diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5410613548c05..ceda348025e36 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -389,26 +389,26 @@ jobs:
os: windows-latest-xl
- name: i686-mingw-1
env:
- RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu"
+ RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu --set llvm.allow-old-toolchain"
SCRIPT: make ci-mingw-subset-1
CUSTOM_MINGW: 1
os: windows-latest-xl
- name: i686-mingw-2
env:
- RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu"
+ RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu --set llvm.allow-old-toolchain"
SCRIPT: make ci-mingw-subset-2
CUSTOM_MINGW: 1
os: windows-latest-xl
- name: x86_64-mingw-1
env:
SCRIPT: make ci-mingw-subset-1
- RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-profiler"
+ RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-profiler --set llvm.allow-old-toolchain"
CUSTOM_MINGW: 1
os: windows-latest-xl
- name: x86_64-mingw-2
env:
SCRIPT: make ci-mingw-subset-2
- RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-profiler"
+ RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-profiler --set llvm.allow-old-toolchain"
CUSTOM_MINGW: 1
os: windows-latest-xl
- name: dist-x86_64-msvc
@@ -432,7 +432,7 @@ jobs:
os: windows-latest-xl
- name: dist-i686-mingw
env:
- RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu --enable-full-tools --enable-profiler"
+ RUST_CONFIGURE_ARGS: "--build=i686-pc-windows-gnu --enable-full-tools --enable-profiler --set llvm.allow-old-toolchain"
SCRIPT: python x.py dist
CUSTOM_MINGW: 1
DIST_REQUIRE_ALL_TOOLS: 1
@@ -440,7 +440,7 @@ jobs:
- name: dist-x86_64-mingw
env:
SCRIPT: python x.py dist
- RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-full-tools --enable-profiler"
+ RUST_CONFIGURE_ARGS: "--build=x86_64-pc-windows-gnu --enable-full-tools --enable-profiler --set llvm.allow-old-toolchain"
CUSTOM_MINGW: 1
DIST_REQUIRE_ALL_TOOLS: 1
os: windows-latest-xl
diff --git a/.gitmodules b/.gitmodules
index cca60e337d2d8..9a664b6509801 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -34,7 +34,7 @@
[submodule "src/llvm-project"]
path = src/llvm-project
url = https://github.com/rust-lang/llvm-project.git
- branch = rustc/14.0-2022-06-20
+ branch = rustc/15.0-2022-08-09
[submodule "src/doc/embedded-book"]
path = src/doc/embedded-book
url = https://github.com/rust-embedded/book.git
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index a0a640473eb51..96d238eda59d0 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -440,6 +440,8 @@ pub(crate) fn global_llvm_features(sess: &Session, diagnostics: bool) -> Vec<Str
.features
.split(',')
.filter(|v| !v.is_empty() && backend_feature_name(v).is_some())
+ // Drop +atomics-32 feature introduced in LLVM 15.
+ .filter(|v| *v != "+atomics-32" || get_version() >= (15, 0, 0))
.map(String::from),
);
diff --git a/compiler/rustc_llvm/build.rs b/compiler/rustc_llvm/build.rs
index 62ef5804dce6d..abb68f3afe527 100644
--- a/compiler/rustc_llvm/build.rs
+++ b/compiler/rustc_llvm/build.rs
@@ -242,6 +242,13 @@ fn main() {
println!("cargo:rustc-link-lib=uuid");
} else if target.contains("netbsd") || target.contains("haiku") || target.contains("darwin") {
println!("cargo:rustc-link-lib=z");
+ } else if target.starts_with("arm")
+ || target.starts_with("mips-")
+ || target.starts_with("mipsel-")
+ || target.starts_with("powerpc-")
+ {
+ // 32-bit targets need to link libatomic.
+ println!("cargo:rustc-link-lib=atomic");
}
cmd.args(&components);
diff --git a/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs b/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs
index 2546ab9b7e680..c9bb0112f0e3d 100644
--- a/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs
+++ b/compiler/rustc_target/src/spec/thumbv6m_none_eabi.rs
@@ -13,7 +13,9 @@ pub fn target() -> Target {
abi: "eabi".into(),
// The ARMv6-M architecture doesn't support unaligned loads/stores so we disable them
// with +strict-align.
