mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-09-08 17:54:40 +00:00
368 lines
16 KiB
Plaintext
368 lines
16 KiB
Plaintext
Fixing pointer increment (struct Point*) points ← ++ (struct Point*) points
|
|
Rewriting struct pointer member access *((struct Point*) points).x
|
|
Rewriting struct pointer member access *((struct Point*) points).y
|
|
Rewriting struct pointer member access *((struct Point*) points).x
|
|
Rewriting struct pointer member access *((struct Point*) points).y
|
|
|
|
CONTROL FLOW GRAPH SSA
|
|
@begin: scope:[] from
|
|
(struct Point*) points#0 ← ((struct Point*)) (number) $1000
|
|
to:@1
|
|
main: scope:[main] from @1
|
|
(struct Point*) points#4 ← phi( @1/(struct Point*) points#7 )
|
|
(byte*) main::SCREEN#0 ← ((byte*)) (number) $400
|
|
(byte*) main::$0 ← (byte*)(struct Point*) points#4 + (const byte) OFFSET_STRUCT_POINT_X
|
|
*((byte*) main::SCREEN#0 + (number) 0) ← *((byte*) main::$0)
|
|
(byte*) main::$1 ← (byte*)(struct Point*) points#4 + (const byte) OFFSET_STRUCT_POINT_Y
|
|
*((byte*) main::SCREEN#0 + (number) 1) ← *((byte*) main::$1)
|
|
(struct Point*) points#1 ← (struct Point*) points#4 + (const byte) SIZEOF_STRUCT_POINT
|
|
(byte*) main::$2 ← (byte*)(struct Point*) points#1 + (const byte) OFFSET_STRUCT_POINT_X
|
|
*((byte*) main::SCREEN#0 + (number) 2) ← *((byte*) main::$2)
|
|
(byte*) main::$3 ← (byte*)(struct Point*) points#1 + (const byte) OFFSET_STRUCT_POINT_Y
|
|
*((byte*) main::SCREEN#0 + (number) 3) ← *((byte*) main::$3)
|
|
to:main::@return
|
|
main::@return: scope:[main] from main
|
|
(struct Point*) points#5 ← phi( main/(struct Point*) points#1 )
|
|
(struct Point*) points#2 ← (struct Point*) points#5
|
|
return
|
|
to:@return
|
|
@1: scope:[] from @begin
|
|
(struct Point*) points#7 ← phi( @begin/(struct Point*) points#0 )
|
|
call main
|
|
to:@2
|
|
@2: scope:[] from @1
|
|
(struct Point*) points#6 ← phi( @1/(struct Point*) points#2 )
|
|
(struct Point*) points#3 ← (struct Point*) points#6
|
|
to:@end
|
|
@end: scope:[] from @2
|
|
|
|
SYMBOL TABLE SSA
|
|
(label) @1
|
|
(label) @2
|
|
(label) @begin
|
|
(label) @end
|
|
(const byte) OFFSET_STRUCT_POINT_X = (byte) 0
|
|
(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
|
|
(byte) Point::x
|
|
(byte) Point::y
|
|
(const byte) SIZEOF_STRUCT_POINT = (byte) 2
|
|
(void()) main()
|
|
(byte*) main::$0
|
|
(byte*) main::$1
|
|
(byte*) main::$2
|
|
(byte*) main::$3
|
|
(label) main::@return
|
|
(byte*) main::SCREEN
|
|
(byte*) main::SCREEN#0
|
|
(struct Point*) points
|
|
(struct Point*) points#0
|
|
(struct Point*) points#1
|
|
(struct Point*) points#2
|
|
(struct Point*) points#3
|
|
(struct Point*) points#4
|
|
(struct Point*) points#5
|
|
(struct Point*) points#6
|
|
(struct Point*) points#7
|
|
|
|
Adding number conversion cast (unumber) 0 in *((byte*) main::SCREEN#0 + (number) 0) ← *((byte*) main::$0)
|
|
Adding number conversion cast (unumber) 1 in *((byte*) main::SCREEN#0 + (number) 1) ← *((byte*) main::$1)
|
|
Adding number conversion cast (unumber) 2 in *((byte*) main::SCREEN#0 + (number) 2) ← *((byte*) main::$2)
|
|
Adding number conversion cast (unumber) 3 in *((byte*) main::SCREEN#0 + (number) 3) ← *((byte*) main::$3)
|
|
Successful SSA optimization PassNAddNumberTypeConversions
|
|
Inlining cast (struct Point*) points#0 ← (struct Point*)(number) $1000
|
|
Inlining cast (byte*) main::SCREEN#0 ← (byte*)(number) $400
|
|
Successful SSA optimization Pass2InlineCast
|
|
Simplifying constant pointer cast (struct Point*) 4096
|
|
Simplifying constant pointer cast (byte*) 1024
|
|
Simplifying constant integer cast 0
|
|
Simplifying constant integer cast 1
|
|
Simplifying constant integer cast 2
|
|
Simplifying constant integer cast 3
|
|
Successful SSA optimization PassNCastSimplification
|
|
Finalized unsigned number type (byte) 0
|
|
Finalized unsigned number type (byte) 1
|
|
Finalized unsigned number type (byte) 2
|
|
Finalized unsigned number type (byte) 3
|
|
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
