Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105317 --- ...fs-nested-loop-unrolled-with-return.shader_test | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tests/spec/glsl-1.10/execution/fs-nested-loop-unrolled-with-return.shader_test
diff --git a/tests/spec/glsl-1.10/execution/fs-nested-loop-unrolled-with-return.shader_test b/tests/spec/glsl-1.10/execution/fs-nested-loop-unrolled-with-return.shader_test new file mode 100644 index 000000000..3d110f2ad --- /dev/null +++ b/tests/spec/glsl-1.10/execution/fs-nested-loop-unrolled-with-return.shader_test @@ -0,0 +1,40 @@ +# This test for a bug in LLVM based drivers where the LLVM validator cannot +# handle a break that is not the last instruction in the block. radeonsi +# in order to speed up compilation only runs GLSL IR optimisation passes a +# limit number of times. So we need to make sure it successfully removed any +# instructions following a break before creating the LLVM IR. +# +[require] +GLSL >= 1.10 + +[vertex shader] +void main(void) +{ + gl_Position = gl_Vertex; +} + +[fragment shader] +uniform int a; + +vec4 getColour() { + /* We use a uniform in the outer loop comparision so it's not immediately + * unrolled. + */ + for(int v124 = 0; v124 != a; v124++) { + for(int v229 = 1; v229 > 0; v229--) { + return vec4(0.0, 1.0, 0.0, 1.0); + } + } + + return vec4(1.0, 0.0, 0.0, 1.0); +} + +void main(void) { + gl_FragColor = getColour(); +} + +[test] +uniform int a 1 + +draw rect -1 -1 2 2 +probe all rgba 0.0 1.0 0.0 1.0 -- 2.14.3 _______________________________________________ Piglit mailing list Piglit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/piglit