test/CodeGen/X86/huge-stack.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --no_x86_scrub_sp --version 4
; RUN: llc -O0 -mtriple=x86_64 -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK
%large = type [4294967295 x i8]

define void @foo() unnamed_addr #0 {
; CHECK-LABEL: foo:
; CHECK:       # %bb.0:
; CHECK-NEXT:    movabsq $8589934472, %rax # imm = 0x1FFFFFF88
; CHECK-NEXT:    subq %rax, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 8589934480
; CHECK-NEXT:    movabsq $4294967177, %rax # imm = 0xFFFFFF89
; CHECK-NEXT:    movb $42, (%rsp,%rax)
; CHECK-NEXT:    movb $43, -118(%rsp)
; CHECK-NEXT:    movabsq $8589934472, %rax # imm = 0x1FFFFFF88
; CHECK-NEXT:    addq %rax, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    retq
  %large1 = alloca %large, align 1
  %large2 = alloca %large, align 1
  %ptrLarge1 = getelementptr inbounds %large, ptr %large1, i64 0, i64 0
  store i8 42, ptr %ptrLarge1, align 1
  %ptrLarge2 = getelementptr inbounds %large, ptr %large2, i64 0, i64 0
  store i8 43, ptr %ptrLarge2, align 1
  ret void
}

declare ptr @baz(ptr, ptr, ptr, ptr)

define ptr @scavenge_spill() unnamed_addr #0 {
; CHECK-LABEL: scavenge_spill:
; CHECK:       # %bb.0:
; CHECK-NEXT:    movabsq $25769803816, %rax # imm = 0x600000028
; CHECK-NEXT:    subq %rax, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 25769803824
; CHECK-NEXT:    movabsq $21474836521, %rax # imm = 0x500000029
; CHECK-NEXT:    leaq (%rsp,%rax), %rdi
; CHECK-NEXT:    movabsq $17179869226, %rax # imm = 0x40000002A
; CHECK-NEXT:    leaq (%rsp,%rax), %rsi
; CHECK-NEXT:    movq %rsi, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT:    movabsq $12884901931, %rax # imm = 0x30000002B
; CHECK-NEXT:    leaq (%rsp,%rax), %rdx
; CHECK-NEXT:    movq %rdx, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT:    movabsq $8589934636, %rax # imm = 0x20000002C
; CHECK-NEXT:    leaq (%rsp,%rax), %rcx
; CHECK-NEXT:    movq %rcx, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT:    callq baz@PLT
; CHECK-NEXT:    movq {{[-0-9]+}}(%r{{[sb]}}p), %rsi # 8-byte Reload
; CHECK-NEXT:    movq {{[-0-9]+}}(%r{{[sb]}}p), %rdx # 8-byte Reload
; CHECK-NEXT:    movq {{[-0-9]+}}(%r{{[sb]}}p), %rcx # 8-byte Reload
; CHECK-NEXT:    movq %rax, {{[-0-9]+}}(%r{{[sb]}}p) # 8-byte Spill
; CHECK-NEXT:    leaq 46(%rsp), %rdi
; CHECK-NEXT:    callq baz@PLT
; CHECK-NEXT:    # kill: def $rcx killed $rax
; CHECK-NEXT:    movq {{[-0-9]+}}(%r{{[sb]}}p), %rax # 8-byte Reload
; CHECK-NEXT:    movabsq $25769803816, %rcx # imm = 0x600000028
; CHECK-NEXT:    addq %rcx, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    retq
  %large1 = alloca %large, align 1
  %ptrLarge1 = getelementptr inbounds %large, ptr %large1, i64 0, i64 0
  %large2 = alloca %large, align 1
  %ptrLarge2 = getelementptr inbounds %large, ptr %large2, i64 0, i64 0
  %large3 = alloca %large, align 1
  %ptrLarge3 = getelementptr inbounds %large, ptr %large3, i64 0, i64 0
  %large4 = alloca %large, align 1
  %ptrLarge4 = getelementptr inbounds %large, ptr %large4, i64 0, i64 0
  %large5 = alloca %large, align 1
  %ptrLarge5 = getelementptr inbounds %large, ptr %large5, i64 0, i64 0
  %ret1 = call ptr @baz(ptr %ptrLarge1, ptr %ptrLarge2, ptr %ptrLarge3, ptr %ptrLarge4)
  %large6 = alloca %large, align 1
  %ptrLarge6 = getelementptr inbounds %large, ptr %large6, i64 0, i64 0
  %ret2 = call ptr @baz(ptr %ptrLarge6, ptr %ptrLarge2, ptr %ptrLarge3, ptr %ptrLarge4)
  ret ptr %ret1
}