Fix parameter block loads in GLSL emit. (#2946)

* Fix parameter block loads in GLSL emit.

* Revert `[NoSideEffect]` declarations in DXR1.1 API.

* fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

2 files changed, 33 insertions, 0 deletions

diff --git a/tests/bugs/parameter-block-load.slang b/tests/bugs/parameter-block-load.slang
new file mode 100644
index 000000000..5828d021e
--- /dev/null
+++ b/tests/bugs/parameter-block-load.slang
@@ -0,0 +1,31 @@
+// Test reading parameter block from a member function.
+
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -vk -output-using-type
+//TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -dx11 -profile sm_5_0 -output-using-type
+
+//TEST_INPUT:ubuffer(data=[0], stride=4):out,name=gOutputBuffer
+RWStructuredBuffer<int> gOutputBuffer;
+
+struct MyParameters
+{
+    int x;
+    int y;
+    StructuredBuffer<float> buffer1;
+
+    RWStructuredBuffer<uint3> buffer;
+    int calc()
+    {
+        buffer[0].x = 3;
+        return x + y + buffer[0].x;
+    }
+}
+
+//TEST_INPUT: set gObj = new MyParameters{2, 3, new StructuredBuffer<float>{0.0}, new RWStructuredBuffer<uint3>{{0,0,0}}}
+ParameterBlock<MyParameters> gObj;
+
+[numthreads(1, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    float result = 0.0;
+    gOutputBuffer[dispatchThreadID.x] = gObj.calc();
+}
diff --git a/tests/bugs/parameter-block-load.slang.expected.txt b/tests/bugs/parameter-block-load.slang.expected.txt
new file mode 100644
index 000000000..e6751c365
--- /dev/null
+++ b/tests/bugs/parameter-block-load.slang.expected.txt
@@ -0,0 +1,2 @@
+type: int32_t
+8