1; RUN: llc -mtriple=arm64-apple-darwin %s -o - | FileCheck %s 2 3; GOT equivalent globals references can be replaced by the GOT entry of the 4; final symbol instead. 5 6%struct.data = type { i32, %struct.anon } 7%struct.anon = type { i32, i32 } 8 9@localfoo = global i32 42 10@localgotequiv = private unnamed_addr constant i32* @localfoo 11 12@extfoo = external global i32 13@extgotequiv = private unnamed_addr constant i32* @extfoo 14 15; Don't replace GOT equivalent usage within instructions and emit the GOT 16; equivalent since it can't be replaced by the GOT entry. @bargotequiv is 17; used by an instruction inside @t0. 18; 19; CHECK: l_bargotequiv: 20; CHECK-NEXT: .quad _extbar 21@extbar = external global i32 22@bargotequiv = private unnamed_addr constant i32* @extbar 23 24@table = global [4 x %struct.data] [ 25; CHECK-LABEL: _table 26 %struct.data { i32 1, %struct.anon { i32 2, i32 3 } }, 27; Test GOT equivalent usage inside nested constant arrays. 28 29; CHECK: .long 5 30; CHECK-NOT: .long _localgotequiv-(_table+20) 31; CHECK-NEXT: Ltmp0: 32; CHECK-NEXT: .long _localfoo@GOT-Ltmp0 33 %struct.data { i32 4, %struct.anon { i32 5, 34 i32 trunc (i64 sub (i64 ptrtoint (i32** @localgotequiv to i64), 35 i64 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i64 1, i32 1, i32 1) to i64)) 36 to i32)} 37 }, 38 39; CHECK: .long 5 40; CHECK-NOT: _extgotequiv-(_table+32) 41; CHECK-NEXT: Ltmp1: 42; CHECK-NEXT: _extfoo@GOT-Ltmp1 43 %struct.data { i32 4, %struct.anon { i32 5, 44 i32 trunc (i64 sub (i64 ptrtoint (i32** @extgotequiv to i64), 45 i64 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i64 2, i32 1, i32 1) to i64)) 46 to i32)} 47 }, 48; Test support for arbitrary constants into the GOTPCREL offset, which is 49; supported on x86-64 but not on ARM64 50 51; CHECK: .long 5 52; CHECK-NEXT: .long ((l_extgotequiv-_table)-44)+24 53 %struct.data { i32 4, %struct.anon { i32 5, 54 i32 add (i32 trunc (i64 sub (i64 ptrtoint (i32** @extgotequiv to i64), 55 i64 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i64 3, i32 1, i32 1) to i64)) 56 to i32), i32 24)} 57 } 58], align 16 59 60; Test multiple uses of GOT equivalents. 61 62; CHECK-LABEL: _delta 63; CHECK: Ltmp2: 64; CHECK-NEXT: .long _extfoo@GOT-Ltmp2 65@delta = global i32 trunc (i64 sub (i64 ptrtoint (i32** @extgotequiv to i64), 66 i64 ptrtoint (i32* @delta to i64)) 67 to i32) 68 69; CHECK-LABEL: _deltaplus: 70; CHECK: .long (l_localgotequiv-_deltaplus)+55 71@deltaplus = global i32 add (i32 trunc (i64 sub (i64 ptrtoint (i32** @localgotequiv to i64), 72 i64 ptrtoint (i32* @deltaplus to i64)) 73 to i32), i32 55) 74 75define i32 @t0(i32 %a) { 76 %x = add i32 trunc (i64 sub (i64 ptrtoint (i32** @bargotequiv to i64), 77 i64 ptrtoint (i32 (i32)* @t0 to i64)) 78 to i32), %a 79 ret i32 %x 80} 81 82; Check that these got equivalent symbols are emitted on ARM64. Since ARM64 83; does not support encoding an extra offset with @GOT, we still need to emit the 84; equivalents for use by such IR constructs. Check them at the end of the test 85; since they will start out as GOT equivalent candidates, but they are actually 86; needed and are therefore emitted at the end. 87 88; CHECK-LABEL: l_localgotequiv: 89; CHECK-NEXT: .quad _localfoo 90 91; CHECK-LABEL: l_extgotequiv: 92; CHECK-NEXT: .quad _extfoo 93