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kickc/src/test/ref/sqr-delta.log

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CONTROL FLOW GRAPH SSA
@begin: scope:[] from
to:@1
(dword()) ifunc((dword) ifunc::a)
ifunc: scope:[ifunc] from main
(dword) ifunc::a#2 ← phi( main/(dword) ifunc::a#0 )
(dword) ifunc::x#0 ← (dword) 1
(dword) ifunc::xsqr#0 ← (dword) 1
(dword) ifunc::delta#0 ← (dword) 3
to:ifunc::@1
ifunc::@1: scope:[ifunc] from ifunc ifunc::@2
(dword) ifunc::delta#3 ← phi( ifunc/(dword) ifunc::delta#0 ifunc::@2/(dword) ifunc::delta#1 )
(dword) ifunc::x#5 ← phi( ifunc/(dword) ifunc::x#0 ifunc::@2/(dword) ifunc::x#1 )
(dword) ifunc::a#1 ← phi( ifunc/(dword) ifunc::a#2 ifunc::@2/(dword) ifunc::a#3 )
(dword) ifunc::xsqr#2 ← phi( ifunc/(dword) ifunc::xsqr#0 ifunc::@2/(dword) ifunc::xsqr#1 )
(bool~) ifunc::$0 ← (dword) ifunc::xsqr#2 <= (dword) ifunc::a#1
if((bool~) ifunc::$0) goto ifunc::@2
to:ifunc::@3
ifunc::@2: scope:[ifunc] from ifunc::@1
(dword) ifunc::a#3 ← phi( ifunc::@1/(dword) ifunc::a#1 )
(dword) ifunc::delta#2 ← phi( ifunc::@1/(dword) ifunc::delta#3 )
(dword) ifunc::xsqr#3 ← phi( ifunc::@1/(dword) ifunc::xsqr#2 )
(dword) ifunc::x#3 ← phi( ifunc::@1/(dword) ifunc::x#5 )
(dword) ifunc::x#1 ← ++ (dword) ifunc::x#3
(dword) ifunc::xsqr#1 ← (dword) ifunc::xsqr#3 + (dword) ifunc::delta#2
(dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (number) 2
to:ifunc::@1
ifunc::@3: scope:[ifunc] from ifunc::@1
(dword) ifunc::x#4 ← phi( ifunc::@1/(dword) ifunc::x#5 )
(dword) ifunc::x#2 ← -- (dword) ifunc::x#4
(dword) ifunc::return#0 ← (dword) ifunc::x#2
to:ifunc::@return
ifunc::@return: scope:[ifunc] from ifunc::@3
(dword) ifunc::return#3 ← phi( ifunc::@3/(dword) ifunc::return#0 )
(dword) ifunc::return#1 ← (dword) ifunc::return#3
return
to:@return
(void()) main()
main: scope:[main] from @1
(dword) ifunc::a#0 ← (number) 8
call ifunc
(dword) ifunc::return#2 ← (dword) ifunc::return#1
to:main::@1
main::@1: scope:[main] from main
(dword) ifunc::return#4 ← phi( main/(dword) ifunc::return#2 )
(dword~) main::$0 ← (dword) ifunc::return#4
(number~) main::$1 ← (number) 0 * (const byte) SIZEOF_DWORD
*((const dword*) SCREEN + (number~) main::$1) ← (dword~) main::$0
to:main::@return
main::@return: scope:[main] from main::@1
return
to:@return
@1: scope:[] from @begin
call main
to:@2
@2: scope:[] from @1
to:@end
@end: scope:[] from @2
SYMBOL TABLE SSA
(label) @1
(label) @2
(label) @begin
(label) @end
(const dword*) SCREEN = (dword*)(number) $400
(const byte) SIZEOF_DWORD = (byte) 4
(dword()) ifunc((dword) ifunc::a)
(bool~) ifunc::$0
(label) ifunc::@1
(label) ifunc::@2
(label) ifunc::@3
(label) ifunc::@return
(dword) ifunc::a
(dword) ifunc::a#0
(dword) ifunc::a#1
(dword) ifunc::a#2
(dword) ifunc::a#3
(dword) ifunc::delta
(dword) ifunc::delta#0
(dword) ifunc::delta#1
(dword) ifunc::delta#2
(dword) ifunc::delta#3
(dword) ifunc::return
(dword) ifunc::return#0
(dword) ifunc::return#1
(dword) ifunc::return#2
(dword) ifunc::return#3
(dword) ifunc::return#4
(dword) ifunc::x
(dword) ifunc::x#0
(dword) ifunc::x#1
