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-rw-r--r--src/compiler/glsl/linker.cpp9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index d1f10eeecd8..86ef5831b75 100644
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -2552,6 +2552,8 @@ find_available_slots(unsigned used_mask, unsigned needed_count)
}
+#define SAFE_MASK_FROM_INDEX(i) (((i) >= 32) ? ~0 : ((1 << (i)) - 1))
+
/**
* Assign locations for either VS inputs or FS outputs
*
@@ -2582,8 +2584,7 @@ assign_attribute_or_color_locations(void *mem_ctx,
/* Mark invalid locations as being used.
*/
- unsigned used_locations = (max_index >= 32)
- ? 0 : ~((1 << max_index) - 1);
+ unsigned used_locations = ~SAFE_MASK_FROM_INDEX(max_index);
unsigned double_storage_locations = 0;
assert((target_index == MESA_SHADER_VERTEX)
@@ -2936,7 +2937,7 @@ assign_attribute_or_color_locations(void *mem_ctx,
if (target_index == MESA_SHADER_VERTEX) {
unsigned total_attribs_size =
- _mesa_bitcount(used_locations & ((1 << max_index) - 1)) +
+ _mesa_bitcount(used_locations & SAFE_MASK_FROM_INDEX(max_index)) +
_mesa_bitcount(double_storage_locations);
if (total_attribs_size > max_index) {
linker_error(prog,
@@ -3000,7 +3001,7 @@ assign_attribute_or_color_locations(void *mem_ctx,
*/
if (target_index == MESA_SHADER_VERTEX) {
unsigned total_attribs_size =
- _mesa_bitcount(used_locations & ((1 << max_index) - 1)) +
+ _mesa_bitcount(used_locations & SAFE_MASK_FROM_INDEX(max_index)) +
_mesa_bitcount(double_storage_locations);
if (total_attribs_size > max_index) {
linker_error(prog,