- features: "+strict-align".into(),
+ // Also force-enable 32-bit atomics, which allows the use of atomic load/store only.
+ // The resulting atomics are ABI incompatible with atomics backed by libatomic.
+ features: "+strict-align,+atomics-32".into(),
// There are no atomic CAS instructions available in the instruction set of the ARMv6-M
// architecture
atomic_cas: false,
diff --git a/src/bootstrap/native.rs b/src/bootstrap/native.rs
index 4d548dbb63875..8b50d5dc52bc1 100644
--- a/src/bootstrap/native.rs
+++ b/src/bootstrap/native.rs
@@ -325,6 +325,9 @@ impl Step for Llvm {
cfg.define("LLVM_PROFDATA_FILE", &path);
}
+ // Disable zstd to avoid a dependency on libzstd.so.
+ cfg.define("LLVM_ENABLE_ZSTD", "OFF");
+
if target != "aarch64-apple-darwin" && !target.contains("windows") {
cfg.define("LLVM_ENABLE_ZLIB", "ON");
} else {
diff --git a/src/ci/docker/host-x86_64/arm-android/Dockerfile b/src/ci/docker/host-x86_64/arm-android/Dockerfile
index 43cdbbe92e3ac..a2335687ab335 100644
--- a/src/ci/docker/host-x86_64/arm-android/Dockerfile
+++ b/src/ci/docker/host-x86_64/arm-android/Dockerfile
@@ -29,7 +29,8 @@ ENV PATH=$PATH:/android/sdk/platform-tools
ENV TARGETS=arm-linux-androideabi
-ENV RUST_CONFIGURE_ARGS --arm-linux-androideabi-ndk=/android/ndk/arm-14
+ENV RUST_CONFIGURE_ARGS --arm-linux-androideabi-ndk=/android/ndk/arm-14 \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py --stage 2 test --host='' --target $TARGETS
diff --git a/src/ci/docker/host-x86_64/dist-android/Dockerfile b/src/ci/docker/host-x86_64/dist-android/Dockerfile
index 2f0496d7dd4ba..c98fa496d4861 100644
--- a/src/ci/docker/host-x86_64/dist-android/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-android/Dockerfile
@@ -32,7 +32,8 @@ ENV RUST_CONFIGURE_ARGS \
--i686-linux-android-ndk=/android/ndk/x86-14 \
--aarch64-linux-android-ndk=/android/ndk/arm64-21 \
--x86_64-linux-android-ndk=/android/ndk/x86_64-21 \
- --disable-docs
+ --disable-docs \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py dist --host='' --target $TARGETS
diff --git a/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile b/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile
index c98fc7dcfff3e..b0d65428ec6c4 100644
--- a/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-i586-gnu-i586-i686-musl/Dockerfile
@@ -36,7 +36,8 @@ RUN /scripts/cmake.sh
ENV RUST_CONFIGURE_ARGS \
--musl-root-i586=/musl-i586 \
--musl-root-i686=/musl-i686 \
- --disable-docs
+ --disable-docs \
+ --set llvm.allow-old-toolchain
# Newer binutils broke things on some vms/distros (i.e., linking against
# unknown relocs disabled by the following flag), so we need to go out of our
diff --git a/src/ci/docker/host-x86_64/dist-mips-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-mips-linux/Dockerfile
index b0f06569a9c21..948fa40dd4b13 100644
--- a/src/ci/docker/host-x86_64/dist-mips-linux/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-mips-linux/Dockerfile
@@ -26,5 +26,6 @@ RUN /scripts/cmake.sh
ENV HOSTS=mips-unknown-linux-gnu
-ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
+ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS
diff --git a/src/ci/docker/host-x86_64/dist-mips64-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-mips64-linux/Dockerfile
index 245c28e1fa341..fd15dbd22c6c2 100644
--- a/src/ci/docker/host-x86_64/dist-mips64-linux/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-mips64-linux/Dockerfile
@@ -25,5 +25,6 @@ RUN /scripts/cmake.sh
ENV HOSTS=mips64-unknown-linux-gnuabi64
-ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
+ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS
