From: Ian Romanick <ian.d.roman...@intel.com>
These tests caught a bug in an optimized version of nir_op_fsign that I
was working on for i965. I thought of a couple clever ways to optimize
sign(a)*sign(b), but most of those ways would fail one or more of the
tests with ±Inf.
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
.../execution/fs-sign-times-sign.shader_test | 53 +++++++++++++++++++
.../execution/vs-sign-times-sign.shader_test | 61 ++++++++++++++++++++++
2 files changed, 114 insertions(+)
create mode 100644
tests/spec/glsl-1.10/execution/fs-sign-times-sign.shader_test
create mode 100644
tests/spec/glsl-1.10/execution/vs-sign-times-sign.shader_test
diff --git a/tests/spec/glsl-1.10/execution/fs-sign-times-sign.shader_test
b/tests/spec/glsl-1.10/execution/fs-sign-times-sign.shader_test
new file mode 100644
index 000000000..c46320b20
--- /dev/null
+++ b/tests/spec/glsl-1.10/execution/fs-sign-times-sign.shader_test
@@ -0,0 +1,53 @@
+[require]
+GLSL >= 1.10
+
+[vertex shader passthrough]
+
+[fragment shader]
+uniform vec4 v[25];
+
+void main()
+{
+ vec4 color = vec4(0.0, 1.0, 0.0, 1.0);
+
+ for (int i = 0; i < 25; i++) {
+ if (sign(v[i].x) * sign(v[i].y) != v[i].z)
+ color = vec4(1.0, 0.0, 0.0, 1.0);
+ }
+
+ gl_FragColor = color;
+}
+
+[test]
+uniform vec4 v[0] 5.0 5.0 1.0 0.0
+uniform vec4 v[1] 5.0 -5.0 -1.0 0.0
+uniform vec4 v[2] 5.0 0.0 0.0 0.0
+uniform vec4 v[3] 5.0 0x7f000000 1.0 0.0
+uniform vec4 v[4] 5.0 0xff000000 -1.0 0.0
+
+uniform vec4 v[5] -5.0 5.0 -1.0 0.0
+uniform vec4 v[6] -5.0 -5.0 1.0 0.0
+uniform vec4 v[7] -5.0 0.0 0.0 0.0
+uniform vec4 v[8] -5.0 0x7f000000 -1.0 0.0
+uniform vec4 v[9] -5.0 0xff000000 1.0 0.0
+
+uniform vec4 v[10] 0.0 5.0 0.0 0.0
+uniform vec4 v[11] 0.0 -5.0 0.0 0.0
+uniform vec4 v[12] 0.0 0.0 0.0 0.0
+uniform vec4 v[13] 0.0 0x7f000000 0.0 0.0
+uniform vec4 v[14] 0.0 0xff000000 0.0 0.0
+
+uniform vec4 v[15] 0x7f000000 5.0 1.0 0.0
+uniform vec4 v[16] 0x7f000000 -5.0 -1.0 0.0
+uniform vec4 v[17] 0x7f000000 0.0 0.0 0.0
+uniform vec4 v[18] 0x7f000000 0x7f000000 1.0 0.0
+uniform vec4 v[19] 0x7f000000 0xff000000 -1.0 0.0
+
+uniform vec4 v[20] 0xff000000 5.0 -1.0 0.0
+uniform vec4 v[21] 0xff000000 -5.0 1.0 0.0
+uniform vec4 v[22] 0xff000000 0.0 0.0 0.0
+uniform vec4 v[23] 0xff000000 0x7f000000 -1.0 0.0
+uniform vec4 v[24] 0xff000000 0xff000000 1.0 0.0
+
+draw rect -1 -1 2 2
+probe rgb 1 1 0.0 1.0 0.0
diff --git a/tests/spec/glsl-1.10/execution/vs-sign-times-sign.shader_test
b/tests/spec/glsl-1.10/execution/vs-sign-times-sign.shader_test
new file mode 100644
index 000000000..ab28b650a
--- /dev/null
+++ b/tests/spec/glsl-1.10/execution/vs-sign-times-sign.shader_test
@@ -0,0 +1,61 @@
+[require]
+GLSL >= 1.10
+
+[vertex shader]
+uniform vec4 v[25];
+
+varying vec4 color;
+
+void main()
+{
+ color = vec4(0.0, 1.0, 0.0, 1.0);
+
+ for (int i = 0; i < 25; i++) {
+ if (sign(v[i].x) * sign(v[i].y) != v[i].z)
+ color = vec4(1.0, 0.0, 0.0, 1.0);
+ }
+
+ gl_Position = gl_Vertex;
+}
+
+[fragment shader]
+varying vec4 color;
+
+void main()
+{
+ gl_FragColor = color;
+}
+
+[test]
+uniform vec4 v[0] 5.0 5.0 1.0 0.0
+uniform vec4 v[1] 5.0 -5.0 -1.0 0.0
+uniform vec4 v[2] 5.0 0.0 0.0 0.0
+uniform vec4 v[3] 5.0 0x7f000000 1.0 0.0
+uniform vec4 v[4] 5.0 0xff000000 -1.0 0.0
+
+uniform vec4 v[5] -5.0 5.0 -1.0 0.0
+uniform vec4 v[6] -5.0 -5.0 1.0 0.0
+uniform vec4 v[7] -5.0 0.0 0.0 0.0
+uniform vec4 v[8] -5.0 0x7f000000 -1.0 0.0
+uniform vec4 v[9] -5.0 0xff000000 1.0 0.0
+
+uniform vec4 v[10] 0.0 5.0 0.0 0.0
+uniform vec4 v[11] 0.0 -5.0 0.0 0.0
+uniform vec4 v[12] 0.0 0.0 0.0 0.0
+uniform vec4 v[13] 0.0 0x7f000000 0.0 0.0
+uniform vec4 v[14] 0.0 0xff000000 0.0 0.0
+
+uniform vec4 v[15] 0x7f000000 5.0 1.0 0.0
+uniform vec4 v[16] 0x7f000000 -5.0 -1.0 0.0
+uniform vec4 v[17] 0x7f000000 0.0 0.0 0.0
+uniform vec4 v[18] 0x7f000000 0x7f000000 1.0 0.0
+uniform vec4 v[19] 0x7f000000 0xff000000 -1.0 0.0
+
+uniform vec4 v[20] 0xff000000 5.0 -1.0 0.0
+uniform vec4 v[21] 0xff000000 -5.0 1.0 0.0
+uniform vec4 v[22] 0xff000000 0.0 0.0 0.0
+uniform vec4 v[23] 0xff000000 0x7f000000 -1.0 0.0
+uniform vec4 v[24] 0xff000000 0xff000000 1.0 0.0
+
+draw rect -1 -1 2 2
+probe rgb 1 1 0.0 1.0 0.0
--
2.14.4
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