RasterizerOrder resource for spirv and metal. (#4175)

* RasterizerOrder resource for spirv and metal.

Also fixes the byte address buffer logic for metal.

* Fix.

* Delete commented lines.

---------

Co-authored-by: Jay Kwak <82421531+jkwak-work@users.noreply.github.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/metal/byte-address-buffer.slang b/tests/metal/byte-address-buffer.slang
new file mode 100644
index 000000000..f3169ebf4
--- /dev/null
+++ b/tests/metal/byte-address-buffer.slang
@@ -0,0 +1,30 @@
+//TEST:SIMPLE(filecheck=CHECK): -target metal
+//TEST:SIMPLE(filecheck=CHECK-ASM): -target metallib
+
+uniform RWStructuredBuffer<float> outputBuffer;
+
+RWByteAddressBuffer buffer;
+
+// CHECK-ASM: define void @main_kernel
+
+struct TestStruct
+{
+    uint8_t a;
+    float16_t h;
+    float b;
+    float4 c;
+    float4x3 d;
+}
+
+[numthreads(1,1,1)]
+void main_kernel(uint3 tid: SV_DispatchThreadID)
+{
+    // CHECK: uint [[WORD0:[a-zA-Z0-9_]+]] = as_type<uint>({{.*}}[(int(0))>>2]);
+    // CHECK: uint8_t [[A:[a-zA-Z0-9_]+]] = uint8_t([[WORD0]] >> int(0) & 255U);
+    // CHECK: uint [[WORD1:[a-zA-Z0-9_]+]] = as_type<uint>({{.*}}[(int(0))>>2]);
+    // CHECK: half [[H:[a-zA-Z0-9_]+]] = as_type<half>(uint16_t([[WORD1]] >> int(16) & 65535U));
+
+    // CHECK: {{.*}}[(int(128))>>2] = as_type<uint32_t>(({{.*}} & 4294967040U) | uint([[A]]) << int(0));
+    // CHECK: {{.*}}[(int(128))>>2] = as_type<uint32_t>(({{.*}} & 65535U) | uint(as_type<uint16_t>([[H]])) << int(16));
+    buffer.Store(128, buffer.Load<TestStruct>(0));
+}