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nir/validate: Don't allow derefs in if conditions

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Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This commit is contained in:
Jason Ekstrand 2019-01-04 11:11:49 -06:00 • committed by Jason Ekstrand
parent e94a027af8
commit 427558a717
1 changed files with 6 additions and 0 deletions
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6
src/compiler/nir/nir_validate.c
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@ -493,6 +493,12 @@ validate_deref_instr(nir_deref_instr *instr, validate_state *state)
* pointers should be.
*/
validate_dest(&instr->dest, state, 0, 0);
/* Deref instructions as if conditions don't make sense because if
* conditions expect well-formed Booleans. If you want to compare with
* NULL, an explicit comparison operation should be used.
*/
validate_assert(state, list_empty(&instr->dest.ssa.if_uses));
}
static void