github: Simplify the if: conditions for all chained jobs

As all the other jobs depend on the "prepare" job, it's enough to
keep the condition within the "prepare" job and remove/simplify
the rest.

.github/workflows/build.yml

@@ -65,7 +65,6 @@ jobs:
           retention-days: 7
 
   linux-stage1:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare]
     runs-on: ubuntu-22.04
     steps:
@@ -98,7 +97,6 @@ jobs:
           retention-days: 7
 
   linux-profile:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare, linux-stage1]
     runs-on: ubuntu-22.04
     steps:
@@ -130,7 +128,6 @@ jobs:
 
   # Build a cross compiler for Linux, targeting Windows.
   linux:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare, linux-stage1, linux-profile]
     runs-on: ubuntu-22.04
     steps:
@@ -175,7 +172,6 @@ jobs:
   # Crosscompile the toolchain for running on Linux on a different architecture, bundle the runtime
   # libraries that were built in the 'linux-stage1' step above.
   linux-cross-aarch64:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [linux-stage1, linux-profile, prepare]
     runs-on: ubuntu-22.04
     steps:
@@ -233,7 +229,7 @@ jobs:
   # to better catch such bugs early. This makes the first-stage toolchain built
   # here in scheduled builds somewhat slower.
   linux-asserts:
-    if: (github.event_name == 'schedule') && (github.repository == 'mstorsjo/llvm-mingw')
+    if: github.event_name == 'schedule'
     needs: [prepare]
     runs-on: ubuntu-latest
     steps:
@@ -261,7 +257,6 @@ jobs:
           retention-days: 7
 
   macos-stage1:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare]
     runs-on: macos-latest
     steps:
@@ -291,7 +286,6 @@ jobs:
 
   # Build a cross compiler for macOS, targeting Windows.
   macos:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare, macos-stage1, linux-profile]
     runs-on: macos-latest
     steps:
@@ -339,7 +333,6 @@ jobs:
   # environments). The binaries built here rely on the runtime libraries from
   # the host environment (libstdc++ or libc++).
   msys2:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare]
     runs-on: windows-latest
     defaults:
@@ -396,7 +389,6 @@ jobs:
   # llvm and make a proper standalone toolchain for Windows (for all 4
   # architectures). The binaries built here match actual releases quite closely.
   linux-cross-windows:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [linux-stage1, linux-profile, prepare]
     runs-on: ubuntu-latest
     strategy:
@@ -446,7 +438,6 @@ jobs:
 
   # Run llvm-mingw's tests with the cross-built toolchains from above.
   test-toolchain:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [linux-cross-windows]
     defaults:
       run:
@@ -557,7 +548,7 @@ jobs:
   # This also forces testing the bundled python executables.
   test-openmp:
     # Only running these tests in scheduled builds.
-    if: (github.event_name == 'schedule') && (github.repository == 'mstorsjo/llvm-mingw')
+    if: github.event_name == 'schedule'
     needs: [linux-cross-windows, prepare]
     strategy:
       fail-fast: false
@@ -624,7 +615,7 @@ jobs:
   # also forces testing the bundled python executables.
   test-compiler-rt:
     # Only running these tests in scheduled builds.
-    if: (github.event_name == 'schedule') && (github.repository == 'mstorsjo/llvm-mingw')
+    if: github.event_name == 'schedule'
     needs: [linux-cross-windows, prepare]
     strategy:
       fail-fast: false
@@ -705,7 +696,7 @@ jobs:
   # enabled, to catch code generation bugs that might trigger asserts, to
   # find such regressions early.
   linux-test-cross-build-ffmpeg:
-    if: (github.event_name == 'schedule') && (github.repository == 'mstorsjo/llvm-mingw')
+    if: github.event_name == 'schedule'
     needs: [linux-asserts]
     runs-on: ubuntu-latest
     strategy:
@@ -750,7 +741,7 @@ jobs:
   # compiler itself, but that only show up at runtime. This is only done
   # for scheduled builds.
   test-ffmpeg:
-    if: (github.event_name == 'schedule') && (github.repository == 'mstorsjo/llvm-mingw')
+    if: github.event_name == 'schedule'
     needs: [linux-cross-windows]
     runs-on: windows-latest
     defaults:
@@ -797,7 +788,7 @@ jobs:
           make -j$(nproc) fate
 
   upload-nightly:
-    if: (github.event_name == 'schedule') && (github.repository == 'mstorsjo/llvm-mingw')
+    if: github.event_name == 'schedule'
     permissions:
       contents: write
     needs: [linux, linux-cross-aarch64, macos, linux-cross-windows, test-toolchain, linux-test-cross-build-ffmpeg, test-ffmpeg]

.github/workflows/test-libcxx.yml

@@ -39,7 +39,6 @@ jobs:
           cat $GITHUB_OUTPUT
 
   test-libcxx:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare]
     strategy:
       fail-fast: false

.github/workflows/test-llvm.yml

@@ -39,7 +39,6 @@ jobs:
           cat $GITHUB_OUTPUT
 
   test-llvm:
-    if: (github.event_name != 'schedule') || (github.repository == 'mstorsjo/llvm-mingw')
     needs: [prepare]
     strategy:
       fail-fast: false