(dword) ifunc::x#2
(dword) ifunc::x#3
(dword) ifunc::x#4
(dword) ifunc::x#5
(dword) ifunc::xsqr
(dword) ifunc::xsqr#0
(dword) ifunc::xsqr#1
(dword) ifunc::xsqr#2
(dword) ifunc::xsqr#3
(void()) main()
(dword~) main::$0
(number~) main::$1
(label) main::@1
(label) main::@return
Adding number conversion cast (unumber) 2 in (dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (number) 2
Adding number conversion cast (unumber) 8 in (dword) ifunc::a#0 ← (number) 8
Adding number conversion cast (unumber) 0 in (number~) main::$1 ← (number) 0 * (const byte) SIZEOF_DWORD
Adding number conversion cast (unumber) main::$1 in (number~) main::$1 ← (unumber)(number) 0 * (const byte) SIZEOF_DWORD
Successful SSA optimization PassNAddNumberTypeConversions
Inlining cast (dword) ifunc::a#0 ← (unumber)(number) 8
Successful SSA optimization Pass2InlineCast
Simplifying constant pointer cast (dword*) 1024
Simplifying constant integer cast 2
Simplifying constant integer cast 8
Simplifying constant integer cast 0
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 2
Finalized unsigned number type (byte) 8
Finalized unsigned number type (byte) 0
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to byte in (unumber~) main::$1 ← (byte) 0 * (const byte) SIZEOF_DWORD
Alias ifunc::x#3 = ifunc::x#5 ifunc::x#4
Alias ifunc::xsqr#2 = ifunc::xsqr#3
Alias ifunc::delta#2 = ifunc::delta#3
Alias ifunc::a#1 = ifunc::a#3
Alias ifunc::return#0 = ifunc::x#2 ifunc::return#3 ifunc::return#1
Alias ifunc::return#2 = ifunc::return#4
Successful SSA optimization Pass2AliasElimination
Identical Phi Values (dword) ifunc::a#2 (dword) ifunc::a#0
Identical Phi Values (dword) ifunc::a#1 (dword) ifunc::a#2
Successful SSA optimization Pass2IdenticalPhiElimination
Simple Condition (bool~) ifunc::$0 [6] if((dword) ifunc::xsqr#2<=(dword) ifunc::a#0) goto ifunc::@2
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant right-side identified [16] (byte~) main::$1 ← (byte) 0 * (const byte) SIZEOF_DWORD
Successful SSA optimization Pass2ConstantRValueConsolidation
Constant (const dword) ifunc::x#0 = 1
Constant (const dword) ifunc::xsqr#0 = 1
Constant (const dword) ifunc::delta#0 = 3
Constant (const dword) ifunc::a#0 = 8
Constant (const byte) main::$1 = 0*SIZEOF_DWORD
Successful SSA optimization Pass2ConstantIdentification
Rewriting conditional comparison [6] if((dword) ifunc::xsqr#2<=(const dword) ifunc::a#0) goto ifunc::@2
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_DWORD in
Successful SSA optimization PassNSimplifyConstantZero
Simplifying expression containing zero SCREEN in [17] *((const dword*) SCREEN + (const byte) main::$1) ← (dword~) main::$0
Successful SSA optimization PassNSimplifyExpressionWithZero
Eliminating unused constant (const byte) main::$1
Eliminating unused constant (const byte) SIZEOF_DWORD
Successful SSA optimization PassNEliminateUnusedVars
Adding number conversion cast (unumber) ifunc::a#0+1 in if((dword) ifunc::xsqr#2<(const dword) ifunc::a#0+(number) 1) goto ifunc::@2
