diff --git a/tests/d3d12.c b/tests/d3d12.c
index 0db89708..2cea63af 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -3691,6 +3691,29 @@ static void test_shader_instructions(void)
         0x00000000, 0x0100003e,
     };
     static const D3D12_SHADER_BYTECODE ps_dot2 = {ps_dot2_code, sizeof(ps_dot2_code)};
+    static const DWORD ps_eq_code[] =
+    {
+#if 0
+        float4 src0;
+        float4 src1;
+
+        void main(out float4 dst : SV_Target)
+        {
+            dst = (uint4)0;
+            if (src0.x == src1.x)
+                dst.x = asfloat(0xffffffff);
+        }
+#endif
+        0x43425844, 0x7bce1728, 0xa7d5d0f0, 0xaef5bc00, 0x7bb6b161, 0x00000001, 0x000000e8, 0x00000003,
+        0x0000002c, 0x0000003c, 0x00000070, 0x4e475349, 0x00000008, 0x00000000, 0x00000008, 0x4e47534f,
+        0x0000002c, 0x00000001, 0x00000008, 0x00000020, 0x00000000, 0x00000000, 0x00000003, 0x00000000,
+        0x0000000f, 0x545f5653, 0x65677261, 0xabab0074, 0x58454853, 0x00000070, 0x00000050, 0x0000001c,
+        0x0100086a, 0x04000059, 0x00208e46, 0x00000000, 0x00000002, 0x03000065, 0x001020f2, 0x00000000,
+        0x09000018, 0x00102012, 0x00000000, 0x0020800a, 0x00000000, 0x00000000, 0x0020800a, 0x00000000,
+        0x00000001, 0x08000036, 0x001020e2, 0x00000000, 0x00004002, 0x00000000, 0x00000000, 0x00000000,
+        0x00000000, 0x0100003e,
+    };
+    static const D3D12_SHADER_BYTECODE ps_eq = {ps_eq_code, sizeof(ps_eq_code)};
     static const DWORD ps_ne_code[] =
     {
 #if 0
@@ -3759,6 +3782,14 @@ static void test_shader_instructions(void)
         {&ps_dot2, {{1.0f, 1.0f}, {1.0f, 1.0f}}, {{2.0f}}},
         {&ps_dot2, {{1.0f, 1.0f}, {2.0f, 3.0f}}, {{5.0f}}},
 
+        {&ps_eq, {{0.0f}, {0.0f}}, {.u = {0xffffffff}}},
+        {&ps_eq, {{1.0f}, {0.0f}}, {.u = {0x00000000}}},
+        {&ps_eq, {{0.0f}, {1.0f}}, {.u = {0x00000000}}},
+        {&ps_eq, {{1.0f}, {1.0f}}, {.u = {0xffffffff}}},
+        {&ps_eq, {{0.0f},  {NAN}}, {.u = {0x00000000}}},
+        {&ps_eq, {{1.0f},  {NAN}}, {.u = {0x00000000}}},
+        {&ps_eq, { {NAN},  {NAN}}, {.u = {0x00000000}}},
+
         {&ps_ne, {{0.0f}, {0.0f}}, {.u = {0x00000000}}},
         {&ps_ne, {{1.0f}, {0.0f}}, {.u = {0xffffffff}}},
         {&ps_ne, {{0.0f}, {1.0f}}, {.u = {0xffffffff}}},