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: Ltmp1: 32 ; CHECK-NEXT: .long _localfoo@GOT-Ltmp1 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: Ltmp2: 42 ; CHECK-NEXT: _extfoo@GOT-Ltmp2 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: Ltmp3: 64 ; CHECK-NEXT: .long _extfoo@GOT-Ltmp3 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 75 define 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