Adding number conversion cast (unumber) 1 in if((dword) ifunc::xsqr#2<(unumber)(const dword) ifunc::a#0+(number) 1) goto ifunc::@2
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant integer cast (const dword) ifunc::a#0+(unumber)(number) 1
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inlining constant with var siblings (const dword) ifunc::x#0
Inlining constant with var siblings (const dword) ifunc::xsqr#0
Inlining constant with var siblings (const dword) ifunc::delta#0
Constant inlined ifunc::xsqr#0 = (dword) 1
Constant inlined ifunc::delta#0 = (dword) 3
Constant inlined ifunc::x#0 = (dword) 1
Successful SSA optimization Pass2ConstantInlining
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @2
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of ifunc
CALL GRAPH
Calls in [] to main:2
Calls in [main] to ifunc:6
Created 3 initial phi equivalence classes
Coalesced [19] ifunc::xsqr#4 ← ifunc::xsqr#1
Coalesced [20] ifunc::x#6 ← ifunc::x#1
Coalesced [21] ifunc::delta#4 ← ifunc::delta#1
Coalesced down to 3 phi equivalence classes
Culled Empty Block (label) @2
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
Adding NOP phi() at start of ifunc
FINAL CONTROL FLOW GRAPH
@begin: scope:[] from
[0] phi()
to:@1
@1: scope:[] from @begin
[1] phi()
[2] call main
to:@end
@end: scope:[] from @1
[3] phi()
(void()) main()
main: scope:[main] from @1
[4] phi()
[5] call ifunc
[6] (dword) ifunc::return#2 ← (dword) ifunc::return#0
to:main::@1
main::@1: scope:[main] from main
[7] (dword~) main::$0 ← (dword) ifunc::return#2
[8] *((const dword*) SCREEN) ← (dword~) main::$0
to:main::@return
main::@return: scope:[main] from main::@1
[9] return
to:@return
(dword()) ifunc((dword) ifunc::a)
ifunc: scope:[ifunc] from main
[10] phi()
to:ifunc::@1
ifunc::@1: scope:[ifunc] from ifunc ifunc::@2
[11] (dword) ifunc::delta#2 ← phi( ifunc/(dword) 3 ifunc::@2/(dword) ifunc::delta#1 )
[11] (dword) ifunc::x#3 ← phi( ifunc/(dword) 1 ifunc::@2/(dword) ifunc::x#1 )
[11] (dword) ifunc::xsqr#2 ← phi( ifunc/(dword) 1 ifunc::@2/(dword) ifunc::xsqr#1 )
[12] if((dword) ifunc::xsqr#2<(const dword) ifunc::a#0+(byte) 1) goto ifunc::@2
to:ifunc::@3
ifunc::@3: scope:[ifunc] from ifunc::@1
[13] (dword) ifunc::return#0 ← -- (dword) ifunc::x#3
to:ifunc::@return
ifunc::@return: scope:[ifunc] from ifunc::@3
[14] return
to:@return
ifunc::@2: scope:[ifunc] from ifunc::@1
[15] (dword) ifunc::x#1 ← ++ (dword) ifunc::x#3
[16] (dword) ifunc::xsqr#1 ← (dword) ifunc::xsqr#2 + (dword) ifunc::delta#2
[17] (dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (byte) 2
to:ifunc::@1
VARIABLE REGISTER WEIGHTS
(dword()) ifunc((dword) ifunc::a)
(dword) ifunc::a
(dword) ifunc::delta
(dword) ifunc::delta#1 2002.0
(dword) ifunc::delta#2 750.75
(dword) ifunc::return
(dword) ifunc::return#0 37.33333333333333
(dword) ifunc::return#2 22.0
(dword) ifunc::x
(dword) ifunc::x#1 667.3333333333334
(dword) ifunc::x#3 1051.5
(dword) ifunc::xsqr
(dword) ifunc::xsqr#1 1001.0
(dword) ifunc::xsqr#2 1001.0
(void()) main()
(dword~) main::$0 22.0
Initial phi equivalence classes
[ ifunc::xsqr#2 ifunc::xsqr#1 ]
[ ifunc::x#3 ifunc::x#1 ]
