mirror of
https://gitlab.com/camelot/kickc.git
synced 2025-04-07 06:37:31 +00:00
Added a few fragments - and some tests illustrating certain problems.
This commit is contained in:
jespergravgaard
parent
3c12acbb43
commit
55b7dfdf91
@ -0,0 +1,9 @@
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lda {c2}
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sta $fe
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lda {c2}+1
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sta $ff
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lda ($fe),y
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sta {c1},y
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iny
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lda ($fe),y
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sta {c1},y
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@ -0,0 +1,5 @@
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lda {c1}
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sta !+ +1
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lda {c1}+1
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sta !+ +2
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!: lda {c1},x
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@ -0,0 +1,5 @@
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lda {c1}
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sta !+ +1
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lda {c1}+1
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sta !+ +2
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!: lda {c1},y
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@ -36,6 +36,11 @@ public class TestPrograms {
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public TestPrograms() {
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}
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@Test
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public void testCodeAfterReturn() throws IOException, URISyntaxException {
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compileAndCompare("code-after-return",log());
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}
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@Test
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public void testStringEscapesErr1() throws IOException, URISyntaxException {
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assertError("string-escapes-err-1", "Illegal string escape sequence");
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@ -416,6 +421,12 @@ public class TestPrograms {
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compileAndCompare("enum-0");
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}
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// TODO: Fix https://gitlab.com/camelot/kickc/issues/269
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//@Test
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//public void testTypedef2() throws IOException, URISyntaxException {
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// compileAndCompare("typedef-2");
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//}
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@Test
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public void testTypedef1() throws IOException, URISyntaxException {
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compileAndCompare("typedef-1");
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@ -481,6 +492,16 @@ public class TestPrograms {
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}
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*/
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@Test
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public void testStructPtr21() throws IOException, URISyntaxException {
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compileAndCompare("struct-ptr-21");
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}
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@Test
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public void testStructPtr20() throws IOException, URISyntaxException {
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compileAndCompare("struct-ptr-20");
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}
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@Test
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public void testStructPtr19() throws IOException, URISyntaxException {
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compileAndCompare("struct-ptr-19");
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@ -1351,6 +1372,11 @@ public class TestPrograms {
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compileAndCompare("loop-break-continue");
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}
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@Test
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public void testLoopForEmptyBody() throws IOException, URISyntaxException {
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compileAndCompare("loop-for-empty-body");
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}
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@Test
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public void testLoopForContinue() throws IOException, URISyntaxException {
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compileAndCompare("loop-for-continue");
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9
src/test/kc/code-after-return.kc
Normal file
9
src/test/kc/code-after-return.kc
Normal file
@ -0,0 +1,9 @@
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// Test code after return in main()
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const char* SCREEN = 0x0400;
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void main() {
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SCREEN[0] = 'a';
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return;
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SCREEN[1] = 'a';
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}
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10
src/test/kc/loop-for-empty-body.kc
Normal file
10
src/test/kc/loop-for-empty-body.kc
Normal file
@ -0,0 +1,10 @@
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// Test a for-loop with an empty body
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const char[] str = "Hello!";
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const char* SCREEN = 0x0400;
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void main() {
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char b = 0;
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for (; str[b] != 0; ++b) {} // Empty body
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SCREEN[0] = '0'+b;
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}
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25
src/test/kc/struct-ptr-20.kc
Normal file
25
src/test/kc/struct-ptr-20.kc
Normal file
@ -0,0 +1,25 @@
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// Demonstrates problem with conditions using negated struct references
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const char* SCREEN = 0x0400;
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struct Setting {
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char off;
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char id;
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};
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const struct Setting[] settings = {
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{ 0, 'a' },
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{ 1, 'b' },
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{ 0, 'c' }
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};
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void main() {
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char idx = 0;
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char len = sizeof(settings)/sizeof(struct Setting);
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for(struct Setting* setting = settings; setting<settings+len; setting++) {
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if (! setting->off) {
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SCREEN[idx++] = setting->id;
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}
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}
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}
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22
src/test/kc/struct-ptr-21.kc
Normal file
22
src/test/kc/struct-ptr-21.kc
Normal file
@ -0,0 +1,22 @@
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// Demonstrates problem with conditions using negated struct references
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const unsigned int* SCREEN = 0x0400;
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struct Setting {
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char len;
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unsigned int* buf;
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};
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unsigned int[] seq = { 1, 2, 3 };
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struct Setting[] settings = { { 3, &seq[0] } };
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void main() {
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struct Setting *setting = &settings[0];
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char idx = 0;
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for( char i=0;i<setting->len;i++) {
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SCREEN[i] = setting->buf[i];
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}
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}
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12
src/test/kc/typedef-2.kc
Normal file
12
src/test/kc/typedef-2.kc
Normal file
@ -0,0 +1,12 @@
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typedef unsigned int WORD;
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const char* SCREEN = 0x0400;
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char* ptr = 0x1000;
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void main() {
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WORD w = (WORD)&ptr;
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w += 50;
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SCREEN[0] = <w;
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}
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10
src/test/ref/code-after-return.asm
Normal file
10
src/test/ref/code-after-return.asm
Normal file
@ -0,0 +1,10 @@
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// Test code after return in main()
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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.label SCREEN = $400
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main: {
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lda #'a'
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sta SCREEN
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rts
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}
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15
src/test/ref/code-after-return.cfg
Normal file
15
src/test/ref/code-after-return.cfg
Normal file
@ -0,0 +1,15 @@
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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] *((const byte*) SCREEN#0) ← (byte) 'a'
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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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231
src/test/ref/code-after-return.log
Normal file
231
src/test/ref/code-after-return.log
Normal file
@ -0,0 +1,231 @@
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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(byte*) SCREEN#0 ← ((byte*)) (number) $400
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to:@1
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main: scope:[main] from @1
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*((byte*) SCREEN#0 + (number) 0) ← (byte) 'a'
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to:main::@return
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main::@return: scope:[main] from main main::@1
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return
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to:@return
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main::@1: scope:[main] from
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*((byte*) SCREEN#0 + (number) 1) ← (byte) 'a'
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to:main::@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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(byte*) SCREEN
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(byte*) SCREEN#0
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(void()) main()
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(label) main::@1
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(label) main::@return
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Adding number conversion cast (unumber) 0 in *((byte*) SCREEN#0 + (number) 0) ← (byte) 'a'
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Adding number conversion cast (unumber) 1 in *((byte*) SCREEN#0 + (number) 1) ← (byte) 'a'
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Successful SSA optimization PassNAddNumberTypeConversions
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Inlining cast (byte*) SCREEN#0 ← (byte*)(number) $400
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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 1
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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) 1
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Constant (const byte*) SCREEN#0 = (byte*) 1024
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Successful SSA optimization Pass2ConstantIdentification
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Simplifying expression containing zero SCREEN#0 in [1] *((const byte*) SCREEN#0 + (byte) 0) ← (byte) 'a'
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Successful SSA optimization PassNSimplifyExpressionWithZero
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Removing unused block main::@1
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Successful SSA optimization Pass2EliminateUnusedBlocks
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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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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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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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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] *((const byte*) SCREEN#0) ← (byte) 'a'
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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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(byte*) SCREEN
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(void()) main()
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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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// Test code after return in main()
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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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.label SCREEN = $400
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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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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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// [4] *((const byte*) SCREEN#0) ← (byte) 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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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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// [5] 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 [4] *((const byte*) SCREEN#0) ← (byte) 'a' [ ] ( 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 27 combination
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Uplifting [] best 27 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Test code after return in main()
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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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.label SCREEN = $400
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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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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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// [4] *((const byte*) SCREEN#0) ← (byte) 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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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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// [5] 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 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 bend_from_b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction bend:
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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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(byte*) SCREEN
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(const byte*) SCREEN#0 SCREEN = (byte*) 1024
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(void()) main()
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(label) main::@return
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FINAL ASSEMBLER
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Score: 12
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// File Comments
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// Test code after return in main()
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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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.label SCREEN = $400
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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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// [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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// SCREEN[0] = 'a'
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// [4] *((const byte*) SCREEN#0) ← (byte) 'a' -- _deref_pbuc1=vbuc2
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lda #'a'
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sta SCREEN
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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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|
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8
src/test/ref/code-after-return.sym
Normal file
8
src/test/ref/code-after-return.sym
Normal file
@ -0,0 +1,8 @@
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(label) @1
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(label) @begin
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(label) @end
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(byte*) SCREEN
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(const byte*) SCREEN#0 SCREEN = (byte*) 1024
|
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(void()) main()
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(label) main::@return
|
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|
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22
src/test/ref/loop-for-empty-body.asm
Normal file
22
src/test/ref/loop-for-empty-body.asm
Normal file
@ -0,0 +1,22 @@
|
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// Test a for-loop with an empty body
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.pc = $801 "Basic"
|
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:BasicUpstart(main)
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.pc = $80d "Program"
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.label SCREEN = $400
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main: {
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ldx #0
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b1:
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lda str,x
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cmp #0
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bne b2
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txa
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axs #-['0']
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// Empty body
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stx SCREEN
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rts
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b2:
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inx
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jmp b1
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}
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str: .text "Hello!"
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.byte 0
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26
src/test/ref/loop-for-empty-body.cfg
Normal file
26
src/test/ref/loop-for-empty-body.cfg
Normal file
@ -0,0 +1,26 @@
|
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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 main::@2
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[5] (byte) main::b#2 ← phi( main/(byte) 0 main::@2/(byte) main::b#1 )
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[6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2
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to:main::@3
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main::@3: scope:[main] from main::@1
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[7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2
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[8] *((const byte*) SCREEN#0) ← (byte~) main::$0
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to:main::@return
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main::@return: scope:[main] from main::@3
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[9] return
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to:@return
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main::@2: scope:[main] from main::@1
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[10] (byte) main::b#1 ← ++ (byte) main::b#2
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to:main::@1
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409
src/test/ref/loop-for-empty-body.log
Normal file
409
src/test/ref/loop-for-empty-body.log
Normal file
@ -0,0 +1,409 @@
|
||||
Culled Empty Block (label) main::@4
|
||||
Culled Empty Block (label) main::@5
|
||||
Culled Empty Block (label) main::@6
|
||||
|
||||
CONTROL FLOW GRAPH SSA
|
||||
@begin: scope:[] from
|
||||
(byte[]) str#0 ← (const string) $0
|
||||
(byte*) SCREEN#0 ← ((byte*)) (number) $400
|
||||
to:@1
|
||||
main: scope:[main] from @1
|
||||
(byte) main::b#0 ← (number) 0
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@2
|
||||
(byte) main::b#2 ← phi( main/(byte) main::b#0 main::@2/(byte) main::b#1 )
|
||||
(bool~) main::$1 ← *((byte[]) str#0 + (byte) main::b#2) != (number) 0
|
||||
if((bool~) main::$1) goto main::@2
|
||||
to:main::@3
|
||||
main::@2: scope:[main] from main::@1
|
||||
(byte) main::b#3 ← phi( main::@1/(byte) main::b#2 )
|
||||
(byte) main::b#1 ← ++ (byte) main::b#3
|
||||
to:main::@1
|
||||
main::@3: scope:[main] from main::@1
|
||||
(byte) main::b#4 ← phi( main::@1/(byte) main::b#2 )
|
||||
(byte~) main::$0 ← (byte) '0' + (byte) main::b#4
|
||||
*((byte*) SCREEN#0 + (number) 0) ← (byte~) main::$0
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@3
|
||||
return
|
||||
to:@return
|
||||
@1: scope:[] from @begin
|
||||
call main
|
||||
to:@2
|
||||
@2: scope:[] from @1
|
||||
to:@end
|
||||
@end: scope:[] from @2
|
||||
|
||||
SYMBOL TABLE SSA
|
||||
(const string) $0 = (string) "Hello!"
