j
print_8
#
Go
to
:
print
(
str
)
print_10
:
#
Print
False
object
in
A0
la
a0
,
const_4
#
String
representation
:
False
j
print_8
#
Go
to
:
print
(
str
)
#
Printing
strs
.
print_8
:
#
Print
str
object
in
A0
addi
a1
,
a0
,
@
.
__str__
#
Load
address
of
attribute
__str__
j
print_11
#
Print
the
null
-
terminated
string
is
now
in
A1
mv
a0
,
zero
#
Load
None
j
print_5
#
Go
to
return
print_11
:
#
Print
null
-
terminated
string
in
A1
li
a0
,
@
print_string
#
Code
for
ecall
:
print_string
ecall
#
Print
string
li
a1
,
10
#
Load
newline
character
li
a0
,
@
print_char
#
Code
for
ecall
:
print_char
ecall
#
Print
character
j
print_5
#
Go
to
return
#
Printing
ints
.
print_7
:
#
Print
int
object
in
A0
lw
a1
,
@
.
__int__
(
a0
)
#
Load
attribute
__int__
li
a0
,
@
print_int
#
Code
for
ecall
:
print_int
ecall
#
Print
integer
li
a1
,
10
#
Load
newline
character
li
a0
,
11
#
Code
for
ecall
:
print_char
ecall
#
Print
character
print_5
:
#
End
of
function
mv
a0
,
zero
#
Load
None
jr
ra
#
Return
to
caller
.
globl
$len
$len
:
#
Function
len
#
We
do
not
save
/
restore
fp
/
ra
for
this
function
#
because
we
know
that
it
does
not
use
the
stack
or
does
not
#
call
other
functions
.
lw
a0
,
0
(
sp
)
#
Load
arg
beq
a0
,
zero
,
len_12
#
None
is
an
illegal
argument
lw
t0
,
0
(
a0
)
#
Get
type
tag
of
arg
li
t1
,
3
#
Load
type
tag
of
`
str
`
beq
t0
,
t1
,
len_13
#
Go
to
len
(
str
)
li
t1
,
-
1
#
Load
type
tag
for
list
objects
beq
t0
,
t1
,
len_13
#
Go
to
len
(
list
)
len_12
:
#
Invalid
argument
li
a0
,
@
error_arg
#
Exit
code
for
:
Invalid
argument
la
a1
,
const_2
#
Load
error
message
as
str
addi
a1
,
a1
,
@
.
__str__
#
Load
address
of
attribute
__str__
j
abort
#
Abort
len_13
:
#
Get
length
of
string
lw
a0
,
@
.
__len__
(
a0
)
#
Load
attribute
:
__len__
jr
ra
#
Return
to
caller
.
globl
$input
$input
:
#
Function
input
li
a0
,
@
error_nyi
#
Exit
code
for
:
Unsupported
operation
la
a1
,
const_5
#
Load
error
message
as
str
addi
a1
,
a1
,
@
.
__str__
#
Load
address
of
attribute
__str__
j
abort
#
Abort
.
globl
$f
$f
:
sw
fp
,
0
(
sp
)
#
Save
old
FP
sw
ra
,
-
4
(
sp
)
#
Save
RA
addi
sp
,
sp
,
-
8
#
Increment
stack
pointer
2
places
addi
fp
,
sp
,
4
#
FP
is
one
slot
below
top
of
stack
$f$while427.
begin
:
#
WhileStmt
:
Begin
li
a0
,
1
#
Load
boolean
literal
into
a0
sw
a0
,
0
(
sp
)
#
Push
on
stack
lw
t6
,
0
(
sp
)
#
GetCondition
addi
sp
,
sp
,
4
#
GetCondition
beq
zero
,
t6
,
$f$while427.
exit
#
WhileSTmt
,
IfFalse
,
exit
li
a0
,
1
#
Load
integer
literal
into
a0
sw
a0
,
0
(
sp
)
#
Push
on
stack
lw
a0
,
0
(
sp
)
#
Load
return
value
into
A0
j
label_1
#
Jump
to
epilogue
j
$f$while427.
begin
#
WhileStmt
:
GOTO
begin
$f$while427.
exit
:
#
WhileStmt
:
End
li
a0
,
0
#
Load
integer
literal
into
a0
sw
a0
,
0
(
sp
)
#
Push
on
stack
lw
a0
,
0
(
sp
)
#
Load
return
value
into
A0
j
label_1
#
Jump
to
epilogue
mv
a0
,
zero
#
Returning
None
implicitly
label_1
:
#
Epilogue
lw
ra
,
0
(
fp
)
#
Restore
RA
lw
fp
,
4
(
fp
)
#
Restore
old
FP
jr
ra
#
Return
to
caller
.
globl
alloc
alloc
:
#
Runtime
support
function
alloc
.
#
Prototype
address
is
in
a0
.
lw
a1
,
4
(
a0
)
#
Get
size
of
object
in
words
j
alloc2
#
Allocate
object
with
exact
size
.
globl
alloc2
alloc2
:
#
Runtime
support
function
alloc2
(
realloc
)
.
#
Prototype
address
is
in
a0
.
#
Number
of
words
to
allocate
is
in
a1
.
li
a2
,
4
#
Word
size
in
bytes
mul
a2
,
a1
,
a2
#
Calculate
number
of
bytes
to
allocate
add
a2
,
gp
,
a2
#
Estimate
where
GP
will
move
bgeu
a2
,
s11
,
alloc2_15
#
Go
to
OOM
handler
if
too
large
lw
t0
,
@
.
