Auto merge of #147896 - Zalathar:target, r=<try>

(EXPERIMENT) compiletest: Don't set `TARGET` for non-run-make tests

try-job: dist-i586-gnu-i586-i686-musl

Author: rust-bors[bot]

src/tools/compiletest/src/lib.rs

@@ -525,11 +525,6 @@ fn run_tests(config: Arc<Config>) {
     // SAFETY: at this point we're still single-threaded.
     unsafe { env::set_var("__COMPAT_LAYER", "RunAsInvoker") };
 
-    // Let tests know which target they're running as.
-    //
-    // SAFETY: at this point we're still single-threaded.
-    unsafe { env::set_var("TARGET", &config.target) };
-
     let mut configs = Vec::new();
     if let TestMode::DebugInfo = config.mode {
         // Debugging emscripten code doesn't make sense today

tests/ui/abi/homogenous-floats-target-feature-mixup.rs

@@ -19,16 +19,6 @@ fn main() {
         return test::main(&level)
     }
 
-    match std::env::var("TARGET") {
-        Ok(s) => {
-            // Skip this tests on i586-unknown-linux-gnu where sse2 is disabled
-            if s.contains("i586") {
-                return
-            }
-        }
-        Err(_) => return,
-    }
-
     let me = env::current_exe().unwrap();
     for level in ["sse", "avx", "avx512"].iter() {
         let status = Command::new(&me).arg(level).status().unwrap();

tests/ui/target-feature/target-feature-detection.rs

@@ -9,15 +9,6 @@
 use std::env;
 
 fn main() {
-    match env::var("TARGET") {
-        Ok(s) => {
-            // Skip this tests on i586-unknown-linux-gnu where sse2 is disabled
-            if s.contains("i586") {
-                return;
-            }
-        }
-        Err(_) => return,
-    }
     if cfg!(any(target_arch = "x86", target_arch = "x86_64")) {
         assert!(
             cfg!(target_feature = "sse2"),