llvm-project/lld/test/ELF/gc-sections-undefined.s

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
# RUN: ld.lld %t -o %t1 --gc-sections --undefined=foo
# RUN: llvm-readobj -t %t1 | FileCheck %s

# CHECK: foo

.section .foo,"ax"
.global foo
foo:
[ELF] - Add a test for --gc-sections --undefined=foo combination. GC code contains following logic uncovered by tests: for (StringRef S : Config->Undefined) MarkSymbol(Symtab->find(S)); As far I can tell we never had test for that before, patch fixes it. Differential revision: https://reviews.llvm.org/D36519 llvm-svn: 310556 2017-08-10 16:15:33 +08:00			`# REQUIRES: x86`
			`# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t`
			`# RUN: ld.lld %t -o %t1 --gc-sections --undefined=foo`
			`# RUN: llvm-readobj -t %t1 \| FileCheck %s`

			`# CHECK: foo`

			`.section .foo,"ax"`
			`.global foo`
			`foo:`