test: Add a min-llvm-version directive

We've got tests which require a particular version of LLVM to run as they're
testing bug fixes. Our build system, however, supports multiple LLVM versions,
so we can't run these tests on all LLVM versions.

This adds a new `min-llvm-version` directive for tests so they can opt out of
being run on older versions of LLVM. This then namely applies that logic to the
`issue-36023.rs` test case and...

Closes #36138

1 files changed, 3 insertions, 1 deletions

diff --git a/src/bootstrap/check.rs b/src/bootstrap/check.rs
index 3d8b1438125..2b9d717cbd4 100644
--- a/src/bootstrap/check.rs
+++ b/src/bootstrap/check.rs
@@ -148,6 +148,9 @@ pub fn compiletest(build: &Build,
     if let Some(ref dir) = build.lldb_python_dir {
         cmd.arg("--lldb-python-dir").arg(dir);
     }
+    let llvm_config = build.llvm_config(target);
+    let llvm_version = output(Command::new(&llvm_config).arg("--version"));
+    cmd.arg("--llvm-version").arg(llvm_version);
 
     cmd.args(&build.flags.args);
 
@@ -158,7 +161,6 @@ pub fn compiletest(build: &Build,
     // Only pass correct values for these flags for the `run-make` suite as it
     // requires that a C++ compiler was configured which isn't always the case.
     if suite == "run-make" {
-        let llvm_config = build.llvm_config(target);
         let llvm_components = output(Command::new(&llvm_config).arg("--components"));
         let llvm_cxxflags = output(Command::new(&llvm_config).arg("--cxxflags"));
         cmd.arg("--cc").arg(build.cc(target))