[ ifunc::delta#2 ifunc::delta#1 ]
Added variable ifunc::return#2 to live range equivalence class [ ifunc::return#2 ]
Added variable main::$0 to live range equivalence class [ main::$0 ]
Added variable ifunc::return#0 to live range equivalence class [ ifunc::return#0 ]
Complete equivalence classes
[ ifunc::xsqr#2 ifunc::xsqr#1 ]
[ ifunc::x#3 ifunc::x#1 ]
[ ifunc::delta#2 ifunc::delta#1 ]
[ ifunc::return#2 ]
[ main::$0 ]
[ ifunc::return#0 ]
Allocated zp[4]:2 [ ifunc::xsqr#2 ifunc::xsqr#1 ]
Allocated zp[4]:6 [ ifunc::x#3 ifunc::x#1 ]
Allocated zp[4]:10 [ ifunc::delta#2 ifunc::delta#1 ]
Allocated zp[4]:14 [ ifunc::return#2 ]
Allocated zp[4]:18 [ main::$0 ]
Allocated zp[4]:22 [ ifunc::return#0 ]
INITIAL ASM
Target platform is c64basic / MOS6502X
// File Comments
// Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
// Global Constants & labels
.label SCREEN = $400
// @begin
__bbegin:
// [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
jmp __b1
// @1
__b1:
// [2] call main
// [4] phi from @1 to main [phi:@1->main]
main_from___b1:
jsr main
// [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
jmp __bend
// @end
__bend:
// main
main: {
.label __0 = $12
// [5] call ifunc
// [10] phi from main to ifunc [phi:main->ifunc]
ifunc_from_main:
jsr ifunc
// [6] (dword) ifunc::return#2 ← (dword) ifunc::return#0 -- vduz1=vduz2
lda.z ifunc.return
sta.z ifunc.return_1
lda.z ifunc.return+1
sta.z ifunc.return_1+1
lda.z ifunc.return+2
sta.z ifunc.return_1+2
lda.z ifunc.return+3
sta.z ifunc.return_1+3
jmp __b1
// main::@1
__b1:
// [7] (dword~) main::$0 ← (dword) ifunc::return#2 -- vduz1=vduz2
lda.z ifunc.return_1
sta.z __0
lda.z ifunc.return_1+1
sta.z __0+1
lda.z ifunc.return_1+2
sta.z __0+2
lda.z ifunc.return_1+3
sta.z __0+3
// [8] *((const dword*) SCREEN) ← (dword~) main::$0 -- _deref_pduc1=vduz1
lda.z __0
sta SCREEN
lda.z __0+1
sta SCREEN+1
lda.z __0+2
sta SCREEN+2
lda.z __0+3
sta SCREEN+3
jmp __breturn
// main::@return
__breturn:
// [9] return
rts
}
// ifunc
ifunc: {
.const a = 8
.label x = 6
.label xsqr = 2
.label delta = $a
.label return = $16
.label return_1 = $e
// [11] phi from ifunc to ifunc::@1 [phi:ifunc->ifunc::@1]
__b1_from_ifunc:
// [11] phi (dword) ifunc::delta#2 = (dword) 3 [phi:ifunc->ifunc::@1#0] -- vduz1=vduc1
lda #<3
sta.z delta
lda #>3
sta.z delta+1
lda #<3>>$10
sta.z delta+2
lda #>3>>$10
sta.z delta+3
// [11] phi (dword) ifunc::x#3 = (dword) 1 [phi:ifunc->ifunc::@1#1] -- vduz1=vduc1
lda #<1
sta.z x
lda #>1
sta.z x+1
lda #<1>>$10
sta.z x+2
lda #>1>>$10
sta.z x+3
// [11] phi (dword) ifunc::xsqr#2 = (dword) 1 [phi:ifunc->ifunc::@1#2] -- vduz1=vduc1
lda #<1
sta.z xsqr
lda #>1
sta.z xsqr+1
lda #<1>>$10
sta.z xsqr+2
lda #>1>>$10
sta.z xsqr+3
jmp __b1
// ifunc::@1
__b1:
// [12] if((dword) ifunc::xsqr#2<(const dword) ifunc::a#0+(byte) 1) goto ifunc::@2 -- vduz1_lt_vduc1_then_la1
lda.z xsqr+3
cmp #>a+1>>$10
bcc __b2
bne !+
lda.z xsqr+2
cmp #<a+1>>$10
bcc __b2
bne !+
lda.z xsqr+1
cmp #>a+1
bcc __b2
bne !+
lda.z xsqr
cmp #<a+1
bcc __b2
!:
jmp __b3
// ifunc::@3