|
||||
(label) @1
|
||||
(label) @2
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(byte*) SCREEN
|
||||
(byte*) SCREEN#0
|
||||
(void()) main()
|
||||
(byte~) main::$0
|
||||
(bool~) main::$1
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@return
|
||||
(byte) main::b
|
||||
(byte) main::b#0
|
||||
(byte) main::b#1
|
||||
(byte) main::b#2
|
||||
(byte) main::b#3
|
||||
(byte) main::b#4
|
||||
(byte[]) str
|
||||
(byte[]) str#0
|
||||
|
||||
Adding number conversion cast (unumber) 0 in (byte) main::b#0 ← (number) 0
|
||||
Adding number conversion cast (unumber) 0 in (bool~) main::$1 ← *((byte[]) str#0 + (byte) main::b#2) != (number) 0
|
||||
Adding number conversion cast (unumber) 0 in *((byte*) SCREEN#0 + (number) 0) ← (byte~) main::$0
|
||||
Successful SSA optimization PassNAddNumberTypeConversions
|
||||
Inlining cast (byte*) SCREEN#0 ← (byte*)(number) $400
|
||||
Inlining cast (byte) main::b#0 ← (unumber)(number) 0
|
||||
Successful SSA optimization Pass2InlineCast
|
||||
Simplifying constant pointer cast (byte*) 1024
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 0
|
||||
Successful SSA optimization PassNCastSimplification
|
||||
Finalized unsigned number type (byte) 0
|
||||
Finalized unsigned number type (byte) 0
|
||||
Finalized unsigned number type (byte) 0
|
||||
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
||||
Alias (byte) main::b#2 = (byte) main::b#3 (byte) main::b#4
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Simple Condition (bool~) main::$1 [5] if(*((byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2
|
||||
Successful SSA optimization Pass2ConditionalJumpSimplification
|
||||
Constant (const byte[]) str#0 = $0
|
||||
Constant (const byte*) SCREEN#0 = (byte*) 1024
|
||||
Constant (const byte) main::b#0 = 0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Simplifying expression containing zero SCREEN#0 in [10] *((const byte*) SCREEN#0 + (byte) 0) ← (byte~) main::$0
|
||||
Successful SSA optimization PassNSimplifyExpressionWithZero
|
||||
Inlining constant with var siblings (const byte) main::b#0
|
||||
Constant inlined $0 = (const byte[]) str#0
|
||||
Constant inlined main::b#0 = (byte) 0
|
||||
Successful SSA optimization Pass2ConstantInlining
|
||||
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
|
||||
Adding NOP phi() at start of main
|
||||
CALL GRAPH
|
||||
Calls in [] to main:2
|
||||
|
||||
Created 1 initial phi equivalence classes
|
||||
Coalesced [12] main::b#5 ← main::b#1
|
||||
Coalesced down to 1 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
|
||||
Adding NOP phi() at start of main
|
||||
|
||||
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] phi()
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@2
|
||||
[5] (byte) main::b#2 ← phi( main/(byte) 0 main::@2/(byte) main::b#1 )
|
||||
[6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2
|
||||
to:main::@3
|
||||
main::@3: scope:[main] from main::@1
|
||||
[7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2
|
||||
[8] *((const byte*) SCREEN#0) ← (byte~) main::$0
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@3
|
||||
[9] return
|
||||
to:@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
[10] (byte) main::b#1 ← ++ (byte) main::b#2
|
||||
to:main::@1
|
||||
|
||||
|
||||
VARIABLE REGISTER WEIGHTS
|
||||
(byte*) SCREEN
|
||||
(void()) main()
|
||||
(byte~) main::$0 4.0
|
||||
(byte) main::b
|
||||
(byte) main::b#1 22.0
|
||||
(byte) main::b#2 17.5
|
||||
(byte[]) str
|
||||
|
||||
Initial phi equivalence classes
|
||||
[ main::b#2 main::b#1 ]
|
||||
Added variable main::$0 to zero page equivalence class [ main::$0 ]
|
||||
Complete equivalence classes
|
||||
[ main::b#2 main::b#1 ]
|
||||
[ main::$0 ]
|
||||
Allocated zp ZP_BYTE:2 [ main::b#2 main::b#1 ]
|
||||
Allocated zp ZP_BYTE:3 [ main::$0 ]
|
||||
|
||||
INITIAL ASM
|
||||
Target platform is c64basic
|
||||
// File Comments
|
||||
// Test a for-loop with an empty body
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
.label _0 = 3
|
||||
.label b = 2
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
b1_from_main:
|
||||
// [5] phi (byte) main::b#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
||||
lda #0
|
||||
sta.z b
|
||||
jmp b1
|
||||
// main::@1
|
||||
b1:
|
||||
// [6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2 -- pbuc1_derefidx_vbuz1_neq_0_then_la1
|
||||
ldy.z b
|
||||
lda str,y
|
||||
cmp #0
|
||||
bne b2
|
||||
jmp b3
|
||||
// main::@3
|
||||
b3:
|
||||
// [7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2 -- vbuz1=vbuc1_plus_vbuz2
|
||||
lax.z b
|
||||
axs #-['0']
|
||||
stx.z _0
|
||||
// [8] *((const byte*) SCREEN#0) ← (byte~) main::$0 -- _deref_pbuc1=vbuz1
|
||||
// Empty body
|
||||
lda.z _0
|
||||
sta SCREEN
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [9] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// [10] (byte) main::b#1 ← ++ (byte) main::b#2 -- vbuz1=_inc_vbuz1
|
||||
inc.z b
|
||||
// [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
||||
b1_from_b2:
|
||||
// [5] phi (byte) main::b#2 = (byte) main::b#1 [phi:main::@2->main::@1#0] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
str: .text "Hello!"
|
||||
.byte 0
|
||||
|
||||
REGISTER UPLIFT POTENTIAL REGISTERS
|
||||
Statement [6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2 [ main::b#2 ] ( main:2 [ main::b#2 ] ) always clobbers reg byte a
|
||||
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::b#2 main::b#1 ]
|
||||
Statement [7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2 [ main::$0 ] ( main:2 [ main::$0 ] ) always clobbers reg byte a
|
||||
Statement [6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2 [ main::b#2 ] ( main:2 [ main::b#2 ] ) always clobbers reg byte a
|
||||
Statement [7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2 [ main::$0 ] ( main:2 [ main::$0 ] ) always clobbers reg byte a
|
||||
Potential registers zp ZP_BYTE:2 [ main::b#2 main::b#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y ,
|
||||
Potential registers zp ZP_BYTE:3 [ main::$0 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y ,
|
||||
|
||||
REGISTER UPLIFT SCOPES
|
||||
Uplift Scope [main] 39.5: zp ZP_BYTE:2 [ main::b#2 main::b#1 ] 4: zp ZP_BYTE:3 [ main::$0 ]
|
||||
Uplift Scope []
|
||||
|
||||
Uplifting [main] best 249 combination reg byte x [ main::b#2 main::b#1 ] reg byte x [ main::$0 ]
|
||||
Uplifting [] best 249 combination
|
||||
|
||||
ASSEMBLER BEFORE OPTIMIZATION
|
||||
// File Comments
|
||||
// Test a for-loop with an empty body
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
b1_from_main:
|
||||
// [5] phi (byte) main::b#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
jmp b1
|
||||
// main::@1
|
||||
b1:
|
||||
// [6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2 -- pbuc1_derefidx_vbuxx_neq_0_then_la1
|
||||
lda str,x
|
||||
cmp #0
|
||||
bne b2
|
||||
jmp b3
|
||||
// main::@3
|
||||
b3:
|
||||
// [7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2 -- vbuxx=vbuc1_plus_vbuxx
|
||||
txa
|
||||
axs #-['0']
|
||||
// [8] *((const byte*) SCREEN#0) ← (byte~) main::$0 -- _deref_pbuc1=vbuxx
|
||||
// Empty body
|
||||
stx SCREEN
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [9] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// [10] (byte) main::b#1 ← ++ (byte) main::b#2 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
||||
b1_from_b2:
|
||||
// [5] phi (byte) main::b#2 = (byte) main::b#1 [phi:main::@2->main::@1#0] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
str: .text "Hello!"
|
||||
.byte 0
|
||||
|
||||
ASSEMBLER OPTIMIZATIONS
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp bend
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp b3
|
||||
Removing instruction jmp breturn
|
||||
Succesful ASM optimization Pass5NextJumpElimination
|
||||
Removing instruction b1_from_bbegin:
|
||||
Removing instruction b1:
|
||||
Removing instruction main_from_b1:
|
||||
Removing instruction bend_from_b1:
|
||||
Succesful ASM optimization Pass5RedundantLabelElimination
|
||||
Removing instruction bend:
|
||||
Removing instruction b1_from_main:
|
||||
Removing instruction b3:
|
||||
Removing instruction breturn:
|
||||
Removing instruction b1_from_b2:
|
||||
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
|
||||
(byte*) SCREEN
|
||||
(const byte*) SCREEN#0 SCREEN = (byte*) 1024
|
||||
(void()) main()
|
||||
(byte~) main::$0 reg byte x 4.0
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@return
|
||||
(byte) main::b
|
||||
(byte) main::b#1 reg byte x 22.0
|
||||
(byte) main::b#2 reg byte x 17.5
|
||||
(byte[]) str
|
||||
(const byte[]) str#0 str = (string) "Hello!"
