diff --git a/src/tint/lang/spirv/reader/parser/BUILD.bazel b/src/tint/lang/spirv/reader/parser/BUILD.bazel
index 48335aa..a929fc7 100644
--- a/src/tint/lang/spirv/reader/parser/BUILD.bazel
+++ b/src/tint/lang/spirv/reader/parser/BUILD.bazel
@@ -96,6 +96,7 @@
     "composite_test.cc",
     "constant_test.cc",
     "convert_test.cc",
+    "execution_mode_test.cc",
     "function_test.cc",
     "helper_test.h",
     "image_sampler_test.cc",
diff --git a/src/tint/lang/spirv/reader/parser/BUILD.cmake b/src/tint/lang/spirv/reader/parser/BUILD.cmake
index c832152..060efd6 100644
--- a/src/tint/lang/spirv/reader/parser/BUILD.cmake
+++ b/src/tint/lang/spirv/reader/parser/BUILD.cmake
@@ -106,6 +106,7 @@
   lang/spirv/reader/parser/composite_test.cc
   lang/spirv/reader/parser/constant_test.cc
   lang/spirv/reader/parser/convert_test.cc
+  lang/spirv/reader/parser/execution_mode_test.cc
   lang/spirv/reader/parser/function_test.cc
   lang/spirv/reader/parser/helper_test.h
   lang/spirv/reader/parser/image_sampler_test.cc
diff --git a/src/tint/lang/spirv/reader/parser/BUILD.gn b/src/tint/lang/spirv/reader/parser/BUILD.gn
index 949d77a..14400da 100644
--- a/src/tint/lang/spirv/reader/parser/BUILD.gn
+++ b/src/tint/lang/spirv/reader/parser/BUILD.gn
@@ -103,6 +103,7 @@
         "composite_test.cc",
         "constant_test.cc",
         "convert_test.cc",
+        "execution_mode_test.cc",
         "function_test.cc",
         "helper_test.h",
         "image_sampler_test.cc",
diff --git a/src/tint/lang/spirv/reader/parser/execution_mode_test.cc b/src/tint/lang/spirv/reader/parser/execution_mode_test.cc
new file mode 100644
index 0000000..2b037cd
--- /dev/null
+++ b/src/tint/lang/spirv/reader/parser/execution_mode_test.cc
@@ -0,0 +1,150 @@
+// Copyright 2025 The Dawn & Tint Authors
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this
+//    list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its
+//    contributors may be used to endorse or promote products derived from
+//    this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "src/tint/lang/spirv/reader/parser/helper_test.h"
+
+namespace tint::spirv::reader {
+namespace {
+
+TEST_F(SpirvParserDeathTest, ExecutionMode_DepthGreater) {
+    auto spirv_asm = R"(
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main"
+               OpExecutionMode %main OriginUpperLeft
+               OpExecutionMode %main DepthGreater
+               OpName %main "main"
+       %void = OpTypeVoid
+          %6 = OpTypeFunction %void
+       %main = OpFunction %void None %6
+         %15 = OpLabel
+               OpReturn
+               OpFunctionEnd
+)";
+
+    EXPECT_DEATH_IF_SUPPORTED(
+        {
+            auto binary = Assemble(spirv_asm, SPV_ENV_UNIVERSAL_1_0);
+            if (binary != Success) {
+                return;
+            }
+
+            [[maybe_unused]] auto res =
+                Parse(Slice(binary.Get().data(), binary.Get().size()), options);
+        },
+        "ExecutionMode DepthGreater is not supported");
+}
+
+TEST_F(SpirvParserDeathTest, ExecutionMode_DepthLess) {
+    auto spirv_asm = R"(
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main"
+               OpExecutionMode %main OriginUpperLeft
+               OpExecutionMode %main DepthLess
+               OpName %main "main"
+       %void = OpTypeVoid
+          %6 = OpTypeFunction %void
+       %main = OpFunction %void None %6
+         %15 = OpLabel
+               OpReturn
+               OpFunctionEnd
+)";
+
+    EXPECT_DEATH_IF_SUPPORTED(
+        {
+            auto binary = Assemble(spirv_asm, SPV_ENV_UNIVERSAL_1_0);
+            if (binary != Success) {
