[Sema] Allow conversion between long double and __float128.

We should only ban this if long double is a double double. x86's 80 bit
long double is fine and supported by the backend.

llvm-svn: 322779

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/test/Sema/float128-ld-incompatibility.cpp b/clang/test/Sema/float128-ld-incompatibility.cpp
index d993ed7b081..13f5b6d5d10 100644
--- a/clang/test/Sema/float128-ld-incompatibility.cpp
+++ b/clang/test/Sema/float128-ld-incompatibility.cpp
@@ -1,10 +1,12 @@
 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 \
 // RUN: -triple powerpc64le-unknown-linux-gnu -target-cpu pwr8 \
 // RUN: -target-feature +float128 %s
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -triple x86_64-unknown-linux-gnu -Wno-unused-value -Wno-parentheses %s
 
 __float128 qf();
 long double ldf();
 
+#ifdef __PPC__
 // FIXME: once operations between long double and __float128 are implemented for
 //        targets where the types are different, these next two will change
 long double ld{qf()}; // expected-error {{cannot initialize a variable of type 'long double' with an rvalue of type '__float128'}}
@@ -17,6 +19,7 @@ auto test1(__float128 q, long double ld) -> decltype(q + ld) { // expected-error
 auto test2(long double a, __float128 b) -> decltype(a + b) { // expected-error {{invalid operands to binary expression ('long double' and '__float128')}}
   return a + b;      // expected-error {{invalid operands to binary expression ('long double' and '__float128')}}
 }
+#endif
 
 void test3(bool b) {
   long double ld;