test/CodeGen/ARM/cse-ldrlit.ll

   1 ; RUN: llc -mtriple=thumbv6m-apple-none-macho -relocation-model=pic -o -  %s | FileCheck %s --check-prefix=CHECK-THUMB-PIC
   2 ; RUN: llc -mtriple=arm-apple-none-macho -relocation-model=pic -o -  %s | FileCheck %s --check-prefix=CHECK-ARM-PIC
   3 ; RUN: llc -mtriple=thumbv6m-apple-none-macho -relocation-model=dynamic-no-pic -o -  %s | FileCheck %s --check-prefix=CHECK-DYNAMIC
   4 ; RUN: llc -mtriple=arm-apple-none-macho -relocation-model=dynamic-no-pic -o -  %s | FileCheck %s --check-prefix=CHECK-DYNAMIC
   5 ; RUN: llc -mtriple=thumbv6m-apple-none-macho -relocation-model=static -o -  %s | FileCheck %s --check-prefix=CHECK-STATIC
   6 ; RUN: llc -mtriple=arm-apple-none-macho -relocation-model=static -o -  %s | FileCheck %s --check-prefix=CHECK-STATIC
   7 @var = global [16 x i32] zeroinitializer
   8
   9 declare void @bar(i32*)
  10
  11 define void @foo() {
  12   %flag = load i32, i32* getelementptr inbounds([16 x i32], [16 x i32]* @var, i32 0, i32 1)
  13   %tst = icmp eq i32 %flag, 0
  14   br i1 %tst, label %true, label %false
  15 true:
  16   tail call void @bar(i32* getelementptr inbounds([16 x i32], [16 x i32]* @var, i32 0, i32 4))
  17   ret void
  18 false:
  19   ret void
  20 }
  21
  22 ; CHECK-THUMB-PIC-LABEL: foo:
  23 ; CHECK-THUMB-PIC: ldr r0, LCPI0_0
  24 ; CHECK-THUMB-PIC: LPC0_0:
  25 ; CHECK-THUMB-PIC-NEXT: add r0, pc
  26 ; CHECK-THUMB-PIC: ldr {{r[1-9][0-9]?}}, [r0, #4]
  27
  28 ; CHECK-THUMB-PIC: LCPI0_0:
  29 ; CHECK-THUMB-PIC-NEXT: .long _var-(LPC0_0+4)
  30 ; CHECK-THUMB-PIC-NOT: LCPI0_1
  31
  32
  33 ; CHECK-ARM-PIC-LABEL: foo:
  34 ; CHECK-ARM-PIC: ldr [[VAR_OFFSET:r[0-9]+]], LCPI0_0
  35 ; CHECK-ARM-PIC: LPC0_0:
  36 ; CHECK-ARM-PIC-NEXT: add r0, pc, [[VAR_OFFSET]]
  37 ; CHECK-ARM-PIC: ldr {{r[0-9]+}}, [r0, #4]
  38
  39 ; CHECK-ARM-PIC: LCPI0_0:
  40 ; CHECK-ARM-PIC-NEXT: .long _var-(LPC0_0+8)
  41 ; CHECK-ARM-PIC-NOT: LCPI0_1
  42
  43
  44 ; CHECK-DYNAMIC-LABEL: foo:
  45 ; CHECK-DYNAMIC: ldr r0, LCPI0_0
  46 ; CHECK-DYNAMIC: ldr {{r[1-9][0-9]?}}, [r0, #4]
  47
  48 ; CHECK-DYNAMIC: LCPI0_0:
  49 ; CHECK-DYNAMIC-NEXT: .long _var
  50 ; CHECK-DYNAMIC-NOT: LCPI0_1
  51
  52
  53 ; CHECK-STATIC-LABEL: foo:
  54 ; CHECK-STATIC: ldr r0, LCPI0_0
  55 ; CHECK-STATIC: ldr {{r[1-9][0-9]?}}, [r0, #4]
  56
  57 ; CHECK-STATIC: LCPI0_0:
  58 ; CHECK-STATIC-NEXT: .long _var{{$}}
  59 ; CHECK-STATIC-NOT: LCPI0_1
  60
  61