https://bugs.llvm.org/show_bug.cgi?id=51694
Bug ID: 51694
Summary: [missed optimization opportunity] clang still
generates code for empty std::map iteration
Product: clang
Version: 11.0
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Created attachment 25208
--> https://bugs.llvm.org/attachment.cgi?id=25208&action=edit
testcase.cpp
The attached testcase iterates through the std::map object with empty for-body.
clang-14 still generates some code in this function when it should be empty.
Replacing the type of the argument with std::vector correctly leads to an empty
function.
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