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

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (22 lines) | stat: -rw-r--r-- 887 bytes parent folder | download | duplicates (23)
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(i64* %addr) optsize ssp {
entry:
  store i64 zext (i32 ptrtoint (i64 (i32)* @x to i32) to i64), i64* %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]