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* [gcc(refs/vendors/ARM/heads/morello)] morello: Adjust odr_types_equivalent_p for capabilities
@ 2022-05-20 12:34 Alex Coplan
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From: Alex Coplan @ 2022-05-20 12:34 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:68235c7e93261efd4be7f6a0e9a9d005b412880a
commit 68235c7e93261efd4be7f6a0e9a9d005b412880a
Author: Alex Coplan <alex.coplan@arm.com>
Date: Fri Mar 18 11:49:28 2022 +0000
morello: Adjust odr_types_equivalent_p for capabilities
Here we update the simple scalar case of odr_types_equivalent_p to also
handle INTCAP_TYPEs and use TYPE_CAP_PRECISION when checking for
precision mismatches. If the types disagree on their TYPE_CAP_PRECISION
(e.g. if one is a capability pointer and the other is a non-capability
pointer), then they cannot be ODR equivalent.
gcc/ChangeLog:
* ipa-devirt.c (odr_types_equivalent_p): Also handle
INTCAP_TYPE, use TYPE_CAP_PRECISION in scalar base case.
Diff:
---
gcc/ipa-devirt.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/ipa-devirt.c b/gcc/ipa-devirt.c
index 696250c7208..1618761af29 100644
--- a/gcc/ipa-devirt.c
+++ b/gcc/ipa-devirt.c
@@ -1233,6 +1233,7 @@ odr_types_equivalent_p (tree t1, tree t2, bool warn, bool *warned,
/* Non-aggregate types can be handled cheaply. */
if (INTEGRAL_TYPE_P (t1)
+ || INTCAP_TYPE_P (t1)
|| SCALAR_FLOAT_TYPE_P (t1)
|| FIXED_POINT_TYPE_P (t1)
|| TREE_CODE (t1) == VECTOR_TYPE
@@ -1240,7 +1241,7 @@ odr_types_equivalent_p (tree t1, tree t2, bool warn, bool *warned,
|| TREE_CODE (t1) == OFFSET_TYPE
|| POINTER_TYPE_P (t1))
{
- if (TYPE_PRECISION (t1) != TYPE_PRECISION (t2))
+ if (TYPE_CAP_PRECISION (t1) != TYPE_CAP_PRECISION (t2))
{
warn_odr (t1, t2, NULL, NULL, warn, warned,
G_("a type with different precision is defined "
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