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-rw-r--r--gcc/value-range.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/value-range.h b/gcc/value-range.h
index 33f204a..d0a8475 100644
--- a/gcc/value-range.h
+++ b/gcc/value-range.h
@@ -1558,7 +1558,13 @@ range_compatible_p (tree type1, tree type2)
// types_compatible_p requires conversion in both directions to be useless.
// GIMPLE only requires a cast one way in order to be compatible.
// Ranges really only need the sign and precision to be the same.
- return (TYPE_PRECISION (type1) == TYPE_PRECISION (type2)
- && TYPE_SIGN (type1) == TYPE_SIGN (type2));
+ return TYPE_SIGN (type1) == TYPE_SIGN (type2)
+ && (TYPE_PRECISION (type1) == TYPE_PRECISION (type2)
+ // FIXME: As PR112788 shows, for now on rs6000 _Float128 has
+ // type precision 128 while long double has type precision 127
+ // but both have the same mode so their precision is actually
+ // the same, workaround it temporarily.
+ || (SCALAR_FLOAT_TYPE_P (type1)
+ && TYPE_MODE (type1) == TYPE_MODE (type2)));
}
#endif // GCC_VALUE_RANGE_H