Merge pull request #655 from KhronosGroup/fix-6432018-08-07

MSL: Properly support passing parameters by value.

1 files changed, 22 insertions, 0 deletions

diff --git a/reference/opt/shaders-msl/asm/frag/pass-by-value.asm.frag b/reference/opt/shaders-msl/asm/frag/pass-by-value.asm.frag
new file mode 100644
index 00000000..3858f6da
--- /dev/null
+++ b/reference/opt/shaders-msl/asm/frag/pass-by-value.asm.frag
@@ -0,0 +1,22 @@
+#include <metal_stdlib>
+#include <simd/simd.h>
+
+using namespace metal;
+
+struct Registers
+{
+    float foo;
+};
+
+struct main0_out
+{
+    float FragColor [[color(0)]];
+};
+
+fragment main0_out main0(constant Registers& registers [[buffer(0)]])
+{
+    main0_out out = {};
+    out.FragColor = 10.0 + registers.foo;
+    return out;
+}
+