Merge pull request #893 from csyonghe/master

Fix GLSL emit logic for select expr

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/cross-compile/vector-comparison.slang b/tests/cross-compile/vector-comparison.slang
new file mode 100644
index 000000000..d1fdcfd4a
--- /dev/null
+++ b/tests/cross-compile/vector-comparison.slang
@@ -0,0 +1,24 @@
+// vector-comparison.slang
+
+//TEST:CROSS_COMPILE:-target spirv-assembly -entry main -stage fragment
+
+// This test ensures that we cross-compile vector comparison operators
+// correctly to GLSL
+
+struct Param
+{
+    float4 a, b;
+};
+ParameterBlock<Param> params;
+float4 main() : SV_Target
+{
+    float4 v0 = params.a;
+    float4 v1 = params.b;
+    float4 result = v0 == v1 ? float4(2.0f) : float4(3.0f);
+    result += v0 < v1 ? float4(2.0f) : float4(3.0f);
+    result += v0 > v1 ? float4(2.0f) : float4(3.0f);
+    result += v0 <= v1 ? float4(2.0f) : float4(3.0f);
+    result += v0 >= v1 ? float4(2.0f) : float4(3.0f);
+    result += v0 != v1 ? float4(2.0f) : float4(3.0f);
+    return result;
+}
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