[spirv-reader] Accept DepthReplacing
Bug: 42250952
Change-Id: I5fd5e2ebffa98185ecfab4ddf2290877154ae4fe
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/186962
Reviewed-by: Ben Clayton <bclayton@google.com>
diff --git a/src/tint/lang/spirv/reader/parser/function_test.cc b/src/tint/lang/spirv/reader/parser/function_test.cc
index d268ebb..d344063 100644
--- a/src/tint/lang/spirv/reader/parser/function_test.cc
+++ b/src/tint/lang/spirv/reader/parser/function_test.cc
@@ -96,6 +96,40 @@
)");
}
+TEST_F(SpirvParserTest, FragmentShader_DepthReplacing) {
+ EXPECT_IR(R"(
+ OpCapability Shader
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint Fragment %main "main" %depth
+ OpExecutionMode %main OriginUpperLeft
+ OpExecutionMode %main DepthReplacing
+ OpDecorate %depth BuiltIn FragDepth
+ %void = OpTypeVoid
+ %f32 = OpTypeFloat 32
+ %f32_42 = OpConstant %f32 42.0
+%_ptr_Output_f32 = OpTypePointer Output %f32
+ %depth = OpVariable %_ptr_Output_f32 Output
+ %ep_type = OpTypeFunction %void
+ %main = OpFunction %void None %ep_type
+ %main_start = OpLabel
+ OpStore %depth %f32_42
+ OpReturn
+ OpFunctionEnd
+)",
+ R"(
+$B1: { # root
+ %1:ptr<__out, f32, read_write> = var @builtin(frag_depth)
+}
+
+%main = @fragment func():void {
+ $B2: {
+ store %1, 42.0f
+ ret
+ }
+}
+)");
+}
+
TEST_F(SpirvParserTest, VertexShader) {
EXPECT_IR(R"(
OpCapability Shader
diff --git a/src/tint/lang/spirv/reader/parser/parser.cc b/src/tint/lang/spirv/reader/parser/parser.cc
index 04622de..d6c4f60 100644
--- a/src/tint/lang/spirv/reader/parser/parser.cc
+++ b/src/tint/lang/spirv/reader/parser/parser.cc
@@ -487,7 +487,9 @@
execution_mode.GetSingleWordInOperand(3),
execution_mode.GetSingleWordInOperand(4));
break;
+ case spv::ExecutionMode::DepthReplacing:
case spv::ExecutionMode::OriginUpperLeft:
+ // These are ignored as they are implicitly supported by Tint IR.
break;
default:
TINT_UNIMPLEMENTED() << "unhandled execution mode: " << mode;