|
||||
|
||||
reg byte x [ main::b#2 main::b#1 ]
|
||||
reg byte x [ main::$0 ]
|
||||
|
||||
|
||||
FINAL ASSEMBLER
|
||||
Score: 174
|
||||
|
||||
// File Comments
|
||||
// Test a for-loop with an empty body
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(main)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
// @1
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
// @end
|
||||
// main
|
||||
main: {
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
// [5] phi (byte) main::b#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
// main::@1
|
||||
b1:
|
||||
// for (; str[b] != 0; ++b)
|
||||
// [6] if(*((const byte[]) str#0 + (byte) main::b#2)!=(byte) 0) goto main::@2 -- pbuc1_derefidx_vbuxx_neq_0_then_la1
|
||||
lda str,x
|
||||
cmp #0
|
||||
bne b2
|
||||
// main::@3
|
||||
// '0'+b
|
||||
// [7] (byte~) main::$0 ← (byte) '0' + (byte) main::b#2 -- vbuxx=vbuc1_plus_vbuxx
|
||||
txa
|
||||
axs #-['0']
|
||||
// SCREEN[0] = '0'+b
|
||||
// [8] *((const byte*) SCREEN#0) ← (byte~) main::$0 -- _deref_pbuc1=vbuxx
|
||||
// Empty body
|
||||
stx SCREEN
|
||||
// main::@return
|
||||
// }
|
||||
// [9] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// for (; str[b] != 0; ++b)
|
||||
// [10] (byte) main::b#1 ← ++ (byte) main::b#2 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
||||
// [5] phi (byte) main::b#2 = (byte) main::b#1 [phi:main::@2->main::@1#0] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
str: .text "Hello!"
|
||||
.byte 0
|
||||
|
||||
19
src/test/ref/loop-for-empty-body.sym
Normal file
19
src/test/ref/loop-for-empty-body.sym
Normal file
@ -0,0 +1,19 @@
|
||||
(label) @1
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(byte*) SCREEN
|
||||
(const byte*) SCREEN#0 SCREEN = (byte*) 1024
|
||||
(void()) main()
|
||||
(byte~) main::$0 reg byte x 4.0
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@return
|
||||
(byte) main::b
|
||||
(byte) main::b#1 reg byte x 22.0
|
||||
(byte) main::b#2 reg byte x 17.5
|
||||
(byte[]) str
|
||||
(const byte[]) str#0 str = (string) "Hello!"
|
||||
|
||||
reg byte x [ main::b#2 main::b#1 ]
|
||||
reg byte x [ main::$0 ]
|
||||
48
src/test/ref/struct-ptr-20.asm
Normal file
48
src/test/ref/struct-ptr-20.asm
Normal file
@ -0,0 +1,48 @@
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(main)
|
||||
.pc = $80d "Program"
|
||||
.const SIZEOF_STRUCT_SETTING = 2
|
||||
.const OFFSET_STRUCT_SETTING_ID = 1
|
||||
.label SCREEN = $400
|
||||
main: {
|
||||
.const len = 3*SIZEOF_STRUCT_SETTING/SIZEOF_STRUCT_SETTING
|
||||
.label setting = 2
|
||||
ldx #0
|
||||
lda #<settings
|
||||
sta.z setting
|
||||
lda #>settings
|
||||
sta.z setting+1
|
||||
b1:
|
||||
lda.z setting+1
|
||||
cmp #>settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
bne !+
|
||||
lda.z setting
|
||||
cmp #<settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
!:
|
||||
rts
|
||||
b2:
|
||||
ldy #0
|
||||
lda (setting),y
|
||||
cmp #0
|
||||
bne b3
|
||||
ldy #OFFSET_STRUCT_SETTING_ID
|
||||
lda (setting),y
|
||||
sta SCREEN,x
|
||||
inx
|
||||
b3:
|
||||
lda #SIZEOF_STRUCT_SETTING
|
||||
clc
|
||||
adc.z setting
|
||||
sta.z setting
|
||||
bcc !+
|
||||
inc.z setting+1
|
||||
!:
|
||||
jmp b1
|
||||
}
|
||||
settings:
|
||||
.byte 0, 'a'
|
||||
.byte 1, 'b'
|
||||
.byte 0, 'c'
|
||||
31
src/test/ref/struct-ptr-20.cfg
Normal file
31
src/test/ref/struct-ptr-20.cfg
Normal file
@ -0,0 +1,31 @@
|
||||
@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] phi()
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@3
|
||||
[5] (byte) main::idx#2 ← phi( main/(byte) 0 main::@3/(byte) main::idx#5 )
|
||||
[5] (struct Setting*) main::setting#2 ← phi( main/(const struct Setting[]) settings#0 main::@3/(struct Setting*) main::setting#1 )
|
||||
[6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@1
|
||||
[7] return
|
||||
to:@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
[8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3
|
||||
to:main::@4
|
||||
main::@4: scope:[main] from main::@2
|
||||
[9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID)
|
||||
[10] (byte) main::idx#1 ← ++ (byte) main::idx#2
|
||||
to:main::@3
|
||||
main::@3: scope:[main] from main::@2 main::@4
|
||||
[11] (byte) main::idx#5 ← phi( main::@2/(byte) main::idx#2 main::@4/(byte) main::idx#1 )
|
||||
[12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING
|
||||
to:main::@1
|
||||
662
src/test/ref/struct-ptr-20.log
Normal file
662
src/test/ref/struct-ptr-20.log
Normal file
@ -0,0 +1,662 @@
|
||||
Fixing pointer addition (struct Setting*~) main::$2 ← (struct Setting[]) settings + (byte) main::len
|
||||
Fixing pointer increment (struct Setting*) main::setting ← ++ (struct Setting*) main::setting
|
||||
Rewriting struct pointer member access *((struct Setting*) main::setting).off
|
||||
Rewriting struct pointer member access *((struct Setting*) main::setting).id
|
||||
Warning! Adding boolean cast to non-boolean sub-expression *((byte*) main::$7)
|
||||
Culled Empty Block (label) main::@5
|
||||
Culled Empty Block (label) main::@3
|
||||
Culled Empty Block (label) main::@6
|
||||
Culled Empty Block (label) main::@8
|
||||
|
||||
CONTROL FLOW GRAPH SSA
|
||||
@begin: scope:[] from
|
||||
(byte*) SCREEN#0 ← ((byte*)) (number) $400
|
||||
(struct Setting[]) settings#0 ← { { (number) 0, (byte) 'a' }, { (number) 1, (byte) 'b' }, { (number) 0, (byte) 'c' } }
|
||||
to:@1
|
||||
main: scope:[main] from @1
|
||||
(byte) main::idx#0 ← (number) 0
|
||||
(byte~) main::$0 ← sizeof (struct Setting[]) settings#0
|
||||
(byte~) main::$1 ← (byte~) main::$0 / (const byte) SIZEOF_STRUCT_SETTING
|
||||
(byte) main::len#0 ← (byte~) main::$1
|
||||
(struct Setting*) main::setting#0 ← (struct Setting[]) settings#0
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@4
|
||||
(byte) main::idx#4 ← phi( main/(byte) main::idx#0 main::@4/(byte) main::idx#5 )
|
||||
(struct Setting*) main::setting#2 ← phi( main/(struct Setting*) main::setting#0 main::@4/(struct Setting*) main::setting#1 )
|
||||
(byte) main::len#1 ← phi( main/(byte) main::len#0 main::@4/(byte) main::len#2 )
|
||||
(byte~) main::$6 ← (byte) main::len#1 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
(struct Setting*~) main::$2 ← (struct Setting[]) settings#0 + (byte~) main::$6
|
||||
(bool~) main::$3 ← (struct Setting*) main::setting#2 < (struct Setting*~) main::$2
|
||||
if((bool~) main::$3) goto main::@2
|
||||
to:main::@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
(byte) main::len#3 ← phi( main::@1/(byte) main::len#1 )
|
||||
(byte) main::idx#3 ← phi( main::@1/(byte) main::idx#4 )
|
||||
(struct Setting*) main::setting#3 ← phi( main::@1/(struct Setting*) main::setting#2 )
|
||||
(byte*) main::$7 ← (byte*)(struct Setting*) main::setting#3 + (const byte) OFFSET_STRUCT_SETTING_OFF
|
||||
(bool~) main::$9 ← (number) 0 != *((byte*) main::$7)
|
||||
(bool~) main::$4 ← ! (bool~) main::$9
|
||||
(bool~) main::$5 ← ! (bool~) main::$4
|
||||
if((bool~) main::$5) goto main::@4
|
||||
to:main::@7
|
||||
main::@4: scope:[main] from main::@2 main::@7
|
||||
(byte) main::idx#5 ← phi( main::@2/(byte) main::idx#3 main::@7/(byte) main::idx#1 )
|
||||
(byte) main::len#2 ← phi( main::@2/(byte) main::len#3 main::@7/(byte) main::len#4 )
|
||||
(struct Setting*) main::setting#4 ← phi( main::@2/(struct Setting*) main::setting#3 main::@7/(struct Setting*) main::setting#5 )
|
||||
(struct Setting*) main::setting#1 ← (struct Setting*) main::setting#4 + (const byte) SIZEOF_STRUCT_SETTING
|
||||
to:main::@1
|
||||
main::@7: scope:[main] from main::@2
|
||||
(byte) main::len#4 ← phi( main::@2/(byte) main::len#3 )
|
||||
(byte) main::idx#2 ← phi( main::@2/(byte) main::idx#3 )
|
||||
(struct Setting*) main::setting#5 ← phi( main::@2/(struct Setting*) main::setting#3 )
|
||||
(byte*) main::$8 ← (byte*)(struct Setting*) main::setting#5 + (const byte) OFFSET_STRUCT_SETTING_ID
|
||||
*((byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*) main::$8)
|
||||
(byte) main::idx#1 ← ++ (byte) main::idx#2
|
||||
to:main::@4
|
||||
main::@return: scope:[main] from main::@1
|
||||
return
|
||||
to:@return
|
||||
@1: scope:[] from @begin
|
||||
call main
|
||||
to:@2
|
||||
@2: scope:[] from @1
|
||||
to:@end
|
||||
@end: scope:[] from @2
|
||||
|
||||
SYMBOL TABLE SSA
|
||||
(label) @1
|
||||
(label) @2
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(const byte) OFFSET_STRUCT_SETTING_ID = (byte) 1
|
||||
(const byte) OFFSET_STRUCT_SETTING_OFF = (byte) 0
|
||||
(byte*) SCREEN
|
||||
(byte*) SCREEN#0
|
||||
(const byte) SIZEOF_STRUCT_SETTING = (byte) 2
|
||||
(byte) Setting::id
|
||||
(byte) Setting::off
|
||||
(void()) main()
|
||||
(byte~) main::$0
|
||||
(byte~) main::$1
|
||||
(struct Setting*~) main::$2
|
||||
(bool~) main::$3
|
||||
(bool~) main::$4
|
||||
(bool~) main::$5
|
||||
(byte~) main::$6
|
||||
(byte*) main::$7
|
||||
(byte*) main::$8
|
||||
(bool~) main::$9
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@4
|
||||
(label) main::@7
|
||||
(label) main::@return
|
||||
(byte) main::idx
|
||||
(byte) main::idx#0
|
||||
(byte) main::idx#1
|
||||
(byte) main::idx#2
|
||||
(byte) main::idx#3
|
||||
(byte) main::idx#4
|
||||
(byte) main::idx#5
|
||||
(byte) main::len
|
||||
(byte) main::len#0
|
||||
(byte) main::len#1
|
||||
(byte) main::len#2
|
||||
(byte) main::len#3
|
||||
(byte) main::len#4
|
||||
(struct Setting*) main::setting
|
||||
(struct Setting*) main::setting#0
|
||||
(struct Setting*) main::setting#1
|
||||
(struct Setting*) main::setting#2
|
||||
(struct Setting*) main::setting#3
|
||||
