https://bugs.llvm.org/show_bug.cgi?id=51358
Bug ID: 51358
Summary: Obvious false positive: bleft>0, bleft<=7; scan-build
reports (32 - bleft) < 0
Product: clang
Version: 11.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Created attachment 25107
--> https://bugs.llvm.org/attachment.cgi?id=25107&action=edit
false positive report
Hello.
I'm using scan-build-11 from clang-tools-11 1:11.0.1-2~bpo10+1 (Debian 10).
Attaching the false positive report.
Line 1519: Checking that bleft > 0.
Line 1524: Checking that bleft <= 7.
Line 1527: 1 << (32 - bleft)
scan-build reports that (32 - bleft) is negative. But it cannot be negative,
because bleft=[1..7].
Best regards, Vladimir
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