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rs6000: Set up ieee128_float_type_node correctly (PR82625)

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We shouldn't init __ieee128 to be the same as long double if the
latter is not even a 128-bit type.

This also reorders the nearby __ibm128 code so both types use similar
logic.


	PR target/82625
	* config/rs6000/rs6000.c (rs6000_init_builtins): Do not set
	ieee128_float_type_node to long_double_type_node unless
	TARGET_LONG_DOUBLE_128 is set.

From-SVN: r262152
This commit is contained in:
Segher Boessenkool 2018-06-26 17:16:58 +02:00 • committed by Segher Boessenkool
parent 4f5b9c803a
commit 54647e7b72
2 changed files with 15 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2018-06-26 Segher Boessenkool <segher@kernel.crashing.org>
PR target/82625
* config/rs6000/rs6000.c (rs6000_init_builtins): Do not set
ieee128_float_type_node to long_double_type_node unless
TARGET_LONG_DOUBLE_128 is set.
2018-06-26 David Malcolm <dmalcolm@redhat.com>
* cfgloop.c (get_loop_location): Convert return type from

13
gcc/config/rs6000/rs6000.c
View file

@ -16421,21 +16421,24 @@ rs6000_init_builtins (void)
__ieee128. */
if (TARGET_FLOAT128_TYPE)
{
if (TARGET_IEEEQUAD || !TARGET_LONG_DOUBLE_128)
if (!TARGET_IEEEQUAD && TARGET_LONG_DOUBLE_128)
ibm128_float_type_node = long_double_type_node;
else
{
ibm128_float_type_node = make_node (REAL_TYPE);
TYPE_PRECISION (ibm128_float_type_node) = 128;
SET_TYPE_MODE (ibm128_float_type_node, IFmode);
layout_type (ibm128_float_type_node);
}
else
ibm128_float_type_node = long_double_type_node;
lang_hooks.types.register_builtin_type (ibm128_float_type_node,
"__ibm128");
ieee128_float_type_node
= TARGET_IEEEQUAD ? long_double_type_node : float128_type_node;
if (TARGET_IEEEQUAD && TARGET_LONG_DOUBLE_128)
ieee128_float_type_node = long_double_type_node;
else
ieee128_float_type_node = float128_type_node;
lang_hooks.types.register_builtin_type (ieee128_float_type_node,
"__ieee128");
}