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nir: initialize value in copy_prop_vars_block

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Fixes following valgrind warning:

   ==27561== Conditional jump or move depends on uninitialised value(s)
   ==27561==    at 0x667856B: value_set_ssa_components (nir_opt_copy_prop_vars.c:78)
   ==27561==    by 0x667A1C4: copy_prop_vars_block (nir_opt_copy_prop_vars.c:797)

Fixes: 62332d139c "nir: Add a local variable-based copy propagation pass"
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
This commit is contained in:
Tapani Pälli 2019-02-25 11:14:11 +02:00
parent 97566efe5c
commit 22267feff1
1 changed files with 1 additions and 1 deletions
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2
src/compiler/nir/nir_opt_copy_prop_vars.c
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@ -763,7 +763,7 @@ copy_prop_vars_block(struct copy_prop_var_state *state,
struct copy_entry *src_entry =
lookup_entry_for_deref(copies, src, nir_derefs_a_contains_b_bit);
struct value value;
struct value value = {0};
if (try_load_from_entry(state, src_entry, b, intrin, src, &value)) {
if (value.is_ssa) {
/* lookup_load has already ensured that we get a single SSA