Switch upcall glues to fastcall as well.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/comp/lib/llvm.rs b/src/comp/lib/llvm.rs
index 0cd177a406d..da48c6b5d4d 100644
--- a/src/comp/lib/llvm.rs
+++ b/src/comp/lib/llvm.rs
@@ -1026,6 +1026,15 @@ obj builder(BuilderRef B) {
                                _str.buf(""));
     }
 
+    fn FastCall(ValueRef Fn, vec[ValueRef] Args) -> ValueRef {
+        auto v = llvm.LLVMBuildCall(B, Fn,
+                                    _vec.buf[ValueRef](Args),
+                                    _vec.len[ValueRef](Args),
+                                    _str.buf(""));
+        llvm.LLVMSetInstructionCallConv(v, LLVMFastCallConv);
+        ret v;
+    }
+
     fn Select(ValueRef If, ValueRef Then, ValueRef Else) -> ValueRef {
         ret llvm.LLVMBuildSelect(B, If, Then, Else, _str.buf(""));
     }