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Author	SHA1	Message	Date
Karl-Johan Karlsson	d25e0aac41	[Sema] Fixed faulty shift count warning (#69521 ) Constant values of _BitInt have the bitwith to exactly fit the constant number. This patch fix a problem in Sema when building an APInt where the supplied bitwidth can become too small and simply truncate the value leading to a faulty warning.	2023-10-25 09:48:01 +02:00
Björn Pettersson	7d2b569cc4	[Sema] Handle large shift counts in GetExprRange (#68590 ) GetExprRange did not expect that very large shift counts when narrowing the range based on logical right shifts. So with inputs such as *a >> 123456789012345678901uwb it would hit assertions about trying to convert a too large APInt into uint64_t. This patch fixes that by using the APInt value when determining if we should reduce the range by the shift count or not.	2023-10-10 10:25:01 +02:00

Author

SHA1

Message

Date

Karl-Johan Karlsson

d25e0aac41

[Sema] Fixed faulty shift count warning (#69521 )

Constant values of _BitInt have the bitwith to exactly fit the constant
number. This patch fix a problem in Sema when building an APInt where
the supplied bitwidth can become too small and simply truncate the value
leading to a faulty warning.

2023-10-25 09:48:01 +02:00

Björn Pettersson

7d2b569cc4

[Sema] Handle large shift counts in GetExprRange (#68590 )

GetExprRange did not expect that very large shift counts when
narrowing the range based on logical right shifts. So with inputs
such as
    *a >> 123456789012345678901uwb
it would hit assertions about trying to convert a too large APInt
into uint64_t.
This patch fixes that by using the APInt value when determining if
we should reduce the range by the shift count or not.

2023-10-10 10:25:01 +02:00

2 Commits