Cc: Jason Ekstrand <[email protected]>
Cc: Mark Janes <[email protected]>
---
.../fs-loop-unrolled-divide-by-zero.shader_test | 31 ++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644
tests/spec/glsl-1.10/linker/fs-loop-unrolled-divide-by-zero.shader_test
diff --git
a/tests/spec/glsl-1.10/linker/fs-loop-unrolled-divide-by-zero.shader_test
b/tests/spec/glsl-1.10/linker/fs-loop-unrolled-divide-by-zero.shader_test
new file mode 100644
index 000000000..761657c3c
--- /dev/null
+++ b/tests/spec/glsl-1.10/linker/fs-loop-unrolled-divide-by-zero.shader_test
@@ -0,0 +1,31 @@
+# From the GLSL 4.60 spec Section 5.9 (Expressions):
+#
+# "Dividing by zero does not cause an exception but does
+# result in an unspecified value."
+#
+# Here we make sure that constant evaluation doesn't crash on
+# a divide by zero.
+#
+[require]
+GLSL >= 1.10
+
+[vertex shader passthrough]
+
+[fragment shader]
+void main()
+{
+ int j = 0;
+
+ // We use a loop specifically to avoid Mesa's GLSL IR
+ // from doing the constant evaluating. In this case
+ // we want to test NIR which exclusively does loop
+ // unrolling on some drivers and will therefore end
+ // up doing the constant evaluation.
+ for (int i = 0; i < 4; i++)
+ j += 42/i;
+
+ gl_FragColor.x = 255.0f / float(j);
+}
+
+[test]
+link success
--
2.14.3
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