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* [gcc r13-4964] ada: Another small adjustment to special resolution of membership test
@ 2023-01-03 9:34 Marc Poulhi?s
0 siblings, 0 replies; only message in thread
From: Marc Poulhi?s @ 2023-01-03 9:34 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:48d9f7cb215f1af996788aee07808339a786a18d
commit r13-4964-g48d9f7cb215f1af996788aee07808339a786a18d
Author: Eric Botcazou <ebotcazou@adacore.com>
Date: Wed Dec 7 17:54:37 2022 +0100
ada: Another small adjustment to special resolution of membership test
This goes back to the original implementation but keeps the special size
test with universal_integer to cope with its limited range.
gcc/ada/
* sem_res.adb (Resolve_Membership_Op): Adjust again latest change.
Diff:
---
gcc/ada/sem_res.adb | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/gcc/ada/sem_res.adb b/gcc/ada/sem_res.adb
index b54ed93a7f7..348d272a399 100644
--- a/gcc/ada/sem_res.adb
+++ b/gcc/ada/sem_res.adb
@@ -10105,11 +10105,11 @@ package body Sem_Res is
then
T := Etype (R);
- -- If the type of the left operand is universal_integer and that of the
- -- right operand is smaller, then we do not resolve the operands to the
- -- tested type but to universal_integer instead. If not conforming to
- -- the letter, it's conforming to the spirit of the specification of
- -- membership tests, which are typically used to guard an operation and
+ -- If the left operand is of a universal numeric type and the right
+ -- operand is not, we do not resolve the operands to the tested type
+ -- but to the universal type instead. If not conforming to the letter,
+ -- it's conforming to the spirit of the specification of membership
+ -- tests, which are typically used to guard a specific operation and
-- ought not to fail a check in doing so. Without this, in the case of
-- type Small_Length is range 1 .. 16;
@@ -10127,9 +10127,14 @@ package body Sem_Res is
-- for example the large values of Long_Long_Long_Unsigned.
elsif not Is_Overloaded (L)
- and then Etype (L) = Universal_Integer
+ and then Is_Universal_Numeric_Type (Etype (L))
and then (Is_Overloaded (R)
- or else RM_Size (Etype (R)) < RM_Size (Universal_Integer))
+ or else
+ (not Is_Universal_Numeric_Type (Etype (R))
+ and then
+ (not Is_Integer_Type (Etype (R))
+ or else
+ RM_Size (Etype (R)) < RM_Size (Universal_Integer))))
then
T := Etype (L);
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