maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/X86/relptr-rodata.ll

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

22 lines
802 B
LLVM
Raw Normal View History

IR: Teach Constant::needsRelocation() that relative pointers don't need to be relocated. This causes sections with relative pointers to be marked as read only, which means that they won't end up sharing pages with writable data. Differential Revision: https://reviews.llvm.org/D64948 llvm-svn: 366494
2019-07-19 04:56:21 +08:00
; RUN: llc -relocation-model=pic -data-sections -o - %s | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
@hidden = external hidden global i8
@default = external global i8
; CHECK: .section .rodata.rodata
; CHECK: rodata:
; CHECK: .long hidden-rodata
@rodata = hidden constant i32 trunc (i64 sub (i64 ptrtoint (i8* @hidden to i64), i64 ptrtoint (i32* @rodata to i64)) to i32)
; CHECK: .section .data.rel.ro.relro1
; CHECK: relro1:
; CHECK: .long default-relro1
@relro1 = hidden constant i32 trunc (i64 sub (i64 ptrtoint (i8* @default to i64), i64 ptrtoint (i32* @relro1 to i64)) to i32)
; CHECK: .section .data.rel.ro.relro2
; CHECK: relro2:
; CHECK: .long hidden-relro2
@relro2 = constant i32 trunc (i64 sub (i64 ptrtoint (i8* @hidden to i64), i64 ptrtoint (i32* @relro2 to i64)) to i32)