[lld] [llvm] IRSymTab: Record _GLOBAL_OFFSET_TABLE_ for ELF x86 (PR #89463)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,57 @@
+; REQUIRES: x86
+; RUN: rm -rf %t && split-file %s %t && cd %t
+; RUN: llvm-mc -filetype=obj -triple=x86_64 b.s -o b.o
+
+; RUN: cat a.ll medium.ll | llvm-as - -o medium.bc
+; RUN: ld.lld -pie --no-relax medium.bc b.o -o medium
+; RUN: llvm-objdump -d medium | FileCheck %s
+
+; RUN: cat a.ll large.ll | llvm-as - -o large.bc
+; RUN: ld.lld -pie large.bc b.o -o large
+; RUN: llvm-objdump -d large | FileCheck %s
+
+; RUN: cat a.ll medium.ll ref.ll | llvm-as - -o ref.bc
+; RUN: ld.lld -pie --no-relax -u ref ref.bc b.o -o ref
+; RUN: llvm-objdump -d ref | FileCheck %s
+
+; CHECK: movabsq
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MaskRay wrote:

Added `The IR symbol table references _GLOBAL_OFFSET_TABLE_, which causes lld to define the symbol.`

https://github.com/llvm/llvm-project/pull/89463