name mangling - What does the GCC function suffix .constprop mean? -

name mangling - What does the GCC function suffix .constprop mean? -

looking @ disassembly of c++ program, see functions _z41__static_initialization_and_destruction_0ii.constprop.221. constprop mean in case? appears similar in appearance isra suffix (and combined, e.g. .isra.124.constprop.226), means else.

from source code comments i've read - indicate functions have been cloned during optimization.

edit: may answer, maybe not.

simple constant propagation

this file implements constant propagation , merging. looks instructions involving constant operands , replaces them constant value instead of instruction. example:

add i32 1, 2

becomes

i32 3

note: pass has habit of making definitions dead. thought to run die (dead instruction elimination) pass sometime after running pass.

source

gcc name-mangling