| ; RUN: llc -mtriple=i386-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$non_lazy_ptr-(_deltaplus-55) |
| @deltaplus = global i32 add (i32 sub (i32 ptrtoint (i32** @localgotequiv to i32), |
| i32 ptrtoint (i32* @deltaplus to i32)), |
| i32 55) |
| |
| define i32 @t0(i32 %a) { |
| %x = add i32 sub (i32 ptrtoint (i32** @bargotequiv to i32), |
| i32 ptrtoint (i32 (i32)* @t0 to i32)), %a |
| ret i32 %x |
| } |
| |
| ; Test indirect local symbols. |
| ; CHECK-LABEL: _localindirect |
| ; CHECK: .long 65603 |
| @localindirect = internal constant i32 65603 |
| @got.localindirect = private unnamed_addr constant i32* @localindirect |
| |
| ; CHECK-LABEL: _localindirectuser: |
| ; CHECK: .long L_localindirect$non_lazy_ptr-_localindirectuser |
| @localindirectuser = internal constant |
| i32 sub (i32 ptrtoint (i32** @got.localindirect to i32), |
| i32 ptrtoint (i32* @localindirectuser to i32)) |
| |
| ; Test internal indirect local symbols where the user doesn't see the |
| ; definition of the other symbols yet. |
| |
| ; We used to check if the symbol is defined and not external to guess if it has |
| ; local linkage, but that doesn't work if the symbol is defined after. The code |
| ; should check if the GlobalValue itself has local linkage. |
| |
| ; CHECK-LABEL: _undeflocalindirectuser: |
| ; CHECK: .long L_undeflocalindirect$non_lazy_ptr-_undeflocalindirectuser |
| @undeflocalindirectuser = internal constant |
| i32 sub (i32 ptrtoint (i32** @got.undeflocalindirect to i32), |
| i32 ptrtoint (i32* @undeflocalindirectuser to i32)), |
| section "__TEXT,__const" |
| |
| ; CHECK-LABEL: _undeflocalindirect: |
| ; CHECK: .long 65603 |
| @undeflocalindirect = internal constant i32 65603 |
| @got.undeflocalindirect = private unnamed_addr constant i32* @undeflocalindirect |
| |
| ; CHECK-LABEL: .section __IMPORT,__pointers |
| |
| ; CHECK-LABEL: L_localfoo$non_lazy_ptr: |
| ; CHECK: .indirect_symbol _localfoo |
| ; CHECK-NOT: .long _localfoo |
| ; CHECK-NEXT: .long 0 |
| |
| ; CHECK-LABEL: L_localindirect$non_lazy_ptr: |
| ; CHECK: .indirect_symbol _localindirect |
| ; CHECK-NOT: .long 0 |
| ; CHECK-NEXT: .long _localindirect |
| |
| ; CHECK-LABEL: L_undeflocalindirect$non_lazy_ptr: |
| ; CHECK: .indirect_symbol _undeflocalindirect |
| ; CHECK-NOT: .long 0 |
| ; CHECK-NEXT: .long _undeflocalindirect |