Mesa (master): nir: Add a nir_shader_preserve_all_metadata helper
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Thu Jun 11 05:28:39 UTC 2020
Module: Mesa
Branch: master
Commit: b0d1f9a72ff6e1c7164dc22ff5eb3e817f245d13
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b0d1f9a72ff6e1c7164dc22ff5eb3e817f245d13
Author: Jason Ekstrand <jason at jlekstrand.net>
Date: Thu May 21 21:37:33 2020 -0500
nir: Add a nir_shader_preserve_all_metadata helper
There are some passes which really work on the shader level and it's
easier if we have a helper which preserves metadata on the whole shader.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5171>
---
src/compiler/nir/nir.h | 2 ++
src/compiler/nir/nir_metadata.c | 9 +++++++++
2 files changed, 11 insertions(+)
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 9d0110ebe94..b0316df4ffa 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -3294,6 +3294,8 @@ nir_function_impl *nir_cf_node_get_function(nir_cf_node *node);
void nir_metadata_require(nir_function_impl *impl, nir_metadata required, ...);
/** dirties all but the preserved metadata */
void nir_metadata_preserve(nir_function_impl *impl, nir_metadata preserved);
+/** Preserves all metadata for the given shader */
+void nir_shader_preserve_all_metadata(nir_shader *shader);
/** creates an instruction with default swizzle/writemask/etc. with NULL registers */
nir_alu_instr *nir_alu_instr_create(nir_shader *shader, nir_op op);
diff --git a/src/compiler/nir/nir_metadata.c b/src/compiler/nir/nir_metadata.c
index e681ba34f75..6122394d8b5 100644
--- a/src/compiler/nir/nir_metadata.c
+++ b/src/compiler/nir/nir_metadata.c
@@ -59,6 +59,15 @@ nir_metadata_preserve(nir_function_impl *impl, nir_metadata preserved)
impl->valid_metadata &= preserved;
}
+void
+nir_shader_preserve_all_metadata(nir_shader *shader)
+{
+ nir_foreach_function(function, shader) {
+ if (function->impl)
+ nir_metadata_preserve(function->impl, nir_metadata_all);
+ }
+}
+
#ifndef NDEBUG
/**
* Make sure passes properly invalidate metadata (part 1).
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