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llvm-mirror/test/Transforms/ThinLTOBitcodeWriter/split-dsolocal.ll
Fangrui Song e44e8f46a9 ThinLTOBitcodeWriter: drop dso_local when a GlobalVariable is converted to a declaration
If we infer the dso_local flag for -fpic, dso_local should be dropped
when we convert a GlobalVariable a declaration. dso_local causes the
generation of direct access (e.g. R_X86_64_PC32). Such relocations referencing
STB_GLOBAL STV_DEFAULT objects are not allowed in a -shared link.

Reviewed By: tejohnson

Differential Revision: https://reviews.llvm.org/D74749
2020-03-05 18:09:33 -08:00

24 lines
924 B
LLVM

; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t %s
; RUN: llvm-modextract -b -n 0 -o %t0.bc %t
; RUN: llvm-modextract -b -n 1 -o %t1.bc %t
; RUN: llvm-dis -o - %t0.bc | FileCheck --check-prefix=M0 %s
; RUN: llvm-dis -o - %t1.bc | FileCheck --check-prefix=M1 %s
; M0: @default = external constant [1 x i8]
; M0: @hidden = external hidden constant [1 x i8]
; M0: @al = external global [1 x i8]
; M1: @default = dso_local constant [1 x i8] c"0", !type !0
; M1: @hidden = hidden constant [1 x i8] c"0", !type !0
; M1: @al = dso_local alias [1 x i8], [1 x i8]* @default
@default = dso_local constant [1 x i8] c"0", !type !0
@hidden = dso_local hidden constant [1 x i8] c"0", !type !0
@al = dso_local alias [1 x i8], [1 x i8]* @default
define [1 x i8]* @f_default() { ret [1 x i8]* @default }
define [1 x i8]* @f_hidden() { ret [1 x i8]* @hidden }
define [1 x i8]* @f_al() { ret [1 x i8]* @al }
!0 = !{i32 0, !"typeid"}