From aa7c54ef95057dfed1c19fe3d6226b85e89863af Mon Sep 17 00:00:00 2001
From: Reid Kleckner <reid@kleckner.net>
Date: Tue, 1 Jul 2014 22:23:54 +0000
Subject: [PATCH] Win64: Disable uwtable until we fix .pdata emission in LLVM
LLVM r211399 started emitting .pdata for win64 by default.
Unfortunately, it produces invalid object files. I plan to fix that
Soon. For now, don't request unwind tables. This fixes the clang-cl
self-host on win64.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@212137 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Driver/WindowsToolChain.cpp | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/lib/Driver/WindowsToolChain.cpp b/lib/Driver/WindowsToolChain.cpp
index a1ba7a7008a..913425a19f0 100644
--- a/lib/Driver/WindowsToolChain.cpp
+++ b/lib/Driver/WindowsToolChain.cpp
@@ -59,7 +59,11 @@ bool Windows::IsIntegratedAssemblerDefault() const {
}
bool Windows::IsUnwindTablesDefault() const {
- return getArch() == llvm::Triple::x86_64;
+ // FIXME: LLVM's lowering of Win64 data is broken right now. MSVC's linker
+ // says that our object files provide invalid .pdata contributions. Until
+ // that is fixed, don't ask for unwind tables.
+ return false;
+ //return getArch() == llvm::Triple::x86_64;
}
bool Windows::isPICDefault() const {
--
GitLab