Handle assembler warnings properly

2 files changed, 23 insertions, 2 deletions

diff --git a/src/librustc_codegen_llvm/llvm/diagnostic.rs b/src/librustc_codegen_llvm/llvm/diagnostic.rs
index 4347cd06532..47f5c94e70c 100644
--- a/src/librustc_codegen_llvm/llvm/diagnostic.rs
+++ b/src/librustc_codegen_llvm/llvm/diagnostic.rs
@@ -88,6 +88,7 @@ impl OptimizationDiagnostic<'ll> {
 
 #[derive(Copy, Clone)]
 pub struct InlineAsmDiagnostic<'ll> {
+    pub level: super::DiagnosticLevel,
     pub cookie: c_uint,
     pub message: &'ll Twine,
     pub instruction: Option<&'ll Value>,
@@ -98,10 +99,17 @@ impl InlineAsmDiagnostic<'ll> {
         let mut cookie = 0;
         let mut message = None;
         let mut instruction = None;
+        let mut level = super::DiagnosticLevel::Error;
 
-        super::LLVMRustUnpackInlineAsmDiagnostic(di, &mut cookie, &mut message, &mut instruction);
+        super::LLVMRustUnpackInlineAsmDiagnostic(
+            di,
+            &mut level,
+            &mut cookie,
+            &mut message,
+            &mut instruction,
+        );
 
-        InlineAsmDiagnostic { cookie, message: message.unwrap(), instruction }
+        InlineAsmDiagnostic { level, cookie, message: message.unwrap(), instruction }
     }
 }
 
diff --git a/src/librustc_codegen_llvm/llvm/ffi.rs b/src/librustc_codegen_llvm/llvm/ffi.rs
index 759c2bf1b85..3c981af73ab 100644
--- a/src/librustc_codegen_llvm/llvm/ffi.rs
+++ b/src/librustc_codegen_llvm/llvm/ffi.rs
@@ -489,6 +489,17 @@ pub enum DiagnosticKind {
     Linker,
 }
 
+/// LLVMRustDiagnosticLevel
+#[derive(Copy, Clone)]
+#[repr(C)]
+#[allow(dead_code)] // Variants constructed by C++.
+pub enum DiagnosticLevel {
+    Error,
+    Warning,
+    Note,
+    Remark,
+}
+
 /// LLVMRustArchiveKind
 #[derive(Copy, Clone)]
 #[repr(C)]
@@ -2054,6 +2065,7 @@ extern "C" {
 
     pub fn LLVMRustUnpackInlineAsmDiagnostic(
         DI: &'a DiagnosticInfo,
+        level_out: &mut DiagnosticLevel,
         cookie_out: &mut c_uint,
         message_out: &mut Option<&'a Twine>,
         instruction_out: &mut Option<&'a Value>,
@@ -2074,6 +2086,7 @@ extern "C" {
         d: &SMDiagnostic,
         message_out: &RustString,
         buffer_out: &RustString,
+        level_out: &mut DiagnosticLevel,
         loc_out: &mut c_uint,
         ranges_out: *mut c_uint,
         num_ranges: &mut usize,