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[4/6] ldbl-128ibm-compat: Redirect complex math functions

Message ID 98945d84449f1427125570eb7f02335261b3e65a.1580757509.git.murphyp@linux.vnet.ibm.com
State Committed
Delegated to: Tulio Magno Quites Machado Filho
Headers show

Commit Message

Paul E. Murphy Feb. 3, 2020, 9:10 p.m. UTC
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>

The API doesn't change, i.e. compilers using a long double format compatible
with the IEEE 128-bit extended precision format are redirected from *l
functions to __*ieee128 symbols using the same mechanism already
used with -mlong-double-64 for complex math functions.
---
 math/complex.h | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

Comments

Tulio Magno Quites Machado Filho Feb. 11, 2020, 6:36 p.m. UTC | #1
"Paul E. Murphy" <murphyp@linux.vnet.ibm.com> writes:

> From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
>
> The API doesn't change, i.e. compilers using a long double format compatible
> with the IEEE 128-bit extended precision format are redirected from *l
> functions to __*ieee128 symbols using the same mechanism already
> used with -mlong-double-64 for complex math functions.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Paul E Murphy Feb. 28, 2020, 2:59 p.m. UTC | #2
And committed with the math.h changes.

On 2/11/20 12:36 PM, Tulio Magno Quites Machado Filho wrote:
> "Paul E. Murphy" <murphyp@linux.vnet.ibm.com> writes:
> 
>> From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
>>
>> The API doesn't change, i.e. compilers using a long double format compatible
>> with the IEEE 128-bit extended precision format are redirected from *l
>> functions to __*ieee128 symbols using the same mechanism already
>> used with -mlong-double-64 for complex math functions.
> 
> Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
>
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Patch

diff --git a/math/complex.h b/math/complex.h
index 42f3fd7517..b6d175e800 100644
--- a/math/complex.h
+++ b/math/complex.h
@@ -95,9 +95,11 @@  __BEGIN_DECLS
 
 #define __MATHCALL(function, args)	\
   __MATHDECL (_Mdouble_complex_,function, args)
-#define __MATHDECL(type, function, args) \
+#define __MATHDECL_IMPL(type, function, args) \
   __MATHDECL_1(type, function, args); \
   __MATHDECL_1(type, __CONCAT(__,function), args)
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_IMPL(type, function, args)
 #define __MATHDECL_1_IMPL(type, function, args) \
   extern type __MATH_PRECNAME(function) args __THROW
 #define __MATHDECL_1(type, function, args) \
@@ -124,13 +126,28 @@  __BEGIN_DECLS
 #  undef __MATHDECL_1
 #  define __MATHDECL_1(type, function, args) \
   extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, function)
+# elif __LONG_DOUBLE_USES_FLOAT128 == 1
+#  undef __MATHDECL_1
+#  undef __MATHDECL
+#  define __REDIR_TO(function) \
+  __ ## function ## ieee128
+#  define __MATHDECL_1(type, function, alias, args) \
+  extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, alias)
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_1(type, function, __REDIR_TO(function), args); \
+  __MATHDECL_1(type, __CONCAT(__,function), __REDIR_TO(function), args)
 # endif
 
 # define _Mdouble_ 		long double
 # define __MATH_PRECNAME(name)	name##l
 # include <bits/cmathcalls.h>
-# if defined __LDBL_COMPAT
+# if defined __LDBL_COMPAT \
+     || __LONG_DOUBLE_USES_FLOAT128 == 1
+#  undef __REDIR_TO
 #  undef __MATHDECL_1
+#  undef __MATHDECL
+#define __MATHDECL(type, function, args) \
+  __MATHDECL_IMPL(type, function, args)
 #  define __MATHDECL_1(type, function, args) \
   __MATHDECL_1_IMPL(type, function, args)
 # endif