reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN

; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=thumbv7-linux-gnueabi -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN

; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -mattr=+strict-align -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-nacl -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN

; RUN: llc < %s -O0 -mattr=+strict-align -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
; RUN: llc < %s -O0  -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -mattr=+strict-align -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=ARM
; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -verify-machineinstrs | FileCheck %s --check-prefix=THUMB
; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=armv7-unknown-unknown -mattr=+strict-align -verify-machineinstrs | FileCheck %s --check-prefix=ARM-STRICT-ALIGN
; RUN: llc < %s -O0 -relocation-model=dynamic-no-pic -mtriple=thumbv7-unknown-unknown -mattr=+strict-align -verify-machineinstrs | FileCheck %s --check-prefix=THUMB-STRICT-ALIGN

; Check unaligned stores
%struct.anon = type <{ float }>

@a = common global %struct.anon* null, align 4

define void @unaligned_store(float %x, float %y) nounwind {
entry:
; ARM: @unaligned_store
; ARM: vmov [[REG:r[0-9]+]], s0
; ARM: str [[REG]], [{{r[0-9]+}}]

; THUMB: @unaligned_store
; THUMB: vmov [[REG:r[0-9]+]], s0
; THUMB: str [[REG]], [{{r[0-9]+}}]

  %add = fadd float %x, %y
  %0 = load %struct.anon*, %struct.anon** @a, align 4
  %x1 = getelementptr inbounds %struct.anon, %struct.anon* %0, i32 0, i32 0
  store float %add, float* %x1, align 1
  ret void
}

; Doublewords require only word-alignment.
; rdar://10528060
%struct.anon.0 = type { double }

@foo_unpacked = common global %struct.anon.0 zeroinitializer, align 4

define void @word_aligned_f64_store(double %a, double %b) nounwind {
entry:
; ARM: @word_aligned_f64_store
; THUMB: @word_aligned_f64_store
  %add = fadd double %a, %b
  store double %add, double* getelementptr inbounds (%struct.anon.0, %struct.anon.0* @foo_unpacked, i32 0, i32 0), align 4
; ARM: vstr d16, [r0]
; THUMB: vstr d16, [r0]
  ret void
}

; Check unaligned loads of floats
%class.TAlignTest = type <{ i16, float }>

define zeroext i1 @unaligned_f32_load(%class.TAlignTest* %this) nounwind align 2 {
entry:
; ARM: @unaligned_f32_load
; THUMB: @unaligned_f32_load
  %0 = alloca %class.TAlignTest*, align 4
  store %class.TAlignTest* %this, %class.TAlignTest** %0, align 4
  %1 = load %class.TAlignTest*, %class.TAlignTest** %0
  %2 = getelementptr inbounds %class.TAlignTest, %class.TAlignTest* %1, i32 0, i32 1
  %3 = load float, float* %2, align 1
  %4 = fcmp une float %3, 0.000000e+00
; ARM: ldr r[[R:[0-9]+]], [r0, #2]
; ARM: vmov s0, r[[R]]
; ARM: vcmp.f32 s0, #0
; THUMB: ldr.w r[[R:[0-9]+]], [r0, #2]
; THUMB: vmov s0, r[[R]]
; THUMB: vcmp.f32 s0, #0
  ret i1 %4
}

define void @unaligned_i16_store(i16 %x, i16* %y) nounwind {
entry:
; ARM-STRICT-ALIGN: @unaligned_i16_store
; ARM-STRICT-ALIGN: strb
; ARM-STRICT-ALIGN: strb

; THUMB-STRICT-ALIGN: @unaligned_i16_store
; THUMB-STRICT-ALIGN: strb
; THUMB-STRICT-ALIGN: strb

  store i16 %x, i16* %y, align 1
  ret void
}

define i16 @unaligned_i16_load(i16* %x) nounwind {
entry:
; ARM-STRICT-ALIGN: @unaligned_i16_load
; ARM-STRICT-ALIGN: ldrb
; ARM-STRICT-ALIGN: ldrb

; THUMB-STRICT-ALIGN: @unaligned_i16_load
; THUMB-STRICT-ALIGN: ldrb
; THUMB-STRICT-ALIGN: ldrb

  %0 = load i16, i16* %x, align 1
  ret i16 %0
}

define void @unaligned_i32_store(i32 %x, i32* %y) nounwind {
entry:
; ARM-STRICT-ALIGN: @unaligned_i32_store
; ARM-STRICT-ALIGN: strb
; ARM-STRICT-ALIGN: strb
; ARM-STRICT-ALIGN: strb
; ARM-STRICT-ALIGN: strb

; THUMB-STRICT-ALIGN: @unaligned_i32_store
; THUMB-STRICT-ALIGN: strb
; THUMB-STRICT-ALIGN: strb
; THUMB-STRICT-ALIGN: strb
; THUMB-STRICT-ALIGN: strb

  store i32 %x, i32* %y, align 1
  ret void
}

define i32 @unaligned_i32_load(i32* %x) nounwind {
entry:
; ARM-STRICT-ALIGN: @unaligned_i32_load
; ARM-STRICT-ALIGN: ldrb
; ARM-STRICT-ALIGN: ldrb
; ARM-STRICT-ALIGN: ldrb
; ARM-STRICT-ALIGN: ldrb

; THUMB-STRICT-ALIGN: @unaligned_i32_load
; THUMB-STRICT-ALIGN: ldrb
; THUMB-STRICT-ALIGN: ldrb
; THUMB-STRICT-ALIGN: ldrb
; THUMB-STRICT-ALIGN: ldrb

  %0 = load i32, i32* %x, align 1
  ret i32 %0
}