Home | History | Annotate | Download | only in ARM
      1 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios | FileCheck %s --check-prefix=ARM
      2 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi | FileCheck %s --check-prefix=ARM
      3 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios | FileCheck %s --check-prefix=THUMB
      4 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -mattr=+long-calls | FileCheck %s --check-prefix=ARM-LONG --check-prefix=ARM-LONG-MACHO
      5 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -mattr=+long-calls | FileCheck %s --check-prefix=ARM-LONG --check-prefix=ARM-LONG-ELF
      6 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -mattr=+long-calls | FileCheck %s --check-prefix=THUMB-LONG
      7 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-apple-ios -mattr=-vfp2 | FileCheck %s --check-prefix=ARM-NOVFP
      8 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=armv7-linux-gnueabi -mattr=-vfp2 | FileCheck %s --check-prefix=ARM-NOVFP
      9 ; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort=1 -relocation-model=dynamic-no-pic -mtriple=thumbv7-apple-ios -mattr=-vfp2 | FileCheck %s --check-prefix=THUMB-NOVFP
     10 
     11 ; Note that some of these tests assume that relocations are either
     12 ; movw/movt or constant pool loads. Different platforms will select
     13 ; different approaches.
     14 
     15 define i32 @t0(i1 zeroext %a) nounwind {
     16   %1 = zext i1 %a to i32
     17   ret i32 %1
     18 }
     19 
     20 define i32 @t1(i8 signext %a) nounwind {
     21   %1 = sext i8 %a to i32
     22   ret i32 %1
     23 }
     24 
     25 define i32 @t2(i8 zeroext %a) nounwind {
     26   %1 = zext i8 %a to i32
     27   ret i32 %1
     28 }
     29 
     30 define i32 @t3(i16 signext %a) nounwind {
     31   %1 = sext i16 %a to i32
     32   ret i32 %1
     33 }
     34 
     35 define i32 @t4(i16 zeroext %a) nounwind {
     36   %1 = zext i16 %a to i32
     37   ret i32 %1
     38 }
     39 
     40 define void @foo(i8 %a, i16 %b) nounwind {
     41 ; ARM: foo
     42 ; THUMB: foo
     43 ;; Materialize i1 1
     44 ; ARM: movw r2, #1
     45 ;; zero-ext
     46 ; ARM: and r2, r2, #1
     47 ; THUMB: and r2, r2, #1
     48   %1 = call i32 @t0(i1 zeroext 1)
     49 ; ARM: sxtb	r2, r1
     50 ; ARM: mov r0, r2
     51 ; THUMB: sxtb	r2, r1
     52 ; THUMB: mov r0, r2
     53   %2 = call i32 @t1(i8 signext %a)
     54 ; ARM: and	r2, r1, #255
     55 ; ARM: mov r0, r2
     56 ; THUMB: and	r2, r1, #255
     57 ; THUMB: mov r0, r2
     58   %3 = call i32 @t2(i8 zeroext %a)
     59 ; ARM: sxth	r2, r1
     60 ; ARM: mov r0, r2
     61 ; THUMB: sxth	r2, r1
     62 ; THUMB: mov r0, r2
     63   %4 = call i32 @t3(i16 signext %b)
     64 ; ARM: uxth	r2, r1
     65 ; ARM: mov r0, r2
     66 ; THUMB: uxth	r2, r1
     67 ; THUMB: mov r0, r2
     68   %5 = call i32 @t4(i16 zeroext %b)
     69 
     70 ;; A few test to check materialization
     71 ;; Note: i1 1 was materialized with t1 call
     72 ; ARM: movw r1, #255
     73 %6 = call i32 @t2(i8 zeroext 255)
     74 ; ARM: movw r1, #65535
     75 ; THUMB: movw r1, #65535
     76 %7 = call i32 @t4(i16 zeroext 65535)
     77   ret void
     78 }
     79 
     80 define void @foo2() nounwind {
     81   %1 = call signext i16 @t5()
     82   %2 = call zeroext i16 @t6()
