llvm-project/llvm/test/ObjectYAML/DXContainer/RootSignature-Invalid-RootParameterOffset.yaml
Finn Plummer 6f0253b435
[DirectX][ObectYAML] Make RootParameterOffset and StaticSamplersOffset behaviour consistent (#155521)
This pr fixes some inconsistencies in behaviour of how we handle
`StaticSamplersOffset` with respect to DXC and `RootParameterOffset`.
Namely:

1. Make codegen of `RTS0` always compute the `StaticSamplersOffset`
regardless if there are any `StaticSampler`s. This is to be consistent
and produce an identical `DXContainer` as DXC.
2. Make the `StaticSamplersOffset` and `RootParametersOffset` optional
parameters in the yaml description. This means it will be used when it
is specified (which was not necassarily the case before).
3. Enforce that the provided `StaticSamplersOffset` and
`RootParametersOffset` in a yaml description match the computed value.

For more context see:
https://github.com/llvm/llvm-project/issues/155299.

Description of existing test updates updates:
- `CodeGen/DirectX/ContainerData`: Updated to codegen computed values
(previously unspecified)
- `llvm-objcopy/DXContainer`: Updated to `yaml2obj` computed values
(previously unspecified)
- `ObjectYAML/DXContainer`: Updated to `yaml2obj` computed values
(previously incorrect)
- `ObjectYAML/DXContainerYAMLTest`: Updated to `yaml2obj` computed
values (previously incorrect)

See newly added tests for testing of optional parameter functionality
and `StaticSamplersOffset` computation.

Resolves: https://github.com/llvm/llvm-project/issues/155299
2025-08-27 11:53:37 -07:00

24 lines
609 B
YAML

# RUN: not yaml2obj %s 2>&1 | FileCheck %s
# CHECK: error: Specified RootParametersOffset does not match required value: 24.
--- !dxcontainer
Header:
Hash: [ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0 ]
Version:
Major: 1
Minor: 0
PartCount: 1
PartOffsets: [ 60 ]
Parts:
- Name: RTS0
Size: 24
RootSignature:
Version: 2
NumRootParameters: 0
RootParametersOffset: 36
NumStaticSamplers: 0
StaticSamplersOffset: 24
Parameters: []