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nir,vtn: add shader_info::assume_no_data_races

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com> (nir)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36602>
This commit is contained in:
Rhys Perry 2025-09-22 10:39:44 +01:00 • committed by Marge Bot
parent f1b16a5a1a
commit 21187c4662
2 changed files with 7 additions and 0 deletions
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6
src/compiler/shader_info.h
View file

@ -334,6 +334,12 @@ typedef struct shader_info {
*/
enum gl_derivative_group derivative_group:2;
/* Assume that data races do not happen. If this isn't set, data races
* read/write undefined values, but do not cause undefined behaviour. This
* is set when the Vulkan memory model is used.
*/
bool assume_no_data_races:1;
union {
struct {
/* Which inputs are doubles */

1
src/compiler/spirv/spirv_to_nir.c
View file

@ -5327,6 +5327,7 @@ vtn_handle_preamble_instruction(struct vtn_builder *b, SpvOp opcode,
case SpvMemoryModelVulkan:
vtn_fail_if(!b->supported_capabilities.VulkanMemoryModel,
"Vulkan memory model is unsupported by this driver");
b->shader->info.assume_no_data_races = true;
break;
default:
vtn_fail("Unsupported memory model: %s",