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291ce871c4
kickc/src/test/ref/clobber-a-problem.log
jespergravgaard 291ce871c4 Working on far call merge.
2023-04-23 11:54:47 +02:00

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Resolved forward reference irq to __interrupt(hardware_clobber) void irq()
Inlined call call __init
CONTROL FLOW GRAPH SSA
void main()
main: scope:[main] from __start::@1
*KERNEL_IRQ = &irq
to:main::@return
main::@return: scope:[main] from main
return
to:@return
__interrupt(hardware_clobber) void irq()
irq: scope:[irq] from
*BORDER_COLOR = DARK_GREY
irq_raster_next = irq_raster_next + $15
irq::raster_next#0 = irq_raster_next
irq::$0 = irq::raster_next#0 & 7
irq::$1 = irq::$0 == 0
irq::$2 = ! irq::$1
if(irq::$2) goto irq::@1
to:irq::@2
irq::@1: scope:[irq] from irq irq::@2
irq::raster_next#2 = phi( irq/irq::raster_next#0, irq::@2/irq::raster_next#1 )
*RASTER = irq::raster_next#2
*BORDER_COLOR = BLACK
to:irq::@return
irq::@2: scope:[irq] from irq
irq::raster_next#3 = phi( irq/irq::raster_next#0 )
irq::raster_next#1 = irq::raster_next#3 - 1
to:irq::@1
irq::@return: scope:[irq] from irq::@1
return
to:@return
void __start()
__start: scope:[__start] from
to:__start::__init1
__start::__init1: scope:[__start] from __start
irq_raster_next = 0
to:__start::@1
__start::@1: scope:[__start] from __start::__init1
call main
to:__start::@2
__start::@2: scope:[__start] from __start::@1
to:__start::@return
__start::@return: scope:[__start] from __start::@2
return
to:@return
SYMBOL TABLE SSA
__constant char BLACK = 0
__constant char *BORDER_COLOR = (char *)$d020
__constant char DARK_GREY = $b
__constant void (** const KERNEL_IRQ)() = (void (**)())$314
__constant char *RASTER = (char *)$d012
void __start()
__interrupt(hardware_clobber) void irq()
number irq::$0
bool irq::$1
bool irq::$2
char irq::raster_next
char irq::raster_next#0
char irq::raster_next#1
char irq::raster_next#2
char irq::raster_next#3
__loadstore volatile char irq_raster_next
void main()
Adding number conversion cast (unumber) $15 in irq_raster_next = irq_raster_next + $15
Adding number conversion cast (unumber) 7 in irq::$0 = irq::raster_next#0 & 7
Adding number conversion cast (unumber) irq::$0 in irq::$0 = irq::raster_next#0 & (unumber)7
Adding number conversion cast (unumber) 0 in irq::$1 = irq::$0 == 0
Adding number conversion cast (unumber) 1 in irq::raster_next#1 = irq::raster_next#3 - 1
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant pointer cast (void (**)()) 788
Simplifying constant pointer cast (char *) 53280
Simplifying constant pointer cast (char *) 53266
Simplifying constant integer cast $15
Simplifying constant integer cast 7
Simplifying constant integer cast 0
Simplifying constant integer cast 1
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (char) $15
Finalized unsigned number type (char) 7
Finalized unsigned number type (char) 0
Finalized unsigned number type (char) 1
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inferred type updated to char in irq::$0 = irq::raster_next#0 & 7
Inversing boolean not [7] irq::$2 = irq::$0 != 0 from [6] irq::$1 = irq::$0 == 0
Successful SSA optimization Pass2UnaryNotSimplification
Alias irq::raster_next#0 = irq::raster_next#3
Successful SSA optimization Pass2AliasElimination
Simple Condition irq::$2 [7] if(irq::$0!=0) goto irq::@1
Successful SSA optimization Pass2ConditionalJumpSimplification
