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broadcom/vc5: Re-do live variables after removing thrsws.

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Otherwise our start/ends ips won't line up with the actual instructions.
This commit is contained in:
Eric Anholt 2018-02-23 17:46:35 -08:00
parent c3a504f470
commit 55bf298333
2 changed files with 14 additions and 3 deletions
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1
src/broadcom/compiler/nir_to_vir.c
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@ -1929,6 +1929,7 @@ vir_remove_thrsw(struct v3d_compile *c)
vir_remove_instruction(c, inst);
}
}
vir_calculate_live_intervals(c);
c->last_thrsw = NULL;
}

16
src/broadcom/compiler/vir_live_variables.c
View file

@ -311,10 +311,20 @@ vir_calculate_live_intervals(struct v3d_compile *c)
{
int bitset_words = BITSET_WORDS(c->num_temps);
/* If we called this function more than once, then we should be
* freeing the previous arrays.
/* We may be called more than once if we've rearranged the program to
* try to get register allocation to succeed.
*/
assert(!c->temp_start);
if (c->temp_start) {
ralloc_free(c->temp_start);
ralloc_free(c->temp_end);
vir_for_each_block(block, c) {
ralloc_free(block->def);
ralloc_free(block->use);
ralloc_free(block->live_in);
ralloc_free(block->live_out);
}
}
c->temp_start = rzalloc_array(c, int, c->num_temps);
c->temp_end = rzalloc_array(c, int, c->num_temps);