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-rw-r--r--gcc/tree.def6
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree.def b/gcc/tree.def
index c4ad8d0..2c37e44 100644
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -135,7 +135,11 @@ DEFTREECODE (OFFSET_TYPE, "offset_type", tcc_type, 0)
DEFTREECODE (ENUMERAL_TYPE, "enumeral_type", tcc_type, 0)
/* Boolean type (true or false are the only values). Looks like an
- INTEGRAL_TYPE. */
+ INTEGER_TYPE, but must be dealt with specially because TYPE_PRECISION
+ may be arbitrary despite the restricted set of valid values (in other
+ words, boolean types with TYPE_PRECISION > 1 exist in some languages).
+ Similarly, TYPE_UNSIGNED may be false for components of vector masks,
+ as well as for boolean types in languages other than C. */
DEFTREECODE (BOOLEAN_TYPE, "boolean_type", tcc_type, 0)
/* Integer types in all languages, including char in C.