[cfe-commits] r169674 - in /cfe/trunk: lib/Basic/Targets.cpp test/Driver/mips-long-double.c

[David Chisnall]

Author: theraven
Date: Sat Dec  8 03:06:08 2012
New Revision: 169674

URL: http://llvm.org/viewvc/llvm-project?rev=169674&view=rev
Log:
long double should be 64 bits on FreeBSD/MIPS64.  It possibly should be on
Linux too, as I think we inherited it from there.  The ABI spec says 128-bit,
although I think SGI's compiler on IRIX may be the only thing ever to support
this.


Added:
    cfe/trunk/test/Driver/mips-long-double.c
Modified:
    cfe/trunk/lib/Basic/Targets.cpp

Modified: cfe/trunk/lib/Basic/Targets.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets.cpp?rev=169674&r1=169673&r2=169674&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets.cpp (original)
+++ cfe/trunk/lib/Basic/Targets.cpp Sat Dec  8 03:06:08 2012
@@ -4222,6 +4222,10 @@
     PointerWidth = PointerAlign = 64;
     LongDoubleWidth = LongDoubleAlign = 128;
     LongDoubleFormat = &llvm::APFloat::IEEEquad;
+    if (getTriple().getOS() == llvm::Triple::FreeBSD) {
+      LongDoubleWidth = LongDoubleAlign = 64;
+      LongDoubleFormat = &llvm::APFloat::IEEEdouble;
+    }
     SuitableAlign = 128;
   }
   virtual bool setABI(const std::string &Name) {

Added: cfe/trunk/test/Driver/mips-long-double.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/mips-long-double.c?rev=169674&view=auto
==============================================================================
--- cfe/trunk/test/Driver/mips-long-double.c (added)
+++ cfe/trunk/test/Driver/mips-long-double.c Sat Dec  8 03:06:08 2012
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -triple mips64-unknown-freebsd -std=c11 -verify %s
+// RUN: %clang_cc1 -triple mips-unknown-freebsd -std=c11 -verify %s
+// RUN: %clang_cc1 -triple mips-unknown-linux-std=c11 -verify %s
+// RUN: %clang_cc1 -triple mips64-unknown-linux-std=c11 -verify %s
+// expected-no-diagnostics
+
+#ifdef _ABI64
+#  ifdef __FreeBSD__
+_Static_assert(sizeof(long double) == 8, "sizeof long double is wrong");
+_Static_assert(_Alignof(long double) == 8, "alignof long double is wrong");
+#  else
+_Static_assert(sizeof(long double) == 16, "sizeof long double is wrong");
+_Static_assert(_Alignof(long double) == 16, "alignof long double is wrong");
+#  endif
+#else
+_Static_assert(sizeof(long double) == 8, "sizeof long double is wrong");
+_Static_assert(_Alignof(long double) == 8, "alignof long double is wrong");
+#endif
+