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Define __SIZEOF_FLOAT128__ and __SIZEOF_IBM128__. 

Define the sizes of the PowerPC specific types __float128 and __ibm128 if those
types are enabled.

This patch will define __SIZEOF_IBM128__ and __SIZEOF_FLOAT128__ if their
respective types are created in the compiler.  Currently, this means both of
these will be defined if float128 support is enabled.  But at some point in
the future, __ibm128 could be enabled without enabling float128 support and
__SIZEOF_IBM128__ would be defined.

2022-02-16  Michael Meissner  <meissner@the-meissners.org>

gcc/
	PR target/99708
	* config/rs6000/rs6000-c.cc (rs6000_cpu_cpp_builtins): Define
	__SIZEOF_IBM128__ if the IBM 128-bit long double type is created.
	Define __SIZEOF_FLOAT128__ if the IEEE 128-bit floating point type
	is created.

gcc/testsuite/
	PR target/99708
	* gcc.target/powerpc/pr99708.c: New test.
This commit is contained in:
Michael Meissner 2022-02-16 22:00:00 -05:00
parent 5fbcbcaff7
commit 687e57d7ac
2 changed files with 26 additions and 1 deletions
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6
gcc/config/rs6000/rs6000-c.cc
View File

@ -623,7 +623,11 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfile)
if (TARGET_FRSQRTES)
builtin_define ("__RSQRTEF__");
if (TARGET_FLOAT128_TYPE)
builtin_define ("__FLOAT128_TYPE__");
builtin_define ("__FLOAT128_TYPE__");
if (ibm128_float_type_node)
builtin_define ("__SIZEOF_IBM128__=16");
if (ieee128_float_type_node)
builtin_define ("__SIZEOF_FLOAT128__=16");
#ifdef TARGET_LIBC_PROVIDES_HWCAP_IN_TCB
builtin_define ("__BUILTIN_CPU_SUPPORTS__");
#endif

21
gcc/testsuite/gcc.target/powerpc/pr99708.c Normal file
View File

@ -0,0 +1,21 @@
/* { dg-do run } */
/* { require-effective-target ppc_float128_sw } */
/* { dg-options "-O2 -mvsx -mfloat128" } */
/*
* PR target/99708
*
* Verify that __SIZEOF_FLOAT128__ and __SIZEOF_IBM128__ are properly defined.
*/
#include <stdlib.h>
int main (void)
{
if (__SIZEOF_FLOAT128__ != sizeof (__float128)
|| __SIZEOF_IBM128__ != sizeof (__ibm128))
abort ();
return 0;
}