Detect and deduplicate read-only resource access. (#2680)

* Detect and deduplicate read-only resource access.

* Fix tests.

* Fix tests.

---------

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

2 files changed, 8 insertions, 12 deletions

diff --git a/tests/cross-compile/array-of-buffers.slang.glsl b/tests/cross-compile/array-of-buffers.slang.glsl
index 21961afd1..4ff86f36e 100644
--- a/tests/cross-compile/array-of-buffers.slang.glsl
+++ b/tests/cross-compile/array-of-buffers.slang.glsl
@@ -36,11 +36,9 @@ out vec4 _S6;
 
 void main()
 {
-    vec4 _S7 = cb_0[C_0._data.index_0]._data.f_0;
-    S_0 _S8 = ((sb1_0[C_0._data.index_0])._data[(C_0._data.index_0)]);
-    vec4 _S9 = _S7 + _S8.f_0;
-    vec4 _S10 = _S9 + ((sb2_0[C_0._data.index_0])._data[(C_0._data.index_0)]);
-    uint _S11 = ((bb_0[C_0._data.index_0])._data[(int(C_0._data.index_0 * 4U))/4]);
-    _S6 = _S10 + vec4(float(_S11));
+    S_0 _S7 = ((sb1_0[C_0._data.index_0])._data[(C_0._data.index_0)]);
+    vec4 _S8 = cb_0[C_0._data.index_0]._data.f_0 + _S7.f_0;
+    uint _S9 = ((bb_0[C_0._data.index_0])._data[(int(C_0._data.index_0 * 4U))/4]);
+    _S6 = _S8 + ((sb2_0[C_0._data.index_0])._data[(C_0._data.index_0)]) + vec4(float(_S9));
     return;
 }
diff --git a/tests/cross-compile/array-of-buffers.slang.hlsl b/tests/cross-compile/array-of-buffers.slang.hlsl
index 960957789..e709d323a 100644
--- a/tests/cross-compile/array-of-buffers.slang.hlsl
+++ b/tests/cross-compile/array-of-buffers.slang.hlsl
@@ -27,10 +27,8 @@ RWStructuredBuffer<float4 >  sb2_0[int(5)] : register(u0);
 ByteAddressBuffer  bb_0[int(6)] : register(t4);
 float4 main() : SV_TARGET
 {
-    float4 _S1 = cb_0[C_0.index_0].f_0;
-    S_0 _S2 = sb1_0[C_0.index_0][C_0.index_0];
-    float4 _S3 = _S1 + _S2.f_0;
-    float4 _S4 = _S3 + sb2_0[C_0.index_0][C_0.index_0];
-    uint _S5 = bb_0[C_0.index_0].Load(int(C_0.index_0 * 4U));
-    return _S4 + (float4)float(_S5);
+    S_0 _S1 = sb1_0[C_0.index_0][C_0.index_0];
+    float4 _S2 = cb_0[C_0.index_0].f_0 + _S1.f_0;
+    uint _S3 = bb_0[C_0.index_0].Load(int(C_0.index_0 * 4U));
+    return _S2 + sb2_0[C_0.index_0][C_0.index_0] + (float4)float(_S3);
 }