Fix hipcc for extra -mllvm option (#1885)

bin/hipcc

@@ -729,7 +729,9 @@ if ($HIP_PLATFORM eq "clang") {
     }
     if ($optArg ne "-O0") {
         $HIPCXXFLAGS .= " -mllvm -amdgpu-early-inline-all=true -mllvm -amdgpu-function-calls=false";
-        $HIPLDFLAGS .= " -mllvm -amdgpu-early-inline-all=true -mllvm -amdgpu-function-calls=false";
+        if ($needLDFLAGS and not $needCXXFLAGS) {
+            $HIPLDFLAGS .= " -mllvm -amdgpu-early-inline-all=true -mllvm -amdgpu-function-calls=false";
+        }
     }
     $HIP_DEVLIB_FLAGS = " --hip-device-lib-path=$DEVICE_LIB_PATH";
     $HIPCXXFLAGS .= " $HIP_DEVLIB_FLAGS";