| ; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=pic -no-integrated-as | FileCheck %s -check-prefix=PIC |
| ; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=static -no-integrated-as | FileCheck %s -check-prefix=NO-PIC -check-prefix=STATIC |
| ; 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 |
| |
| ;PIC: foo2 |
| ;PIC: ldr [[SAVED_GUARD:r[0-9]+]], [[GUARD_STACK_OFFSET:LCPI[0-9_]+]] |
| ;PIC-NEXT: add [[SAVED_GUARD]], sp |
| ;PIC-NEXT: ldr [[SAVED_GUARD]], [[[SAVED_GUARD]]] |
| ;PIC-NEXT: ldr [[ORIGINAL_GUARD:r[0-9]+]], [[ORIGINAL_GUARD_LABEL:LCPI[0-9_]+]] |
| ;PIC-NEXT: [[LABEL1:LPC[0-9_]+]]: |
| ;PIC-NEXT: add [[ORIGINAL_GUARD]], pc |
| ;PIC-NEXT: ldr [[ORIGINAL_GUARD]], [[[ORIGINAL_GUARD]]] |
| ;PIC-NEXT: ldr [[ORIGINAL_GUARD]], [[[ORIGINAL_GUARD]]] |
| ;PIC-NEXT: cmp [[ORIGINAL_GUARD]], [[SAVED_GUARD]] |
| |
| ;PIC: [[GUARD_STACK_OFFSET]]: |
| ;PIC-NEXT: .long 1028 |
| ;PIC: [[ORIGINAL_GUARD_LABEL]]: |
| ;PIC-NEXT: .long L___stack_chk_guard$non_lazy_ptr-([[LABEL1]]+4) |
| |
| ;NO-PIC: foo2 |
| ;NO-PIC: ldr [[SAVED_GUARD:r[0-9]+]], [[GUARD_STACK_OFFSET:LCPI[0-9_]+]] |
| ;NO-PIC-NEXT: add [[SAVED_GUARD]], sp |
| ;NO-PIC-NEXT: ldr [[SAVED_GUARD]], [[[SAVED_GUARD]]] |
| ;NO-PIC-NEXT: ldr [[ORIGINAL_GUARD:r[0-9]+]], [[ORIGINAL_GUARD_LABEL:LCPI[0-9_]+]] |
| ;NO-PIC-NOT: LPC |
| ;NO-PIC-NEXT: ldr [[ORIGINAL_GUARD]], [[[ORIGINAL_GUARD]]] |
| ;DYNAMIC-NO-PIC-NEXT: ldr [[ORIGINAL_GUARD]], [[[ORIGINAL_GUARD]]] |
| ;NO-PIC-NEXT: cmp [[ORIGINAL_GUARD]], [[SAVED_GUARD]] |
| |
| ;STATIC: [[GUARD_STACK_OFFSET]]: |
| ;STATIC-NEXT: .long 1028 |
| ;STATIC: [[ORIGINAL_GUARD_LABEL]]: |
| ;STATIC-NEXT: .long ___stack_chk_guard |
| |
| ;DYNAMIC-NO-PIC: [[GUARD_STACK_OFFSET]]: |
| ;DYNAMIC-NO-PIC-NEXT: .long 1028 |
| ;DYNAMIC-NO-PIC: [[ORIGINAL_GUARD_LABEL]]: |
| ;DYNAMIC-NO-PIC-NEXT: .long L___stack_chk_guard$non_lazy_ptr |
| |
| ; Function Attrs: nounwind ssp |
| define i32 @test_stack_guard_remat() #0 { |
| %a1 = alloca [256 x i32], align 4 |
| %1 = bitcast [256 x i32]* %a1 to i8* |
| call void @llvm.lifetime.start.p0i8(i64 1024, i8* %1) |
| %2 = getelementptr inbounds [256 x i32], [256 x i32]* %a1, i32 0, i32 0 |
| call void @foo3(i32* %2) #3 |
| call void asm sideeffect "foo2", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{sp},~{lr}"() |
| call void @llvm.lifetime.end.p0i8(i64 1024, i8* %1) |
| ret i32 0 |
| } |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) |
| |
| declare void @foo3(i32*) |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) |
| |
| attributes #0 = { nounwind ssp "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |