test/CodeGen/ARM/stack_guard_remat.ll

   1 ; RUN: llc < %s -mtriple=arm-apple-ios -relocation-model=pic -no-integrated-as | FileCheck %s -check-prefix=PIC
   2 ; RUN: llc < %s -mtriple=arm-apple-ios -relocation-model=static -no-integrated-as | FileCheck %s -check-prefix=NO-PIC -check-prefix=STATIC
   3 ; RUN: llc < %s -mtriple=arm-apple-ios -relocation-model=dynamic-no-pic -no-integrated-as | FileCheck %s  -check-prefix=NO-PIC -check-prefix=DYNAMIC-NO-PIC
   4 ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=cortex-a8 -relocation-model=pic -no-integrated-as | FileCheck %s -check-prefix=PIC-V7
   5 ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=cortex-a8 -relocation-model=static -no-integrated-as | FileCheck %s -check-prefix=STATIC-V7
   6 ; RUN: llc < %s -mtriple=armv7-apple-ios -mcpu=cortex-a8 -relocation-model=dynamic-no-pic -no-integrated-as | FileCheck %s -check-prefix=DYNAMIC-NO-PIC-V7
   7
   8 ;PIC:   foo2
   9 ;PIC:   ldr [[R0:r[0-9]+]], [[LABEL0:LCPI[0-9_]+]]
  10 ;PIC: [[LABEL1:LPC0_1]]:
  11 ;PIC:   add [[R1:r[0-9]+]], pc, [[R0]]
  12 ;PIC:   ldr [[R2:r[0-9]+]], {{\[}}[[R1]]{{\]}}
  13 ;PIC:   ldr {{r[0-9]+}}, {{\[}}[[R2]]{{\]}}
  14
  15 ;PIC:      [[LABEL0]]:
  16 ;PIC-NEXT:   .long L___stack_chk_guard$non_lazy_ptr-([[LABEL1]]+8)
  17
  18 ;NO-PIC: foo2
  19 ;NO-PIC: ldr [[R0:r[0-9]+]], [[LABEL0:LCPI[0-9_]+]]
  20 ;NO-PIC-NOT: LPC
  21 ;NO-PIC: ldr {{r[0-9]+}}, {{\[}}[[R0]]{{\]}}
  22
  23 ;STATIC:      [[LABEL0]]:
  24 ;STATIC-NEXT:   .long ___stack_chk_guard
  25
  26 ;DYNAMIC-NO-PIC:      [[LABEL0]]:
  27 ;DYNAMIC-NO-PIC-NEXT:   .long L___stack_chk_guard$non_lazy_ptr
  28
  29 ;PIC-V7:   movw [[R0:r[0-9]+]], :lower16:(L___stack_chk_guard$non_lazy_ptr-([[LABEL0:LPC[0-9_]+]]+8))
  30 ;PIC-V7:   movt [[R0]], :upper16:(L___stack_chk_guard$non_lazy_ptr-([[LABEL0]]+8))
  31 ;PIC-V7: [[LABEL0]]:
  32 ;PIC-V7:   ldr [[R0]], {{\[}}pc, [[R0]]{{\]}}
  33 ;PIC-V7:   ldr [[R0]], {{\[}}[[R0]]{{\]}}
  34
  35 ;PIC-V7: L___stack_chk_guard$non_lazy_ptr:
  36 ;PIC-V7:   .indirect_symbol        ___stack_chk_guard
  37
  38 ;STATIC-V7: movw [[R0:r[0-9]+]], :lower16:___stack_chk_guard
  39 ;STATIC-V7: movt [[R0]], :upper16:___stack_chk_guard
  40 ;STATIC-V7: ldr  [[R0]], {{\[}}[[R0]]{{\]}}
  41
  42 ;DYNAMIC-NO-PIC-V7: movw [[R0:r[0-9]+]], :lower16:L___stack_chk_guard$non_lazy_ptr
  43 ;DYNAMIC-NO-PIC-V7: movt [[R0]], :upper16:L___stack_chk_guard$non_lazy_ptr
  44 ;DYNAMIC-NO-PIC-V7: ldr  [[R0]], {{\[}}[[R0]]{{\]}}
  45 ;DYNAMIC-NO-PIC-V7: ldr  [[R0]], {{\[}}[[R0]]{{\]}}
  46
  47 ;DYNAMIC-NO-PIC-V7: L___stack_chk_guard$non_lazy_ptr:
  48 ;DYNAMIC-NO-PIC-V7:   .indirect_symbol        ___stack_chk_guard
  49
  50 ; Function Attrs: nounwind ssp
  51 define i32 @test_stack_guard_remat() #0 {
  52   %a1 = alloca [256 x i32], align 4
  53   %1 = bitcast [256 x i32]* %a1 to i8*
  54   call void @llvm.lifetime.start(i64 1024, i8* %1)
  55   %2 = getelementptr inbounds [256 x i32], [256 x i32]* %a1, i32 0, i32 0
  56   call void @foo3(i32* %2) #3
  57   call void asm sideeffect "foo2", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{sp},~{lr}"()
  58   call void @llvm.lifetime.end(i64 1024, i8* %1)
  59   ret i32 0
  60 }
  61
  62 ; Function Attrs: nounwind
  63 declare void @llvm.lifetime.start(i64, i8* nocapture)
  64
  65 declare void @foo3(i32*)
  66
  67 ; Function Attrs: nounwind
  68 declare void @llvm.lifetime.end(i64, i8* nocapture)
  69
  70 attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }