http://llvm.org/bugs/show_bug.cgi?id=11633
Bug #: 11633
Summary: Binary identical template instantiations are not
merged
Product: clang
Version: trunk
Platform: Macintosh
OS/Version: MacOS X
Status: NEW
Severity: enhancement
Priority: P
Component: LLVM Codegen
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 7782
--> http://llvm.org/bugs/attachment.cgi?id=7782
testcase
Function templates instantiated for different integral types that produce
identical code are not merged into a single function.
In the attached example this is demonstrated for int and an enum type.
Codegen produced with clang -Os -std=gnu++0x -flto -m32 -lstdc++ -ffast-math.
Sometimes clang even produces very slightly different code for example for
unsigned int and enum instantiations of certain functions for which MSVC
generates identical code and merges the functions.
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