Added new block during phi lifting irq::@3(between irq and irq::@1)
Adding NOP phi() at start of __start
Adding NOP phi() at start of __start::@1
Adding NOP phi() at start of __start::@2
CALL GRAPH
Calls in [__start] to main:3
Created 1 initial phi equivalence classes
Coalesced [12] irq::raster_next#5 = irq::raster_next#1
Coalesced [17] irq::raster_next#4 = irq::raster_next#0
Coalesced down to 1 phi equivalence classes
Culled Empty Block label __start::@2
Culled Empty Block label irq::@3
Adding NOP phi() at start of __start
Adding NOP phi() at start of __start::@1
FINAL CONTROL FLOW GRAPH
void __start()
__start: scope:[__start] from
[0] phi()
to:__start::__init1
__start::__init1: scope:[__start] from __start
[1] irq_raster_next = 0
to:__start::@1
__start::@1: scope:[__start] from __start::__init1
[2] phi()
[3] call main
to:__start::@return
__start::@return: scope:[__start] from __start::@1
[4] return
to:@return
__interrupt(hardware_clobber) void irq()
irq: scope:[irq] from
[5] *BORDER_COLOR = DARK_GREY
[6] irq_raster_next = irq_raster_next + $15
[7] irq::raster_next#0 = irq_raster_next
[8] irq::$0 = irq::raster_next#0 & 7
[9] if(irq::$0!=0) goto irq::@1
to:irq::@2
irq::@2: scope:[irq] from irq
[10] irq::raster_next#1 = irq::raster_next#0 - 1
to:irq::@1
irq::@1: scope:[irq] from irq irq::@2
[11] irq::raster_next#2 = phi( irq/irq::raster_next#0, irq::@2/irq::raster_next#1 )
[12] *RASTER = irq::raster_next#2
[13] *BORDER_COLOR = BLACK
to:irq::@return
irq::@return: scope:[irq] from irq::@1
[14] return
to:@return
void main()
main: scope:[main] from __start::@1
[15] *KERNEL_IRQ = &irq
to:main::@return
main::@return: scope:[main] from main
[16] return
to:@return
VARIABLE REGISTER WEIGHTS
void __start()
__interrupt(hardware_clobber) void irq()
char irq::$0 // 4.0
char irq::raster_next
char irq::raster_next#0 // 2.6666666666666665
char irq::raster_next#1 // 4.0
char irq::raster_next#2 // 6.0
__loadstore volatile char irq_raster_next // 4.0
void main()
Initial phi equivalence classes
[ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ]
Added variable irq_raster_next to live range equivalence class [ irq_raster_next ]
Added variable irq::$0 to live range equivalence class [ irq::$0 ]
Complete equivalence classes
[ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ]
[ irq_raster_next ]
[ irq::$0 ]
Allocated zp[1]:2 [ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ]
Allocated zp[1]:3 [ irq_raster_next ]
Allocated zp[1]:4 [ irq::$0 ]
REGISTER UPLIFT POTENTIAL REGISTERS
Statement [1] irq_raster_next = 0 [ ] ( [ ] { } ) always clobbers reg byte a
Statement [5] *BORDER_COLOR = DARK_GREY [ irq_raster_next ] ( [ irq_raster_next ] { } ) always clobbers reg byte a
Statement [6] irq_raster_next = irq_raster_next + $15 [ irq_raster_next ] ( [ irq_raster_next ] { } ) always clobbers reg byte a reg byte x
Statement [13] *BORDER_COLOR = BLACK [ ] ( [ ] { } ) always clobbers reg byte a
Statement [14] return [ ] ( [ ] { } ) always clobbers reg byte a reg byte x reg byte y
Statement [15] *KERNEL_IRQ = &irq [ ] ( main:3 [ ] { } ) always clobbers reg byte a
Potential registers zp[1]:2 [ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ] : zp[1]:2 , reg byte a , reg byte x , reg byte y ,
Potential registers zp[1]:3 [ irq_raster_next ] : zp[1]:3 ,
Potential registers zp[1]:4 [ irq::$0 ] : zp[1]:4 , reg byte a , reg byte x , reg byte y ,
REGISTER UPLIFT SCOPES
