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-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index d071abd84..960ebf1a1 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -1845,6 +1845,15 @@ private:
static_assert(!unordered || type == Type::Float);
const Expression expr = GenerateBinaryInfix(operation, op, Type::Bool, type, type);
+
+ if constexpr (op.compare("!=") == 0 && type == Type::Float && !unordered) {
+ // GLSL's operator!=(float, float) doesn't seem be ordered. This happens on both AMD's
+ // and Nvidia's proprietary stacks. Manually force an ordered comparison.
+ return {fmt::format("({} && !isnan({}) && !isnan({}))", expr.AsBool(),
+ VisitOperand(operation, 0).AsFloat(),
+ VisitOperand(operation, 1).AsFloat()),
+ Type::Bool};
+ }
if constexpr (!unordered) {
return expr;
}