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* [gcc(refs/users/meissner/heads/work018)] PowerPC: Fix nanq functions if long double is IEEE 128-bit.
@ 2020-09-18 18:18 Michael Meissner
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From: Michael Meissner @ 2020-09-18 18:18 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:e2bf6ba41cb4c5afd18a63efc276a3aa7334c1ba
commit e2bf6ba41cb4c5afd18a63efc276a3aa7334c1ba
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Fri Sep 18 14:17:54 2020 -0400
PowerPC: Fix nanq functions if long double is IEEE 128-bit.
gcc/
2020-09-18 Michael Meissner <meissner@linux.ibm.com>
* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If long
double is IEEE-128 map the nanq built-in functions to the long
double function, not the f128 function.
Diff:
---
gcc/config/rs6000/rs6000-c.c | 31 ++++++++++++++++++++++++-------
1 file changed, 24 insertions(+), 7 deletions(-)
diff --git a/gcc/config/rs6000/rs6000-c.c b/gcc/config/rs6000/rs6000-c.c
index f5982907e90..8f7a8eec740 100644
--- a/gcc/config/rs6000/rs6000-c.c
+++ b/gcc/config/rs6000/rs6000-c.c
@@ -681,15 +681,32 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfile)
builtin_define ("__builtin_vsx_xvnmsubmsp=__builtin_vsx_xvnmsubsp");
}
- /* Map the old _Float128 'q' builtins into the new 'f128' builtins. */
+ /* Map the old _Float128 'q' builtins into the new 'f128' builtins if long
+ double is IBM or 64-bit.
+
+ However, if long double is IEEE 128-bit, map both sets of built-in
+ functions to the normal long double version. This shows up in nansf128
+ vs. nanf128. */
if (TARGET_FLOAT128_TYPE)
{
- builtin_define ("__builtin_fabsq=__builtin_fabsf128");
- builtin_define ("__builtin_copysignq=__builtin_copysignf128");
- builtin_define ("__builtin_nanq=__builtin_nanf128");
- builtin_define ("__builtin_nansq=__builtin_nansf128");
- builtin_define ("__builtin_infq=__builtin_inff128");
- builtin_define ("__builtin_huge_valq=__builtin_huge_valf128");
+ if (FLOAT128_IEEE_P (TFmode))
+ {
+ builtin_define ("__builtin_fabsq=__builtin_fabsl");
+ builtin_define ("__builtin_copysignq=__builtin_copysignl");
+ builtin_define ("__builtin_nanq=__builtin_nanl");
+ builtin_define ("__builtin_nansq=__builtin_nansl");
+ builtin_define ("__builtin_infq=__builtin_infl");
+ builtin_define ("__builtin_huge_valq=__builtin_huge_vall");
+ }
+ else
+ {
+ builtin_define ("__builtin_fabsq=__builtin_fabsf128");
+ builtin_define ("__builtin_copysignq=__builtin_copysignf128");
+ builtin_define ("__builtin_nanq=__builtin_nanf128");
+ builtin_define ("__builtin_nansq=__builtin_nansf128");
+ builtin_define ("__builtin_infq=__builtin_inff128");
+ builtin_define ("__builtin_huge_valq=__builtin_huge_valf128");
+ }
}
/* Tell users they can use __builtin_bswap{16,64}. */
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