Quote:
From the gcc manual
`-fmerge-constants'
Attempt to merge identical constants (string constants and
floating point constants) across compilation units.
This option is the default for optimized compilation if the
assembler and linker support it. Use `-fno-merge-constants' to
inhibit this behavior.
Enabled at levels `-O', `-O2', `-O3', `-Os'.
Because they're the same string, the compiler may choose (or may be told to) merge identical string constants, so writing "abc" twice in the code results in only one "abc" in the executable.