diff --git a/src/ci/docker/host-x86_64/dist-mips64el-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-mips64el-linux/Dockerfile
index 03998c8880aea..376bdfb4a2f4b 100644
--- a/src/ci/docker/host-x86_64/dist-mips64el-linux/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-mips64el-linux/Dockerfile
@@ -26,5 +26,6 @@ RUN /scripts/cmake.sh
ENV HOSTS=mips64el-unknown-linux-gnuabi64
-ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
+ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS
diff --git a/src/ci/docker/host-x86_64/dist-mipsel-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-mipsel-linux/Dockerfile
index 5861727062101..70c8b2a96c8c1 100644
--- a/src/ci/docker/host-x86_64/dist-mipsel-linux/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-mipsel-linux/Dockerfile
@@ -25,5 +25,6 @@ RUN /scripts/cmake.sh
ENV HOSTS=mipsel-unknown-linux-gnu
-ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
+ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS
diff --git a/src/ci/docker/host-x86_64/dist-x86_64-netbsd/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-netbsd/Dockerfile
index 92bdc9811fd52..fed4be4c30a74 100644
--- a/src/ci/docker/host-x86_64/dist-x86_64-netbsd/Dockerfile
+++ b/src/ci/docker/host-x86_64/dist-x86_64-netbsd/Dockerfile
@@ -21,5 +21,6 @@ ENV \
ENV HOSTS=x86_64-unknown-netbsd
-ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
+ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py dist --host $HOSTS --target $HOSTS
diff --git a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile
index 0182ebb8b597e..1f8d0a64ea48e 100644
--- a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile
+++ b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile
@@ -27,6 +27,7 @@ RUN mkdir -p /config
RUN echo "[rust]" > /config/nopt-std-config.toml
RUN echo "optimize = false" >> /config/nopt-std-config.toml
-ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu --disable-optimize-tests
+ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu --disable-optimize-tests \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py test --stage 0 --config /config/nopt-std-config.toml library/std \
&& python3 ../x.py --stage 2 test
diff --git a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile
index feaab819bdda3..7bca0398dea7c 100644
--- a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile
+++ b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile
@@ -23,7 +23,8 @@ RUN sh /scripts/sccache.sh
COPY scripts/cmake.sh /scripts/
RUN /scripts/cmake.sh
-ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu
+ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu \
+ --set llvm.allow-old-toolchain
# Exclude some tests that are unlikely to be platform specific, to speed up
# this slow job.
ENV SCRIPT python3 ../x.py --stage 2 test \
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile
index ee3cd092f4cdb..bfc6975c19dc9 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-aux/Dockerfile
@@ -26,5 +26,6 @@ RUN sh /scripts/sccache.sh
COPY scripts/cmake.sh /scripts/
RUN /scripts/cmake.sh
-ENV RUST_CONFIGURE_ARGS --build=x86_64-unknown-linux-gnu
+ENV RUST_CONFIGURE_ARGS --build=x86_64-unknown-linux-gnu \
+ --set llvm.allow-old-toolchain
ENV RUST_CHECK_TARGET check-aux
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile
index 09d9cda02bda6..4bb4042cd7e2f 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-distcheck/Dockerfile
@@ -22,6 +22,7 @@ RUN sh /scripts/sccache.sh
COPY scripts/cmake.sh /scripts/
RUN /scripts/cmake.sh
-ENV RUST_CONFIGURE_ARGS --build=x86_64-unknown-linux-gnu --set rust.ignore-git=false
