Previously, we infer machine type at the very end of linking after
all symbols are resolved. That's actually too late because machine
type affects how we mangle symbols (whether or not we need to
add "_").
For example, /entry:foo adds "_foo" to the symbol table if x86 but
"foo" if x64.
This patch moves the code to infer machine type, so that machine
type is inferred based on input files given via the command line
(but not based on .directives files).
llvm-svn: 241843
The new mechanism is less code, and fixes the case where all inputs
are archives.
Differential Revision: http://reviews.llvm.org/D10136
llvm-svn: 238618
Rui Ueyama