(struct Setting*) main::setting#4
|
||||
(struct Setting*) main::setting#5
|
||||
(struct Setting[]) settings
|
||||
(struct Setting[]) settings#0
|
||||
|
||||
Adding number conversion cast (unumber) 0 in (byte) main::idx#0 ← (number) 0
|
||||
Adding number conversion cast (unumber) 0 in (bool~) main::$9 ← (number) 0 != *((byte*) main::$7)
|
||||
Successful SSA optimization PassNAddNumberTypeConversions
|
||||
Added casts to value list in (struct Setting[]) settings#0 ← (struct Setting[]){ (struct Setting){ (byte)(number) 0, (byte) 'a' }, (struct Setting){ (byte)(number) 1, (byte) 'b' }, (struct Setting){ (byte)(number) 0, (byte) 'c' } }
|
||||
Successful SSA optimization PassNAddInitializerValueListTypeCasts
|
||||
Inlining cast (byte*) SCREEN#0 ← (byte*)(number) $400
|
||||
Inlining cast (byte) main::idx#0 ← (unumber)(number) 0
|
||||
Successful SSA optimization Pass2InlineCast
|
||||
Simplifying constant pointer cast (byte*) 1024
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 1
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 0
|
||||
Successful SSA optimization PassNCastSimplification
|
||||
Finalized unsigned number type (byte) 0
|
||||
Finalized unsigned number type (byte) 0
|
||||
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
||||
Inversing boolean not [15] (bool~) main::$4 ← (byte) 0 == *((byte*) main::$7) from [14] (bool~) main::$9 ← (byte) 0 != *((byte*) main::$7)
|
||||
Inversing boolean not [16] (bool~) main::$5 ← (byte) 0 != *((byte*) main::$7) from [15] (bool~) main::$4 ← (byte) 0 == *((byte*) main::$7)
|
||||
Successful SSA optimization Pass2UnaryNotSimplification
|
||||
Alias (byte) main::len#0 = (byte~) main::$1
|
||||
Alias (struct Setting*) main::setting#2 = (struct Setting*) main::setting#3 (struct Setting*) main::setting#5
|
||||
Alias (byte) main::idx#2 = (byte) main::idx#3 (byte) main::idx#4
|
||||
Alias (byte) main::len#1 = (byte) main::len#3 (byte) main::len#4
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Alias (struct Setting*) main::setting#2 = (struct Setting*) main::setting#4
|
||||
Alias (byte) main::len#1 = (byte) main::len#2
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Identical Phi Values (byte) main::len#1 (byte) main::len#0
|
||||
Successful SSA optimization Pass2IdenticalPhiElimination
|
||||
Simple Condition (bool~) main::$3 [11] if((struct Setting*) main::setting#2<(struct Setting*~) main::$2) goto main::@2
|
||||
Simple Condition (bool~) main::$5 [17] if((byte) 0!=*((byte*) main::$7)) goto main::@4
|
||||
Successful SSA optimization Pass2ConditionalJumpSimplification
|
||||
Identified constant from value list (struct Setting) { off: (byte) 0, id: (byte) 'a' }
|
||||
Identified constant from value list (struct Setting) { off: (byte) 1, id: (byte) 'b' }
|
||||
Identified constant from value list (struct Setting) { off: (byte) 0, id: (byte) 'c' }
|
||||
Successful SSA optimization Pass2ConstantInitializerValueLists
|
||||
Identified constant from value list (struct Setting[]) { { off: (byte) 0, id: (byte) 'a' }, { off: (byte) 1, id: (byte) 'b' }, { off: (byte) 0, id: (byte) 'c' } }
|
||||
Successful SSA optimization Pass2ConstantInitializerValueLists
|
||||
Constant (const byte*) SCREEN#0 = (byte*) 1024
|
||||
Constant (const struct Setting[]) settings#0 = { { off: 0, id: 'a' }, { off: 1, id: 'b' }, { off: 0, id: 'c' } }
|
||||
Constant (const byte) main::idx#0 = 0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Constant (const struct Setting*) main::setting#0 = settings#0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Converting *(pointer+n) to pointer[n] [17] if((byte) 0!=*((byte*) main::$7)) goto main::@4 -- *((byte*)main::setting#2 + OFFSET_STRUCT_SETTING_OFF)
|
||||
Converting *(pointer+n) to pointer[n] [22] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*) main::$8) -- *((byte*)main::setting#2 + OFFSET_STRUCT_SETTING_ID)
|
||||
Successful SSA optimization Pass2InlineDerefIdx
|
||||
Simplifying expression containing zero (byte*)main::setting#2 in [13] (byte*) main::$7 ← (byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_OFF
|
||||
Simplifying expression containing zero (byte*)main::setting#2 in [17] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_OFF)) goto main::@4
|
||||
Successful SSA optimization PassNSimplifyExpressionWithZero
|
||||
Eliminating unused variable (byte*) main::$7 and assignment [6] (byte*) main::$7 ← (byte*)(struct Setting*) main::setting#2
|
||||
Eliminating unused variable (byte*) main::$8 and assignment [10] (byte*) main::$8 ← (byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID
|
||||
Eliminating unused constant (const byte) OFFSET_STRUCT_SETTING_OFF
|
||||
Successful SSA optimization PassNEliminateUnusedVars
|
||||
Constant right-side identified [0] (byte~) main::$0 ← sizeof (const struct Setting[]) settings#0
|
||||
Successful SSA optimization Pass2ConstantRValueConsolidation
|
||||
Constant (const byte) main::$0 = sizeof settings#0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Resolving array sizeof() sizeof (const struct Setting[]) settings#0
|
||||
Successful SSA optimization PassNSizeOfSimplification
|
||||
Constant right-side identified [0] (byte) main::len#0 ← (const byte) main::$0 / (const byte) SIZEOF_STRUCT_SETTING
|
||||
Successful SSA optimization Pass2ConstantRValueConsolidation
|
||||
Constant (const byte) main::len#0 = main::$0/SIZEOF_STRUCT_SETTING
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Adding number conversion cast (unumber) 3 in
|
||||
Successful SSA optimization PassNAddNumberTypeConversions
|
||||
Simplifying constant integer cast 3
|
||||
Successful SSA optimization PassNCastSimplification
|
||||
Finalized unsigned number type (byte) 3
|
||||
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
||||
Constant right-side identified [1] (byte~) main::$6 ← (const byte) main::len#0 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
Successful SSA optimization Pass2ConstantRValueConsolidation
|
||||
Constant (const byte) main::$6 = main::len#0*SIZEOF_STRUCT_SETTING
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Constant right-side identified [1] (struct Setting*~) main::$2 ← (const struct Setting[]) settings#0 + (const byte) main::$6
|
||||
Successful SSA optimization Pass2ConstantRValueConsolidation
|
||||
Constant (const struct Setting*) main::$2 = settings#0+main::$6
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Inlining constant with var siblings (const byte) main::idx#0
|
||||
Inlining constant with var siblings (const struct Setting*) main::setting#0
|
||||
Constant inlined main::$6 = (const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING
|
||||
Constant inlined main::idx#0 = (byte) 0
|
||||
Constant inlined main::setting#0 = (const struct Setting[]) settings#0
|
||||
Constant inlined main::$2 = (const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING
|
||||
Constant inlined main::$0 = (byte) 3*(const byte) SIZEOF_STRUCT_SETTING
|
||||
Successful SSA optimization Pass2ConstantInlining
|
||||
Added new block during phi lifting main::@9(between main::@2 and main::@4)
|
||||
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
|
||||
Adding NOP phi() at start of main
|
||||
CALL GRAPH
|
||||
Calls in [] to main:2
|
||||
|
||||
Created 3 initial phi equivalence classes
|
||||
Coalesced [12] main::idx#8 ← main::idx#1
|
||||
Coalesced [15] main::setting#6 ← main::setting#1
|
||||
Coalesced [16] main::idx#6 ← main::idx#5
|
||||
Coalesced (already) [17] main::idx#7 ← main::idx#2
|
||||
Coalesced down to 2 phi equivalence classes
|
||||
Culled Empty Block (label) @2
|
||||
Culled Empty Block (label) main::@9
|
||||
Renumbering block main::@4 to main::@3
|
||||
Renumbering block main::@7 to main::@4
|
||||
Adding NOP phi() at start of @begin
|
||||
Adding NOP phi() at start of @1
|
||||
Adding NOP phi() at start of @end
|
||||
Adding NOP phi() at start of main
|
||||
|
||||
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] phi()
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@3
|
||||
[5] (byte) main::idx#2 ← phi( main/(byte) 0 main::@3/(byte) main::idx#5 )
|
||||
[5] (struct Setting*) main::setting#2 ← phi( main/(const struct Setting[]) settings#0 main::@3/(struct Setting*) main::setting#1 )
|
||||
[6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@1
|
||||
[7] return
|
||||
to:@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
[8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3
|
||||
to:main::@4
|
||||
main::@4: scope:[main] from main::@2
|
||||
[9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID)
|
||||
[10] (byte) main::idx#1 ← ++ (byte) main::idx#2
|
||||
to:main::@3
|
||||
main::@3: scope:[main] from main::@2 main::@4
|
||||
[11] (byte) main::idx#5 ← phi( main::@2/(byte) main::idx#2 main::@4/(byte) main::idx#1 )
|
||||
[12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING
|
||||
to:main::@1
|
||||
|
||||
|
||||
VARIABLE REGISTER WEIGHTS
|
||||
(byte*) SCREEN
|
||||
(byte) Setting::id
|
||||
(byte) Setting::off
|
||||
(void()) main()
|
||||
(byte) main::idx
|
||||
(byte) main::idx#1 22.0
|
||||
(byte) main::idx#2 11.0
|
||||
(byte) main::idx#5 16.5
|
||||
(byte) main::len
|
||||
(struct Setting*) main::setting
|
||||
(struct Setting*) main::setting#1 22.0
|
||||
(struct Setting*) main::setting#2 5.5
|
||||
(struct Setting[]) settings
|
||||
|
||||
Initial phi equivalence classes
|
||||
[ main::setting#2 main::setting#1 ]
|
||||
[ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
Complete equivalence classes
|
||||
[ main::setting#2 main::setting#1 ]
|
||||
[ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
Allocated zp ZP_WORD:2 [ main::setting#2 main::setting#1 ]
|
||||
Allocated zp ZP_BYTE:4 [ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
|
||||
INITIAL ASM
|
||||
Target platform is c64basic
|
||||
// File Comments
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.const SIZEOF_STRUCT_SETTING = 2
|
||||
.const OFFSET_STRUCT_SETTING_ID = 1
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
.const len = 3*SIZEOF_STRUCT_SETTING/SIZEOF_STRUCT_SETTING
|
||||
.label setting = 2
|
||||
.label idx = 4
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
b1_from_main:
|
||||
// [5] phi (byte) main::idx#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
||||
lda #0
|
||||
sta.z idx
|
||||
// [5] phi (struct Setting*) main::setting#2 = (const struct Setting[]) settings#0 [phi:main->main::@1#1] -- pssz1=pssc1
|
||||
lda #<settings
|
||||
sta.z setting
|
||||
lda #>settings
|
||||
sta.z setting+1
|
||||
jmp b1
|
||||
// main::@1
|
||||
b1:
|
||||
// [6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2 -- pssz1_lt_pssc1_then_la1
|
||||
lda.z setting+1
|
||||
cmp #>settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
bne !+
|
||||
lda.z setting
|
||||
cmp #<settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
!:
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [7] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// [8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3 -- vbuc1_neq__deref_pbuz1_then_la1
|
||||
ldy #0
|
||||
lda (setting),y
|
||||
cmp #0
|
||||
bne b3_from_b2
|
||||
jmp b4
|
||||
// main::@4
|
||||
b4:
|
||||
// [9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID) -- pbuc1_derefidx_vbuz1=pbuz2_derefidx_vbuc2
|
||||
ldx.z idx
|
||||
ldy #OFFSET_STRUCT_SETTING_ID
|
||||
lda (setting),y
|
||||
sta SCREEN,x
|
||||
// [10] (byte) main::idx#1 ← ++ (byte) main::idx#2 -- vbuz1=_inc_vbuz1
|
||||
inc.z idx
|
||||
// [11] phi from main::@2 main::@4 to main::@3 [phi:main::@2/main::@4->main::@3]
|
||||
b3_from_b2:
|
||||
b3_from_b4:
|
||||
// [11] phi (byte) main::idx#5 = (byte) main::idx#2 [phi:main::@2/main::@4->main::@3#0] -- register_copy
|
||||
jmp b3
|
||||
// main::@3
|
||||
b3:
|
||||
// [12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING -- pssz1=pssz1_plus_vbuc1
|
||||
lda #SIZEOF_STRUCT_SETTING
|
||||
clc
|
||||
adc.z setting
|
||||
sta.z setting
|
||||
bcc !+
|
||||
inc.z setting+1
|
||||
!:
|
||||
// [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
|
||||
b1_from_b3:
|
||||
// [5] phi (byte) main::idx#2 = (byte) main::idx#5 [phi:main::@3->main::@1#0] -- register_copy
|
||||
// [5] phi (struct Setting*) main::setting#2 = (struct Setting*) main::setting#1 [phi:main::@3->main::@1#1] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
settings:
|
||||
.byte 0, 'a'
|
||||
.byte 1, 'b'
|
||||
.byte 0, 'c'
|
||||
|
||||
REGISTER UPLIFT POTENTIAL REGISTERS
|
||||
Statement [6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2 [ main::setting#2 main::idx#2 ] ( main:2 [ main::setting#2 main::idx#2 ] ) always clobbers reg byte a
|
||||
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:4 [ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
Statement [8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3 [ main::setting#2 main::idx#2 ] ( main:2 [ main::setting#2 main::idx#2 ] ) always clobbers reg byte a reg byte y
|
||||
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:4 [ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
Statement [9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID) [ main::setting#2 main::idx#2 ] ( main:2 [ main::setting#2 main::idx#2 ] ) always clobbers reg byte a reg byte y
|
||||
Statement [12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING [ main::setting#1 main::idx#5 ] ( main:2 [ main::setting#1 main::idx#5 ] ) always clobbers reg byte a
|
||||
Statement [6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2 [ main::setting#2 main::idx#2 ] ( main:2 [ main::setting#2 main::idx#2 ] ) always clobbers reg byte a
|
||||
Statement [8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3 [ main::setting#2 main::idx#2 ] ( main:2 [ main::setting#2 main::idx#2 ] ) always clobbers reg byte a reg byte y
|
||||
Statement [9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID) [ main::setting#2 main::idx#2 ] ( main:2 [ main::setting#2 main::idx#2 ] ) always clobbers reg byte a reg byte y
|
||||
Statement [12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING [ main::setting#1 main::idx#5 ] ( main:2 [ main::setting#1 main::idx#5 ] ) always clobbers reg byte a
|
||||
Potential registers zp ZP_WORD:2 [ main::setting#2 main::setting#1 ] : zp ZP_WORD:2 ,
|
||||
Potential registers zp ZP_BYTE:4 [ main::idx#2 main::idx#5 main::idx#1 ] : zp ZP_BYTE:4 , reg byte x ,
|
||||
|
||||
REGISTER UPLIFT SCOPES
|
||||
Uplift Scope [main] 49.5: zp ZP_BYTE:4 [ main::idx#2 main::idx#5 main::idx#1 ] 27.5: zp ZP_WORD:2 [ main::setting#2 main::setting#1 ]
|
||||
Uplift Scope [Setting]
|
||||
Uplift Scope []
|
||||
|
||||
Uplifting [main] best 903 combination reg byte x [ main::idx#2 main::idx#5 main::idx#1 ] zp ZP_WORD:2 [ main::setting#2 main::setting#1 ]
|
||||
Uplifting [Setting] best 903 combination
|
||||
Uplifting [] best 903 combination
|
||||
|
||||
ASSEMBLER BEFORE OPTIMIZATION
|
||||
// File Comments
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.const SIZEOF_STRUCT_SETTING = 2
|
||||
.const OFFSET_STRUCT_SETTING_ID = 1
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
.const len = 3*SIZEOF_STRUCT_SETTING/SIZEOF_STRUCT_SETTING
|
||||
.label setting = 2
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
b1_from_main:
|
||||
// [5] phi (byte) main::idx#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
// [5] phi (struct Setting*) main::setting#2 = (const struct Setting[]) settings#0 [phi:main->main::@1#1] -- pssz1=pssc1
|
||||
lda #<settings
|
||||
sta.z setting
|
||||
lda #>settings
|
||||
sta.z setting+1
|
||||
jmp b1
|
||||
// main::@1
|
||||
b1:
|
||||
// [6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2 -- pssz1_lt_pssc1_then_la1
|
||||
lda.z setting+1
|
||||
cmp #>settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
bne !+
|
||||
lda.z setting
|
||||
cmp #<settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
!:
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [7] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// [8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3 -- vbuc1_neq__deref_pbuz1_then_la1
|
||||
ldy #0
|
||||
lda (setting),y
|
||||
cmp #0
|
||||
bne b3_from_b2
|
||||
jmp b4
|
||||
// main::@4
|
||||
b4:
|
||||
// [9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID) -- pbuc1_derefidx_vbuxx=pbuz1_derefidx_vbuc2
|
||||
ldy #OFFSET_STRUCT_SETTING_ID
|
||||
lda (setting),y
|
||||
sta SCREEN,x
|
||||
// [10] (byte) main::idx#1 ← ++ (byte) main::idx#2 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [11] phi from main::@2 main::@4 to main::@3 [phi:main::@2/main::@4->main::@3]
|
||||
b3_from_b2:
|
||||
b3_from_b4:
|
||||
// [11] phi (byte) main::idx#5 = (byte) main::idx#2 [phi:main::@2/main::@4->main::@3#0] -- register_copy
|
||||
jmp b3
|
||||
// main::@3
|
||||
b3:
|
||||
// [12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING -- pssz1=pssz1_plus_vbuc1
|
||||
lda #SIZEOF_STRUCT_SETTING
|
||||
clc
|
||||
adc.z setting
|
||||
sta.z setting
|
||||
bcc !+
|
||||
inc.z setting+1
|
||||
!:
|
||||
// [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
|
||||
b1_from_b3:
|
||||
// [5] phi (byte) main::idx#2 = (byte) main::idx#5 [phi:main::@3->main::@1#0] -- register_copy
|
||||
// [5] phi (struct Setting*) main::setting#2 = (struct Setting*) main::setting#1 [phi:main::@3->main::@1#1] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
settings:
|
||||
.byte 0, 'a'
|
||||
.byte 1, 'b'
|
||||
.byte 0, 'c'
|
||||
|
||||
ASSEMBLER OPTIMIZATIONS
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp bend
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp breturn
|
||||
Removing instruction jmp b4
|
||||
Removing instruction jmp b3
|
||||
Succesful ASM optimization Pass5NextJumpElimination
|
||||
Replacing label b3_from_b2 with b3
|
||||
Removing instruction b1_from_bbegin:
|
||||
Removing instruction b1:
|
||||
Removing instruction main_from_b1:
|
||||
Removing instruction bend_from_b1:
|
||||
Removing instruction b3_from_b2:
|
||||
Removing instruction b3_from_b4:
|
||||
Succesful ASM optimization Pass5RedundantLabelElimination
|
||||
Removing instruction bend:
|
||||
Removing instruction b1_from_main:
|
||||
Removing instruction breturn:
|
||||
Removing instruction b4:
|
||||
Removing instruction b1_from_b3:
|
||||
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_SETTING_ID OFFSET_STRUCT_SETTING_ID = (byte) 1
|
||||
(byte*) SCREEN
|
||||
(const byte*) SCREEN#0 SCREEN = (byte*) 1024
|
||||
(const byte) SIZEOF_STRUCT_SETTING SIZEOF_STRUCT_SETTING = (byte) 2
|
||||
(byte) Setting::id
|
||||
(byte) Setting::off
|
||||
(void()) main()
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@4
|
||||
(label) main::@return
|
||||
(byte) main::idx
|
||||
(byte) main::idx#1 reg byte x 22.0
|
||||
(byte) main::idx#2 reg byte x 11.0
|
||||
(byte) main::idx#5 reg byte x 16.5
|
||||
(byte) main::len
|
||||
(const byte) main::len#0 len = (byte) 3*(const byte) SIZEOF_STRUCT_SETTING/(const byte) SIZEOF_STRUCT_SETTING
|
||||
(struct Setting*) main::setting
|
||||
(struct Setting*) main::setting#1 setting zp ZP_WORD:2 22.0
|
||||
(struct Setting*) main::setting#2 setting zp ZP_WORD:2 5.5
|
||||
