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llvm-project/llvm/test/ThinLTO/X86/Inputs/strong_non_prevailing.ll

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[LTO] Drop non-prevailing definitions only if linkage is not local or appending Summary: This fixes PR 37422 In ELF, non-weak symbols can also be non-prevailing. In this particular PR, the __llvm_profile_* symbols are non-prevailing but weren't getting dropped - causing multiply-defined errors with lld. Also add a test, strong_non_prevailing.ll, to ensure that multiple copies of a strong symbol are dropped. To fix the test regressions exposed by this fix, - do not mark prevailing copies for symbols with 'appending' linkage. There's no one prevailing copy for such symbols. - fix the prevailing version in dead-strip-fulllto.ll - explicitly pass exported symbols to llvm-lto in fumcimport.ll and funcimport_var.ll Reviewers: tejohnson, pcc Subscribers: mehdi_amini, inglorion, eraman, steven_wu, dexonsmith, dang, srhines, llvm-commits Differential Revision: https://reviews.llvm.org/D54125 llvm-svn: 346436
2018-11-09 04:10:07 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
$__llvm_profile_filename = comdat any
@__llvm_profile_filename = constant [19 x i8] c"default_%m.profraw\00", comdat