__b3:
// [13] (dword) ifunc::return#0 ← -- (dword) ifunc::x#3 -- vduz1=_dec_vduz2
lda.z x
sec
sbc #1
sta.z return
lda.z x+1
sbc #0
sta.z return+1
lda.z x+2
sbc #0
sta.z return+2
lda.z x+3
sbc #0
sta.z return+3
jmp __breturn
// ifunc::@return
__breturn:
// [14] return
rts
// ifunc::@2
__b2:
// [15] (dword) ifunc::x#1 ← ++ (dword) ifunc::x#3 -- vduz1=_inc_vduz1
inc.z x
bne !+
inc.z x+1
bne !+
inc.z x+2
bne !+
inc.z x+3
!:
// [16] (dword) ifunc::xsqr#1 ← (dword) ifunc::xsqr#2 + (dword) ifunc::delta#2 -- vduz1=vduz1_plus_vduz2
lda.z xsqr
clc
adc.z delta
sta.z xsqr
lda.z xsqr+1
adc.z delta+1
sta.z xsqr+1
lda.z xsqr+2
adc.z delta+2
sta.z xsqr+2
lda.z xsqr+3
adc.z delta+3
sta.z xsqr+3
// [17] (dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (byte) 2 -- vduz1=vduz1_plus_vbuc1
lda.z delta
clc
adc #2
sta.z delta
bcc !+
inc.z delta+1
bne !+
inc.z delta+2
bne !+
inc.z delta+3
!:
// [11] phi from ifunc::@2 to ifunc::@1 [phi:ifunc::@2->ifunc::@1]
__b1_from___b2:
// [11] phi (dword) ifunc::delta#2 = (dword) ifunc::delta#1 [phi:ifunc::@2->ifunc::@1#0] -- register_copy
// [11] phi (dword) ifunc::x#3 = (dword) ifunc::x#1 [phi:ifunc::@2->ifunc::@1#1] -- register_copy
// [11] phi (dword) ifunc::xsqr#2 = (dword) ifunc::xsqr#1 [phi:ifunc::@2->ifunc::@1#2] -- register_copy
jmp __b1
}
// File Data
REGISTER UPLIFT POTENTIAL REGISTERS
Statement [6] (dword) ifunc::return#2 ← (dword) ifunc::return#0 [ ifunc::return#2 ] ( main:2 [ ifunc::return#2 ] { { ifunc::return#0 = ifunc::return#2 } } ) always clobbers reg byte a
Statement [7] (dword~) main::$0 ← (dword) ifunc::return#2 [ main::$0 ] ( main:2 [ main::$0 ] { } ) always clobbers reg byte a
Statement [8] *((const dword*) SCREEN) ← (dword~) main::$0 [ ] ( main:2 [ ] { } ) always clobbers reg byte a
Statement [12] if((dword) ifunc::xsqr#2<(const dword) ifunc::a#0+(byte) 1) goto ifunc::@2 [ ifunc::xsqr#2 ifunc::x#3 ifunc::delta#2 ] ( main:2::ifunc:5 [ ifunc::xsqr#2 ifunc::x#3 ifunc::delta#2 ] { { ifunc::return#0 = ifunc::return#2 } } ) always clobbers reg byte a
Statement [13] (dword) ifunc::return#0 ← -- (dword) ifunc::x#3 [ ifunc::return#0 ] ( main:2::ifunc:5 [ ifunc::return#0 ] { { ifunc::return#0 = ifunc::return#2 } } ) always clobbers reg byte a
Statement [16] (dword) ifunc::xsqr#1 ← (dword) ifunc::xsqr#2 + (dword) ifunc::delta#2 [ ifunc::delta#2 ifunc::xsqr#1 ifunc::x#1 ] ( main:2::ifunc:5 [ ifunc::delta#2 ifunc::xsqr#1 ifunc::x#1 ] { { ifunc::return#0 = ifunc::return#2 } } ) always clobbers reg byte a
Statement [17] (dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (byte) 2 [ ifunc::xsqr#1 ifunc::x#1 ifunc::delta#1 ] ( main:2::ifunc:5 [ ifunc::xsqr#1 ifunc::x#1 ifunc::delta#1 ] { { ifunc::return#0 = ifunc::return#2 } } ) always clobbers reg byte a
Potential registers zp[4]:2 [ ifunc::xsqr#2 ifunc::xsqr#1 ] : zp[4]:2 ,
Potential registers zp[4]:6 [ ifunc::x#3 ifunc::x#1 ] : zp[4]:6 ,
Potential registers zp[4]:10 [ ifunc::delta#2 ifunc::delta#1 ] : zp[4]:10 ,
Potential registers zp[4]:14 [ ifunc::return#2 ] : zp[4]:14 ,
Potential registers zp[4]:18 [ main::$0 ] : zp[4]:18 ,
