File: arm64-2012-05-09-LOADgot-bug.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (22 lines) | stat: -rw-r--r-- 878 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: llc -mtriple=arm64-apple-ios < %s | FileCheck %s
; RUN: llc -mtriple=arm64-linux-gnu -relocation-model=pic < %s | FileCheck %s --check-prefix=CHECK-LINUX
; <rdar://problem/11392109>

define hidden void @t(ptr %addr) optsize ssp {
entry:
  store i64 zext (i32 ptrtoint (ptr @x to i32) to i64), ptr %addr, align 8
; CHECK:             adrp    x{{[0-9]+}}, _x@GOTPAGE
; CHECK:        ldr     x{{[0-9]+}}, [x{{[0-9]+}}, _x@GOTPAGEOFF]
; CHECK-NEXT:        and     x{{[0-9]+}}, x{{[0-9]+}}, #0xffffffff
; CHECK-NEXT:        str     x{{[0-9]+}}, [x{{[0-9]+}}]
  ret void
}

declare i64 @x(i32) optsize

; Worth checking the Linux code is sensible too: only way to access
; the GOT is via a 64-bit load. Just loading wN is unacceptable
; (there's no ELF relocation to do that).

; CHECK-LINUX: adrp {{x[0-9]+}}, :got:x
; CHECK-LINUX: ldr {{x[0-9]+}}, [{{x[0-9]+}}, :got_lo12:x]