ci: upload failing mlir

Author: avik-pal

.github/workflows/CI.yml

@@ -3,24 +3,24 @@ name: CI
 on:
   pull_request:
     paths:
-      - '.github/workflows/CI.yml'
-      - 'ext/**'
-      - 'lib/**'
-      - 'src/**'
-      - 'test/**'
-      - 'Project.toml'
+      - ".github/workflows/CI.yml"
+      - "ext/**"
+      - "lib/**"
+      - "src/**"
+      - "test/**"
+      - "Project.toml"
   push:
     branches:
       - main
       - release-*
-    tags: '*'
+    tags: "*"
     paths:
-      - '.github/workflows/CI.yml'
-      - 'ext/**'
-      - 'lib/**'
-      - 'src/**'
-      - 'test/**'
-      - 'Project.toml'
+      - ".github/workflows/CI.yml"
+      - "ext/**"
+      - "lib/**"
+      - "src/**"
+      - "test/**"
+      - "Project.toml"
 
 concurrency:
   # Skip intermediate builds: always.
@@ -37,8 +37,8 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.10'
-          - '1.11'
+          - "1.10"
+          - "1.11"
           # - 'nightly'
         os:
           - ubuntu-24.04
@@ -60,17 +60,17 @@ jobs:
           - false
         include:
           - os: ubuntu-24.04
-            version: '1.10'
+            version: "1.10"
             assertions: true
             test_group: core
             runtime: "PJRT"
           - os: ubuntu-24.04
-            version: '1.10'
+            version: "1.10"
             assertions: true
             test_group: neural_networks
             runtime: "PJRT"
           - os: ubuntu-24.04
-            version: '1.10'
+            version: "1.10"
             assertions: true
             test_group: integration
             runtime: "PJRT"
@@ -96,9 +96,9 @@ jobs:
       - uses: actions/checkout@v4
         if: ${{ matrix.assertions }}
         with:
-          repository: 'JuliaLang/julia'
+          repository: "JuliaLang/julia"
           ref: release-${{ matrix.version }}
-          path: 'julia'
+          path: "julia"
       - name: Compile Julia
         if: ${{ matrix.assertions }}
         run: |
@@ -141,6 +141,15 @@ jobs:
           REACTANT_TEST_GROUP: ${{ matrix.test_group }}
           XLA_FLAGS: "--xla_force_host_platform_device_count=12"
           JULIA_DEBUG: "Reactant,Reactant_jll"
+      - name: Upload MLIR modules
+        uses: actions/upload-artifact@v4
+        timeout-minutes: 10
+        if: ${{ always() }}
+        with:
+          name: "simulation-mlir-${{ matrix.version }} - ${{ matrix.test_group }} - ${{ matrix.os }} - ${{ matrix.runtime }} - assertions=${{ matrix.assertions }} - ${{ github.event_name }}"
+          path: "**/*.mlir"
+          retention-days: 90
+          overwrite: false
       - uses: julia-actions/julia-processcoverage@v1
       - uses: codecov/codecov-action@v5
         with:

test/runtests.jl

@@ -1,5 +1,11 @@
 using Reactant, SafeTestsets, Test
 
+# If we are in GitHub Actions, make `TMPDIR` be a local directory from which we
+# can upload artifacts at the end.
+if get(ENV, "GITHUB_ACTIONS", "false") == "true"
+    ENV["TMPDIR"] = mkpath(joinpath(@__DIR__, "..", "tmp"))
+end
+
 # parse some command-line arguments
 function extract_flag!(args, flag, default=nothing; typ=typeof(default))
     for f in args