Potential registers zp[4]:22 [ ifunc::return#0 ] : zp[4]:22 ,
REGISTER UPLIFT SCOPES
Uplift Scope [ifunc] 2,752.75: zp[4]:10 [ ifunc::delta#2 ifunc::delta#1 ] 2,002: zp[4]:2 [ ifunc::xsqr#2 ifunc::xsqr#1 ] 1,718.83: zp[4]:6 [ ifunc::x#3 ifunc::x#1 ] 37.33: zp[4]:22 [ ifunc::return#0 ] 22: zp[4]:14 [ ifunc::return#2 ]
Uplift Scope [main] 22: zp[4]:18 [ main::$0 ]
Uplift Scope []
Uplifting [ifunc] best 2194 combination zp[4]:10 [ ifunc::delta#2 ifunc::delta#1 ] zp[4]:2 [ ifunc::xsqr#2 ifunc::xsqr#1 ] zp[4]:6 [ ifunc::x#3 ifunc::x#1 ] zp[4]:22 [ ifunc::return#0 ] zp[4]:14 [ ifunc::return#2 ]
Uplifting [main] best 2194 combination zp[4]:18 [ main::$0 ]
Uplifting [] best 2194 combination
Coalescing zero page register [ zp[4]:6 [ ifunc::x#3 ifunc::x#1 ] ] with [ zp[4]:22 [ ifunc::return#0 ] ] - score: 1
Coalescing zero page register [ zp[4]:14 [ ifunc::return#2 ] ] with [ zp[4]:18 [ main::$0 ] ] - score: 1
Coalescing zero page register [ zp[4]:6 [ ifunc::x#3 ifunc::x#1 ifunc::return#0 ] ] with [ zp[4]:14 [ ifunc::return#2 main::$0 ] ] - score: 1
ASSEMBLER BEFORE OPTIMIZATION
// File Comments
// Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
// Global Constants & labels
.label SCREEN = $400
// @begin
__bbegin:
// [1] phi from @begin to @1 [phi:@begin->@1]
__b1_from___bbegin:
jmp __b1
// @1
__b1:
// [2] call main
// [4] phi from @1 to main [phi:@1->main]
main_from___b1:
jsr main
// [3] phi from @1 to @end [phi:@1->@end]
__bend_from___b1:
jmp __bend
// @end
__bend:
// main
main: {
.label __0 = 6
// [5] call ifunc
// [10] phi from main to ifunc [phi:main->ifunc]
ifunc_from_main:
jsr ifunc
// [6] (dword) ifunc::return#2 ← (dword) ifunc::return#0
jmp __b1
// main::@1
__b1:
// [7] (dword~) main::$0 ← (dword) ifunc::return#2
// [8] *((const dword*) SCREEN) ← (dword~) main::$0 -- _deref_pduc1=vduz1
lda.z __0
sta SCREEN
lda.z __0+1
sta SCREEN+1
lda.z __0+2
sta SCREEN+2
lda.z __0+3
sta SCREEN+3
jmp __breturn
// main::@return
__breturn:
// [9] return
rts
}
// ifunc
ifunc: {
.const a = 8
.label x = 6
.label xsqr = 2
.label delta = $a
.label return = 6
// [11] phi from ifunc to ifunc::@1 [phi:ifunc->ifunc::@1]
__b1_from_ifunc:
// [11] phi (dword) ifunc::delta#2 = (dword) 3 [phi:ifunc->ifunc::@1#0] -- vduz1=vduc1
lda #<3
sta.z delta
lda #>3
sta.z delta+1
lda #<3>>$10
sta.z delta+2
lda #>3>>$10
sta.z delta+3
// [11] phi (dword) ifunc::x#3 = (dword) 1 [phi:ifunc->ifunc::@1#1] -- vduz1=vduc1
lda #<1
sta.z x
lda #>1
sta.z x+1
lda #<1>>$10
sta.z x+2
lda #>1>>$10
sta.z x+3
// [11] phi (dword) ifunc::xsqr#2 = (dword) 1 [phi:ifunc->ifunc::@1#2] -- vduz1=vduc1
lda #<1
sta.z xsqr
lda #>1
sta.z xsqr+1
lda #<1>>$10
sta.z xsqr+2
lda #>1>>$10
sta.z xsqr+3
jmp __b1
// ifunc::@1
__b1:
// [12] if((dword) ifunc::xsqr#2<(const dword) ifunc::a#0+(byte) 1) goto ifunc::@2 -- vduz1_lt_vduc1_then_la1
lda.z xsqr+3
cmp #>a+1>>$10
bcc __b2
bne !+
lda.z xsqr+2
cmp #<a+1>>$10
bcc __b2
bne !+
lda.z xsqr+1
cmp #>a+1
bcc __b2
bne !+
lda.z xsqr
cmp #<a+1
bcc __b2
!:
jmp __b3
// ifunc::@3
__b3:
// [13] (dword) ifunc::return#0 ← -- (dword) ifunc::x#3 -- vduz1=_dec_vduz1