+ENV RUST_CONFIGURE_ARGS --build=x86_64-unknown-linux-gnu --set rust.ignore-git=false \
+ --set llvm.allow-old-toolchain
ENV SCRIPT python3 ../x.py --stage 2 test distcheck
ENV DIST_SRC 1
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
index 2358091a6dfbf..f442a477a7b1e 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
@@ -81,6 +81,7 @@ COPY host-x86_64/x86_64-gnu-tools/browser-ui-test.version /tmp/
RUN npm install -g browser-ui-test@$(head -n 1 /tmp/browser-ui-test.version) --unsafe-perm=true
ENV RUST_CONFIGURE_ARGS \
+ --set llvm.allow-old-toolchain \
--build=x86_64-unknown-linux-gnu \
--save-toolstates=/tmp/toolstate/toolstates.json
diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index 3ad4e3f97a3bc..a21400cc4726d 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -596,14 +596,18 @@ jobs:
- name: i686-mingw-1
env:
- RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
+ RUST_CONFIGURE_ARGS: >-
+ --build=i686-pc-windows-gnu
+ --set llvm.allow-old-toolchain
SCRIPT: make ci-mingw-subset-1
CUSTOM_MINGW: 1
<<: *job-windows-xl
- name: i686-mingw-2
env:
- RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu
+ RUST_CONFIGURE_ARGS: >-
+ --build=i686-pc-windows-gnu
+ --set llvm.allow-old-toolchain
SCRIPT: make ci-mingw-subset-2
CUSTOM_MINGW: 1
<<: *job-windows-xl
@@ -611,14 +615,20 @@ jobs:
- name: x86_64-mingw-1
env:
SCRIPT: make ci-mingw-subset-1
- RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-profiler
+ RUST_CONFIGURE_ARGS: >-
+ --build=x86_64-pc-windows-gnu
+ --enable-profiler
+ --set llvm.allow-old-toolchain
CUSTOM_MINGW: 1
<<: *job-windows-xl
- name: x86_64-mingw-2
env:
SCRIPT: make ci-mingw-subset-2
- RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-profiler
+ RUST_CONFIGURE_ARGS: >-
+ --build=x86_64-pc-windows-gnu
+ --enable-profiler
+ --set llvm.allow-old-toolchain
CUSTOM_MINGW: 1
<<: *job-windows-xl
@@ -663,7 +673,11 @@ jobs:
- name: dist-i686-mingw
env:
- RUST_CONFIGURE_ARGS: --build=i686-pc-windows-gnu --enable-full-tools --enable-profiler
+ RUST_CONFIGURE_ARGS: >-
+ --build=i686-pc-windows-gnu
+ --enable-full-tools
+ --enable-profiler
+ --set llvm.allow-old-toolchain
SCRIPT: python x.py dist
CUSTOM_MINGW: 1
DIST_REQUIRE_ALL_TOOLS: 1
@@ -672,7 +686,11 @@ jobs:
- name: dist-x86_64-mingw
env:
SCRIPT: python x.py dist
- RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-gnu --enable-full-tools --enable-profiler
+ RUST_CONFIGURE_ARGS: >-
+ --build=x86_64-pc-windows-gnu
+ --enable-full-tools
+ --enable-profiler
+ --set llvm.allow-old-toolchain
CUSTOM_MINGW: 1
DIST_REQUIRE_ALL_TOOLS: 1
<<: *job-windows-xl
diff --git a/src/llvm-project b/src/llvm-project
index 8b6b5014fdad3..e3be3f64ecac1 160000
--- a/src/llvm-project
+++ b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 8b6b5014fdad3a750f7242a6bfdcad83619498d4
+Subproject commit e3be3f64ecac101d14ceda759ba078ad0aaf3747
diff --git a/src/test/run-make/coverage-llvmir/filecheck.testprog.txt b/src/test/run-make/coverage-llvmir/filecheck.testprog.txt
index 7a5f219227701..c943261d799c4 100644
--- a/src/test/run-make/coverage-llvmir/filecheck.testprog.txt
+++ b/src/test/run-make/coverage-llvmir/filecheck.testprog.txt
@@ -9,7 +9,7 @@ CHECK-SAME: section "[[INSTR_PROF_COVFUN]]"[[COMDAT_IF_SUPPORTED]], align 8
CHECK: @__llvm_coverage_mapping = private constant
CHECK-SAME: section "[[INSTR_PROF_COVMAP]]", align 8
-WINDOWS: @__llvm_profile_runtime = external global i32
+WINDOWS: @__llvm_profile_runtime = external{{.*}}global i32
CHECK: @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = {{private|internal}} global
CHECK-SAME: section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8