     83   %3 = call signext i8 @t7()
     84   %4 = call zeroext i8 @t8()
     85   %5 = call zeroext i1 @t9()
     86   ret void
     87 }
     88 
     89 declare signext i16 @t5();
     90 declare zeroext i16 @t6();
     91 declare signext i8 @t7();
     92 declare zeroext i8 @t8();
     93 declare zeroext i1 @t9();
     94 
     95 define i32 @t10() {
     96 entry:
     97 ; ARM: @t10
     98 ; ARM: movw [[R0:l?r[0-9]*]], #0
     99 ; ARM: movw [[R1:l?r[0-9]*]], #248
    100 ; ARM: movw [[R2:l?r[0-9]*]], #187
    101 ; ARM: movw [[R3:l?r[0-9]*]], #28
    102 ; ARM: movw [[R4:l?r[0-9]*]], #40
    103 ; ARM: movw [[R5:l?r[0-9]*]], #186
    104 ; ARM: and [[R0]], [[R0]], #255
    105 ; ARM: and [[R1]], [[R1]], #255
    106 ; ARM: and [[R2]], [[R2]], #255
    107 ; ARM: and [[R3]], [[R3]], #255
    108 ; ARM: and [[R4]], [[R4]], #255
    109 ; ARM: str [[R4]], [sp]
    110 ; ARM: and [[R4]], [[R5]], #255
    111 ; ARM: str [[R4]], [sp, #4]
    112 ; ARM: bl {{_?}}bar
    113 ; ARM-LONG: @t10
    114 
    115 ; ARM-LONG-MACHO: {{(movw)|(ldr)}} [[R:l?r[0-9]*]], {{(:lower16:L_bar\$non_lazy_ptr)|(.LCPI)}}
    116 ; ARM-LONG-MACHO: {{(movt [[R]], :upper16:L_bar\$non_lazy_ptr)?}}
    117 ; ARM-LONG-MACHO: ldr [[R]], {{\[}}[[R]]{{\]}}
    118 
    119 ; ARM-LONG-ELF: movw [[R:l?r[0-9]*]], :lower16:bar
    120 ; ARM-LONG-ELF: {{(movt [[R]], :upper16:L_bar\$non_lazy_ptr)?}}
    121 
    122 ; ARM-LONG: blx [[R]]
    123 ; THUMB: @t10
    124 ; THUMB: movs [[R0:l?r[0-9]*]], #0
    125 ; THUMB: movs [[R1:l?r[0-9]*]], #248
    126 ; THUMB: movs [[R2:l?r[0-9]*]], #187
    127 ; THUMB: movs [[R3:l?r[0-9]*]], #28
    128 ; THUMB: movw [[R4:l?r[0-9]*]], #40
    129 ; THUMB: movw [[R5:l?r[0-9]*]], #186
    130 ; THUMB: and [[R0]], [[R0]], #255
    131 ; THUMB: and [[R1]], [[R1]], #255
    132 ; THUMB: and [[R2]], [[R2]], #255
    133 ; THUMB: and [[R3]], [[R3]], #255
    134 ; THUMB: and [[R4]], [[R4]], #255
    135 ; THUMB: str.w [[R4]], [sp]
    136 ; THUMB: and [[R4]], [[R5]], #255
    137 ; THUMB: str.w [[R4]], [sp, #4]
    138 ; THUMB: bl {{_?}}bar
    139 ; THUMB-LONG: @t10
    140 ; THUMB-LONG: {{(movw)|(ldr.n)}} [[R:l?r[0-9]*]], {{(:lower16:L_bar\$non_lazy_ptr)|(.LCPI)}}
    141 ; THUMB-LONG: {{(movt [[R]], :upper16:L_bar\$non_lazy_ptr)?}}
    142 ; THUMB-LONG: ldr{{(.w)?}} [[R]], {{\[}}[[R]]{{\]}}
    143 ; THUMB-LONG: blx [[R]]
    144   %call = call i32 @bar(i8 zeroext 0, i8 zeroext -8, i8 zeroext -69, i8 zeroext 28, i8 zeroext 40, i8 zeroext -70)
    145   ret i32 0
    146 }
    147 
    148 declare i32 @bar(i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext, i8 zeroext)
    149 
    150 define i32 @bar0(i32 %i) nounwind {
    151   ret i32 0
    152 }
    153 
    154 define void @foo3() uwtable {
    155 ; ARM: movw    r0, #0
    156 ; ARM: {{(movw r1, :lower16:_?bar0)|(ldr r1, .LCPI)}}
    157 ; ARM: {{(movt r1, :upper16:_?bar0)|(ldr r1, \[r1\])}}
    158 ; ARM: blx     r1
    159 ; THUMB: movs    r0, #0
    160 ; THUMB: {{(movw r1, :lower16:_?bar0)|(ldr.n r1, .LCPI)}}
    161 ; THUMB: {{(movt r1, :upper16:_?bar0)|(ldr r1, \[r1\])}}
    162 ; THUMB: blx     r1
    163   %fptr = alloca i32 (i32)*, align 8
    164   store i32 (i32)* @bar0, i32 (i32)** %fptr, align 8
    165   %1 = load i32 (i32)*, i32 (i32)** %fptr, align 8
    166   %call = call i32 %1(i32 0)
    167   ret void
    168 }
    169 