+                return;
+            }
+
+            [[maybe_unused]] auto res =
+                Parse(Slice(binary.Get().data(), binary.Get().size()), options);
+        },
+        "ExecutionMode DepthLess is not supported");
+}
+
+TEST_F(SpirvParserDeathTest, ExecutionMode_DepthUnchanged) {
+    auto spirv_asm = R"(
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main"
+               OpExecutionMode %main OriginUpperLeft
+               OpExecutionMode %main DepthUnchanged
+               OpName %main "main"
+       %void = OpTypeVoid
+          %6 = OpTypeFunction %void
+       %main = OpFunction %void None %6
+         %15 = OpLabel
+               OpReturn
+               OpFunctionEnd
+)";
+
+    EXPECT_DEATH_IF_SUPPORTED(
+        {
+            auto binary = Assemble(spirv_asm, SPV_ENV_UNIVERSAL_1_0);
+            if (binary != Success) {
+                return;
+            }
+
+            [[maybe_unused]] auto res =
+                Parse(Slice(binary.Get().data(), binary.Get().size()), options);
+        },
+        "ExecutionMode DepthUnchanged is not supported");
+}
+
+TEST_F(SpirvParserDeathTest, ExecutionMode_EarlyFragmentTest) {
+    auto spirv_asm = R"(
+               OpCapability Shader
+               OpMemoryModel Logical GLSL450
+               OpEntryPoint Fragment %main "main"
+               OpExecutionMode %main OriginUpperLeft
+               OpExecutionMode %main EarlyFragmentTests
+               OpName %main "main"
+       %void = OpTypeVoid
+          %6 = OpTypeFunction %void
+       %main = OpFunction %void None %6
+         %15 = OpLabel
+               OpReturn
+               OpFunctionEnd
+)";
+
+    EXPECT_DEATH_IF_SUPPORTED(
+        {
+            auto binary = Assemble(spirv_asm, SPV_ENV_UNIVERSAL_1_0);
+            if (binary != Success) {
+                return;
+            }
+
+            [[maybe_unused]] auto res =
+                Parse(Slice(binary.Get().data(), binary.Get().size()), options);
+        },
+        "ExecutionMode EarlyFragmentTests is not supported");
+}
+
+}  // namespace
+}  // namespace tint::spirv::reader
diff --git a/src/tint/lang/spirv/reader/parser/parser.cc b/src/tint/lang/spirv/reader/parser/parser.cc
index c3b5c86..2436fe4 100644
--- a/src/tint/lang/spirv/reader/parser/parser.cc
+++ b/src/tint/lang/spirv/reader/parser/parser.cc
@@ -1508,6 +1508,18 @@
                         b_.Constant(u32(execution_mode.GetSingleWordInOperand(3))),
                         b_.Constant(u32(execution_mode.GetSingleWordInOperand(4))));
                     break;
+                case spv::ExecutionMode::DepthGreater:
+                    TINT_ICE() << "ExecutionMode DepthGreater is not supported in WGSL";
+                    /* Ice aborts, so this doesn't fallthrough */
+                case spv::ExecutionMode::DepthLess:
+                    TINT_ICE() << "ExecutionMode DepthLess is not supported in WGSL";
+                    /* Ice aborts, so this doesn't fallthrough */
+                case spv::ExecutionMode::DepthUnchanged:
+                    TINT_ICE() << "ExecutionMode DepthUnchanged is not supported in WGSL";
+                    /* Ice aborts, so this doesn't fallthrough */
+                case spv::ExecutionMode::EarlyFragmentTests:
+                    TINT_ICE() << "ExecutionMode EarlyFragmentTests is not supported in WGSL";
+                    /* Ice aborts, so this doesn't fallthrough */
                 case spv::ExecutionMode::DepthReplacing:
                 case spv::ExecutionMode::OriginUpperLeft:
                     // These are ignored as they are implicitly supported by Tint IR.
