http://llvm.org/bugs/show_bug.cgi?id=19263
Bug ID: 19263
Summary: Instcombine drops nsw when combining adds into mul
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
John Regehr points out that instcombine is missing an opportunity to preserve
nsw on adds when forming muls:
http://blog.regehr.org/archives/1122
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