test/CodeGen/AArch64/literal_pools.ll

   1 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
   2 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -code-model=large | FileCheck --check-prefix=CHECK-LARGE %s
   3 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP %s
   4 ; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -code-model=large -mattr=-fp-armv8 | FileCheck --check-prefix=CHECK-NOFP-LARGE %s
   5
   6 @var32 = global i32 0
   7 @var64 = global i64 0
   8
   9 define void @foo() {
  10 ; CHECK-LABEL: foo:
  11     %val32 = load i32* @var32
  12     %val64 = load i64* @var64
  13
  14     %val32_lit32 = and i32 %val32, 123456785
  15     store volatile i32 %val32_lit32, i32* @var32
  16 ; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
  17 ; CHECK: ldr {{w[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
  18
  19 ; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g3:[[CURLIT:.LCPI0_[0-9]+]]
  20 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
  21 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
  22 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g0_nc:[[CURLIT]]
  23 ; CHECK-LARGE: ldr {{w[0-9]+}}, [x[[LITADDR]]]
  24
  25     %val64_lit32 = and i64 %val64, 305402420
  26     store volatile i64 %val64_lit32, i64* @var64
  27 ; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
  28 ; CHECK: ldr {{w[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
  29
  30 ; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g3:[[CURLIT:.LCPI0_[0-9]+]]
  31 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
  32 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
  33 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g0_nc:[[CURLIT]]
  34 ; CHECK-LARGE: ldr {{w[0-9]+}}, [x[[LITADDR]]]
  35
  36     %val64_lit32signed = and i64 %val64, -12345678
  37     store volatile i64 %val64_lit32signed, i64* @var64
  38 ; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
  39 ; CHECK: ldrsw {{x[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
  40
  41 ; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g3:[[CURLIT:.LCPI0_[0-9]+]]
  42 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
  43 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
  44 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g0_nc:[[CURLIT]]
  45 ; CHECK-LARGE: ldrsw {{x[0-9]+}}, [x[[LITADDR]]]
  46
  47     %val64_lit64 = and i64 %val64, 1234567898765432
  48     store volatile i64 %val64_lit64, i64* @var64
  49 ; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI0_[0-9]+]]
  50 ; CHECK: ldr {{x[0-9]+}}, [x[[LITBASE]], #:lo12:[[CURLIT]]]
  51
  52 ; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g3:[[CURLIT:.LCPI0_[0-9]+]]
  53 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
  54 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
  55 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g0_nc:[[CURLIT]]
  56 ; CHECK-LARGE: ldr {{x[0-9]+}}, [x[[LITADDR]]]
  57
  58     ret void
  59 }
  60
  61 @varfloat = global float 0.0
  62 @vardouble = global double 0.0
  63
  64 define void @floating_lits() {
  65 ; CHECK-LABEL: floating_lits:
  66
  67   %floatval = load float* @varfloat
  68   %newfloat = fadd float %floatval, 128.0
  69 ; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI1_[0-9]+]]
  70 ; CHECK: ldr [[LIT128:s[0-9]+]], [x[[LITBASE]], #:lo12:[[CURLIT]]]
  71 ; CHECK-NOFP-NOT: ldr {{s[0-9]+}},
  72
  73 ; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g3:[[CURLIT:.LCPI1_[0-9]+]]
  74 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
  75 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
  76 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g0_nc:[[CURLIT]]
  77 ; CHECK-LARGE: ldr {{s[0-9]+}}, [x[[LITADDR]]]
  78 ; CHECK-LARGE: fadd
  79 ; CHECK-NOFP-LARGE-NOT: ldr {{s[0-9]+}},
  80 ; CHECK-NOFP-LARGE-NOT: fadd
  81
  82   store float %newfloat, float* @varfloat
  83
  84   %doubleval = load double* @vardouble
  85   %newdouble = fadd double %doubleval, 129.0
  86 ; CHECK: adrp x[[LITBASE:[0-9]+]], [[CURLIT:.LCPI1_[0-9]+]]
  87 ; CHECK: ldr [[LIT129:d[0-9]+]], [x[[LITBASE]], #:lo12:[[CURLIT]]]
  88 ; CHECK: fadd {{s[0-9]+}}, {{s[0-9]+}}, [[LIT128]]
  89 ; CHECK: fadd {{d[0-9]+}}, {{d[0-9]+}}, [[LIT129]]
  90 ; CHECK-NOFP-NOT: ldr {{d[0-9]+}},
  91 ; CHECK-NOFP-NOT: fadd
  92
  93 ; CHECK-LARGE: movz x[[LITADDR:[0-9]+]], #:abs_g3:[[CURLIT:.LCPI1_[0-9]+]]
  94 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g2_nc:[[CURLIT]]
  95 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g1_nc:[[CURLIT]]
  96 ; CHECK-LARGE: movk x[[LITADDR]], #:abs_g0_nc:[[CURLIT]]
  97 ; CHECK-LARGE: ldr {{d[0-9]+}}, [x[[LITADDR]]]
  98 ; CHECK-NOFP-LARGE-NOT: ldr {{d[0-9]+}},
  99
 100   store double %newdouble, double* @vardouble
 101
 102   ret void
 103 }