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| author | Steve Baird <baird@adacore.com> | 2022-04-20 14:48:11 -0700 |
|---|---|---|
| committer | Pierre-Marie de Rodat <derodat@adacore.com> | 2022-05-30 08:29:03 +0000 |
| commit | ebddfe50d8bf48458db0b658b962f62548dd671f (patch) | |
| tree | 4e39c5ba33e7802d161e4ad0599e0728e7c54e78 /gcc/ada/lib-xref.ads | |
| parent | 567bf44932542b8f861dc7880dba3273fb5838ce (diff) | |
| download | gcc-ebddfe50d8bf48458db0b658b962f62548dd671f.zip gcc-ebddfe50d8bf48458db0b658b962f62548dd671f.tar.gz gcc-ebddfe50d8bf48458db0b658b962f62548dd671f.tar.bz2 | |
[Ada] Incorrect determination of whether an expression is predicate-static
The expression given in a Static_Predicate aspect specification is
required to be predicate-static. The implementation of this compile-time
check was incorrect in some cases. There were problems in both
directions: expressions that are not predicate-static were incorrectly
treated as though they were and vice versa. This led to both accepting
invalid code and to rejecting valid code.
gcc/ada/
* sem_ch13.adb (Is_Predicate_Static): Do not generate warnings
about subexpressions of enclosing expressions. Generate warnings
for predicates that are known to be always true or always false,
except in the case where the predicate is expressed as a Boolean
literal. Deal with non-predicate-static expressions that have
been transformed into predicate-static expressions. Add missing
Is_Type_Ref call to N_Membership_Test case.
Diffstat (limited to 'gcc/ada/lib-xref.ads')
0 files changed, 0 insertions, 0 deletions