|
Alias (struct Point*) points#1 = (struct Point*) points#5 (struct Point*) points#2
|
|
Alias (struct Point*) points#0 = (struct Point*) points#7
|
|
Alias (struct Point*) points#3 = (struct Point*) points#6
|
|
Successful SSA optimization Pass2AliasElimination
|
|
Identical Phi Values (struct Point*) points#4 (struct Point*) points#0
|
|
Identical Phi Values (struct Point*) points#3 (struct Point*) points#1
|
|
Successful SSA optimization Pass2IdenticalPhiElimination
|
|
Constant (const struct Point*) points#0 = (struct Point*) 4096
|
|
Constant (const byte*) main::SCREEN#0 = (byte*) 1024
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Constant value identified (byte*)points#0 in [3] (byte*) main::$0 ← (byte*)(const struct Point*) points#0 + (const byte) OFFSET_STRUCT_POINT_X
|
|
Constant value identified (byte*)points#0 in [5] (byte*) main::$1 ← (byte*)(const struct Point*) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
|
|
Successful SSA optimization Pass2ConstantValues
|
|
Converting *(pointer+n) to pointer[n] [4] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*) main::$0) -- *((byte*)points#0 + OFFSET_STRUCT_POINT_X)
|
|
Converting *(pointer+n) to pointer[n] [6] *((const byte*) main::SCREEN#0 + (byte) 1) ← *((byte*) main::$1) -- *((byte*)points#0 + OFFSET_STRUCT_POINT_Y)
|
|
Converting *(pointer+n) to pointer[n] [9] *((const byte*) main::SCREEN#0 + (byte) 2) ← *((byte*) main::$2) -- *((byte*)points#1 + OFFSET_STRUCT_POINT_X)
|
|
Converting *(pointer+n) to pointer[n] [11] *((const byte*) main::SCREEN#0 + (byte) 3) ← *((byte*) main::$3) -- *((byte*)points#1 + OFFSET_STRUCT_POINT_Y)
|
|
Successful SSA optimization Pass2InlineDerefIdx
|
|
Simplifying expression containing zero (byte*)points#0 in [3] (byte*) main::$0 ← (byte*)(const struct Point*) points#0 + (const byte) OFFSET_STRUCT_POINT_X
|
|
Simplifying expression containing zero (byte*)points#0 in [4] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*)(const struct Point*) points#0 + (const byte) OFFSET_STRUCT_POINT_X)
|
|
Simplifying expression containing zero main::SCREEN#0 in [4] *((const byte*) main::SCREEN#0 + (byte) 0) ← *((byte*)(const struct Point*) points#0)
|
|
Simplifying expression containing zero (byte*)points#1 in [8] (byte*) main::$2 ← (byte*)(struct Point*) points#1 + (const byte) OFFSET_STRUCT_POINT_X
|
|
Simplifying expression containing zero (byte*)points#1 in [9] *((const byte*) main::SCREEN#0 + (byte) 2) ← *((byte*)(struct Point*) points#1 + (const byte) OFFSET_STRUCT_POINT_X)
|
|
Successful SSA optimization PassNSimplifyExpressionWithZero
|
|
Eliminating unused variable (byte*) main::$0 and assignment [0] (byte*) main::$0 ← (byte*)(const struct Point*) points#0
|
|
Eliminating unused variable (byte*) main::$1 and assignment [2] (byte*) main::$1 ← (byte*)(const struct Point*) points#0 + (const byte) OFFSET_STRUCT_POINT_Y
|
|
Eliminating unused variable (byte*) main::$2 and assignment [5] (byte*) main::$2 ← (byte*)(struct Point*) points#1
|
|
Eliminating unused variable (byte*) main::$3 and assignment [7] (byte*) main::$3 ← (byte*)(struct Point*) points#1 + (const byte) OFFSET_STRUCT_POINT_Y
|
|
Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
|
|
Successful SSA optimization PassNEliminateUnusedVars
|
|
Constant right-side identified [2] (struct Point*) points#1 ← (const struct Point*) points#0 + (const byte) SIZEOF_STRUCT_POINT
|
|
Successful SSA optimization Pass2ConstantRValueConsolidation
|
|
Constant (const struct Point*) points#1 = points#0+SIZEOF_STRUCT_POINT
|
|
Successful SSA optimization Pass2ConstantIdentification
|
|
Constant value identified (byte*)points#1 in [3] *((const byte*) main::SCREEN#0 + (byte) 2) ← *((byte*)(const struct Point*) points#1)
|
|
Constant value identified (byte*)points#1 in [4] *((const byte*) main::SCREEN#0 + (byte) 3) ← *((byte*)(const struct Point*) points#1 + (const byte) OFFSET_STRUCT_POINT_Y)
|
|
Successful SSA optimization Pass2ConstantValues
