commit 321b7acdc381a46aa6f5992525a6b78f1963aeb2
author Anders Carlsson <andersca@mac.com> Mon Oct 31 16:27:11 2011 +0000
committer Stephen Hines <srhines@google.com> Fri Nov 11 11:43:56 2011 -0800
tree 1d7eb8202771344fba6ba370b7f95661ef002a80
parent 197a9740e4e644c55533803f4b73e5fc69d5deb0

In x86_64, when calling an Objective-C method that returns a _Complex long double, make sure to use the objc_msgSend_fp2ret function which ensures that the return value will be {0, 0} if the receiver is nil.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143350 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Basic/Targets.cpp

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 53274f5..0912bc5 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -2245,6 +2245,9 @@
     // Use fpret only for long double.
     RealTypeUsesObjCFPRet = (1 << TargetInfo::LongDouble);
 
+    // Use fp2ret for _Complex long double.
+    ComplexLongDoubleUsesFP2Ret = true;
+
     // x86-64 has atomics up to 16 bytes.
     // FIXME: Once the backend is fixed, increase MaxAtomicInlineWidth to 128
     // on CPUs with cmpxchg16b