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[/] [or1k/] [tags/] [nog_patch_70/] [or1ksim/] [cuc/] [cuc.c] - Diff between revs 932 and 933

Rev 932	Rev 933
Line 40...	Line 40...
`1, 1, 0, 1, 0, 1, 0, 1,`	`1, 1, 0, 1, 0, 1, 0, 1,`
`0, 1, 0, 1, 0, 1, 0, 1,`	`0, 1, 0, 1, 0, 1, 0, 1,`
`0, 1, 0, 1, 0, 1, 0, 1,`	`0, 1, 0, 1, 0, 1, 0, 1,`
`1, 1};`	`1, 1};`

	`/* returns log2(x) */`
	`int log2 (unsigned long x)`
	`{`
	`int c = 0;`
	`assert (x >= 0);`
	`if (!x) return 0; /* not by the book, but practical */`
	`while (x != 1) x >>= 1, c++;`
	`return c;`
	`}`

`/* Does all known instruction optimizations */`	`/* Does all known instruction optimizations */`
`void cuc_optimize (cuc_func *func)`	`void cuc_optimize (cuc_func *func)`
`{`	`{`
`int modified = 0;`	`int modified = 0;`
`log ("Optimizing.\n");`	`log ("Optimizing.\n");`
`insert_conditional_facts (func);`	`insert_conditional_facts (func);`
	`if (cuc_debug >= 3) print_cuc_bb (func, "AFTER_COND_FACT");`
`do {`	`do {`
`modified = 0;`	`modified = 0;`
`if (optimize_cmovs (func)) {`	`if (optimize_cmovs (func)) {`
`if (cuc_debug >= 6) print_cuc_bb (func, "AFTER_OPT_CMOVS");`	`if (cuc_debug >= 6) print_cuc_bb (func, "AFTER_OPT_CMOVS");`
`modified = 1;`	`modified = 1;`