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Support optionally building AMD64 with tailcalling #346

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Support optionally building AMD64 with tailcalling #346

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8453063
support optionally building AMD64 with tailcalling
chris-eibl Feb 26, 2026
c49abd8
apply Steve's fix
chris-eibl Feb 26, 2026
7abd79b
Different approach. Does this work out?
chris-eibl Feb 26, 2026
6aa18d5
Update windows-release/azure-pipelines.yml
chris-eibl Feb 26, 2026
33a030b
Update windows-release/stage-build.yml
chris-eibl Feb 26, 2026
6db61cb
$(TailcallingOption) not needed anymore
chris-eibl Feb 26, 2026
873ebb7
Update windows-release/azure-pipelines.yml
chris-eibl Feb 27, 2026
0f5d98a
Tailcalling -> TailCalling
chris-eibl Feb 27, 2026
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11 changes: 9 additions & 2 deletions windows-release/azure-pipelines.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -42,6 +42,10 @@ parameters:
displayName: "Signature description"
type: string
default: '(default)'
- name: DoTailCalling
displayName: "Build with tail-calling support (3.15 and later)"
type: boolean
default: false
- name: DoJIT
displayName: "Build the JIT compiler (3.14 and later)"
type: boolean
Expand Down Expand Up @@ -161,7 +165,7 @@ stages:
- stage: Build
displayName: Build binaries
pool:
vmImage: ${{ parameters.vmImage }}
vmImage: ${{ iif(eq(parameters.DoTailCalling, 'true'), 'windows-2025-vs2026', parameters.vmImage) }}
jobs:
- template: start-arm64vm.yml
parameters:
Expand All @@ -186,7 +190,10 @@ stages:
ExtraOptionsFreethreaded: '--disable-gil --experimental-jit-off'
${{ else }}:
ExtraOptionsFreethreaded: '--disable-gil --experimental-jit'

${{ if ne(parameters.DoTailCalling, 'true') }}:
TailCallingOption: ''
${{ else }}:
TailCallingOption: '--tail-call-interp'
- stage: Sign
displayName: Sign binaries
dependsOn: Build
Expand Down
9 changes: 5 additions & 4 deletions windows-release/stage-build.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ parameters:
ToBeSigned: false
ExtraOptions: ''
ExtraOptionsFreethreaded: '--disable-gil'
TailCallingOption: ''

jobs:
- job: Build_Docs
Expand Down Expand Up @@ -71,7 +72,7 @@ jobs:
Platform: x64
Configuration: Release
_HostPython: .\python
ExtraOptions: ${{ parameters.ExtraOptions }}
ExtraOptions: ${{ parameters.ExtraOptions }} ${{ parameters.TailCallingOption }}
${{ if eq(parameters.ToBeSigned, 'true') }}:
Artifact: unsigned_amd64
${{ else }}:
Expand Down Expand Up @@ -131,7 +132,7 @@ jobs:
Platform: x64
Configuration: Release
_HostPython: .\python
ExtraOptions: ${{ parameters.ExtraOptionsFreethreaded }}
ExtraOptions: ${{ parameters.ExtraOptionsFreethreaded }} ${{ parameters.TailCallingOption }}
${{ if eq(parameters.ToBeSigned, 'true') }}:
Artifact: unsigned_amd64_t
${{ else }}:
Expand Down Expand Up @@ -185,7 +186,7 @@ jobs:
Platform: x64
_HostPython: .\python
PythonExePattern: python.exe
ExtraOptions: ${{ parameters.ExtraOptions }}
ExtraOptions: ${{ parameters.ExtraOptions }} ${{ parameters.TailCallingOption }}
${{ if eq(parameters.ToBeSigned, 'true') }}:
Artifact: unsigned_amd64
${{ else }}:
Expand All @@ -197,7 +198,7 @@ jobs:
Platform: x64
_HostPython: .\python
PythonExePattern: python3*t.exe
ExtraOptions: ${{ parameters.ExtraOptionsFreethreaded }}
ExtraOptions: ${{ parameters.ExtraOptionsFreethreaded }} ${{ parameters.TailCallingOption }}
${{ if eq(parameters.ToBeSigned, 'true') }}:
Artifact: unsigned_amd64_t
${{ else }}:
Expand Down
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