[gn] Port 5f68c4111ab9c79b902723df3986dd1033813c01

diff --git a/llvm/utils/gn/secondary/clang/test/BUILD.gn b/llvm/utils/gn/secondary/clang/test/BUILD.gn
index d7d1be5..c93646c 100644 (file)
--- a/llvm/utils/gn/secondary/clang/test/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/test/BUILD.gn
@@ -68,6 +68,7 @@ write_lit_config("lit_site_cfg") {
     "LLVM_USE_SANITIZER=",
     "Python3_EXECUTABLE=$python_path",
     "USE_Z3_SOLVER=",
+    "PPC_LINUX_DEFAULT_IEEELONGDOUBLE=0",
   ]
 
   if (clang_enable_arcmt) {