    170 define i32 @LibCall(i32 %a, i32 %b) {
    171 entry:
    172 ; ARM: LibCall
    173 ; ARM: bl {{___udivsi3|__aeabi_uidiv}}
    174 ; ARM-LONG: LibCall
    175 
    176 ; ARM-LONG-MACHO: {{(movw r2, :lower16:L___udivsi3\$non_lazy_ptr)|(ldr r2, .LCPI)}}
    177 ; ARM-LONG-MACHO: {{(movt r2, :upper16:L___udivsi3\$non_lazy_ptr)?}}
    178 ; ARM-LONG-MACHO: ldr r2, [r2]
    179 
    180 ; ARM-LONG-ELF: movw r2, :lower16:__aeabi_uidiv
    181 ; ARM-LONG-ELF: movt r2, :upper16:__aeabi_uidiv
    182 
    183 ; ARM-LONG: blx r2
    184 ; THUMB: LibCall
    185 ; THUMB: bl {{___udivsi3|__aeabi_uidiv}}
    186 ; THUMB-LONG: LibCall
    187 ; THUMB-LONG: {{(movw r2, :lower16:L___udivsi3\$non_lazy_ptr)|(ldr.n r2, .LCPI)}}
    188 ; THUMB-LONG: {{(movt r2, :upper16:L___udivsi3\$non_lazy_ptr)?}}
    189 ; THUMB-LONG: ldr r2, [r2]
    190 ; THUMB-LONG: blx r2
    191         %tmp1 = udiv i32 %a, %b         ; <i32> [#uses=1]
    192         ret i32 %tmp1
    193 }
    194 
    195 ; Test fastcc
    196 
    197 define fastcc void @fast_callee(float %i) ssp {
    198 entry:
    199 ; ARM: fast_callee
    200 ; ARM: vmov r0, s0
    201 ; THUMB: fast_callee
    202 ; THUMB: vmov r0, s0
    203 ; ARM-NOVFP: fast_callee
    204 ; ARM-NOVFP-NOT: s0
    205 ; THUMB-NOVFP: fast_callee
    206 ; THUMB-NOVFP-NOT: s0
    207   call void @print(float %i)
    208   ret void
    209 }
    210 
    211 define void @fast_caller() ssp {
    212 entry:
    213 ; ARM: fast_caller
    214 ; ARM: vldr s0,
    215 ; THUMB: fast_caller
    216 ; THUMB: vldr s0,
    217 ; ARM-NOVFP: fast_caller
    218 ; ARM-NOVFP: movw r0, #13107
    219 ; ARM-NOVFP: movt r0, #16611
    220 ; THUMB-NOVFP: fast_caller
    221 ; THUMB-NOVFP: movw r0, #13107
    222 ; THUMB-NOVFP: movt r0, #16611
    223   call fastcc void @fast_callee(float 0x401C666660000000)
    224   ret void
    225 }
    226 
    227 define void @no_fast_callee(float %i) ssp {
    228 entry:
    229 ; ARM: no_fast_callee
    230 ; ARM: vmov s0, r0
    231 ; THUMB: no_fast_callee
    232 ; THUMB: vmov s0, r0
    233 ; ARM-NOVFP: no_fast_callee
    234 ; ARM-NOVFP-NOT: s0
    235 ; THUMB-NOVFP: no_fast_callee
    236 ; THUMB-NOVFP-NOT: s0
    237   call void @print(float %i)
    238   ret void
    239 }
    240 
    241 define void @no_fast_caller() ssp {
    242 entry:
    243 ; ARM: no_fast_caller
    244 ; ARM: vmov r0, s0
    245 ; THUMB: no_fast_caller
    246 ; THUMB: vmov r0, s0
    247 ; ARM-NOVFP: no_fast_caller
    248 ; ARM-NOVFP: movw r0, #13107
    249 ; ARM-NOVFP: movt r0, #16611
    250 ; THUMB-NOVFP: no_fast_caller
    251 ; THUMB-NOVFP: movw r0, #13107
    252 ; THUMB-NOVFP: movt r0, #16611
    253   call void @no_fast_callee(float 0x401C666660000000)
    254   ret void
    255 }
    256 
    257 declare void @bar2(i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6)
    258 
    259 define void @call_undef_args() {
    260 ; ARM-LABEL: call_undef_args
    261 ; ARM:       movw  r0, #1
    262 ; ARM-NEXT:  movw  r1, #2
    263 ; ARM-NEXT:  movw  r2, #3
    264 ; ARM-NEXT:  movw  r3, #4
    265 ; ARM-NOT:   str {{r[0-9]+}}, [sp]
    266 ; ARM:       movw  [[REG:l?r[0-9]*]], #6
    267 ; ARM-NEXT:  str [[REG]], [sp, #4]
    268   call void @bar2(i32 1, i32 2, i32 3, i32 4, i32 undef, i32 6)
    269   ret void
    270 }
    271 
    272 declare void @print(float)
    273