lda.z return
sec
sbc #1
sta.z return
lda.z return+1
sbc #0
sta.z return+1
lda.z return+2
sbc #0
sta.z return+2
lda.z return+3
sbc #0
sta.z return+3
jmp __breturn
// ifunc::@return
__breturn:
// [14] return
rts
// ifunc::@2
__b2:
// [15] (dword) ifunc::x#1 ← ++ (dword) ifunc::x#3 -- vduz1=_inc_vduz1
inc.z x
bne !+
inc.z x+1
bne !+
inc.z x+2
bne !+
inc.z x+3
!:
// [16] (dword) ifunc::xsqr#1 ← (dword) ifunc::xsqr#2 + (dword) ifunc::delta#2 -- vduz1=vduz1_plus_vduz2
lda.z xsqr
clc
adc.z delta
sta.z xsqr
lda.z xsqr+1
adc.z delta+1
sta.z xsqr+1
lda.z xsqr+2
adc.z delta+2
sta.z xsqr+2
lda.z xsqr+3
adc.z delta+3
sta.z xsqr+3
// [17] (dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (byte) 2 -- vduz1=vduz1_plus_vbuc1
lda.z delta
clc
adc #2
sta.z delta
bcc !+
inc.z delta+1
bne !+
inc.z delta+2
bne !+
inc.z delta+3
!:
// [11] phi from ifunc::@2 to ifunc::@1 [phi:ifunc::@2->ifunc::@1]
__b1_from___b2:
// [11] phi (dword) ifunc::delta#2 = (dword) ifunc::delta#1 [phi:ifunc::@2->ifunc::@1#0] -- register_copy
// [11] phi (dword) ifunc::x#3 = (dword) ifunc::x#1 [phi:ifunc::@2->ifunc::@1#1] -- register_copy
// [11] phi (dword) ifunc::xsqr#2 = (dword) ifunc::xsqr#1 [phi:ifunc::@2->ifunc::@1#2] -- register_copy
jmp __b1
}
// File Data
ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __b1
Removing instruction jmp __bend
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b1
Removing instruction jmp __b3
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction __b1_from___bbegin:
Removing instruction __b1:
Removing instruction main_from___b1:
Removing instruction __bend_from___b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __bbegin:
Removing instruction __bend:
Removing instruction ifunc_from_main:
Removing instruction __b1:
Removing instruction __breturn:
Removing instruction __b1_from_ifunc:
Removing instruction __b3:
Removing instruction __breturn:
Removing instruction __b1_from___b2:
Succesful ASM optimization Pass5UnusedLabelElimination
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const dword*) SCREEN = (dword*) 1024
(dword()) ifunc((dword) ifunc::a)
(label) ifunc::@1
(label) ifunc::@2
(label) ifunc::@3
(label) ifunc::@return
(dword) ifunc::a
(const dword) ifunc::a#0 a = (byte) 8
(dword) ifunc::delta
(dword) ifunc::delta#1 delta zp[4]:10 2002.0
(dword) ifunc::delta#2 delta zp[4]:10 750.75
(dword) ifunc::return
(dword) ifunc::return#0 return zp[4]:6 37.33333333333333
(dword) ifunc::return#2 return zp[4]:6 22.0
(dword) ifunc::x
(dword) ifunc::x#1 x zp[4]:6 667.3333333333334
(dword) ifunc::x#3 x zp[4]:6 1051.5
(dword) ifunc::xsqr
(dword) ifunc::xsqr#1 xsqr zp[4]:2 1001.0
(dword) ifunc::xsqr#2 xsqr zp[4]:2 1001.0
(void()) main()
(dword~) main::$0 zp[4]:6 22.0
(label) main::@1
(label) main::@return
zp[4]:2 [ ifunc::xsqr#2 ifunc::xsqr#1 ]
zp[4]:6 [ ifunc::x#3 ifunc::x#1 ifunc::return#0 ifunc::return#2 main::$0 ]
zp[4]:10 [ ifunc::delta#2 ifunc::delta#1 ]
FINAL ASSEMBLER
Score: 2065
// File Comments
// Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
// Global Constants & labels
