mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-09-29 03:56:15 +00:00
245 lines
9.5 KiB
Plaintext
245 lines
9.5 KiB
Plaintext
Removing C-classic struct-unwound assignment main::v = struct-unwound {*(&main::v)}
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CONTROL FLOW GRAPH SSA
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void main()
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main: scope:[main] from __start
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*(&main::v) = memcpy(*(&$0), struct Vector, SIZEOF_STRUCT_VECTOR)
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SCREEN[0] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P+OFFSET_STRUCT_POINT_X)
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SCREEN[1] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P+OFFSET_STRUCT_POINT_Y)
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SCREEN[2] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_X)
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SCREEN[3] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y)
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to:main::@return
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main::@return: scope:[main] from main
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return
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to:@return
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void __start()
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__start: scope:[__start] from
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call main
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to:__start::@1
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__start::@1: scope:[__start] from __start
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to:__start::@return
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__start::@return: scope:[__start] from __start::@1
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return
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to:@return
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SYMBOL TABLE SSA
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__constant struct Vector $0 = { p: { x: 2, y: 3 }, q: { x: 4, y: 5 } }
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__constant char OFFSET_STRUCT_POINT_X = 0
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__constant char OFFSET_STRUCT_POINT_Y = 1
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__constant char OFFSET_STRUCT_VECTOR_P = 0
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__constant char OFFSET_STRUCT_VECTOR_Q = 2
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__constant char * const SCREEN = (char *)$400
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__constant char SIZEOF_STRUCT_VECTOR = 4
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void __start()
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void main()
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__loadstore struct Vector main::v
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Adding number conversion cast (unumber) 0 in SCREEN[0] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P+OFFSET_STRUCT_POINT_X)
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Adding number conversion cast (unumber) 1 in SCREEN[1] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P+OFFSET_STRUCT_POINT_Y)
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Adding number conversion cast (unumber) 2 in SCREEN[2] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_X)
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Adding number conversion cast (unumber) 3 in SCREEN[3] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y)
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant pointer cast (char *) 1024
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Simplifying constant integer cast 0
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Simplifying constant integer cast 1
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Simplifying constant integer cast 2
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Simplifying constant integer cast 3
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (char) 0
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Finalized unsigned number type (char) 1
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Finalized unsigned number type (char) 2
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Finalized unsigned number type (char) 3
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Simplifying expression containing zero (char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P in [1] SCREEN[0] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P+OFFSET_STRUCT_POINT_X)
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Simplifying expression containing zero (struct Point *)&main::v in [1] SCREEN[0] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P)
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Simplifying expression containing zero SCREEN in [1] SCREEN[0] = *((char *)(struct Point *)&main::v)
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Simplifying expression containing zero (struct Point *)&main::v in [2] SCREEN[1] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_P+OFFSET_STRUCT_POINT_Y)
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Simplifying expression containing zero (char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q in [3] SCREEN[2] = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_X)
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Successful SSA optimization PassNSimplifyExpressionWithZero
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Eliminating unused constant OFFSET_STRUCT_VECTOR_P
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Eliminating unused constant OFFSET_STRUCT_POINT_X
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Successful SSA optimization PassNEliminateUnusedVars
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Removing unused procedure __start
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Removing unused procedure block __start
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Removing unused procedure block __start::@1
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Removing unused procedure block __start::@return
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Successful SSA optimization PassNEliminateEmptyStart
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Consolidated array index constant in *(SCREEN+1)
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Consolidated array index constant in *(SCREEN+2)
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Consolidated array index constant in *(SCREEN+3)
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Successful SSA optimization Pass2ConstantAdditionElimination
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CALL GRAPH
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Created 0 initial phi equivalence classes
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Coalesced down to 0 phi equivalence classes
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FINAL CONTROL FLOW GRAPH
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void main()
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main: scope:[main] from
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[0] *(&main::v) = memcpy(*(&$0), struct Vector, SIZEOF_STRUCT_VECTOR)
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[1] *SCREEN = *((char *)(struct Point *)&main::v)
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[2] *(SCREEN+1) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_POINT_Y)
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[3] *(SCREEN+2) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q)
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[4] *(SCREEN+3) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y)
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to:main::@return
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main::@return: scope:[main] from main
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[5] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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void main()
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__loadstore struct Vector main::v
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Initial phi equivalence classes
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Added variable main::v to live range equivalence class [ main::v ]
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Complete equivalence classes
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[ main::v ]
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Allocated zp[4]:2 [ main::v ]
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [0] *(&main::v) = memcpy(*(&$0), struct Vector, SIZEOF_STRUCT_VECTOR) [ main::v ] ( [ main::v ] { } ) always clobbers reg byte a reg byte y
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Statement [1] *SCREEN = *((char *)(struct Point *)&main::v) [ main::v ] ( [ main::v ] { } ) always clobbers reg byte a
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Statement [2] *(SCREEN+1) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_POINT_Y) [ main::v ] ( [ main::v ] { } ) always clobbers reg byte a
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Statement [3] *(SCREEN+2) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q) [ main::v ] ( [ main::v ] { } ) always clobbers reg byte a
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Statement [4] *(SCREEN+3) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y) [ ] ( [ ] { } ) always clobbers reg byte a
