diff options
Diffstat (limited to 'tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-cf-before-terminators.shader_test')
-rw-r--r-- | tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-cf-before-terminators.shader_test | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-cf-before-terminators.shader_test b/tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-cf-before-terminators.shader_test new file mode 100644 index 000000000..9e766220d --- /dev/null +++ b/tests/spec/glsl-1.10/execution/vs-loop-complex-unroll-cf-before-terminators.shader_test @@ -0,0 +1,56 @@ +# This tests unrolling of a loop with two exit point where the trip count +# of one of the exits is known and the other unknown (conditional on uniform). +# +# Here we test that control flow that comes before the terminators is properly +# inserted into the unrolled loop. +[require] +GLSL >= 1.10 + +[vertex shader] +uniform int a; + +void main() +{ + gl_Position = gl_Vertex; + + vec4 colour = vec4(1.0, 0.0, 0.0, 1.0); + + int i = 0; + int j = 0; + do { + if (i == 2) { + colour = vec4(0.0, 0.0, 1.0, 1.0); + j++; // we use this so the if doesn't get reduced to a series of bcsel + } else { + colour = vec4(0.0, 1.0, 0.0, 1.0); + } + + i++; + j++; + + if (i >= 3) { + if (j != 4) + colour = vec4(1.0, 0.0, 0.0, 1.0); + break; + } + } while (a == 1); + + gl_FrontColor = colour; +} + +[fragment shader] +void main() +{ + gl_FragColor = gl_Color; +} + +[test] +clear color 0.5 0.5 0.5 0.5 + +uniform int a 0 +draw rect -1 -1 2 2 +probe all rgba 0.0 1.0 0.0 1.0 + +uniform int a 1 +draw rect -1 -1 2 2 +probe all rgba 0.0 0.0 1.0 1.0 |