Don't emit range metadata on calls with LLVM 3.9 🤔

rust-lang · Apr 24, 2018 · c7c292b · c7c292b
1 parent 555d16e
commit c7c292b
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/src/librustc_trans/abi.rs b/src/librustc_trans/abi.rs
@@ -1062,7 +1062,11 @@ impl<'a, 'tcx> FnType<'tcx> {
             match scalar.value {
                 layout::Int(..) if !scalar.is_bool() => {
                     if let Some(range) = scalar.range_metadata(bx.cx) {
-                        bx.range_metadata(callsite, range);
+                        // FIXME(nox): This causes very weird type errors about
+                        // SHL operators in constants in stage 2 with LLVM 3.9.
+                        if unsafe { llvm::LLVMRustVersionMajor() >= 4 } {
+                            bx.range_metadata(callsite, range);
+                        }
                     }
                 }
                 _ => {}

diff --git a/src/test/codegen/call-metadata.rs b/src/test/codegen/call-metadata.rs
@@ -12,6 +12,8 @@
 // scalar value.
 
 // compile-flags: -C no-prepopulate-passes
+// min-llvm-version 4.0
+
 
 #![crate_type = "lib"]