From: Connor Abbott <cwabbo...@gmail.com>
For SPIR-V, Khronos decided to make the SubGroup*Mask system values
consist of 4 32-bit components rather than one 64-bit component.
Although we'll lower away the difference in nir_lower_system_values so
drivers won't have to deal with them, adding these system values makes
it easier to implement the SPIRV-to-NIR bits.
Signed-off-by: Connor Abbott <cwabbo...@gmail.com>
---
src/compiler/shader_enums.c | 5 +++++
src/compiler/shader_enums.h | 11 +++++++++++
2 files changed, 16 insertions(+)
diff --git a/src/compiler/shader_enums.c b/src/compiler/shader_enums.c
index b2ca80b..571a43e 100644
--- a/src/compiler/shader_enums.c
+++ b/src/compiler/shader_enums.c
@@ -211,6 +211,11 @@ gl_system_value_name(gl_system_value sysval)
ENUM(SYSTEM_VALUE_SUBGROUP_GT_MASK),
ENUM(SYSTEM_VALUE_SUBGROUP_LE_MASK),
ENUM(SYSTEM_VALUE_SUBGROUP_LT_MASK),
+ ENUM(SYSTEM_VALUE_SUBGROUP_EQ_MASK_32BIT),
+ ENUM(SYSTEM_VALUE_SUBGROUP_GE_MASK_32BIT),
+ ENUM(SYSTEM_VALUE_SUBGROUP_GT_MASK_32BIT),
+ ENUM(SYSTEM_VALUE_SUBGROUP_LE_MASK_32BIT),
+ ENUM(SYSTEM_VALUE_SUBGROUP_LT_MASK_32BIT),
ENUM(SYSTEM_VALUE_VERTEX_ID),
ENUM(SYSTEM_VALUE_INSTANCE_ID),
ENUM(SYSTEM_VALUE_INSTANCE_INDEX),
diff --git a/src/compiler/shader_enums.h b/src/compiler/shader_enums.h
index 07db476..174b5ca 100644
--- a/src/compiler/shader_enums.h
+++ b/src/compiler/shader_enums.h
@@ -373,6 +373,17 @@ typedef enum
SYSTEM_VALUE_SUBGROUP_GT_MASK,
SYSTEM_VALUE_SUBGROUP_LE_MASK,
SYSTEM_VALUE_SUBGROUP_LT_MASK,
+
+ /**
+ * These are the same as system values above, except that they consist of 4
+ * 32-bit components rather than 1 64-bit component. This matches the
+ * semantics of the SPIR-V KHR_shader_ballot extension.
+ */
+ SYSTEM_VALUE_SUBGROUP_EQ_MASK_32BIT,
+ SYSTEM_VALUE_SUBGROUP_GE_MASK_32BIT,
+ SYSTEM_VALUE_SUBGROUP_GT_MASK_32BIT,
+ SYSTEM_VALUE_SUBGROUP_LE_MASK_32BIT,
+ SYSTEM_VALUE_SUBGROUP_LT_MASK_32BIT,
/*@}*/
/*@}*/
--
2.9.4
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