[llvm] [libc++] Shuffle the order of pre-commit CI jobs a bit (PR #128008)

[Louis Dionne via llvm-commits]

https://github.com/ldionne created https://github.com/llvm/llvm-project/pull/128008

I've recently noticed that our CI is bottlenecked around platforms on which we don't have a lot of capacity like macOS (mostly) and Windows. To try to alleviate that, this patch moves the macOS builds and the Windows builds further down the pipeline so that they will get triggered less often (if an earlier job fails).

>From 4f099dee5aa3a41be0eb608725393e787fbaf64d Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Thu, 20 Feb 2025 09:19:26 -0500
Subject: [PATCH] [libc++] Shuffle the order of pre-commit CI jobs a bit

I've recently noticed that our CI is bottlenecked around platforms on
which we don't have a lot of capacity like macOS (mostly) and Windows.
To try to alleviate that, this patch moves the macOS builds and the
Windows builds further down the pipeline so that they will get triggered
less often (if an earlier job fails).
---
 .github/workflows/libcxx-build-and-test.yaml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/libcxx-build-and-test.yaml b/.github/workflows/libcxx-build-and-test.yaml
index d0193a4ec2faa..93e673ca513a4 100644
--- a/.github/workflows/libcxx-build-and-test.yaml
+++ b/.github/workflows/libcxx-build-and-test.yaml
@@ -124,7 +124,7 @@ jobs:
             **/crash_diagnostics/*
   stage3:
     if: github.repository_owner == 'llvm'
-    needs: [ stage1, stage2 ]
+    needs: [ stage2 ]
     continue-on-error: false
     strategy:
       fail-fast: false
@@ -188,7 +188,7 @@ jobs:
             **/crash_diagnostics/*
 
   macos:
-    needs: [ stage1 ]
+    needs: [ stage3 ]
     strategy:
       fail-fast: false
       matrix:
@@ -232,7 +232,7 @@ jobs:
 
   windows:
     runs-on: windows-2022
-    needs: [ stage1 ]
+    needs: [ stage2 ]
     strategy:
       fail-fast: false
       matrix: