mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-06-03 07:29:37 +00:00
167 lines
4.9 KiB
Plaintext
167 lines
4.9 KiB
Plaintext
|
|
CONTROL FLOW GRAPH SSA
|
|
|
|
void main()
|
|
main: scope:[main] from __start
|
|
SCREEN[0] = *((char *)(struct Move *)&data+OFFSET_UNION_DATA_M+OFFSET_STRUCT_MOVE_F)
|
|
to:main::@return
|
|
main::@return: scope:[main] from main
|
|
return
|
|
to:@return
|
|
|
|
void __start()
|
|
__start: scope:[__start] from
|
|
call main
|
|
to:__start::@1
|
|
__start::@1: scope:[__start] from __start
|
|
to:__start::@return
|
|
__start::@return: scope:[__start] from __start::@1
|
|
return
|
|
to:@return
|
|
|
|
SYMBOL TABLE SSA
|
|
__constant char OFFSET_STRUCT_MOVE_F = 0
|
|
__constant char OFFSET_UNION_DATA_M = 0
|
|
__constant char * const SCREEN = (char *)$400
|
|
void __start()
|
|
__loadstore union Data data = { t: { t: 1, s: 2, r: 3, d: 4 } }
|
|
void main()
|
|
|
|
Adding number conversion cast (unumber) 0 in SCREEN[0] = *((char *)(struct Move *)&data+OFFSET_UNION_DATA_M+OFFSET_STRUCT_MOVE_F)
|
|
Successful SSA optimization PassNAddNumberTypeConversions
|
|
Simplifying constant pointer cast (char *) 1024
|
|
Simplifying constant integer cast 0
|
|
Successful SSA optimization PassNCastSimplification
|
|
Finalized unsigned number type (char) 0
|
|
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
|
Simplifying expression containing zero (char *)(struct Move *)&data+OFFSET_UNION_DATA_M in [0] SCREEN[0] = *((char *)(struct Move *)&data+OFFSET_UNION_DATA_M+OFFSET_STRUCT_MOVE_F)
|
|
Simplifying expression containing zero (struct Move *)&data in [0] SCREEN[0] = *((char *)(struct Move *)&data+OFFSET_UNION_DATA_M)
|
|
Simplifying expression containing zero SCREEN in [0] SCREEN[0] = *((char *)(struct Move *)&data)
|
|
Successful SSA optimization PassNSimplifyExpressionWithZero
|
|
Eliminating unused constant OFFSET_UNION_DATA_M
|
|
Eliminating unused constant OFFSET_STRUCT_MOVE_F
|
|
Successful SSA optimization PassNEliminateUnusedVars
|
|
Removing unused procedure __start
|
|
Removing unused procedure block __start
|
|
Removing unused procedure block __start::@1
|
|
Removing unused procedure block __start::@return
|
|
Successful SSA optimization PassNEliminateEmptyStart
|
|
CALL GRAPH
|
|
|
|
Created 0 initial phi equivalence classes
|
|
Coalesced down to 0 phi equivalence classes
|
|
|
|
FINAL CONTROL FLOW GRAPH
|
|
|
|
void main()
|
|
main: scope:[main] from
|
|
[0] *SCREEN = *((char *)(struct Move *)&data)
|
|
to:main::@return
|
|
main::@return: scope:[main] from main
|
|
[1] return
|
|
to:@return
|
|
|
|
|
|
VARIABLE REGISTER WEIGHTS
|
|
__loadstore union Data data = { t: { t: 1, s: 2, r: 3, d: 4 } }
|
|
void main()
|
|
|
|
Initial phi equivalence classes
|
|
Added variable data to live range equivalence class [ data ]
|
|
Complete equivalence classes
|
|
[ data ]
|
|
Allocated mem[4] [ data ]
|
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
|
Statement [0] *SCREEN = *((char *)(struct Move *)&data) [ ] ( [ ] { } ) always clobbers reg byte a
|
|
Potential registers mem[4] [ data ] : mem[4] ,
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
Uplift Scope [Move]
|
|
Uplift Scope [Turn]
|
|
Uplift Scope [Data]
|
|
Uplift Scope [main]
|
|
Uplift Scope [] 0: mem[4] [ data ]
|
|
|
|
Uplifting [Move] best 17 combination
|
|
Uplifting [Turn] best 17 combination
|
|
Uplifting [Data] best 17 combination
|
|
Uplifting [main] best 17 combination
|
|
Uplifting [] best 17 combination mem[4] [ data ]
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
|
// File Comments
|
|
// More extensive union with C99 style designator initialization behaviour of the second element.
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="union-10.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(main)
|
|
// Global Constants & labels
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
// [0] *SCREEN = *((char *)(struct Move *)&data) -- _deref_pbuc1=_deref_pbuc2
|
|
lda data
|
|
sta SCREEN
|
|
jmp __breturn
|
|
// main::@return
|
|
__breturn:
|
|
// [1] return
|
|
rts
|
|
}
|
|
// File Data
|
|
.segment Data
|
|
data: .byte 1, 2, 3, 4
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
Removing instruction jmp __breturn
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Removing instruction __breturn:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
|
|
FINAL SYMBOL TABLE
|
|
__constant char * const SCREEN = (char *) 1024
|
|
__loadstore union Data data = { t: { t: 1, s: 2, r: 3, d: 4 } } // mem[4]
|
|
void main()
|
|
|
|
mem[4] [ data ]
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 14
|
|
|
|
// File Comments
|
|
// More extensive union with C99 style designator initialization behaviour of the second element.
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="union-10.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(main)
|
|
// Global Constants & labels
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
main: {
|
|
// SCREEN[0] = data.m.f
|
|
// [0] *SCREEN = *((char *)(struct Move *)&data) -- _deref_pbuc1=_deref_pbuc2
|
|
lda data
|
|
sta SCREEN
|
|
// main::@return
|
|
// }
|
|
// [1] return
|
|
rts
|
|
}
|
|
// File Data
|
|
.segment Data
|
|
data: .byte 1, 2, 3, 4
|
|
|