|
|
Inlining constant with different constant siblings (const struct Point*) points#0
|
|
Inlining constant with different constant siblings (const struct Point*) points#1
|
|
Constant inlined points#0 = (struct Point*) 4096
|
|
Constant inlined points#1 = (struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT
|
|
Successful SSA optimization Pass2ConstantInlining
|
|
Consolidated array index constant in *((byte*)(struct Point*) 4096+OFFSET_STRUCT_POINT_Y)
|
|
Consolidated array index constant in *(main::SCREEN#0+1)
|
|
Consolidated array index constant in *(main::SCREEN#0+2)
|
|
Consolidated array index constant in *((byte*)(struct Point*) 4096+SIZEOF_STRUCT_POINT+OFFSET_STRUCT_POINT_Y)
|
|
Consolidated array index constant in *(main::SCREEN#0+3)
|
|
Successful SSA optimization Pass2ConstantAdditionElimination
|
|
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
|
|
CALL GRAPH
|
|
Calls in [] to main:2
|
|
|
|
Created 0 initial phi equivalence classes
|
|
Coalesced down to 0 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
|
|
|
|
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()
|
|
main: scope:[main] from @1
|
|
[4] *((const byte*) main::SCREEN#0) ← *((byte*)(struct Point*) 4096)
|
|
[5] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(struct Point*) 4096+(const byte) OFFSET_STRUCT_POINT_Y)
|
|
[6] *((const byte*) main::SCREEN#0+(byte) 2) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT)
|
|
[7] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT+(const byte) OFFSET_STRUCT_POINT_Y)
|
|
to:main::@return
|
|
main::@return: scope:[main] from main
|
|
[8] return
|
|
to:@return
|
|
|
|
|
|
VARIABLE REGISTER WEIGHTS
|
|
(byte) Point::x
|
|
(byte) Point::y
|
|
(void()) main()
|
|
(byte*) main::SCREEN
|
|
(struct Point*) points
|
|
|
|
Initial phi equivalence classes
|
|
Complete equivalence classes
|
|
|
|
INITIAL ASM
|
|
Target platform is c64basic / MOS6502X
|
|
// File Comments
|
|
// Minimal struct - accessing pointer to struct in memory
|
|
// Upstart
|
|
.pc = $801 "Basic"
|
|
:BasicUpstart(bbegin)
|
|
.pc = $80d "Program"
|
|
// Global Constants & labels
|
|
.const SIZEOF_STRUCT_POINT = 2
|
|
.const OFFSET_STRUCT_POINT_Y = 1
|
|
// @begin
|
|
bbegin:
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
|
b1_from_bbegin:
|
|
jmp b1
|
|
// @1
|
|
b1:
|
|
// [2] call main
|
|
jsr main
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
|
bend_from_b1:
|
|
jmp bend
|
|
// @end
|
|
bend:
|
|
// main
|
|
main: {
|
|
.label SCREEN = $400
|
|
// [4] *((const byte*) main::SCREEN#0) ← *((byte*)(struct Point*) 4096) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000
|
|
sta SCREEN
|
|
// [5] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(struct Point*) 4096+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+OFFSET_STRUCT_POINT_Y
|
|
sta SCREEN+1
|
|
// [6] *((const byte*) main::SCREEN#0+(byte) 2) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+SIZEOF_STRUCT_POINT
|
|
sta SCREEN+2
|
|
// [7] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+SIZEOF_STRUCT_POINT+OFFSET_STRUCT_POINT_Y
|
|
sta SCREEN+3
|
|
jmp breturn
|
|
// main::@return
|
|
breturn:
|
|
// [8] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
|
Statement [4] *((const byte*) main::SCREEN#0) ← *((byte*)(struct Point*) 4096) [ ] ( main:2 [ ] ) always clobbers reg byte a
|
|
Statement [5] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(struct Point*) 4096+(const byte) OFFSET_STRUCT_POINT_Y) [ ] ( main:2 [ ] ) always clobbers reg byte a
|
|
Statement [6] *((const byte*) main::SCREEN#0+(byte) 2) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT) [ ] ( main:2 [ ] ) always clobbers reg byte a
|
|
Statement [7] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT+(const byte) OFFSET_STRUCT_POINT_Y) [ ] ( main:2 [ ] ) always clobbers reg byte a
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
Uplift Scope [Point]
|
|
Uplift Scope [main]
|
|
Uplift Scope []
|
|
|
|
