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Fixed switch test
This commit is contained in:
jespergravgaard
parent
a78ecc0e42
commit
2de0744639
@ -1,12 +1,11 @@
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// Tests simple switch()-statement - including a continue statement for the enclosing loop
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// Tests simple switch()-statement - not inside a loop
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void main() {
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char* SCREEN = 0x0400;
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char b=0;
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char v64 = 0;
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switch(v64){
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case 0: b = 1; break;
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default:
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case 0: b = 1;
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}
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SCREEN[0] = b;
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}
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11
src/test/ref/switch-2.asm
Normal file
11
src/test/ref/switch-2.asm
Normal file
@ -0,0 +1,11 @@
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// Tests simple switch()-statement - not inside a loop
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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main: {
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.label SCREEN = $400
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.const b = 1
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lda #b
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sta SCREEN
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rts
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}
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18
src/test/ref/switch-2.cfg
Normal file
18
src/test/ref/switch-2.cfg
Normal file
@ -0,0 +1,18 @@
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@begin: scope:[] from
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[0] phi()
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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main: scope:[main] from @1
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[4] phi()
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to:main::@1
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main::@1: scope:[main] from main
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[5] *((const byte*) main::SCREEN#0) ← (const byte) main::b#1
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to:main::@return
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main::@return: scope:[main] from main::@1
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[6] return
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to:@return
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303
src/test/ref/switch-2.log
Normal file
303
src/test/ref/switch-2.log
Normal file
@ -0,0 +1,303 @@
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Identified constant variable (byte*) main::SCREEN
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Identified constant variable (byte) main::v64
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Culled Empty Block (label) main::@1
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Culled Empty Block (label) main::@2
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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to:@1
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main: scope:[main] from @1
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(byte*) main::SCREEN#0 ← ((byte*)) (number) $400
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(byte) main::b#0 ← (number) 0
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(byte) main::v64#0 ← (number) 0
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if((byte) main::v64#0==(number) 0) goto main::@3
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to:main::@4
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main::@3: scope:[main] from main
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(byte) main::b#1 ← (number) 1
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to:main::@4
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main::@4: scope:[main] from main main::@3
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(byte) main::b#2 ← phi( main/(byte) main::b#0 main::@3/(byte) main::b#1 )
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*((byte*) main::SCREEN#0 + (number) 0) ← (byte) main::b#2
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to:main::@return
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main::@return: scope:[main] from main::@4
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return
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to:@return
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@1: scope:[] from @begin
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call main
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to:@2
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@2: scope:[] from @1
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to:@end
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@end: scope:[] from @2
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SYMBOL TABLE SSA
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(label) @1
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(label) @2
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(label) @begin
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(label) @end
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(void()) main()
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(label) main::@3
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(label) main::@4
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(label) main::@return
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(byte*) main::SCREEN
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(byte*) main::SCREEN#0
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(byte) main::b
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(byte) main::b#0
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(byte) main::b#1
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(byte) main::b#2
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(byte) main::v64
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(byte) main::v64#0
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Adding number conversion cast (unumber) 0 in (byte) main::b#0 ← (number) 0
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Adding number conversion cast (unumber) 0 in (byte) main::v64#0 ← (number) 0
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Adding number conversion cast (unumber) 0 in if((byte) main::v64#0==(number) 0) goto main::@3
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Adding number conversion cast (unumber) 1 in (byte) main::b#1 ← (number) 1
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Adding number conversion cast (unumber) 0 in *((byte*) main::SCREEN#0 + (number) 0) ← (byte) main::b#2
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Successful SSA optimization PassNAddNumberTypeConversions
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Inlining cast (byte*) main::SCREEN#0 ← (byte*)(number) $400
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Inlining cast (byte) main::b#0 ← (unumber)(number) 0
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Inlining cast (byte) main::v64#0 ← (unumber)(number) 0
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Inlining cast (byte) main::b#1 ← (unumber)(number) 1
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Successful SSA optimization Pass2InlineCast
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Simplifying constant pointer cast (byte*) 1024
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Simplifying constant integer cast 0
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Simplifying constant integer cast 0
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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 0
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 0
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Finalized unsigned number type (byte) 0
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Finalized unsigned number type (byte) 0
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) 0
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Negating conditional jump and destination [3] if((byte) main::v64#0!=(byte) 0) goto main::@4
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Successful SSA optimization Pass2ConditionalJumpSequenceImprovement
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Constant (const byte*) main::SCREEN#0 = (byte*) 1024
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Constant (const byte) main::b#0 = 0
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Constant (const byte) main::v64#0 = 0
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Constant (const byte) main::b#1 = 1
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Successful SSA optimization Pass2ConstantIdentification
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Removing PHI-reference to removed block (main) in block main::@4
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if() condition always false - eliminating [3] if((const byte) main::v64#0!=(byte) 0) goto main::@4
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Successful SSA optimization Pass2ConstantIfs
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Simplifying expression containing zero main::SCREEN#0 in [6] *((const byte*) main::SCREEN#0 + (byte) 0) ← (byte) main::b#2
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Successful SSA optimization PassNSimplifyExpressionWithZero
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Eliminating unused constant (const byte) main::b#0
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Eliminating unused constant (const byte) main::v64#0
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Successful SSA optimization PassNEliminateUnusedVars
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Identical Phi Values (byte) main::b#2 (const byte) main::b#1
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Successful SSA optimization Pass2IdenticalPhiElimination
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @2
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main
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Adding NOP phi() at start of main::@3
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CALL GRAPH
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Calls in [] to main:2
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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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Culled Empty Block (label) @2
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Culled Empty Block (label) main::@3
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Renumbering block main::@4 to main::@1
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Adding NOP phi() at start of @begin
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main
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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] phi()
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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main: scope:[main] from @1
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[4] phi()
