From: Ian Romanick <ian.d.roman...@intel.com>
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
.../execution/shared-atomicAdd-int.shader_test | 57 ++++++++++++++++++++++
1 file changed, 57 insertions(+)
create mode 100644
tests/spec/arb_compute_shader/execution/shared-atomicAdd-int.shader_test
diff --git
a/tests/spec/arb_compute_shader/execution/shared-atomicAdd-int.shader_test
b/tests/spec/arb_compute_shader/execution/shared-atomicAdd-int.shader_test
new file mode 100644
index 000000000..d6e3ad9c5
--- /dev/null
+++ b/tests/spec/arb_compute_shader/execution/shared-atomicAdd-int.shader_test
@@ -0,0 +1,57 @@
+[require]
+GL >= 3.3
+GLSL >= 3.30
+GL_ARB_compute_shader
+GL_ARB_shader_atomic_counters
+
+[compute shader]
+#version 330
+#extension GL_ARB_compute_shader: require
+#extension GL_ARB_shader_atomic_counters: require
+
+layout(local_size_x = 32) in;
+
+shared int value;
+shared uint mask;
+
+layout(binding = 0) uniform atomic_uint pass;
+layout(binding = 0) uniform atomic_uint fail;
+
+void main()
+{
+ if (gl_LocalInvocationIndex == 0u) {
+ value = 0;
+ mask = 0u;
+ }
+
+ barrier();
+
+ /* Each local invocation should see a unique value. Each value
+ * observed is tracked in "mask." The test automatically fails if a
+ * duplicate value is observed. The test passes once all 32 possible
+ * values have been observed.
+ */
+ int f = atomicAdd(value, 4);
+ uint i = uint(f) / 4u;
+ uint bit = i % 32u;
+ uint m = 1u << bit;
+
+ if (i < 32u) {
+ /* If the bit was already set, the test fails. */
+ uint r = atomicOr(mask, m);
+ if ((r & m) != 0u)
+ atomicCounterIncrement(fail);
+
+ /* Once all 32 bits are set, the test passes. */
+ if ((r | m) == 0xffffffffu)
+ atomicCounterIncrement(pass);
+ } else {
+ atomicCounterIncrement(fail);
+ }
+}
+
+[test]
+atomic counters 2
+compute 2 3 4
+probe atomic counter 0 == 24
+probe atomic counter 1 == 0
--
2.14.4
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