Uplifting [Point] best 53 combination
|
|
Uplifting [main] best 53 combination
|
|
Uplifting [] best 53 combination
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
|
// File Comments
|
|
// Minimal struct - accessing pointer to struct in memory
|
|
// Upstart
|
|
.pc = $801 "Basic"
|
|
:BasicUpstart(bbegin)
|
|
.pc = $80d "Program"
|
|
// Global Constants & labels
|
|
.const SIZEOF_STRUCT_POINT = 2
|
|
.const OFFSET_STRUCT_POINT_Y = 1
|
|
// @begin
|
|
bbegin:
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
|
b1_from_bbegin:
|
|
jmp b1
|
|
// @1
|
|
b1:
|
|
// [2] call main
|
|
jsr main
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
|
bend_from_b1:
|
|
jmp bend
|
|
// @end
|
|
bend:
|
|
// main
|
|
main: {
|
|
.label SCREEN = $400
|
|
// [4] *((const byte*) main::SCREEN#0) ← *((byte*)(struct Point*) 4096) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000
|
|
sta SCREEN
|
|
// [5] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(struct Point*) 4096+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+OFFSET_STRUCT_POINT_Y
|
|
sta SCREEN+1
|
|
// [6] *((const byte*) main::SCREEN#0+(byte) 2) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+SIZEOF_STRUCT_POINT
|
|
sta SCREEN+2
|
|
// [7] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+SIZEOF_STRUCT_POINT+OFFSET_STRUCT_POINT_Y
|
|
sta SCREEN+3
|
|
jmp breturn
|
|
// main::@return
|
|
breturn:
|
|
// [8] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
Removing instruction jmp b1
|
|
Removing instruction jmp bend
|
|
Removing instruction jmp breturn
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Removing instruction b1_from_bbegin:
|
|
Removing instruction b1:
|
|
Removing instruction bend_from_b1:
|
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
|
Removing instruction bend:
|
|
Removing instruction breturn:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
Updating BasicUpstart to call main directly
|
|
Removing instruction jsr main
|
|
Succesful ASM optimization Pass5SkipBegin
|
|
Removing instruction bbegin:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
|
|
FINAL SYMBOL TABLE
|
|
(label) @1
|
|
(label) @begin
|
|
(label) @end
|
|
(const byte) OFFSET_STRUCT_POINT_Y OFFSET_STRUCT_POINT_Y = (byte) 1
|
|
(byte) Point::x
|
|
(byte) Point::y
|
|
(const byte) SIZEOF_STRUCT_POINT SIZEOF_STRUCT_POINT = (byte) 2
|
|
(void()) main()
|
|
(label) main::@return
|
|
(byte*) main::SCREEN
|
|
(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
|
|
(struct Point*) points
|
|
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 38
|
|
|
|
// File Comments
|
|
// Minimal struct - accessing pointer to struct in memory
|
|
// Upstart
|
|
.pc = $801 "Basic"
|
|
:BasicUpstart(main)
|
|
.pc = $80d "Program"
|
|
// Global Constants & labels
|
|
.const SIZEOF_STRUCT_POINT = 2
|
|
.const OFFSET_STRUCT_POINT_Y = 1
|
|
// @begin
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
|
// @1
|
|
// [2] call main
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
|
// @end
|
|
// main
|
|
main: {
|
|
.label SCREEN = $400
|
|
// SCREEN[0] = (*points).x
|
|
// [4] *((const byte*) main::SCREEN#0) ← *((byte*)(struct Point*) 4096) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000
|
|
sta SCREEN
|
|
// SCREEN[1] = (*points).y
|
|
// [5] *((const byte*) main::SCREEN#0+(byte) 1) ← *((byte*)(struct Point*) 4096+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+OFFSET_STRUCT_POINT_Y
|
|
sta SCREEN+1
|
|
// SCREEN[2] = (*points).x
|
|
// [6] *((const byte*) main::SCREEN#0+(byte) 2) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+SIZEOF_STRUCT_POINT
|
|
sta SCREEN+2
|
|
// SCREEN[3] = (*points).y
|
|
// [7] *((const byte*) main::SCREEN#0+(byte) 3) ← *((byte*)(struct Point*) 4096+(const byte) SIZEOF_STRUCT_POINT+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
lda $1000+SIZEOF_STRUCT_POINT+OFFSET_STRUCT_POINT_Y
|
|
sta SCREEN+3
|
|
// main::@return
|
|
// }
|
|
// [8] return
|
|
rts
|
|
}
|
|
// File Data
|
|
|