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Potential registers zp[4]:2 [ main::v ] : zp[4]:2 ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [Point]
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Uplift Scope [Vector]
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Uplift Scope [main] 0: zp[4]:2 [ main::v ]
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Uplift Scope []
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Uplifting [Point] best 53 combination
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Uplifting [Vector] best 53 combination
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Uplifting [main] best 53 combination zp[4]:2 [ main::v ]
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Uplifting [] best 53 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Minimal struct with C-Standard behavior - struct containing struct with initializer
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="struct-18.prg", type="prg", segments="Program"]
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.segmentdef Program [segments="Basic, Code, Data"]
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.segmentdef Basic [start=$0801]
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.segmentdef Code [start=$80d]
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.segmentdef Data [startAfter="Code"]
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.segment Basic
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:BasicUpstart(main)
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// Global Constants & labels
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.const SIZEOF_STRUCT_VECTOR = 4
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.const OFFSET_STRUCT_POINT_Y = 1
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.const OFFSET_STRUCT_VECTOR_Q = 2
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.label SCREEN = $400
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.segment Code
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// main
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main: {
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.label v = 2
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// [0] *(&main::v) = memcpy(*(&$0), struct Vector, SIZEOF_STRUCT_VECTOR) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
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ldy #SIZEOF_STRUCT_VECTOR
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!:
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lda __0-1,y
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sta v-1,y
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dey
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bne !-
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// [1] *SCREEN = *((char *)(struct Point *)&main::v) -- _deref_pbuc1=_deref_pbuc2
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lda.z v
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sta SCREEN
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// [2] *(SCREEN+1) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda.z v+OFFSET_STRUCT_POINT_Y
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sta SCREEN+1
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// [3] *(SCREEN+2) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q) -- _deref_pbuc1=_deref_pbuc2
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lda.z v+OFFSET_STRUCT_VECTOR_Q
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sta SCREEN+2
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// [4] *(SCREEN+3) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda.z v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y
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sta SCREEN+3
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jmp __breturn
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// main::@return
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__breturn:
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// [5] return
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rts
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}
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// File Data
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.segment Data
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__0: .byte 2, 3, 4, 5
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ASSEMBLER OPTIMIZATIONS
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Removing instruction jmp __breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction __breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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FINAL SYMBOL TABLE
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__constant struct Vector $0 = { p: { x: 2, y: 3 }, q: { x: 4, y: 5 } }
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__constant char OFFSET_STRUCT_POINT_Y = 1
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__constant char OFFSET_STRUCT_VECTOR_Q = 2
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__constant char * const SCREEN = (char *) 1024
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__constant char SIZEOF_STRUCT_VECTOR = 4
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void main()
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__loadstore struct Vector main::v // zp[4]:2
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zp[4]:2 [ main::v ]
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FINAL ASSEMBLER
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Score: 50
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// File Comments
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// Minimal struct with C-Standard behavior - struct containing struct with initializer
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// Upstart
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// Commodore 64 PRG executable file
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.file [name="struct-18.prg", type="prg", segments="Program"]
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.segmentdef Program [segments="Basic, Code, Data"]
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.segmentdef Basic [start=$0801]
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.segmentdef Code [start=$80d]
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.segmentdef Data [startAfter="Code"]
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.segment Basic
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:BasicUpstart(main)
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// Global Constants & labels
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.const SIZEOF_STRUCT_VECTOR = 4
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.const OFFSET_STRUCT_POINT_Y = 1
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.const OFFSET_STRUCT_VECTOR_Q = 2
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.label SCREEN = $400
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.segment Code
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// main
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main: {
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.label v = 2
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// __ma struct Vector v = { {2, 3}, {4, 5} }
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// [0] *(&main::v) = memcpy(*(&$0), struct Vector, SIZEOF_STRUCT_VECTOR) -- _deref_pssc1=_deref_pssc2_memcpy_vbuc3
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ldy #SIZEOF_STRUCT_VECTOR
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!:
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lda __0-1,y
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sta v-1,y
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dey
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bne !-
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// SCREEN[0] = v.p.x
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// [1] *SCREEN = *((char *)(struct Point *)&main::v) -- _deref_pbuc1=_deref_pbuc2
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lda.z v
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sta SCREEN
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// SCREEN[1] = v.p.y
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// [2] *(SCREEN+1) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda.z v+OFFSET_STRUCT_POINT_Y
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sta SCREEN+1
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// SCREEN[2] = v.q.x
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// [3] *(SCREEN+2) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q) -- _deref_pbuc1=_deref_pbuc2
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lda.z v+OFFSET_STRUCT_VECTOR_Q
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sta SCREEN+2
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// SCREEN[3] = v.q.y
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// [4] *(SCREEN+3) = *((char *)(struct Point *)&main::v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda.z v+OFFSET_STRUCT_VECTOR_Q+OFFSET_STRUCT_POINT_Y
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sta SCREEN+3
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// main::@return
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// }
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// [5] return
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rts
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}
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// File Data
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.segment Data
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__0: .byte 2, 3, 4, 5
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