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Relax GOTPCREL relocations for tail jmp instructions.

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Differential Revision: https://reviews.llvm.org/D47563

llvm-svn: 333676
This commit is contained in:
Sriraman Tallam 2018-05-31 18:12:33 +00:00
parent 0a4a2bec12
commit 7966bd56fe
2 changed files with 16 additions and 0 deletions
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1
lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
View File

@ -399,6 +399,7 @@ void X86MCCodeEmitter::emitMemModRMByte(const MCInst &MI, unsigned Op,
return X86::reloc_riprel_4byte_movq_load;
case X86::CALL64m:
case X86::JMP64m:
case X86::TAILJMPm64:
case X86::TEST64mr:
case X86::ADC64rm:
case X86::ADD64rm:

15
test/CodeGen/X86/tailjmp_gotpcrel_relax_relocation.ll Normal file
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@ -0,0 +1,15 @@
; RUN: llc -filetype=obj -relax-elf-relocations=true -mtriple=x86_64-linux-gnu -o - %s | llvm-objdump - -d -r | FileCheck %s
; CHECK: jmpq *(%rip)
; CHECK-NEXT: R_X86_64_GOTPCRELX
define i32 @main() {
entry:
%call = tail call i32 @foo()
ret i32 %call
}
; Function Attrs: nonlazybind
declare i32 @foo() #1
attributes #1 = { nonlazybind }