(struct Setting[]) settings
|
||||
(const struct Setting[]) settings#0 settings = { { off: (byte) 0, id: (byte) 'a' }, { off: (byte) 1, id: (byte) 'b' }, { off: (byte) 0, id: (byte) 'c' } }
|
||||
|
||||
zp ZP_WORD:2 [ main::setting#2 main::setting#1 ]
|
||||
reg byte x [ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
|
||||
|
||||
FINAL ASSEMBLER
|
||||
Score: 771
|
||||
|
||||
// File Comments
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(main)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.const SIZEOF_STRUCT_SETTING = 2
|
||||
.const OFFSET_STRUCT_SETTING_ID = 1
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
// @1
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
// @end
|
||||
// main
|
||||
main: {
|
||||
.const len = 3*SIZEOF_STRUCT_SETTING/SIZEOF_STRUCT_SETTING
|
||||
.label setting = 2
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
// [5] phi (byte) main::idx#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
// [5] phi (struct Setting*) main::setting#2 = (const struct Setting[]) settings#0 [phi:main->main::@1#1] -- pssz1=pssc1
|
||||
lda #<settings
|
||||
sta.z setting
|
||||
lda #>settings
|
||||
sta.z setting+1
|
||||
// main::@1
|
||||
b1:
|
||||
// for(struct Setting* setting = settings; setting<settings+len; setting++)
|
||||
// [6] if((struct Setting*) main::setting#2<(const struct Setting[]) settings#0+(const byte) main::len#0*(const byte) SIZEOF_STRUCT_SETTING) goto main::@2 -- pssz1_lt_pssc1_then_la1
|
||||
lda.z setting+1
|
||||
cmp #>settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
bne !+
|
||||
lda.z setting
|
||||
cmp #<settings+len*SIZEOF_STRUCT_SETTING
|
||||
bcc b2
|
||||
!:
|
||||
// main::@return
|
||||
// }
|
||||
// [7] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// if (! setting->off)
|
||||
// [8] if((byte) 0!=*((byte*)(struct Setting*) main::setting#2)) goto main::@3 -- vbuc1_neq__deref_pbuz1_then_la1
|
||||
ldy #0
|
||||
lda (setting),y
|
||||
cmp #0
|
||||
bne b3
|
||||
// main::@4
|
||||
// SCREEN[idx++] = setting->id
|
||||
// [9] *((const byte*) SCREEN#0 + (byte) main::idx#2) ← *((byte*)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_ID) -- pbuc1_derefidx_vbuxx=pbuz1_derefidx_vbuc2
|
||||
ldy #OFFSET_STRUCT_SETTING_ID
|
||||
lda (setting),y
|
||||
sta SCREEN,x
|
||||
// SCREEN[idx++] = setting->id;
|
||||
// [10] (byte) main::idx#1 ← ++ (byte) main::idx#2 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [11] phi from main::@2 main::@4 to main::@3 [phi:main::@2/main::@4->main::@3]
|
||||
// [11] phi (byte) main::idx#5 = (byte) main::idx#2 [phi:main::@2/main::@4->main::@3#0] -- register_copy
|
||||
// main::@3
|
||||
b3:
|
||||
// for(struct Setting* setting = settings; setting<settings+len; setting++)
|
||||
// [12] (struct Setting*) main::setting#1 ← (struct Setting*) main::setting#2 + (const byte) SIZEOF_STRUCT_SETTING -- pssz1=pssz1_plus_vbuc1
|
||||
lda #SIZEOF_STRUCT_SETTING
|
||||
clc
|
||||
adc.z setting
|
||||
sta.z setting
|
||||
bcc !+
|
||||
inc.z setting+1
|
||||
!:
|
||||
// [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
|
||||
// [5] phi (byte) main::idx#2 = (byte) main::idx#5 [phi:main::@3->main::@1#0] -- register_copy
|
||||
// [5] phi (struct Setting*) main::setting#2 = (struct Setting*) main::setting#1 [phi:main::@3->main::@1#1] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
settings:
|
||||
.byte 0, 'a'
|
||||
.byte 1, 'b'
|
||||
.byte 0, 'c'
|
||||
|
||||
29
src/test/ref/struct-ptr-20.sym
Normal file
29
src/test/ref/struct-ptr-20.sym
Normal file
@ -0,0 +1,29 @@
|
||||
(label) @1
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(const byte) OFFSET_STRUCT_SETTING_ID OFFSET_STRUCT_SETTING_ID = (byte) 1
|
||||
(byte*) SCREEN
|
||||
(const byte*) SCREEN#0 SCREEN = (byte*) 1024
|
||||
(const byte) SIZEOF_STRUCT_SETTING SIZEOF_STRUCT_SETTING = (byte) 2
|
||||
(byte) Setting::id
|
||||
(byte) Setting::off
|
||||
(void()) main()
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@3
|
||||
(label) main::@4
|
||||
(label) main::@return
|
||||
(byte) main::idx
|
||||
(byte) main::idx#1 reg byte x 22.0
|
||||
(byte) main::idx#2 reg byte x 11.0
|
||||
(byte) main::idx#5 reg byte x 16.5
|
||||
(byte) main::len
|
||||
(const byte) main::len#0 len = (byte) 3*(const byte) SIZEOF_STRUCT_SETTING/(const byte) SIZEOF_STRUCT_SETTING
|
||||
(struct Setting*) main::setting
|
||||
(struct Setting*) main::setting#1 setting zp ZP_WORD:2 22.0
|
||||
(struct Setting*) main::setting#2 setting zp ZP_WORD:2 5.5
|
||||
(struct Setting[]) settings
|
||||
(const struct Setting[]) settings#0 settings = { { off: (byte) 0, id: (byte) 'a' }, { off: (byte) 1, id: (byte) 'b' }, { off: (byte) 0, id: (byte) 'c' } }
|
||||
|
||||
zp ZP_WORD:2 [ main::setting#2 main::setting#1 ]
|
||||
reg byte x [ main::idx#2 main::idx#5 main::idx#1 ]
|
||||
32
src/test/ref/struct-ptr-21.asm
Normal file
32
src/test/ref/struct-ptr-21.asm
Normal file
@ -0,0 +1,32 @@
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(main)
|
||||
.pc = $80d "Program"
|
||||
.const OFFSET_STRUCT_SETTING_BUF = 1
|
||||
.label SCREEN = $400
|
||||
main: {
|
||||
ldx #0
|
||||
b1:
|
||||
cpx settings
|
||||
bcc b2
|
||||
rts
|
||||
b2:
|
||||
txa
|
||||
asl
|
||||
tay
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF
|
||||
sta.z $fe
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF+1
|
||||
sta.z $ff
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
iny
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
inx
|
||||
jmp b1
|
||||
}
|
||||
seq: .word 1, 2, 3
|
||||
settings:
|
||||
.byte 3
|
||||
.word seq
|
||||
24
src/test/ref/struct-ptr-21.cfg
Normal file
24
src/test/ref/struct-ptr-21.cfg
Normal file
@ -0,0 +1,24 @@
|
||||
@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] phi()
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@2
|
||||
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@2/(byte) main::i#1 )
|
||||
[6] if((byte) main::i#2<*((byte*)(const struct Setting[]) settings#0)) goto main::@2
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@1
|
||||
[7] return
|
||||
to:@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
[8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1
|
||||
[9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3)
|
||||
[10] (byte) main::i#1 ← ++ (byte) main::i#2
|
||||
to:main::@1
|
||||
529
src/test/ref/struct-ptr-21.log
Normal file
529
src/test/ref/struct-ptr-21.log
Normal file
@ -0,0 +1,529 @@
|
||||
Fixing pointer array-indexing *((word[]) seq + (number) 0)
|
||||
Fixing pointer array-indexing *((struct Setting[]) settings + (number) 0)
|
||||
Fixing pointer array-indexing *(*((struct Setting*) main::setting).buf + (byte) main::i)
|
||||
Fixing pointer array-indexing *((word*) SCREEN + (byte) main::i)
|
||||
Rewriting struct pointer member access *((struct Setting*) main::setting).len
|
||||
Rewriting struct pointer member access *((struct Setting*) main::setting).buf
|
||||
Identified constant variable (byte) main::idx
|
||||
Culled Empty Block (label) main::@4
|
||||
Culled Empty Block (label) main::@3
|
||||
Culled Empty Block (label) main::@5
|
||||
Culled Empty Block (label) main::@6
|
||||
|
||||
CONTROL FLOW GRAPH SSA
|
||||
@begin: scope:[] from
|
||||
(word*) SCREEN#0 ← ((word*)) (number) $400
|
||||
(word[]) seq#0 ← { (number) 1, (number) 2, (number) 3 }
|
||||
(number~) $1 ← (number) 0 * (const byte) SIZEOF_WORD
|
||||
(word*~) $0 ← & *((word[]) seq#0 + (number~) $1)
|
||||
(struct Setting[]) settings#0 ← { { (number) 3, (word*~) $0 } }
|
||||
to:@1
|
||||
main: scope:[main] from @1
|
||||
(number~) main::$2 ← (number) 0 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
(struct Setting*~) main::$0 ← & *((struct Setting[]) settings#0 + (number~) main::$2)
|
||||
(struct Setting*) main::setting#0 ← (struct Setting*~) main::$0
|
||||
(byte) main::i#0 ← (number) 0
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@2
|
||||
(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@2/(byte) main::i#1 )
|
||||
(struct Setting*) main::setting#1 ← phi( main/(struct Setting*) main::setting#0 main::@2/(struct Setting*) main::setting#2 )
|
||||
(byte*) main::$4 ← (byte*)(struct Setting*) main::setting#1 + (const byte) OFFSET_STRUCT_SETTING_LEN
|
||||
(bool~) main::$1 ← (byte) main::i#2 < *((byte*) main::$4)
|
||||
if((bool~) main::$1) goto main::@2
|
||||
to:main::@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
(struct Setting*) main::setting#2 ← phi( main::@1/(struct Setting*) main::setting#1 )
|
||||
(byte) main::i#3 ← phi( main::@1/(byte) main::i#2 )
|
||||
(byte~) main::$3 ← (byte) main::i#3 * (const byte) SIZEOF_WORD
|
||||
(word**) main::$5 ← (word**)(struct Setting*) main::setting#2 + (const byte) OFFSET_STRUCT_SETTING_BUF
|
||||
*((word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**) main::$5) + (byte~) main::$3)
|
||||
(byte) main::i#1 ← ++ (byte) main::i#3
|
||||
to:main::@1
|
||||
main::@return: scope:[main] from main::@1
|
||||
return
|
||||
to:@return
|
||||
@1: scope:[] from @begin
|
||||
call main
|
||||
to:@2
|
||||
@2: scope:[] from @1
|
||||
to:@end
|
||||
@end: scope:[] from @2
|
||||
|
||||
SYMBOL TABLE SSA
|
||||
(word*~) $0
|
||||
(number~) $1
|
||||
(label) @1
|
||||
(label) @2
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(const byte) OFFSET_STRUCT_SETTING_BUF = (byte) 1
|
||||
(const byte) OFFSET_STRUCT_SETTING_LEN = (byte) 0
|
||||
(word*) SCREEN
|
||||
(word*) SCREEN#0
|
||||
(const byte) SIZEOF_STRUCT_SETTING = (byte) 3
|
||||
(const byte) SIZEOF_WORD = (byte) 2
|
||||
(word*) Setting::buf
|
||||
