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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.

llvm-svn: 169674
This commit is contained in:
David Chisnall 2012-12-08 09:06:08 +00:00
parent 6b02d46dae
commit a87d85994b
2 changed files with 23 additions and 0 deletions
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4
clang/lib/Basic/Targets.cpp
View File

@ -4222,6 +4222,10 @@ public:
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) {

19
clang/test/Driver/mips-long-double.c Normal file
View File

@ -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