Description
- Implement
DeviceMemoryBarrierWithGroupSync
clang builtin,LinkDeviceMemoryBarrierWithGroupSync
clang builtin withhlsl_intrinsics.h
Add sema checks forDeviceMemoryBarrierWithGroupSync
toCheckHLSLBuiltinFunctionCall
inSemaChecking.cpp
Add codegen forDeviceMemoryBarrierWithGroupSync
toEmitHLSLBuiltinExpr
inCGBuiltin.cpp
Add codegen tests toclang/test/CodeGenHLSL/builtins/DeviceMemoryBarrierWithGroupSync.hlsl
Add sema tests toclang/test/SemaHLSL/BuiltIns/DeviceMemoryBarrierWithGroupSync-errors.hlsl
Create theint_dx_DeviceMemoryBarrierWithGroupSync
intrinsic inIntrinsicsDirectX.td
Create theDXILOpMapping
ofint_dx_DeviceMemoryBarrierWithGroupSync
to80
inDXIL.td
Create theDeviceMemoryBarrierWithGroupSync.ll
andDeviceMemoryBarrierWithGroupSync_errors.ll
tests inllvm/test/CodeGen/DirectX/
Create theint_spv_DeviceMemoryBarrierWithGroupSync
intrinsic inIntrinsicsSPIRV.td
In SPIRVInstructionSelector.cpp create theDeviceMemoryBarrierWithGroupSync
lowering and map it toint_spv_DeviceMemoryBarrierWithGroupSync
inSPIRVInstructionSelector::selectIntrinsic
.Create SPIR-V backend test case inllvm/test/CodeGen/SPIRV/hlsl-intrinsics/DeviceMemoryBarrierWithGroupSync.ll
DirectX
DXIL Opcode | DXIL OpName | Shader Model | Shader Stages |
---|---|---|---|
80 | Barrier | 6.0 | () |
SPIR-V
OpControlBarrier:
Description:
Wait for all active invocations within the specified
Scope to reach the current point of execution.
All active invocations within Execution scope reach
this point of execution before any invocation proceeds beyond it.
When Execution is Workgroup or larger, behavior is undefined
unless all invocations within Execution execute the same dynamic
instance of this instruction.
If Semantics is not None, this instruction also serves as an
OpMemoryBarrier instruction, and also performs
and adheres to the description and semantics of an OpMemoryBarrier
instruction with the same Memory and Semantics operands. This allows
atomically specifying both a control barrier and a memory barrier (that
is, without needing two instructions). If Semantics is None,
Memory is ignored.
Before version 1.3, it is only valid to use this instruction with
TessellationControl, GLCompute, or Kernel execution
models. There is no such restriction starting with
version 1.3.
If used with the TessellationControl execution
model, it also implicitly synchronizes the Output
Storage Class: Writes to Output variables
performed by any invocation executed prior to a OpControlBarrier are
visible to any other invocation proceeding beyond that
OpControlBarrier.
Word Count | Opcode | Results | Operands | |
---|---|---|---|---|
4 |
224 |
Scope <id> |
Scope <id> |
Memory Semantics
<id> |
Test Case(s)
Example 1
//dxc DeviceMemoryBarrierWithGroupSync_test.hlsl -T lib_6_8 -enable-16bit-types -O0
export void fn() {
return DeviceMemoryBarrierWithGroupSync();
}
HLSL:
Blocks execution of all threads in a group until all device memory accesses have been completed and all threads in the group have reached this call.
Syntax
void DeviceMemoryBarrierWithGroupSync(void);
Parameters
This function has no parameters.
Return value
This function does not return a value.
Remarks
The behavior of calls to this function that are within diverging branches of a thread group are undefined.
Minimum Shader Model
This function is supported in the following shader models.
Shader Model | Supported |
---|---|
Shader Model 5 and higher shader models | yes |
This function is supported in the following types of shaders:
Vertex | Hull | Domain | Geometry | Pixel | Compute |
---|---|---|---|---|---|
x |
See also
Metadata
Metadata
Assignees
Type
Projects
Status
Activity
Barrier
HLSL Function #99234