Uplift Scope [irq] 12.67: zp[1]:2 [ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ] 4: zp[1]:4 [ irq::$0 ]
Uplift Scope [] 4: zp[1]:3 [ irq_raster_next ]
Uplift Scope [main]
Uplift Scope [__start]
Uplifting [irq] best 360 combination reg byte x [ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ] reg byte a [ irq::$0 ]
Uplifting [] best 360 combination zp[1]:3 [ irq_raster_next ]
Uplifting [main] best 360 combination
Uplifting [__start] best 360 combination
Attempting to uplift remaining variables inzp[1]:3 [ irq_raster_next ]
Uplifting [] best 360 combination zp[1]:3 [ irq_raster_next ]
Allocated (was zp[1]:3) zp[1]:2 [ irq_raster_next ]
Interrupt procedure irq clobbers AXcnzP
ASSEMBLER BEFORE OPTIMIZATION
// File Comments
// Upstart
// Commodore 64 PRG executable file
.file [name="clobber-a-problem.prg", type="prg", segments="Program"]
.segmentdef Program [segments="Basic, Code, Data"]
.segmentdef Basic [start=$0801]
.segmentdef Code [start=$80d]
.segmentdef Data [startAfter="Code"]
.segment Basic
:BasicUpstart(__start)
// Global Constants & labels
.const DARK_GREY = $b
.const BLACK = 0
.label KERNEL_IRQ = $314
.label BORDER_COLOR = $d020
.label RASTER = $d012
.label irq_raster_next = 2
.segment Code
// __start
__start: {
jmp __init1
// __start::__init1
__init1:
// [1] irq_raster_next = 0 -- vbuz1=vbuc1
lda #0
sta.z irq_raster_next
// [2] phi from __start::__init1 to __start::@1 [phi:__start::__init1->__start::@1]
__b1_from___init1:
jmp __b1
// __start::@1
__b1:
// [3] call main
jsr main
jmp __breturn
// __start::@return
__breturn:
// [4] return
rts
}
// irq
irq: {
// interrupt(isr_hardware_clobber_entry) -- isr_hardware_all_entry
sta rega+1
stx regx+1
// [5] *BORDER_COLOR = DARK_GREY -- _deref_pbuc1=vbuc2
lda #DARK_GREY
sta BORDER_COLOR
// [6] irq_raster_next = irq_raster_next + $15 -- vbuz1=vbuz1_plus_vbuc1
lax.z irq_raster_next
axs #-[$15]
stx.z irq_raster_next
// [7] irq::raster_next#0 = irq_raster_next -- vbuxx=vbuz1
// Setup next interrupt
ldx.z irq_raster_next
// [8] irq::$0 = irq::raster_next#0 & 7 -- vbuaa=vbuxx_band_vbuc1
txa
and #7
// [9] if(irq::$0!=0) goto irq::@1 -- vbuaa_neq_0_then_la1
cmp #0
bne __b1_from_irq
jmp __b2
// irq::@2
__b2:
// [10] irq::raster_next#1 = irq::raster_next#0 - 1 -- vbuxx=vbuxx_minus_1
dex
// [11] phi from irq irq::@2 to irq::@1 [phi:irq/irq::@2->irq::@1]
__b1_from_irq:
__b1_from___b2:
// [11] phi irq::raster_next#2 = irq::raster_next#0 [phi:irq/irq::@2->irq::@1#0] -- register_copy
jmp __b1
// irq::@1
__b1:
// [12] *RASTER = irq::raster_next#2 -- _deref_pbuc1=vbuxx
stx RASTER
// [13] *BORDER_COLOR = BLACK -- _deref_pbuc1=vbuc2
lda #BLACK
sta BORDER_COLOR
jmp __breturn
// irq::@return
__breturn:
// [14] return
// interrupt(isr_hardware_clobber_exit) -- isr_hardware_all_exit
rega:
lda #0
regx:
ldx #0
rti
}
// main
main: {
// [15] *KERNEL_IRQ = &irq -- _deref_qprc1=pprc2
lda #<irq
sta KERNEL_IRQ
lda #>irq
sta KERNEL_IRQ+1
jmp __breturn
// main::@return
__breturn:
// [16] return
rts
}
// File Data
ASSEMBLER OPTIMIZATIONS
Removing instruction jmp __init1
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __b2
Removing instruction jmp __b1
Removing instruction jmp __breturn
Removing instruction jmp __breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction ldx.z irq_raster_next
Succesful ASM optimization Pass5UnnecesaryLoadElimination
Replacing label __b1_from_irq with __b1
Removing instruction __b1_from___init1:
