22b19da9fc
As defined in LangRef, aliases do not have sections. However, LLVM's
GlobalAlias class inherits from GlobalValue, which means we can read and
set its section. We should probably ban that as a separate change,
since it doesn't make much sense for an alias to have a section that
differs from its aliasee.
Fixes PR18757, where the section was being lost on the global in code
from Clang like:
extern "C" {
__attribute__((used, section("CUSTOM"))) static int in_custom_section;
}
Reviewers: rafael.espindola
Differential Revision: http://llvm-reviews.chandlerc.com/D2758
llvm-svn: 201286
9 lines
376 B
LLVM
9 lines
376 B
LLVM
; RUN: opt -S -globalopt < %s | FileCheck %s
|
|
|
|
@_Z17in_custom_section = internal global i8 42, section "CUSTOM"
|
|
@in_custom_section = protected dllexport alias internal i8* @_Z17in_custom_section
|
|
|
|
; CHECK: @in_custom_section = internal protected dllexport global i8 42, section "CUSTOM"
|
|
|
|
@llvm.used = appending global [1 x i8*] [i8* @in_custom_section], section "llvm.metadata"
|