mirror of https://gitlab.com/camelot/kickc.git
229 lines
6.0 KiB
Plaintext
229 lines
6.0 KiB
Plaintext
Inlined call call __init
|
|
|
|
CONTROL FLOW GRAPH SSA
|
|
|
|
void main()
|
|
main: scope:[main] from __start::@1
|
|
idx#7 = phi( __start::@1/idx#11 )
|
|
SCREEN[idx#7] = 'c'
|
|
idx#0 = ++ idx#7
|
|
SCREEN[idx#0] = 'm'
|
|
idx#1 = ++ idx#0
|
|
SCREEN[idx#1] = 'l'
|
|
idx#2 = ++ idx#1
|
|
to:main::@return
|
|
main::@return: scope:[main] from main
|
|
idx#8 = phi( main/idx#2 )
|
|
idx#3 = idx#8
|
|
return
|
|
to:@return
|
|
|
|
void __start()
|
|
__start: scope:[__start] from
|
|
to:__start::__init1
|
|
__start::__init1: scope:[__start] from __start
|
|
idx#4 = 0
|
|
to:__start::@1
|
|
__start::@1: scope:[__start] from __start::__init1
|
|
idx#11 = phi( __start::__init1/idx#4 )
|
|
call main
|
|
to:__start::@2
|
|
__start::@2: scope:[__start] from __start::@1
|
|
idx#9 = phi( __start::@1/idx#3 )
|
|
idx#5 = idx#9
|
|
to:__start::@return
|
|
__start::@return: scope:[__start] from __start::@2
|
|
idx#10 = phi( __start::@2/idx#5 )
|
|
idx#6 = idx#10
|
|
return
|
|
to:@return
|
|
|
|
SYMBOL TABLE SSA
|
|
__constant char * const SCREEN = (char *)$400
|
|
void __start()
|
|
char idx
|
|
char idx#0
|
|
char idx#1
|
|
char idx#10
|
|
char idx#11
|
|
char idx#2
|
|
char idx#3
|
|
char idx#4
|
|
char idx#5
|
|
char idx#6
|
|
char idx#7
|
|
char idx#8
|
|
char idx#9
|
|
void main()
|
|
|
|
Simplifying constant pointer cast (char *) 1024
|
|
Successful SSA optimization PassNCastSimplification
|
|
Alias idx#2 = idx#8 idx#3
|
|
Alias idx#11 = idx#4
|
|
Alias idx#10 = idx#5 idx#9 idx#6
|
|
Successful SSA optimization Pass2AliasElimination
|
|
Identical Phi Values idx#7 idx#11
|
|
Identical Phi Values idx#10 idx#2
|
|
Successful SSA optimization Pass2IdenticalPhiElimination
|
|
Constant idx#11 = 0
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Simplifying expression containing zero SCREEN in [1] SCREEN[idx#11] = 'c'
|
|
Successful SSA optimization PassNSimplifyExpressionWithZero
|
|
Eliminating unused variable idx#2 and assignment [5] idx#2 = ++ idx#1
|
|
Successful SSA optimization PassNEliminateUnusedVars
|
|
Removing unused procedure __start
|
|
Removing unused procedure block __start
|
|
Removing unused procedure block __start::__init1
|
|
Removing unused procedure block __start::@1
|
|
Removing unused procedure block __start::@2
|
|
Removing unused procedure block __start::@return
|
|
Successful SSA optimization PassNEliminateEmptyStart
|
|
Constant right-side identified [1] idx#0 = ++ idx#11
|
|
Successful SSA optimization Pass2ConstantRValueConsolidation
|
|
Constant idx#0 = ++idx#11
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Constant right-side identified [2] idx#1 = ++ idx#0
|
|
Successful SSA optimization Pass2ConstantRValueConsolidation
|
|
Constant idx#1 = ++idx#0
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Inlining constant with different constant siblings idx#11
|
|
Inlining constant with different constant siblings idx#0
|
|
Inlining constant with different constant siblings idx#1
|
|
Constant inlined idx#0 = ++0
|
|
Constant inlined idx#1 = ++++0
|
|
Constant inlined idx#11 = 0
|
|
Successful SSA optimization Pass2ConstantInlining
|
|
Consolidated array index constant in *(SCREEN+++0)
|
|
Consolidated array index constant in *(SCREEN+++++0)
|
|
Successful SSA optimization Pass2ConstantAdditionElimination
|
|
Simplifying constant integer increment ++0
|
|
Simplifying constant integer increment ++0
|
|
Successful SSA optimization Pass2ConstantSimplification
|
|
Simplifying constant integer increment ++1
|
|
Successful SSA optimization Pass2ConstantSimplification
|
|
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 = 'c'
|
|
[1] *(SCREEN+1) = 'm'
|
|
[2] *(SCREEN+2) = 'l'
|
|
to:main::@return
|
|
main::@return: scope:[main] from main
|
|
[3] return
|
|
to:@return
|
|
|
|
|
|
VARIABLE REGISTER WEIGHTS
|
|
char idx
|
|
void main()
|
|
|
|
Initial phi equivalence classes
|
|
Complete equivalence classes
|
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
|
Statement [0] *SCREEN = 'c' [ ] ( [ ] { } ) always clobbers reg byte a
|
|
Statement [1] *(SCREEN+1) = 'm' [ ] ( [ ] { } ) always clobbers reg byte a
|
|
Statement [2] *(SCREEN+2) = 'l' [ ] ( [ ] { } ) always clobbers reg byte a
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
Uplift Scope [main]
|
|
Uplift Scope []
|
|
|
|
Uplifting [main] best 27 combination
|
|
Uplifting [] best 27 combination
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
|
// File Comments
|
|
// Test declarations of variables without definition
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="cstyle-decl-var.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
|
|
// The actual declarations
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
// And a little code using them
|
|
main: {
|
|
// [0] *SCREEN = 'c' -- _deref_pbuc1=vbuc2
|
|
lda #'c'
|
|
sta SCREEN
|
|
// [1] *(SCREEN+1) = 'm' -- _deref_pbuc1=vbuc2
|
|
lda #'m'
|
|
sta SCREEN+1
|
|
// [2] *(SCREEN+2) = 'l' -- _deref_pbuc1=vbuc2
|
|
lda #'l'
|
|
sta SCREEN+2
|
|
jmp __breturn
|
|
// main::@return
|
|
__breturn:
|
|
// [3] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|
|
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
|
|
char idx
|
|
void main()
|
|
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 24
|
|
|
|
// File Comments
|
|
// Test declarations of variables without definition
|
|
// Upstart
|
|
// Commodore 64 PRG executable file
|
|
.file [name="cstyle-decl-var.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
|
|
// The actual declarations
|
|
.label SCREEN = $400
|
|
.segment Code
|
|
// main
|
|
// And a little code using them
|
|
main: {
|
|
// SCREEN[idx++] = 'c'
|
|
// [0] *SCREEN = 'c' -- _deref_pbuc1=vbuc2
|
|
lda #'c'
|
|
sta SCREEN
|
|
// SCREEN[idx++] = 'm'
|
|
// [1] *(SCREEN+1) = 'm' -- _deref_pbuc1=vbuc2
|
|
lda #'m'
|
|
sta SCREEN+1
|
|
// SCREEN[idx++] = 'l'
|
|
// [2] *(SCREEN+2) = 'l' -- _deref_pbuc1=vbuc2
|
|
lda #'l'
|
|
sta SCREEN+2
|
|
// main::@return
|
|
// }
|
|
// [3] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|