__obj_size__
(
a0
)
#
Get
size
of
object
in
words
mv
t2
,
a0
#
Initialize
src
ptr
mv
t3
,
gp
#
Initialize
dest
ptr
alloc2_16
:
#
Copy
-
loop
header
lw
t1
,
0
(
t2
)
#
Load
next
word
from
src
sw
t1
,
0
(
t3
)
#
Store
next
word
to
dest
addi
t2
,
t2
,
4
#
Increment
src
addi
t3
,
t3
,
4
#
Increment
dest
addi
t0
,
t0
,
-
1
#
Decrement
counter
bne
t0
,
zero
,
alloc2_16
#
Loop
if
more
words
left
to
copy
mv
a0
,
gp
#
Save
new
object
's address to return
sw
a1
,
@
.
__obj_size__
(
a0
)
#
Set
size
of
new
object
in
words
#
(
same
as
requested
size
)
mv
gp
,
a2
#
Set
next
free
slot
in
the
heap
jr
ra
#
Return
to
caller
alloc2_15
:
#
OOM
handler
li
a0
,
@
error_oom
#
Exit
code
for
:
Out
of
memory
la
a1
,
const_6
#
Load
error
message
as
str
addi
a1
,
a1
,
@
.
__str__
#
Load
address
of
attribute
__str__
j
abort
#
Abort
.
globl
abort
abort
:
#
Runtime
support
function
abort
(
does
not
return
)
.
mv
t0
,
a0
#
Save
exit
code
in
temp
li
a0
,
@
print_string
#
Code
for
print_string
ecall
ecall
#
Print
error
message
in
a1
li
a1
,
10
#
Load
newline
character
li
a0
,
@
print_char
#
Code
for
print_char
ecall
ecall
#
Print
newline
mv
a1
,
t0
#
Move
exit
code
to
a1
li
a0
,
@
exit2
#
Code
for
exit2
ecall
ecall
#
Exit
with
code
abort_17
:
#
Infinite
loop
j
abort_17
#
Prevent
fallthrough
.
globl
heap.init
heap
.
init
:
#
Runtime
support
function
heap
.
init
.
mv
a1
,
a0
#
Move
requested
size
to
A1
li
a0
,
@
sbrk
#
Code
for
ecall
:
sbrk
ecall
#
Request
A1
bytes
jr
ra
#
Return
to
caller
.
globl
error.
None
error
.
None
:
li
a0
,
4
#
Exit
code
for
:
Operation
on
None
la
a1
,
const_7
#
Load
error
message
as
str
addi
a1
,
a1
,
16
#
Load
address
of
attribute
__str__
j
abort
#
Abort
.
globl
error.
Div
error
.
Div
:
li
a0
,
4
#
Exit
code
for
:
Divison
by
zero
la
a1
,
const_8
#
Load
error
message
as
str
addi
a1
,
a1
,
16
#
Load
address
of
attribute
__str__
j
abort
#
Abort
.
globl
error.OOB
error
.
OOB
:
li
a0
,
4
#
Exit
code
for
:
Index
out
of
bounds
la
a1
,
const_9
#
Load
error
message
as
str
addi
a1
,
a1
,
16
#
Load
address
of
attribute
__str__
j
abort
#
Abort
.
data
.
globl
const_0
const_0
:
.
word
2
#
Type
tag
for
class
:
bool
.
word
4
#
Object
size
.
word
$bool$dispatchTable
#
Pointer
to
dispatch
table
.
word
0
#
Constant
value
of
attribute
:
__bool__
.
align
2
.
globl
const_1
const_1
:
.
word
2
#
Type
tag
for
class
:
bool
.
word
4
#
Object
size
.
word
$bool$dispatchTable
#
Pointer
to
dispatch
table
.
word
1
#
Constant
value
of
attribute
:
__bool__
.
align
2
.
globl
const_6
const_6
:
.
word
3
#
Type
tag
for
class
:
str
.
word
8
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
13
#
Constant
value
of
attribute
:
__len__
.
string
"Out of memory"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_9
const_9
:
.
word
3
#
Type
tag
for
class
:
str
.
word
9
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
19
#
Constant
value
of
attribute
:
__len__
.
string
"Index out of bounds"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_8
const_8
:
.
word
3
#
Type
tag
for
class
:
str
.
word
8
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
15
#
Constant
value
of
attribute
:
__len__
.
string
"Divison by zero"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_3
const_3
:
.
word
3
#
Type
tag
for
class
:
str
.
word
6
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
4
#
Constant
value
of
attribute
:
__len__
.
string
"True"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_7
const_7
:
.
word
3
#
Type
tag
for
class
:
str
.
word
9
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
17
#
Constant
value
of
attribute
:
__len__
.
string
"Operation on None"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_2
const_2
:
.
word
3
#
Type
tag
for
class
:
str
.
word
9
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
16
#
Constant
value
of
attribute
:
__len__
.
string
"Invalid argument"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_5
const_5
:
.
word
3
#
Type
tag
for
class
:
str
.
word
10
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
21
#
Constant
value
of
attribute
:
__len__
.
string
"Unsupported operation"
#
Constant
value
of
attribute
:
__str__
.
align
2
.
globl
const_4
const_4
:
.
word
3
#
Type
tag
for
class
:
str
.
word
6
#
Object
size
.
word
$str$dispatchTable
#
Pointer
to
dispatch
table
.
word
5
#
Constant
value
of
attribute
:
__len__
.
string
"False"
#
Constant
value
of
attribute
:
__str__
.
align
2
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