[llvm] [Github] Bump CI container to LLVM 20.1.1 (PR #132567)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/132567

This patch bumps the CI container to the latest LLVM Release and gets rid of
the patch that we were carrying that is in 20.1.1.


>From 12741febe127c1320bf9bbeeec7f33ba7609abc1 Mon Sep 17 00:00:00 2001
From: Aiden Grossman <aidengrossman at google.com>
Date: Sat, 22 Mar 2025 21:43:17 +0000
Subject: [PATCH] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20initia?=
 =?UTF-8?q?l=20version?=
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Created using spr 1.3.4
---
 .github/workflows/containers/github-action-ci/Dockerfile | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/.github/workflows/containers/github-action-ci/Dockerfile b/.github/workflows/containers/github-action-ci/Dockerfile
index bd3720017b7f7..ef4a11013acb3 100644
--- a/.github/workflows/containers/github-action-ci/Dockerfile
+++ b/.github/workflows/containers/github-action-ci/Dockerfile
@@ -2,7 +2,7 @@ FROM docker.io/library/ubuntu:22.04 as base
 ENV LLVM_SYSROOT=/opt/llvm
 
 FROM base as stage1-toolchain
-ENV LLVM_VERSION=19.1.5
+ENV LLVM_VERSION=20.1.1
 
 RUN apt-get update && \
     apt-get install -y \
@@ -20,12 +20,6 @@ RUN curl -O -L https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-$L
 
 WORKDIR /llvm-project-llvmorg-$LLVM_VERSION
 
-# Patch to enable better PGO profile data.
-# TODO: Remove this for llvm 20
-ADD https://github.com/llvm/llvm-project/commit/738250989ce516f02f809bdfde474a039c77e81f.patch .
-
-RUN patch -p1 < 738250989ce516f02f809bdfde474a039c77e81f.patch
-
 RUN cmake -B ./build -G Ninja ./llvm \
   -C ./clang/cmake/caches/BOLT-PGO.cmake \
   -DBOOTSTRAP_LLVM_ENABLE_LLD=ON \