This patch defines 3 macros to tell the user whether -mfloat128 is enabled or
not, and whether long double is IBM extended double or IEEE 128-bit floating
point.
I have built the compiler with this patch and the previous subpatches (1 and
2). I have bootstrapped the compiler with all 16 subpatches installed, and
there were no regressions. Is it ok to install in the trunk?
2015-10-22 Michael Meissner <meiss...@linux.vnet.ibm.com>
* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
__FLOAT128__ if -mfloat128. Define __LONG_DOUBLE_IEEE128__ if long
double is IEEE 128-bit. Define __LONG_DOUBLE_IBM128__ if long
double is IBM extended double.
--
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meiss...@linux.vnet.ibm.com, phone: +1 (978) 899-4797
Index: gcc/config/rs6000/rs6000-c.c
===================================================================
--- gcc/config/rs6000/rs6000-c.c (revision 229182)
+++ gcc/config/rs6000/rs6000-c.c (working copy)
@@ -408,6 +408,8 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfi
builtin_define ("__RSQRTE__");
if (TARGET_FRSQRTES)
builtin_define ("__RSQRTEF__");
+ if (TARGET_FLOAT128)
+ builtin_define ("__FLOAT128__");
if (TARGET_EXTRA_BUILTINS && cpp_get_options (pfile)->lang != CLK_ASM)
{
@@ -481,6 +483,11 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfi
{
builtin_define ("__LONG_DOUBLE_128__");
builtin_define ("__LONGDOUBLE128");
+
+ if (TARGET_IEEEQUAD)
+ builtin_define ("__LONG_DOUBLE_IEEE128__");
+ else
+ builtin_define ("__LONG_DOUBLE_IBM128__");
}
switch (TARGET_CMODEL)
