[Fix, Test] (DirectVulkan, ShaderTranspiler, TraceReplay): repair iterationRP's missing reduction barrier

Program 203 reuses prefixSumCache for a second subgroup reduction before every workgroup invocation has consumed the first result. Add a fingerprint-gated SPIR-V pass that inserts the missing Workgroup acquire-release barrier while preserving native subgroup operations.

Keep the repair opt-in behind MOBILEGL_ITERATIONRP_FIX_BARRIER, cover insertion, pass-through, and idempotence, and enable it together with the existing iterationRP subgroup repairs for the matching Linux and Android CI retraces.
This commit is contained in:
2026-08-19 23:42:17 -04:00
parent 5bd8ef01e5
commit c09045fe59
20 changed files with 583 additions and 2 deletions
+3
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@@ -420,6 +420,9 @@ jobs:
MOBILEGL_USE_ANGLE: ${{ matrix.backend.name == 'DirectGLES' && '1' || '0' }}
MOBILEGL_TRACE_ANGLE_VARIANT: ${{ matrix.case.name == 'minecraft-1.21.4-fabric-iris-bliss-in-world' && '90a62123d794' || 'ec889e6ea831' }}
MOBILEGL_MAGMA_R11G11B10F_FALLBACK: ${{ matrix.backend.name == 'DirectVulkan' && '1' || '0' }}
MOBILEGL_FIX_ITERATIONRP_SUBGROUP_SCRATCH: ${{ matrix.backend.name == 'DirectVulkan' && matrix.case.name == 'minecraft-1.21.4-fabric-iris-iterationrp-in-world' && '1' || '0' }}
MOBILEGL_DERIVE_NUM_SUBGROUPS: ${{ matrix.backend.name == 'DirectVulkan' && matrix.case.name == 'minecraft-1.21.4-fabric-iris-iterationrp-in-world' && '1' || '0' }}
MOBILEGL_ITERATIONRP_FIX_BARRIER: ${{ matrix.backend.name == 'DirectVulkan' && matrix.case.name == 'minecraft-1.21.4-fabric-iris-iterationrp-in-world' && '1' || '0' }}
run: |
apk_file="android-retrace-apks/MobileGL-plugin-trace-release-${GITHUB_SHA}.apk"
test -f "${apk_file}"
+6
View File
@@ -639,6 +639,12 @@ jobs:
if [ '${{ matrix.backend }}' = 'DirectVulkan' ]; then
export MOBILEGL_MAGMA_R11G11B10F_FALLBACK=1
fi
if [ '${{ matrix.backend }}' = 'DirectVulkan' ] \
&& [ '${{ matrix.case }}' = 'minecraft-1.21.4-fabric-iris-iterationrp-in-world' ]; then
export MOBILEGL_FIX_ITERATIONRP_SUBGROUP_SCRATCH=1
export MOBILEGL_DERIVE_NUM_SUBGROUPS=1
export MOBILEGL_ITERATIONRP_FIX_BARRIER=1
fi
# The blended depth-write quirk auto-enables only on Qualcomm, which no CI
# runner has, so force it on for the OIT case it exists to fix. ForceOn
# bypasses only the vendor gate, so this exercises the real strip on