.label SCREEN = $400
// @begin
// [1] phi from @begin to @1 [phi:@begin->@1]
// @1
// [2] call main
// [4] phi from @1 to main [phi:@1->main]
// [3] phi from @1 to @end [phi:@1->@end]
// @end
// main
main: {
.label __0 = 6
// ifunc(8)
// [5] call ifunc
// [10] phi from main to ifunc [phi:main->ifunc]
jsr ifunc
// ifunc(8)
// [6] (dword) ifunc::return#2 ← (dword) ifunc::return#0
// main::@1
// [7] (dword~) main::$0 ← (dword) ifunc::return#2
// SCREEN[0] = ifunc(8)
// [8] *((const dword*) SCREEN) ← (dword~) main::$0 -- _deref_pduc1=vduz1
lda.z __0
sta SCREEN
lda.z __0+1
sta SCREEN+1
lda.z __0+2
sta SCREEN+2
lda.z __0+3
sta SCREEN+3
// main::@return
// }
// [9] return
rts
}
// ifunc
ifunc: {
.const a = 8
.label x = 6
.label xsqr = 2
.label delta = $a
.label return = 6
// [11] phi from ifunc to ifunc::@1 [phi:ifunc->ifunc::@1]
// [11] phi (dword) ifunc::delta#2 = (dword) 3 [phi:ifunc->ifunc::@1#0] -- vduz1=vduc1
lda #<3
sta.z delta
lda #>3
sta.z delta+1
lda #<3>>$10
sta.z delta+2
lda #>3>>$10
sta.z delta+3
// [11] phi (dword) ifunc::x#3 = (dword) 1 [phi:ifunc->ifunc::@1#1] -- vduz1=vduc1
lda #<1
sta.z x
lda #>1
sta.z x+1
lda #<1>>$10
sta.z x+2
lda #>1>>$10
sta.z x+3
// [11] phi (dword) ifunc::xsqr#2 = (dword) 1 [phi:ifunc->ifunc::@1#2] -- vduz1=vduc1
lda #<1
sta.z xsqr
lda #>1
sta.z xsqr+1
lda #<1>>$10
sta.z xsqr+2
lda #>1>>$10
sta.z xsqr+3
// ifunc::@1
__b1:
// while(xsqr <=a)
// [12] if((dword) ifunc::xsqr#2<(const dword) ifunc::a#0+(byte) 1) goto ifunc::@2 -- vduz1_lt_vduc1_then_la1
lda.z xsqr+3
cmp #>a+1>>$10
bcc __b2
bne !+
lda.z xsqr+2
cmp #<a+1>>$10
bcc __b2
bne !+
lda.z xsqr+1
cmp #>a+1
bcc __b2
bne !+
lda.z xsqr
cmp #<a+1
bcc __b2
!:
// ifunc::@3
// return --x;
// [13] (dword) ifunc::return#0 ← -- (dword) ifunc::x#3 -- vduz1=_dec_vduz1
lda.z return
sec
sbc #1
sta.z return
lda.z return+1
sbc #0
sta.z return+1
lda.z return+2
sbc #0
sta.z return+2
lda.z return+3
sbc #0
sta.z return+3
// ifunc::@return
// }
// [14] return
rts
// ifunc::@2
__b2:
// ++x;
// [15] (dword) ifunc::x#1 ← ++ (dword) ifunc::x#3 -- vduz1=_inc_vduz1
inc.z x
bne !+
inc.z x+1
bne !+
inc.z x+2
bne !+
inc.z x+3
!:
// xsqr += delta
// [16] (dword) ifunc::xsqr#1 ← (dword) ifunc::xsqr#2 + (dword) ifunc::delta#2 -- vduz1=vduz1_plus_vduz2
lda.z xsqr
clc
adc.z delta
sta.z xsqr
lda.z xsqr+1
adc.z delta+1
sta.z xsqr+1
lda.z xsqr+2
adc.z delta+2
sta.z xsqr+2
lda.z xsqr+3
adc.z delta+3
sta.z xsqr+3
// delta += 2
// [17] (dword) ifunc::delta#1 ← (dword) ifunc::delta#2 + (byte) 2 -- vduz1=vduz1_plus_vbuc1
lda.z delta
clc
adc #2
sta.z delta
bcc !+
inc.z delta+1
bne !+
inc.z delta+2
bne !+
inc.z delta+3
!:
// [11] phi from ifunc::@2 to ifunc::@1 [phi:ifunc::@2->ifunc::@1]
// [11] phi (dword) ifunc::delta#2 = (dword) ifunc::delta#1 [phi:ifunc::@2->ifunc::@1#0] -- register_copy
// [11] phi (dword) ifunc::x#3 = (dword) ifunc::x#1 [phi:ifunc::@2->ifunc::@1#1] -- register_copy
// [11] phi (dword) ifunc::xsqr#2 = (dword) ifunc::xsqr#1 [phi:ifunc::@2->ifunc::@1#2] -- register_copy
jmp __b1
}
// File Data
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