ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum
Last change
on this file since 3c67255 was
d7a02ae,
checked in by Peter A. Buhr <pabuhr@…>, 5 years ago
|
first complete draft of new concurrency paper
|
-
Property mode set to
100644
|
File size:
1.4 KB
|
Rev | Line | |
---|
[466fa01] | 1 | #include <stdio.h> |
---|
| 2 | |
---|
| 3 | typedef struct PingPong { |
---|
| 4 | const char * name; |
---|
| 5 | int N, i; |
---|
[d7a02ae] | 6 | struct PingPong * partner; |
---|
[466fa01] | 7 | void * next; |
---|
| 8 | } PingPong; |
---|
[d7a02ae] | 9 | #define PPCtor( name, N ) { name, N, 0, NULL, NULL } |
---|
[466fa01] | 10 | void comain( PingPong * pp ) __attribute__(( noinline )); |
---|
| 11 | void comain( PingPong * pp ) { |
---|
| 12 | if ( __builtin_expect(pp->next != 0, 1) ) goto *pp->next; |
---|
| 13 | #if 0 |
---|
| 14 | pp->next = &&here; |
---|
| 15 | asm( "mov %0,%%rdi" : "=m" (pp) ); |
---|
| 16 | asm( "mov %rdi,%rax" ); |
---|
| 17 | #ifndef OPT |
---|
| 18 | #ifdef PRINT |
---|
| 19 | asm( "add $16, %rsp" ); |
---|
| 20 | #endif // PRINT |
---|
| 21 | asm( "popq %rbp" ); |
---|
| 22 | #endif // ! OPT |
---|
| 23 | |
---|
| 24 | #ifdef OPT |
---|
| 25 | #ifdef PRINT |
---|
| 26 | asm( "popq %rbx" ); |
---|
| 27 | #endif // PRINT |
---|
| 28 | #endif // OPT |
---|
| 29 | asm( "jmp comain" ); |
---|
| 30 | here: ; |
---|
| 31 | #endif // 0 |
---|
| 32 | |
---|
| 33 | pp->next = &&cycle; |
---|
| 34 | for ( ; pp->i < pp->N; pp->i += 1 ) { |
---|
| 35 | #ifdef PRINT |
---|
| 36 | printf( "%s %d\n", pp->name, pp->i ); |
---|
| 37 | #endif // PRINT |
---|
| 38 | asm( "mov %0,%%rdi" : "=m" (pp->partner) ); |
---|
| 39 | asm( "mov %rdi,%rax" ); |
---|
| 40 | #ifndef OPT |
---|
| 41 | #ifdef PRINT |
---|
| 42 | asm( "add $16, %rsp" ); |
---|
| 43 | #endif // PRINT |
---|
| 44 | asm( "popq %rbp" ); |
---|
| 45 | #endif // ! OPT |
---|
| 46 | |
---|
| 47 | #ifdef OPT |
---|
| 48 | #ifdef PRINT |
---|
| 49 | asm( "popq %rbx" ); |
---|
| 50 | #endif // PRINT |
---|
| 51 | #endif // OPT |
---|
| 52 | asm( "jmp comain" ); |
---|
| 53 | cycle: ; |
---|
| 54 | } // for |
---|
| 55 | } |
---|
| 56 | |
---|
| 57 | int main() { |
---|
| 58 | enum { N = |
---|
| 59 | #ifdef PRINT |
---|
| 60 | 5 |
---|
| 61 | #else |
---|
| 62 | 1000000000 |
---|
| 63 | #endif // PRINT |
---|
| 64 | }; |
---|
| 65 | PingPong ping = PPCtor( "ping", N ), pong = PPCtor( "pong", N ); |
---|
| 66 | ping.partner = &pong; pong.partner = &ping; |
---|
| 67 | comain( &ping ); |
---|
| 68 | } |
---|
| 69 | |
---|
| 70 | // Local Variables: // |
---|
| 71 | // tab-width: 4 // |
---|
| 72 | // compile-command: "gcc-8 -g -DPRINT PingPong.c" // |
---|
| 73 | // End: // |
---|
Note: See
TracBrowser
for help on using the repository browser.