Fix optimization pass not converging. (#2725)

* Fix optimization pass not converging.

* Fix.

* Fix tests.

---------

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

1 files changed, 7 insertions, 8 deletions

diff --git a/tests/bugs/vk-structured-buffer-load.hlsl.glsl b/tests/bugs/vk-structured-buffer-load.hlsl.glsl
index 1d056944a..0184e6ed5 100644
--- a/tests/bugs/vk-structured-buffer-load.hlsl.glsl
+++ b/tests/bugs/vk-structured-buffer-load.hlsl.glsl
@@ -7,8 +7,7 @@ layout(std430, binding = 1) readonly buffer _S1 {
 } gParamBlock_sbuf_0;
 float rcp_0(float x_0)
 {
-    float _S2 = 1.0 / x_0;
-    return _S2;
+    return 1.0 / x_0;
 }
 
 struct RayHitInfoPacked_0
@@ -16,35 +15,35 @@ struct RayHitInfoPacked_0
     vec4 PackedHitInfoA_0;
 };
 
-rayPayloadInNV RayHitInfoPacked_0 _S3;
+rayPayloadInNV RayHitInfoPacked_0 _S2;
 
 struct BuiltInTriangleIntersectionAttributes_0
 {
     vec2 barycentrics_0;
 };
 
-hitAttributeNV BuiltInTriangleIntersectionAttributes_0 _S4;
+hitAttributeNV BuiltInTriangleIntersectionAttributes_0 _S3;
 
 void main()
 {
     float HitT_0 = ((gl_RayTmaxNV));
-    _S3.PackedHitInfoA_0.x = HitT_0;
+    _S2.PackedHitInfoA_0.x = HitT_0;
 
     float offsfloat_0 = ((gParamBlock_sbuf_0)._data[(0)]);
     uint use_rcp_0 = 0U | uint(HitT_0 > 0.0);
     if(use_rcp_0 != 0U)
     {
-        _S3.PackedHitInfoA_0.y = rcp_0(offsfloat_0);
+        _S2.PackedHitInfoA_0.y = rcp_0(offsfloat_0);
     }
     else
     {
         if(use_rcp_0 > 0U&&offsfloat_0 == 0.0)
         {
-            _S3.PackedHitInfoA_0.y = (inversesqrt((offsfloat_0 + 1.0)));
+            _S2.PackedHitInfoA_0.y = (inversesqrt((offsfloat_0 + 1.0)));
         }
         else
         {
-            _S3.PackedHitInfoA_0.y = (inversesqrt((offsfloat_0)));
+            _S2.PackedHitInfoA_0.y = (inversesqrt((offsfloat_0)));
         }
     }
     return;