75 lines
2.9 KiB
LLVM
75 lines
2.9 KiB
LLVM
|
; RUN: llc -mtriple=arm-apple-darwin %s -o %t
|
||
|
|
; RUN: FileCheck %s < %t
|
||
|
|
; RUN: FileCheck %s -check-prefix=GOT-EQUIV < %t
|
||
|
|
|
||
|
|
; GOT equivalent globals references can be replaced by the GOT entry of the
|
||
|
|
; final symbol instead.
|
||
|
|
|
||
|
|
%struct.data = type { i32, %struct.anon }
|
||
|
|
%struct.anon = type { i32, i32 }
|
||
|
|
|
||
|
|
; Check that these got equivalent symbols are never emitted or used
|
||
|
|
; GOT-EQUIV-NOT: _localgotequiv
|
||
|
|
; GOT-EQUIV-NOT: _extgotequiv
|
||
|
|
@localfoo = global i32 42
|
||
|
|
@localgotequiv = private unnamed_addr constant i32* @localfoo
|
||
|
|
|
||
|
|
@extfoo = external global i32
|
||
|
|
@extgotequiv = private unnamed_addr constant i32* @extfoo
|
||
|
|
|
||
|
|
; Don't replace GOT equivalent usage within instructions and emit the GOT
|
||
|
|
; equivalent since it can't be replaced by the GOT entry. @bargotequiv is
|
||
|
|
; used by an instruction inside @t0.
|
||
|
|
;
|
||
|
|
; CHECK: l_bargotequiv:
|
||
|
|
; CHECK-NEXT: .long _extbar
|
||
|
|
@extbar = external global i32
|
||
|
|
@bargotequiv = private unnamed_addr constant i32* @extbar
|
||
|
|
|
||
|
|
@table = global [4 x %struct.data] [
|
||
|
|
; CHECK-LABEL: _table
|
||
|
|
%struct.data { i32 1, %struct.anon { i32 2, i32 3 } },
|
||
|
|
; Test GOT equivalent usage inside nested constant arrays.
|
||
|
|
; CHECK: .long 5
|
||
|
|
; CHECK-NOT: l_localgotequiv-(_table+20)
|
||
|
|
; CHECK-NEXT: L_localfoo$non_lazy_ptr-(_table+20)
|
||
|
|
%struct.data { i32 4, %struct.anon { i32 5,
|
||
|
|
i32 sub (i32 ptrtoint (i32** @localgotequiv to i32),
|
||
|
|
i32 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i32 1, i32 1, i32 1) to i32))}
|
||
|
|
},
|
||
|
|
; CHECK: .long 5
|
||
|
|
; CHECK-NOT: l_extgotequiv-(_table+32)
|
||
|
|
; CHECK-NEXT: L_extfoo$non_lazy_ptr-(_table+32)
|
||
|
|
%struct.data { i32 4, %struct.anon { i32 5,
|
||
|
|
i32 sub (i32 ptrtoint (i32** @extgotequiv to i32),
|
||
|
|
i32 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i32 2, i32 1, i32 1) to i32))}
|
||
|
|
},
|
||
|
|
; Test support for arbitrary constants into the GOTPCREL offset
|
||
|
|
; CHECK: .long 5
|
||
|
|
; CHECK-NOT: (l_extgotequiv-(_table+44))+24
|
||
|
|
; CHECK-NEXT: L_extfoo$non_lazy_ptr-(_table+20)
|
||
|
|
%struct.data { i32 4, %struct.anon { i32 5,
|
||
|
|
i32 add (i32 sub (i32 ptrtoint (i32** @extgotequiv to i32),
|
||
|
|
i32 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i32 3, i32 1, i32 1) to i32)),
|
||
|
|
i32 24)}
|
||
|
|
}
|
||
|
|
], align 16
|
||
|
|
|
||
|
|
; Test multiple uses of GOT equivalents.
|
||
|
|
; CHECK-LABEL: _delta
|
||
|
|
; CHECK: .long L_extfoo$non_lazy_ptr-_delta
|
||
|
|
@delta = global i32 sub (i32 ptrtoint (i32** @extgotequiv to i32),
|
||
|
|
i32 ptrtoint (i32* @delta to i32))
|
||
|
|
|
||
|
|
; CHECK-LABEL: _deltaplus:
|
||
|
|
; CHECK: .long L_localfoo$non_lazy_ptr-(_deltaplus-55)
|
||
|
|
@deltaplus = global i32 add (i32 sub (i32 ptrtoint (i32** @localgotequiv to i32),
|
||
|
|
i32 ptrtoint (i32* @deltaplus to i32)),
|
||
|
|
i32 55)
|
||
|
|
|
||
|
|
define i32 @t0(i32 %a) {
|
||
|
|
%x = add i32 sub (i32 ptrtoint (i32** @bargotequiv to i32),
|
||
|
|
i32 ptrtoint (i32 (i32)* @t0 to i32)), %a
|
||
|
|
ret i32 %x
|
||
|
|
}
|