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* [gcc(refs/users/meissner/heads/work075)] Use default for long double if not specified.
@ 2022-01-11 23:14 Michael Meissner
0 siblings, 0 replies; only message in thread
From: Michael Meissner @ 2022-01-11 23:14 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:f6043e2a06c4757a9448cc3a7bdb300bf2ecf4ac
commit f6043e2a06c4757a9448cc3a7bdb300bf2ecf4ac
Author: Michael Meissner <meissner@linux.ibm.com>
Date: Tue Jan 11 18:14:31 2022 -0500
Use default for long double if not specified.
If the user did not specify a default long double format, use the default
for the compiler that is being used to build this GCC for the long double
default.
gcc/
2022-01-11 Michael Meissner <meissner@the-meissners.org>
* config/rs6000/rs6000.c (TARGET_IEEEQUAD_DEFAULT): If the
compiler used to build this compiler defaults long double to IEEE
128-bit, then make it the default for the target.
Diff:
---
gcc/config/rs6000/rs6000.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 0e3481c8327..e59f7aa49c8 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -91,14 +91,22 @@
explicitly redefine TARGET_IEEEQUAD and TARGET_IEEEQUAD_DEFAULT to 0, so
those systems will not pick up this default. This needs to be after all
of the include files, so that POWERPC_LINUX and POWERPC_FREEBSD are
- properly defined. */
+ properly defined.
+
+ If we are being built by a compiler that uses IEEE 128-bit as the default
+ long double and no explicit long double format was selected, then also
+ default long double to IEEE 128-bit. */
#ifndef TARGET_IEEEQUAD_DEFAULT
#if !defined (POWERPC_LINUX) && !defined (POWERPC_FREEBSD)
#define TARGET_IEEEQUAD_DEFAULT 1
#else
+#ifdef __LONG_DOUBLE_IEEE128__
+#define TARGET_IEEEQUAD_DEFAULT 1
+#else
#define TARGET_IEEEQUAD_DEFAULT 0
#endif
#endif
+#endif
/* Don't enable PC-relative addressing if the target does not support it. */
#ifndef PCREL_SUPPORTED_BY_OS
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