diff --git a/test/Feature/SpecializationConstant/spec_const.f64.test b/test/Feature/SpecializationConstant/spec_const.f64.test
new file mode 100644
index 000000000..44c0c9de5
--- /dev/null
+++ b/test/Feature/SpecializationConstant/spec_const.f64.test
@@ -0,0 +1,43 @@
+#--- simple_64bit.hlsl
+// double
+[[vk::constant_id(0)]]
+const double spec_double = 0.0;
+RWStructuredBuffer<double> OutDouble : register(u0, space0);
+
+[numthreads(1,1,1)]
+void main(uint GI : SV_GroupIndex) {
+  OutDouble[GI] = spec_double;
+}
+#--- simple_64bit.yaml
+---
+Shaders:
+  - Stage: Compute
+    Entry: main
+    DispatchSize: [1, 1, 1]
+    SpecializationConstants:
+      - { ConstantID: 0, Value: 2.718, Type: Float64 }
+Buffers:
+  - { Name: OutDouble, Format: Float64, Stride: 8, FillSize: 8 }
+DescriptorSets:
+  - Resources:
+    - Name: OutDouble
+      Kind: RWStructuredBuffer
+      DirectXBinding: { Register: 0, Space: 0 }
+      VulkanBinding: { Binding: 0 }
+...
+#--- end
+
+# REQUIRES: Vulkan
+# REQUIRES: Double
+
+# Bug https://github.com/microsoft/DirectXShaderCompiler/issues/7886
+# XFAIL: DXC
+
+# Bug https://github.com/llvm/offload-test-suite/issues/554
+# XFAIL: QC
+
+# RUN: split-file %s %t
+# RUN: %dxc_target -T cs_6_2 -enable-16bit-types -Fo %t.o %t/simple_64bit.hlsl
+# RUN: %offloader %t/simple_64bit.yaml %t.o | FileCheck %s
+
+# CHECK: Data: [ {{2.718}} ]
diff --git a/test/Feature/SpecializationConstant/spec_const_other_sizes.test b/test/Feature/SpecializationConstant/spec_const_other_sizes.test
index e7060e427..f4d4e31e7 100644
--- a/test/Feature/SpecializationConstant/spec_const_other_sizes.test
+++ b/test/Feature/SpecializationConstant/spec_const_other_sizes.test
@@ -1,8 +1,4 @@
 #--- simple_64bit.hlsl
-// double
-[[vk::constant_id(0)]]
-const double spec_double = 0.0;
-RWStructuredBuffer<double> OutDouble : register(u0, space0);
 
 // short
 [[vk::constant_id(1)]]
@@ -16,7 +12,6 @@ RWStructuredBuffer<uint16_t> OutUShort : register(u2, space0);
 
 [numthreads(1,1,1)]
 void main(uint GI : SV_GroupIndex) {
-  OutDouble[GI] = spec_double;
   OutShort[GI] = spec_short;
   OutUShort[GI] = spec_ushort;
 }
@@ -27,19 +22,13 @@ Shaders:
     Entry: main
     DispatchSize: [1, 1, 1]
     SpecializationConstants:
-      - { ConstantID: 0, Value: 2.718, Type: Float64 }
       - { ConstantID: 1, Value: 123, Type: Int16 }
       - { ConstantID: 2, Value: 456, Type: UInt16 }
 Buffers:
-  - { Name: OutDouble, Format: Float64, Stride: 8, FillSize: 8 }
   - { Name: OutShort, Format: Int16, Stride: 2, FillSize: 2 }
   - { Name: OutUShort, Format: UInt16, Stride: 2, FillSize: 2 }
 DescriptorSets:
   - Resources:
-    - Name: OutDouble
-      Kind: RWStructuredBuffer
-      DirectXBinding: { Register: 0, Space: 0 }
-      VulkanBinding: { Binding: 0 }
     - Name: OutShort
       Kind: RWStructuredBuffer
       DirectXBinding: { Register: 1, Space: 0 }
@@ -63,6 +52,5 @@ DescriptorSets:
 # RUN: %dxc_target -T cs_6_2 -enable-16bit-types -Fo %t.o %t/simple_64bit.hlsl
 # RUN: %offloader %t/simple_64bit.yaml %t.o | FileCheck %s
 
-# CHECK: Data: [ {{2.718}} ]
 # CHECK: Data: [ 123 ]
 # CHECK: Data: [ 456 ]