Removing instruction __b1_from_irq:
Removing instruction __b1_from___b2:
Removing instruction __breturn:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction __init1:
Removing instruction __b1:
Removing instruction __breturn:
Removing instruction __b2:
Removing instruction __breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
FINAL SYMBOL TABLE
__constant char BLACK = 0
__constant char *BORDER_COLOR = (char *) 53280
__constant char DARK_GREY = $b
__constant void (** const KERNEL_IRQ)() = (void (**)()) 788
__constant char *RASTER = (char *) 53266
void __start()
__interrupt(hardware_clobber) void irq()
char irq::$0 // reg byte a 4.0
char irq::raster_next
char irq::raster_next#0 // reg byte x 2.6666666666666665
char irq::raster_next#1 // reg byte x 4.0
char irq::raster_next#2 // reg byte x 6.0
__loadstore volatile char irq_raster_next // zp[1]:2 4.0
void main()
reg byte x [ irq::raster_next#2 irq::raster_next#0 irq::raster_next#1 ]
zp[1]:2 [ irq_raster_next ]
reg byte a [ irq::$0 ]
FINAL ASSEMBLER
Score: 249
// File Comments
// Upstart
// Commodore 64 PRG executable file
.file [name="clobber-a-problem.prg", type="prg", segments="Program"]
.segmentdef Program [segments="Basic, Code, Data"]
.segmentdef Basic [start=$0801]
.segmentdef Code [start=$80d]
.segmentdef Data [startAfter="Code"]
.segment Basic
:BasicUpstart(__start)
// Global Constants & labels
.const DARK_GREY = $b
.const BLACK = 0
.label KERNEL_IRQ = $314
.label BORDER_COLOR = $d020
.label RASTER = $d012
.label irq_raster_next = 2
.segment Code
// __start
__start: {
// __start::__init1
// volatile byte irq_raster_next = 0
// [1] irq_raster_next = 0 -- vbuz1=vbuc1
lda #0
sta.z irq_raster_next
// [2] phi from __start::__init1 to __start::@1 [phi:__start::__init1->__start::@1]
// __start::@1
// [3] call main
jsr main
// __start::@return
// [4] return
rts
}
// irq
irq: {
// interrupt(isr_hardware_clobber_entry) -- isr_hardware_all_entry
sta rega+1
stx regx+1
// *BORDER_COLOR = DARK_GREY
// [5] *BORDER_COLOR = DARK_GREY -- _deref_pbuc1=vbuc2
lda #DARK_GREY
sta BORDER_COLOR
// irq_raster_next += 21
// [6] irq_raster_next = irq_raster_next + $15 -- vbuz1=vbuz1_plus_vbuc1
lax.z irq_raster_next
axs #-[$15]
stx.z irq_raster_next
// byte raster_next = irq_raster_next
// [7] irq::raster_next#0 = irq_raster_next -- vbuxx=vbuz1
// Setup next interrupt
// raster_next&7
// [8] irq::$0 = irq::raster_next#0 & 7 -- vbuaa=vbuxx_band_vbuc1
txa
and #7
// if((raster_next&7)==0)
// [9] if(irq::$0!=0) goto irq::@1 -- vbuaa_neq_0_then_la1
cmp #0
bne __b1
// irq::@2
// raster_next -=1
// [10] irq::raster_next#1 = irq::raster_next#0 - 1 -- vbuxx=vbuxx_minus_1
dex
// [11] phi from irq irq::@2 to irq::@1 [phi:irq/irq::@2->irq::@1]
// [11] phi irq::raster_next#2 = irq::raster_next#0 [phi:irq/irq::@2->irq::@1#0] -- register_copy
// irq::@1
__b1:
// *RASTER = raster_next
// [12] *RASTER = irq::raster_next#2 -- _deref_pbuc1=vbuxx
stx RASTER
// *BORDER_COLOR = BLACK
// [13] *BORDER_COLOR = BLACK -- _deref_pbuc1=vbuc2
lda #BLACK
sta BORDER_COLOR
// irq::@return
// }
// [14] return
// interrupt(isr_hardware_clobber_exit) -- isr_hardware_all_exit
rega:
lda #0
regx:
ldx #0
rti
}
// main
main: {
// *KERNEL_IRQ = &irq
// [15] *KERNEL_IRQ = &irq -- _deref_qprc1=pprc2
lda #<irq
sta KERNEL_IRQ
lda #>irq
sta KERNEL_IRQ+1
// main::@return
// }
// [16] return
rts
}
// File Data
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