On Tuesday, 2018-09-11 15:42:05 +0300, asimiklit.w...@gmail.com wrote:
> From: Andrii Simiklit <andrii.simik...@globallogic.com>
>
> 1. nir/nir_lower_vars_to_ssa.c:691:21: warning:
> unused variable ‘var’
> nir_variable *var = path->path[0]->var;
>
> 2. nir_types.cpp:558:31: warning:
> ‘elem_align’ may be used uninitialized in this function
> unsigned elem_size, elem_align;
> nir_types.cpp:558:20: warning:
> ‘elem_size’ may be used uninitialized in this function
> unsigned elem_size, elem_align;
>
> Signed-off-by: Andrii Simiklit <andrii.simik...@globallogic.com>
> ---
> src/compiler/nir/nir_lower_vars_to_ssa.c | 2 +-
> src/compiler/nir_types.cpp | 4 ++--
> 2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/src/compiler/nir/nir_lower_vars_to_ssa.c
> b/src/compiler/nir/nir_lower_vars_to_ssa.c
> index cd679be..96de261 100644
> --- a/src/compiler/nir/nir_lower_vars_to_ssa.c
> +++ b/src/compiler/nir/nir_lower_vars_to_ssa.c
> @@ -688,7 +688,7 @@ nir_lower_vars_to_ssa_impl(nir_function_impl *impl)
> nir_deref_path *path = &node->path;
>
> assert(path->path[0]->deref_type == nir_deref_type_var);
> - nir_variable *var = path->path[0]->var;
> + MAYBE_UNUSED nir_variable *var = path->path[0]->var;
>
> /* We don't build deref nodes for non-local variables */
> assert(var->data.mode == nir_var_local);
Sure, or you could simply remove the single-use extra local variable and
just fold it into the assert :)
> diff --git a/src/compiler/nir_types.cpp b/src/compiler/nir_types.cpp
> index d24f094..d39d87b 100644
> --- a/src/compiler/nir_types.cpp
> +++ b/src/compiler/nir_types.cpp
> @@ -542,7 +542,7 @@ glsl_get_natural_size_align_bytes(const struct glsl_type
> *type,
> }
>
> case GLSL_TYPE_ARRAY: {
> - unsigned elem_size, elem_align;
> + unsigned elem_size = 0, elem_align = 0;
Not really keen on these ones; it looks like your compiler is ignoring the
unreachable() in glsl_get_natural_size_align_bytes() and mis-computing the
possible code-paths, resulting in it wrongly printing a warning.
I'd prefer to keep these two hunks as is, so that real issue in
glsl_get_natural_size_align_bytes() would get flagged appropriately.
> glsl_get_natural_size_align_bytes(type->fields.array,
> &elem_size, &elem_align);
> *align = elem_align;
> @@ -554,7 +554,7 @@ glsl_get_natural_size_align_bytes(const struct glsl_type
> *type,
> *size = 0;
> *align = 0;
> for (unsigned i = 0; i < type->length; i++) {
> - unsigned elem_size, elem_align;
> + unsigned elem_size = 0, elem_align = 0;
> glsl_get_natural_size_align_bytes(type->fields.structure[i].type,
> &elem_size, &elem_align);
> *align = MAX2(*align, elem_align);
> --
> 2.7.4
>
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