(byte) Setting::len
|
||||
(void()) main()
|
||||
(struct Setting*~) main::$0
|
||||
(bool~) main::$1
|
||||
(number~) main::$2
|
||||
(byte~) main::$3
|
||||
(byte*) main::$4
|
||||
(word**) main::$5
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@return
|
||||
(byte) main::i
|
||||
(byte) main::i#0
|
||||
(byte) main::i#1
|
||||
(byte) main::i#2
|
||||
(byte) main::i#3
|
||||
(struct Setting*) main::setting
|
||||
(struct Setting*) main::setting#0
|
||||
(struct Setting*) main::setting#1
|
||||
(struct Setting*) main::setting#2
|
||||
(word[]) seq
|
||||
(word[]) seq#0
|
||||
(struct Setting[]) settings
|
||||
(struct Setting[]) settings#0
|
||||
|
||||
Adding number conversion cast (unumber) 0 in (number~) $1 ← (number) 0 * (const byte) SIZEOF_WORD
|
||||
Adding number conversion cast (unumber) $1 in (number~) $1 ← (unumber)(number) 0 * (const byte) SIZEOF_WORD
|
||||
Adding number conversion cast (unumber) 0 in (number~) main::$2 ← (number) 0 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
Adding number conversion cast (unumber) main::$2 in (number~) main::$2 ← (unumber)(number) 0 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
Adding number conversion cast (unumber) 0 in (byte) main::i#0 ← (number) 0
|
||||
Successful SSA optimization PassNAddNumberTypeConversions
|
||||
Added casts to value list in (word[]) seq#0 ← (word[]){ (word)(number) 1, (word)(number) 2, (word)(number) 3 }
|
||||
Added casts to value list in (struct Setting[]) settings#0 ← (struct Setting[]){ (struct Setting){ (byte)(number) 3, (word*~) $0 } }
|
||||
Successful SSA optimization PassNAddInitializerValueListTypeCasts
|
||||
Inlining cast (word*) SCREEN#0 ← (word*)(number) $400
|
||||
Inlining cast (byte) main::i#0 ← (unumber)(number) 0
|
||||
Successful SSA optimization Pass2InlineCast
|
||||
Simplifying constant pointer cast (word*) 1024
|
||||
Simplifying constant integer cast 1
|
||||
Simplifying constant integer cast 2
|
||||
Simplifying constant integer cast 3
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 3
|
||||
Simplifying constant integer cast 0
|
||||
Simplifying constant integer cast 0
|
||||
Successful SSA optimization PassNCastSimplification
|
||||
Finalized unsigned number type (byte) 0
|
||||
Finalized unsigned number type (byte) 0
|
||||
Finalized unsigned number type (byte) 0
|
||||
Successful SSA optimization PassNFinalizeNumberTypeConversions
|
||||
Inferred type updated to byte in (unumber~) $1 ← (byte) 0 * (const byte) SIZEOF_WORD
|
||||
Inferred type updated to byte in (unumber~) main::$2 ← (byte) 0 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
Alias (struct Setting*) main::setting#0 = (struct Setting*~) main::$0
|
||||
Alias (byte) main::i#2 = (byte) main::i#3
|
||||
Alias (struct Setting*) main::setting#1 = (struct Setting*) main::setting#2
|
||||
Successful SSA optimization Pass2AliasElimination
|
||||
Identical Phi Values (struct Setting*) main::setting#1 (struct Setting*) main::setting#0
|
||||
Successful SSA optimization Pass2IdenticalPhiElimination
|
||||
Simple Condition (bool~) main::$1 [12] if((byte) main::i#2<*((byte*) main::$4)) goto main::@2
|
||||
Successful SSA optimization Pass2ConditionalJumpSimplification
|
||||
Rewriting array member address-of to pointer addition [3] (word*~) $0 ← (word[]) seq#0 + (byte~) $1
|
||||
Rewriting array member address-of to pointer addition [6] (struct Setting*) main::setting#0 ← (struct Setting[]) settings#0 + (byte~) main::$2
|
||||
Successful SSA optimization PassNArrayElementAddressOfRewriting
|
||||
Constant right-side identified [2] (byte~) $1 ← (byte) 0 * (const byte) SIZEOF_WORD
|
||||
Constant right-side identified [5] (byte~) main::$2 ← (byte) 0 * (const byte) SIZEOF_STRUCT_SETTING
|
||||
Successful SSA optimization Pass2ConstantRValueConsolidation
|
||||
Identified constant from value list (word[]) { (word) 1, (word) 2, (word) 3 }
|
||||
Successful SSA optimization Pass2ConstantInitializerValueLists
|
||||
Constant (const word*) SCREEN#0 = (word*) 1024
|
||||
Constant (const word[]) seq#0 = { 1, 2, 3 }
|
||||
Constant (const byte) $1 = 0*SIZEOF_WORD
|
||||
Constant (const byte) main::$2 = 0*SIZEOF_STRUCT_SETTING
|
||||
Constant (const byte) main::i#0 = 0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Converting *(pointer+n) to pointer[n] [12] if((byte) main::i#2<*((byte*) main::$4)) goto main::@2 -- *((byte*)main::setting#0 + OFFSET_STRUCT_SETTING_LEN)
|
||||
Converting *(pointer+n) to pointer[n] [16] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**) main::$5) + (byte~) main::$3) -- *((word**)main::setting#0 + OFFSET_STRUCT_SETTING_BUF)
|
||||
Successful SSA optimization Pass2InlineDerefIdx
|
||||
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_STRUCT_SETTING in
|
||||
Simplifying constant evaluating to zero (byte) 0*(const byte) SIZEOF_WORD in
|
||||
Successful SSA optimization PassNSimplifyConstantZero
|
||||
Simplifying expression containing zero seq#0 in [3] (word*~) $0 ← (const word[]) seq#0 + (const byte) $1
|
||||
Simplifying expression containing zero settings#0 in [6] (struct Setting*) main::setting#0 ← (struct Setting[]) settings#0 + (const byte) main::$2
|
||||
Simplifying expression containing zero (byte*)main::setting#0 in [10] (byte*) main::$4 ← (byte*)(struct Setting*) main::setting#0 + (const byte) OFFSET_STRUCT_SETTING_LEN
|
||||
Simplifying expression containing zero (byte*)main::setting#0 in [12] if((byte) main::i#2<*((byte*)(struct Setting*) main::setting#0 + (const byte) OFFSET_STRUCT_SETTING_LEN)) goto main::@2
|
||||
Successful SSA optimization PassNSimplifyExpressionWithZero
|
||||
Eliminating unused variable (byte*) main::$4 and assignment [4] (byte*) main::$4 ← (byte*)(struct Setting*) main::setting#0
|
||||
Eliminating unused variable (word**) main::$5 and assignment [7] (word**) main::$5 ← (word**)(struct Setting*) main::setting#0 + (const byte) OFFSET_STRUCT_SETTING_BUF
|
||||
Eliminating unused constant (const byte) main::$2
|
||||
Eliminating unused constant (const byte) SIZEOF_STRUCT_SETTING
|
||||
Eliminating unused constant (const byte) OFFSET_STRUCT_SETTING_LEN
|
||||
Eliminating unused constant (const byte) $1
|
||||
Successful SSA optimization PassNEliminateUnusedVars
|
||||
Constant (const word*) $0 = seq#0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Identified constant from value list (struct Setting) { len: (byte) 3, buf: (const word*) $0 }
|
||||
Successful SSA optimization Pass2ConstantInitializerValueLists
|
||||
Identified constant from value list (struct Setting[]) { { len: (byte) 3, buf: (const word*) $0 } }
|
||||
Successful SSA optimization Pass2ConstantInitializerValueLists
|
||||
Constant (const struct Setting[]) settings#0 = { { len: 3, buf: $0 } }
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Constant (const struct Setting*) main::setting#0 = settings#0
|
||||
Successful SSA optimization Pass2ConstantIdentification
|
||||
Constant value identified (byte*)main::setting#0 in [3] if((byte) main::i#2<*((byte*)(const struct Setting*) main::setting#0)) goto main::@2
|
||||
Constant value identified (word**)main::setting#0 in [5] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting*) main::setting#0 + (const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3)
|
||||
Successful SSA optimization Pass2ConstantValues
|
||||
Rewriting multiplication to use shift [2] (byte~) main::$3 ← (byte) main::i#2 * (const byte) SIZEOF_WORD
|
||||
Successful SSA optimization Pass2MultiplyToShiftRewriting
|
||||
Inlining constant with var siblings (const byte) main::i#0
|
||||
Constant inlined $0 = (const word[]) seq#0
|
||||
Constant inlined main::i#0 = (byte) 0
|
||||
Constant inlined main::setting#0 = (const struct Setting[]) settings#0
|
||||
Successful SSA optimization Pass2ConstantInlining
|
||||
Consolidated array index constant in *((word**)settings#0+OFFSET_STRUCT_SETTING_BUF)
|
||||
Successful SSA optimization Pass2ConstantAdditionElimination
|
||||
Eliminating unused constant (const byte) SIZEOF_WORD
|
||||
Successful SSA optimization PassNEliminateUnusedVars
|
||||
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
|
||||
Adding NOP phi() at start of main
|
||||
CALL GRAPH
|
||||
Calls in [] to main:2
|
||||
|
||||
Created 1 initial phi equivalence classes
|
||||
Coalesced [12] main::i#4 ← main::i#1
|
||||
Coalesced down to 1 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
|
||||
Adding NOP phi() at start of main
|
||||
|
||||
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] phi()
|
||||
to:main::@1
|
||||
main::@1: scope:[main] from main main::@2
|
||||
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@2/(byte) main::i#1 )
|
||||
[6] if((byte) main::i#2<*((byte*)(const struct Setting[]) settings#0)) goto main::@2
|
||||
to:main::@return
|
||||
main::@return: scope:[main] from main::@1
|
||||
[7] return
|
||||
to:@return
|
||||
main::@2: scope:[main] from main::@1
|
||||
[8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1
|
||||
[9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3)
|
||||
[10] (byte) main::i#1 ← ++ (byte) main::i#2
|
||||
to:main::@1
|
||||
|
||||
|
||||
VARIABLE REGISTER WEIGHTS
|
||||
(word*) SCREEN
|
||||
(word*) Setting::buf
|
||||
(byte) Setting::len
|
||||
(void()) main()
|
||||
(byte~) main::$3 33.0
|
||||
(byte) main::i
|
||||
(byte) main::i#1 22.0
|
||||
(byte) main::i#2 11.0
|
||||
(struct Setting*) main::setting
|
||||
(word[]) seq
|
||||
(struct Setting[]) settings
|
||||
|
||||
Initial phi equivalence classes
|
||||
[ main::i#2 main::i#1 ]
|
||||
