test/CodeGen/Thumb/stack_guard_remat.ll

   1 ; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=pic -no-integrated-as | FileCheck %s -check-prefix=PIC
   2 ; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=static -no-integrated-as | FileCheck %s -check-prefix=NO-PIC  -check-prefix=STATIC
   3 ; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=dynamic-no-pic -no-integrated-as | FileCheck %s  -check-prefix=NO-PIC -check-prefix=DYNAMIC-NO-PIC
   4
   5 ;PIC:   foo2
   6 ;PIC:   ldr [[R0:r[0-9]+]], [[LABEL0:LCPI[0-9_]+]]
   7 ;PIC: [[LABEL1:LPC[0-9_]+]]:
   8 ;PIC:   add [[R0]], pc
   9 ;PIC:   ldr [[R1:r[0-9]+]], {{\[}}[[R0]]{{\]}}
  10 ;PIC:   ldr [[R1:r[0-9]+]], {{\[}}[[R1]]{{\]}}
  11
  12 ;PIC:      [[LABEL0]]:
  13 ;PIC-NEXT:   .long L___stack_chk_guard$non_lazy_ptr-([[LABEL1]]+4)
  14
  15 ;NO-PIC:   foo2
  16 ;NO-PIC:   ldr [[R0:r[0-9]+]], [[LABEL0:LCPI[0-9_]+]]
  17 ;NO-PIC-NOT: LPC
  18 ;NO-PIC:   ldr {{r[0-9]+}}, {{\[}}[[R0]]{{\]}}
  19
  20 ;STATIC:      [[LABEL0]]:
  21 ;STATIC-NEXT:   .long ___stack_chk_guard
  22
  23 ;DYNAMIC-NO-PIC:      [[LABEL0]]:
  24 ;DYNAMIC-NO-PIC-NEXT:   .long L___stack_chk_guard$non_lazy_ptr
  25
  26 ; Function Attrs: nounwind ssp
  27 define i32 @test_stack_guard_remat() #0 {
  28   %a1 = alloca [256 x i32], align 4
  29   %1 = bitcast [256 x i32]* %a1 to i8*
  30   call void @llvm.lifetime.start(i64 1024, i8* %1)
  31   %2 = getelementptr inbounds [256 x i32], [256 x i32]* %a1, i32 0, i32 0
  32   call void @foo3(i32* %2) #3
  33   call void asm sideeffect "foo2", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{sp},~{lr}"()
  34   call void @llvm.lifetime.end(i64 1024, i8* %1)
  35   ret i32 0
  36 }
  37
  38 ; Function Attrs: nounwind
  39 declare void @llvm.lifetime.start(i64, i8* nocapture)
  40
  41 declare void @foo3(i32*)
  42
  43 ; Function Attrs: nounwind
  44 declare void @llvm.lifetime.end(i64, i8* nocapture)
  45
  46 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" }