test/CodeGen/ARM/global-merge-external.ll

   1 ; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge                                 | FileCheck %s --check-prefix=CHECK-MERGE
   2 ; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge -global-merge-on-external=true  | FileCheck %s --check-prefix=CHECK-MERGE
   3 ; RUN: llc < %s -mtriple=arm-eabi  -arm-global-merge -global-merge-on-external=false | FileCheck %s --check-prefix=CHECK-NO-MERGE
   4 ; RUN: llc < %s -mtriple=arm-macho -arm-global-merge                                 | FileCheck %s --check-prefix=CHECK-NO-MERGE
   5
   6 @x = global i32 0, align 4
   7 @y = global i32 0, align 4
   8 @z = global i32 0, align 4
   9
  10 define void @f1(i32 %a1, i32 %a2) {
  11 ;CHECK:          f1:
  12 ;CHECK:          ldr {{r[0-9]+}}, [[LABEL1:\.LCPI[0-9]+_[0-9]]]
  13 ;CHECK:          [[LABEL1]]:
  14 ;CHECK-MERGE:    .long _MergedGlobals_x
  15 ;CHECK-NO-MERGE: .long {{_?x}}
  16   store i32 %a1, i32* @x, align 4
  17   store i32 %a2, i32* @y, align 4
  18   ret void
  19 }
  20
  21 define void @g1(i32 %a1, i32 %a2) {
  22 ;CHECK:          g1:
  23 ;CHECK:          ldr {{r[0-9]+}}, [[LABEL2:\.LCPI[0-9]+_[0-9]]]
  24 ;CHECK:          [[LABEL2]]:
  25 ;CHECK-MERGE:    .long _MergedGlobals_x
  26 ;CHECK-NO-MERGE: .long {{_?y}}
  27   store i32 %a1, i32* @y, align 4
  28   store i32 %a2, i32* @z, align 4
  29   ret void
  30 }
  31
  32 ;CHECK-NO-MERGE-NOT: .globl _MergedGlobals_x
  33
  34 ;CHECK-MERGE:   .type   _MergedGlobals_x,%object
  35 ;CHECK-MERGE:   .globl  _MergedGlobals_x
  36 ;CHECK-MERGE:   .align  2
  37 ;CHECK-MERGE: _MergedGlobals_x:
  38 ;CHECK-MERGE:   .size   _MergedGlobals_x, 12
  39
  40 ;CHECK-MERGE:   .globl  x
  41 ;CHECK-MERGE: x = _MergedGlobals_x
  42 ;CHECK-MERGE:   .globl  y
  43 ;CHECK-MERGE: y = _MergedGlobals_x+4
  44 ;CHECK-MERGE:   .globl  z
  45 ;CHECK-MERGE: z = _MergedGlobals_x+8