Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105670
---
...vs-loop-complex-unroll-nested-break.shader_test | 48 ++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644
tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-nested-break.shader_test
diff --git
a/tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-nested-break.shader_test
b/tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-nested-break.shader_test
new file mode 100644
index 000000000..42721ca79
--- /dev/null
+++
b/tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-nested-break.shader_test
@@ -0,0 +1,48 @@
+# This tests for a bug in loop unrolling where we were detecting 2 breaks in
+# the loop but only found a single terminator (exit condition). The result was
+# we were attempting to do a complex unroll but failing half way through the
+# unroll process. As a result we ended up creating an infinite loop.
+[require]
+GLSL >= 1.10
+
+[vertex shader]
+uniform int loop_break;
+
+void main()
+{
+ gl_Position = gl_Vertex;
+
+ vec4 colour;
+ int j = 0;
+ for (int i = 0; i < 4; i++) {
+
+ colour = vec4(0.0, 1.0, 0.0, 1.0);
+
+ if (i >= 2) {
+ j++; // we use this so the if doesn't get reduced to a series of bcsel
+ if (loop_break == 1 || j == loop_break) {
+ colour = vec4(1.0, 0.0, 0.0, 1.0);
+ break;
+ }
+ }
+ }
+
+ gl_FrontColor = colour;
+}
+
+[fragment shader]
+void main()
+{
+ gl_FragColor = gl_Color;
+}
+
+[test]
+clear color 0.5 0.5 0.5 0.5
+
+uniform int loop_break 0
+draw rect -1 -1 2 2
+probe all rgba 0.0 1.0 0.0 1.0
+
+uniform int loop_break 1
+draw rect -1 -1 2 2
+probe all rgba 1.0 0.0 0.0 1.0
--
2.14.3
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