| ; RUN: llc -mtriple=arm64-apple-darwin %s -o - | FileCheck %s |
| |
| ; 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 } |
| |
| @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: .quad _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: .long _localgotequiv-(_table+20) |
| ; CHECK-NEXT: Ltmp0: |
| ; CHECK-NEXT: .long _localfoo@GOT-Ltmp0 |
| %struct.data { i32 4, %struct.anon { i32 5, |
| i32 trunc (i64 sub (i64 ptrtoint (i32** @localgotequiv to i64), |
| i64 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i64 1, i32 1, i32 1) to i64)) |
| to i32)} |
| }, |
| |
| ; CHECK: .long 5 |
| ; CHECK-NOT: _extgotequiv-(_table+32) |
| ; CHECK-NEXT: Ltmp1: |
| ; CHECK-NEXT: _extfoo@GOT-Ltmp1 |
| %struct.data { i32 4, %struct.anon { i32 5, |
| i32 trunc (i64 sub (i64 ptrtoint (i32** @extgotequiv to i64), |
| i64 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i64 2, i32 1, i32 1) to i64)) |
| to i32)} |
| }, |
| ; Test support for arbitrary constants into the GOTPCREL offset, which is |
| ; supported on x86-64 but not on ARM64 |
| |
| ; CHECK: .long 5 |
| ; CHECK-NEXT: .long ((l_extgotequiv-_table)-44)+24 |
| %struct.data { i32 4, %struct.anon { i32 5, |
| i32 add (i32 trunc (i64 sub (i64 ptrtoint (i32** @extgotequiv to i64), |
| i64 ptrtoint (i32* getelementptr inbounds ([4 x %struct.data], [4 x %struct.data]* @table, i32 0, i64 3, i32 1, i32 1) to i64)) |
| to i32), i32 24)} |
| } |
| ], align 16 |
| |
| ; Test multiple uses of GOT equivalents. |
| |
| ; CHECK-LABEL: _delta |
| ; CHECK: Ltmp2: |
| ; CHECK-NEXT: .long _extfoo@GOT-Ltmp2 |
| @delta = global i32 trunc (i64 sub (i64 ptrtoint (i32** @extgotequiv to i64), |
| i64 ptrtoint (i32* @delta to i64)) |
| to i32) |
| |
| ; CHECK-LABEL: _deltaplus: |
| ; CHECK: .long (l_localgotequiv-_deltaplus)+55 |
| @deltaplus = global i32 add (i32 trunc (i64 sub (i64 ptrtoint (i32** @localgotequiv to i64), |
| i64 ptrtoint (i32* @deltaplus to i64)) |
| to i32), i32 55) |
| |
| define i32 @t0(i32 %a) { |
| %x = add i32 trunc (i64 sub (i64 ptrtoint (i32** @bargotequiv to i64), |
| i64 ptrtoint (i32 (i32)* @t0 to i64)) |
| to i32), %a |
| ret i32 %x |
| } |
| |
| ; Check that these got equivalent symbols are emitted on ARM64. Since ARM64 |
| ; does not support encoding an extra offset with @GOT, we still need to emit the |
| ; equivalents for use by such IR constructs. Check them at the end of the test |
| ; since they will start out as GOT equivalent candidates, but they are actually |
| ; needed and are therefore emitted at the end. |
| |
| ; CHECK-LABEL: l_localgotequiv: |
| ; CHECK-NEXT: .quad _localfoo |
| |
| ; CHECK-LABEL: l_extgotequiv: |
| ; CHECK-NEXT: .quad _extfoo |