Added variable main::$3 to zero page equivalence class [ main::$3 ]
|
||||
Complete equivalence classes
|
||||
[ main::i#2 main::i#1 ]
|
||||
[ main::$3 ]
|
||||
Allocated zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
|
||||
Allocated zp ZP_BYTE:3 [ main::$3 ]
|
||||
|
||||
INITIAL ASM
|
||||
Target platform is c64basic
|
||||
// File Comments
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.const OFFSET_STRUCT_SETTING_BUF = 1
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
.label _3 = 3
|
||||
.label i = 2
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
b1_from_main:
|
||||
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
||||
lda #0
|
||||
sta.z i
|
||||
jmp b1
|
||||
// main::@1
|
||||
b1:
|
||||
// [6] if((byte) main::i#2<*((byte*)(const struct Setting[]) settings#0)) goto main::@2 -- vbuz1_lt__deref_pbuc1_then_la1
|
||||
lda.z i
|
||||
cmp settings
|
||||
bcc b2
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [7] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// [8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1
|
||||
lda.z i
|
||||
asl
|
||||
sta.z _3
|
||||
// [9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3) -- pwuc1_derefidx_vbuz1=_deref_pptc2_derefidx_vbuz1
|
||||
ldy.z _3
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF
|
||||
sta.z $fe
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF+1
|
||||
sta.z $ff
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
iny
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
// [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
|
||||
inc.z i
|
||||
// [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
||||
b1_from_b2:
|
||||
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#0] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
seq: .word 1, 2, 3
|
||||
settings:
|
||||
.byte 3
|
||||
.word seq
|
||||
|
||||
REGISTER UPLIFT POTENTIAL REGISTERS
|
||||
Statement [8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::$3 ] ( main:2 [ main::i#2 main::$3 ] ) always clobbers reg byte a
|
||||
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
|
||||
Statement [9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3) [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a reg byte y
|
||||
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:2 [ main::i#2 main::i#1 ]
|
||||
Statement [8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::$3 ] ( main:2 [ main::i#2 main::$3 ] ) always clobbers reg byte a
|
||||
Statement [9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3) [ main::i#2 ] ( main:2 [ main::i#2 ] ) always clobbers reg byte a reg byte y
|
||||
Potential registers zp ZP_BYTE:2 [ main::i#2 main::i#1 ] : zp ZP_BYTE:2 , reg byte x ,
|
||||
Potential registers zp ZP_BYTE:3 [ main::$3 ] : zp ZP_BYTE:3 , reg byte a , reg byte x , reg byte y ,
|
||||
|
||||
REGISTER UPLIFT SCOPES
|
||||
Uplift Scope [main] 33: zp ZP_BYTE:2 [ main::i#2 main::i#1 ] 33: zp ZP_BYTE:3 [ main::$3 ]
|
||||
Uplift Scope [Setting]
|
||||
Uplift Scope []
|
||||
|
||||
Uplifting [main] best 643 combination reg byte x [ main::i#2 main::i#1 ] reg byte a [ main::$3 ]
|
||||
Uplifting [Setting] best 643 combination
|
||||
Uplifting [] best 643 combination
|
||||
|
||||
ASSEMBLER BEFORE OPTIMIZATION
|
||||
// File Comments
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(bbegin)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.const OFFSET_STRUCT_SETTING_BUF = 1
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
bbegin:
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
b1_from_bbegin:
|
||||
jmp b1
|
||||
// @1
|
||||
b1:
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
main_from_b1:
|
||||
jsr main
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
bend_from_b1:
|
||||
jmp bend
|
||||
// @end
|
||||
bend:
|
||||
// main
|
||||
main: {
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
b1_from_main:
|
||||
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
jmp b1
|
||||
// main::@1
|
||||
b1:
|
||||
// [6] if((byte) main::i#2<*((byte*)(const struct Setting[]) settings#0)) goto main::@2 -- vbuxx_lt__deref_pbuc1_then_la1
|
||||
cpx settings
|
||||
bcc b2
|
||||
jmp breturn
|
||||
// main::@return
|
||||
breturn:
|
||||
// [7] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// [8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1
|
||||
txa
|
||||
asl
|
||||
// [9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3) -- pwuc1_derefidx_vbuaa=_deref_pptc2_derefidx_vbuaa
|
||||
tay
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF
|
||||
sta.z $fe
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF+1
|
||||
sta.z $ff
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
iny
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
// [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
||||
b1_from_b2:
|
||||
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#0] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
seq: .word 1, 2, 3
|
||||
settings:
|
||||
.byte 3
|
||||
.word seq
|
||||
|
||||
ASSEMBLER OPTIMIZATIONS
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp bend
|
||||
Removing instruction jmp b1
|
||||
Removing instruction jmp breturn
|
||||
Succesful ASM optimization Pass5NextJumpElimination
|
||||
Removing instruction b1_from_bbegin:
|
||||
Removing instruction b1:
|
||||
Removing instruction main_from_b1:
|
||||
Removing instruction bend_from_b1:
|
||||
Succesful ASM optimization Pass5RedundantLabelElimination
|
||||
Removing instruction bend:
|
||||
Removing instruction b1_from_main:
|
||||
Removing instruction breturn:
|
||||
Removing instruction b1_from_b2:
|
||||
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_SETTING_BUF OFFSET_STRUCT_SETTING_BUF = (byte) 1
|
||||
(word*) SCREEN
|
||||
(const word*) SCREEN#0 SCREEN = (word*) 1024
|
||||
(word*) Setting::buf
|
||||
(byte) Setting::len
|
||||
(void()) main()
|
||||
(byte~) main::$3 reg byte a 33.0
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@return
|
||||
(byte) main::i
|
||||
(byte) main::i#1 reg byte x 22.0
|
||||
(byte) main::i#2 reg byte x 11.0
|
||||
(struct Setting*) main::setting
|
||||
(word[]) seq
|
||||
(const word[]) seq#0 seq = { (word) 1, (word) 2, (word) 3 }
|
||||
(struct Setting[]) settings
|
||||
(const struct Setting[]) settings#0 settings = { { len: (byte) 3, buf: (const word[]) seq#0 } }
|
||||
|
||||
reg byte x [ main::i#2 main::i#1 ]
|
||||
reg byte a [ main::$3 ]
|
||||
|
||||
|
||||
FINAL ASSEMBLER
|
||||
Score: 571
|
||||
|
||||
// File Comments
|
||||
// Demonstrates problem with conditions using negated struct references
|
||||
// Upstart
|
||||
.pc = $801 "Basic"
|
||||
:BasicUpstart(main)
|
||||
.pc = $80d "Program"
|
||||
// Global Constants & labels
|
||||
.const OFFSET_STRUCT_SETTING_BUF = 1
|
||||
.label SCREEN = $400
|
||||
// @begin
|
||||
// [1] phi from @begin to @1 [phi:@begin->@1]
|
||||
// @1
|
||||
// [2] call main
|
||||
// [4] phi from @1 to main [phi:@1->main]
|
||||
// [3] phi from @1 to @end [phi:@1->@end]
|
||||
// @end
|
||||
// main
|
||||
main: {
|
||||
// [5] phi from main to main::@1 [phi:main->main::@1]
|
||||
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
|
||||
ldx #0
|
||||
// main::@1
|
||||
b1:
|
||||
// for( char i=0;i<setting->len;i++)
|
||||
// [6] if((byte) main::i#2<*((byte*)(const struct Setting[]) settings#0)) goto main::@2 -- vbuxx_lt__deref_pbuc1_then_la1
|
||||
cpx settings
|
||||
bcc b2
|
||||
// main::@return
|
||||
// }
|
||||
// [7] return
|
||||
rts
|
||||
// main::@2
|
||||
b2:
|
||||
// SCREEN[i] = setting->buf[i]
|
||||
// [8] (byte~) main::$3 ← (byte) main::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1
|
||||
txa
|
||||
asl
|
||||
// [9] *((const word*) SCREEN#0 + (byte~) main::$3) ← *(*((word**)(const struct Setting[]) settings#0+(const byte) OFFSET_STRUCT_SETTING_BUF) + (byte~) main::$3) -- pwuc1_derefidx_vbuaa=_deref_pptc2_derefidx_vbuaa
|
||||
tay
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF
|
||||
sta.z $fe
|
||||
lda settings+OFFSET_STRUCT_SETTING_BUF+1
|
||||
sta.z $ff
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
iny
|
||||
lda ($fe),y
|
||||
sta SCREEN,y
|
||||
// for( char i=0;i<setting->len;i++)
|
||||
// [10] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
|
||||
inx
|
||||
// [5] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
|
||||
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@2->main::@1#0] -- register_copy
|
||||
jmp b1
|
||||
}
|
||||
// File Data
|
||||
seq: .word 1, 2, 3
|
||||
settings:
|
||||
.byte 3
|
||||
.word seq
|
||||
|
||||
24
src/test/ref/struct-ptr-21.sym
Normal file
24
src/test/ref/struct-ptr-21.sym
Normal file
@ -0,0 +1,24 @@
|
||||
(label) @1
|
||||
(label) @begin
|
||||
(label) @end
|
||||
(const byte) OFFSET_STRUCT_SETTING_BUF OFFSET_STRUCT_SETTING_BUF = (byte) 1
|
||||
(word*) SCREEN
|
||||
(const word*) SCREEN#0 SCREEN = (word*) 1024
|
||||
(word*) Setting::buf
|
||||
(byte) Setting::len
|
||||
(void()) main()
|
||||
(byte~) main::$3 reg byte a 33.0
|
||||
(label) main::@1
|
||||
(label) main::@2
|
||||
(label) main::@return
|
||||
(byte) main::i
|
||||
(byte) main::i#1 reg byte x 22.0
|
||||
(byte) main::i#2 reg byte x 11.0
|
||||
(struct Setting*) main::setting
|
||||
(word[]) seq
|
||||
(const word[]) seq#0 seq = { (word) 1, (word) 2, (word) 3 }
|
||||
(struct Setting[]) settings
|
||||
(const struct Setting[]) settings#0 settings = { { len: (byte) 3, buf: (const word[]) seq#0 } }
|
||||
|
||||
reg byte x [ main::i#2 main::i#1 ]
|
||||
reg byte a [ main::$3 ]
|
||||
Loading…
x
Reference in New Issue
Block a user