Various fixes for Rust on MIPS

Bug-Debian: https://bugs.debian.org/881845
Last-Update: 2020-03-23

Gbp-Pq: Name u-mips-fixes.diff

diff --git a/src/librustc_codegen_llvm/llvm_util.rs b/src/librustc_codegen_llvm/llvm_util.rs
index f0b50459837e93d3bb8793ad0800e64144e69f29..e32ff45e52bf0da6f98aadc64e005ed69fd01a6d 100644 (file)
--- a/src/librustc_codegen_llvm/llvm_util.rs
+++ b/src/librustc_codegen_llvm/llvm_util.rs
@@ -106,6 +106,12 @@ unsafe fn configure_llvm(sess: &Session) {
         // during inlining. Unfortunately these may block other optimizations.
         add("-preserve-alignment-assumptions-during-inlining=false", false);
 
+        if sess.target.target.arch == "mips"
+            || sess.target.target.arch == "mips64"
+        {
+            add("-fast-isel=0", false);
+        }
+
         for arg in sess_args {
             add(&(*arg), true);
         }