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_equal/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_equal/1.spvasm
deleted file mode 100644
index c63fe28..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_equal/1.spvasm
+++ /dev/null
@@ -1,31 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %color_out %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main EarlyFragmentTests
-               OpExecutionMode %main DepthReplacing
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %color_out "color_out"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %color_out Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-  %color_out = OpVariable %_ptr_Output_v4float Output
-    %float_1 = OpConstant %float 1
-    %float_0 = OpConstant %float 0
-         %12 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_300000012 = OpConstant %float 0.300000012
-       %main = OpFunction %void None %6
-         %15 = OpLabel
-               OpStore %color_out %12
-               OpStore %gl_FragDepth %float_0_300000012
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_greater/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_greater/1.spvasm
deleted file mode 100644
index 490b9ef..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_greater/1.spvasm
+++ /dev/null
@@ -1,32 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %color_out %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main EarlyFragmentTests
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthGreater
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %color_out "color_out"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %color_out Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-  %color_out = OpVariable %_ptr_Output_v4float Output
-    %float_1 = OpConstant %float 1
-    %float_0 = OpConstant %float 0
-         %12 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_400000006 = OpConstant %float 0.400000006
-       %main = OpFunction %void None %6
-         %15 = OpLabel
-               OpStore %color_out %12
-               OpStore %gl_FragDepth %float_0_400000006
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_less_or_equal/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_less_or_equal/1.spvasm
deleted file mode 100644
index c195cb3..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_less_or_equal/1.spvasm
+++ /dev/null
@@ -1,31 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %color_out %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main EarlyFragmentTests
-               OpExecutionMode %main DepthReplacing
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %color_out "color_out"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %color_out Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-  %color_out = OpVariable %_ptr_Output_v4float Output
-    %float_1 = OpConstant %float 1
-    %float_0 = OpConstant %float 0
-         %12 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_699999988 = OpConstant %float 0.699999988
-       %main = OpFunction %void None %6
-         %15 = OpLabel
-               OpStore %color_out %12
-               OpStore %gl_FragDepth %float_0_699999988
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_not_equal/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_not_equal/1.spvasm
deleted file mode 100644
index 2667aee..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/early_fragment/depth_not_equal/1.spvasm
+++ /dev/null
@@ -1,31 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %color_out %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main EarlyFragmentTests
-               OpExecutionMode %main DepthReplacing
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %color_out "color_out"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %color_out Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-  %color_out = OpVariable %_ptr_Output_v4float Output
-    %float_1 = OpConstant %float 1
-    %float_0 = OpConstant %float 0
-         %12 = OpConstantComposite %v4float %float_1 %float_0 %float_0 %float_1
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-  %float_0_5 = OpConstant %float 0.5
-       %main = OpFunction %void None %6
-         %15 = OpLabel
-               OpStore %color_out %12
-               OpStore %gl_FragDepth %float_0_5
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthgreater_2/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthgreater_2/1.spvasm
deleted file mode 100644
index ff79f72..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthgreater_2/1.spvasm
+++ /dev/null
@@ -1,30 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %outColor %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthGreater
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %outColor "outColor"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %outColor Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-   %outColor = OpVariable %_ptr_Output_v4float Output
-    %float_0 = OpConstant %float 0
-         %11 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_300000012 = OpConstant %float 0.300000012
-       %main = OpFunction %void None %6
-         %14 = OpLabel
-               OpStore %outColor %11
-               OpStore %gl_FragDepth %float_0_300000012
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthless_0/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthless_0/1.spvasm
deleted file mode 100644
index e503380..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthless_0/1.spvasm
+++ /dev/null
@@ -1,30 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %outColor %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthLess