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to:main::@1
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main::@1: scope:[main] from main
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[5] *((const byte*) main::SCREEN#0) ← (const byte) main::b#1
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to:main::@return
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main::@return: scope:[main] from main::@1
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[6] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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(void()) main()
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(byte*) main::SCREEN
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(byte) main::b
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(byte) main::v64
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Initial phi equivalence classes
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Complete equivalence classes
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INITIAL ASM
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Target platform is c64basic
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// File Comments
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// Tests simple switch()-statement - not inside a loop
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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// @begin
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bbegin:
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// [1] phi from @begin to @1 [phi:@begin->@1]
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b1_from_bbegin:
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jmp b1
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// @1
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b1:
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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main_from_b1:
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jsr main
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// [3] phi from @1 to @end [phi:@1->@end]
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bend_from_b1:
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jmp bend
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// @end
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bend:
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// main
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main: {
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.label SCREEN = $400
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.const b = 1
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jmp b1
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// main::@1
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b1:
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// [5] *((const byte*) main::SCREEN#0) ← (const byte) main::b#1 -- _deref_pbuc1=vbuc2
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lda #b
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sta SCREEN
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jmp breturn
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// main::@return
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breturn:
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// [6] return
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rts
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}
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// File Data
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [5] *((const byte*) main::SCREEN#0) ← (const byte) main::b#1 [ ] ( main:2 [ ] ) always clobbers reg byte a
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REGISTER UPLIFT SCOPES
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Uplift Scope [main]
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Uplift Scope []
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Uplifting [main] best 57 combination
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Uplifting [] best 57 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Tests simple switch()-statement - not inside a loop
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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// @begin
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bbegin:
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// [1] phi from @begin to @1 [phi:@begin->@1]
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b1_from_bbegin:
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jmp b1
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// @1
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b1:
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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main_from_b1:
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jsr main
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// [3] phi from @1 to @end [phi:@1->@end]
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bend_from_b1:
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jmp bend
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// @end
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bend:
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// main
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main: {
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.label SCREEN = $400
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.const b = 1
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jmp b1
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// main::@1
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b1:
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// [5] *((const byte*) main::SCREEN#0) ← (const byte) main::b#1 -- _deref_pbuc1=vbuc2
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lda #b
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sta SCREEN
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jmp breturn
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// main::@return
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breturn:
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// [6] return
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rts
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}
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// File Data
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ASSEMBLER OPTIMIZATIONS
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Removing instruction jmp b1
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Removing instruction jmp bend
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Removing instruction jmp b1
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Removing instruction jmp breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction b1_from_bbegin:
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Removing instruction b1:
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Removing instruction main_from_b1:
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Removing instruction bend_from_b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction bend:
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Removing instruction b1:
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Removing instruction breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Updating BasicUpstart to call main directly
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Removing instruction jsr main
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Succesful ASM optimization Pass5SkipBegin
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Removing instruction bbegin:
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Succesful ASM optimization Pass5UnusedLabelElimination
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FINAL SYMBOL TABLE
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(label) @1
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(label) @begin
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(label) @end
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(void()) main()
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(label) main::@1
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(label) main::@return
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(byte*) main::SCREEN
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(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
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(byte) main::b
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(const byte) main::b#1 b = (byte) 1
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(byte) main::v64
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FINAL ASSEMBLER
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Score: 12
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// File Comments
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// Tests simple switch()-statement - not inside a loop
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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// Global Constants & labels
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// @begin
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// [1] phi from @begin to @1 [phi:@begin->@1]
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// @1
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// [2] call main
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// [4] phi from @1 to main [phi:@1->main]
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// [3] phi from @1 to @end [phi:@1->@end]
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// @end
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// main
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main: {
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.label SCREEN = $400
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.const b = 1
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// main::@1
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// SCREEN[0] = b
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// [5] *((const byte*) main::SCREEN#0) ← (const byte) main::b#1 -- _deref_pbuc1=vbuc2
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lda #b
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sta SCREEN
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// main::@return
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// }
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// [6] return
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rts
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}
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// File Data
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12
src/test/ref/switch-2.sym
Normal file
12
src/test/ref/switch-2.sym
Normal file
@ -0,0 +1,12 @@
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(label) @1
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(label) @begin
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(label) @end
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(void()) main()
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(label) main::@1
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(label) main::@return
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(byte*) main::SCREEN
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(const byte*) main::SCREEN#0 SCREEN = (byte*) 1024
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(byte) main::b
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(const byte) main::b#1 b = (byte) 1
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(byte) main::v64
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