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* [gcc r12-7792] rs6000: Skip overload instances with NULL fntype [PR104967]
@ 2022-03-24 1:47 Kewen Lin
0 siblings, 0 replies; only message in thread
From: Kewen Lin @ 2022-03-24 1:47 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:497bde3ab92b2c292f78672db341bbb7cc1bcf1f
commit r12-7792-g497bde3ab92b2c292f78672db341bbb7cc1bcf1f
Author: Kewen Lin <linkw@linux.ibm.com>
Date: Wed Mar 23 20:46:06 2022 -0500
rs6000: Skip overload instances with NULL fntype [PR104967]
For some overload built-in function instance, if it requires
a data type which isn't defined on the target, its fntype
would be initialized as NULL. This patch is to consider
this possibility in function find_instance, as shown in
PR104967.
PR target/104967
gcc/ChangeLog:
* config/rs6000/rs6000-c.cc (find_instance): Skip instances with null
function types.
Diff:
---
gcc/config/rs6000/rs6000-c.cc | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/gcc/config/rs6000/rs6000-c.cc b/gcc/config/rs6000/rs6000-c.cc
index 2f0f4fe337d..84bb98f94fb 100644
--- a/gcc/config/rs6000/rs6000-c.cc
+++ b/gcc/config/rs6000/rs6000-c.cc
@@ -1686,6 +1686,10 @@ find_instance (bool *unsupported_builtin, ovlddata **instance,
ovlddata *inst = *instance;
gcc_assert (inst != NULL);
+ /* It is possible for an instance to require a data type that isn't
+ defined on this target, in which case inst->fntype will be NULL. */
+ if (!inst->fntype)
+ return error_mark_node;
tree fntype = rs6000_builtin_info[inst->bifid].fntype;
tree parmtype0 = TREE_VALUE (TYPE_ARG_TYPES (fntype));
tree parmtype1 = TREE_VALUE (TREE_CHAIN (TYPE_ARG_TYPES (fntype)));
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