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %outColor "outColor"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %outColor Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-   %outColor = OpVariable %_ptr_Output_v4float Output
-    %float_0 = OpConstant %float 0
-         %11 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_100000001 = OpConstant %float 0.100000001
-       %main = OpFunction %void None %6
-         %14 = OpLabel
-               OpStore %outColor %11
-               OpStore %gl_FragDepth %float_0_100000001
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthless_2/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthless_2/1.spvasm
deleted file mode 100644
index 29ea362..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthless_2/1.spvasm
+++ /dev/null
@@ -1,30 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %outColor %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthLess
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %outColor "outColor"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %outColor Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-   %outColor = OpVariable %_ptr_Output_v4float Output
-    %float_0 = OpConstant %float 0
-         %11 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_600000024 = OpConstant %float 0.600000024
-       %main = OpFunction %void None %6
-         %14 = OpLabel
-               OpStore %outColor %11
-               OpStore %gl_FragDepth %float_0_600000024
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_0/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_0/1.spvasm
deleted file mode 100644
index 544b4ff..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_0/1.spvasm
+++ /dev/null
@@ -1,38 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %outColor %gl_FragDepth %gl_FragCoord
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthUnchanged
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %outColor "outColor"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpName %gl_FragCoord "gl_FragCoord"
-               OpDecorate %outColor Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-               OpDecorate %gl_FragCoord BuiltIn FragCoord
-       %void = OpTypeVoid
-          %7 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-   %outColor = OpVariable %_ptr_Output_v4float Output
-    %float_0 = OpConstant %float 0
-         %12 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%_ptr_Input_v4float = OpTypePointer Input %v4float
-%gl_FragCoord = OpVariable %_ptr_Input_v4float Input
-       %uint = OpTypeInt 32 0
-     %uint_2 = OpConstant %uint 2
-%_ptr_Input_float = OpTypePointer Input %float
-       %main = OpFunction %void None %7
-         %18 = OpLabel
-               OpStore %outColor %12
-         %19 = OpAccessChain %_ptr_Input_float %gl_FragCoord %uint_2
-         %20 = OpLoad %float %19
-               OpStore %gl_FragDepth %20
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_2/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_2/1.spvasm
deleted file mode 100644
index 65f7b45..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_2/1.spvasm
+++ /dev/null
@@ -1,30 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %outColor %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthUnchanged
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %outColor "outColor"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %outColor Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-   %outColor = OpVariable %_ptr_Output_v4float Output
-    %float_0 = OpConstant %float 0
-         %11 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_699999988 = OpConstant %float 0.699999988
-       %main = OpFunction %void None %6
-         %14 = OpLabel
-               OpStore %outColor %11
-               OpStore %gl_FragDepth %float_0_699999988
-               OpReturn
-               OpFunctionEnd
diff --git a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_3/1.spvasm b/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_3/1.spvasm
deleted file mode 100644
index 0842b2d..0000000
--- a/test/tint/vk-gl-cts/spirv_assembly/instruction/graphics/execution_mode/depthunchanged_3/1.spvasm
+++ /dev/null
@@ -1,30 +0,0 @@
-               OpCapability Shader
-          %1 = OpExtInstImport "GLSL.std.450"
-               OpMemoryModel Logical GLSL450
-               OpEntryPoint Fragment %main "main" %outColor %gl_FragDepth
-               OpExecutionMode %main OriginUpperLeft
-               OpExecutionMode %main DepthReplacing
-               OpExecutionMode %main DepthUnchanged
-               OpSource GLSL 430
-               OpName %main "main"
-               OpName %outColor "outColor"
-               OpName %gl_FragDepth "gl_FragDepth"
-               OpDecorate %outColor Location 0
-               OpDecorate %gl_FragDepth BuiltIn FragDepth
-       %void = OpTypeVoid
-          %6 = OpTypeFunction %void
-      %float = OpTypeFloat 32
-    %v4float = OpTypeVector %float 4
-%_ptr_Output_v4float = OpTypePointer Output %v4float
-   %outColor = OpVariable %_ptr_Output_v4float Output
-    %float_0 = OpConstant %float 0
-         %11 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
-%_ptr_Output_float = OpTypePointer Output %float
-%gl_FragDepth = OpVariable %_ptr_Output_float Output
-%float_0_400000006 = OpConstant %float 0.400000006
-       %main = OpFunction %void None %6
-         %14 = OpLabel
-               OpStore %outColor %11
-               OpStore %gl_FragDepth %float_0_400000006
-               OpReturn
-               OpFunctionEnd