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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc -global-isel=1 -mtriple=x86_64-linux-gnu -o - %s | FileCheck %s
declare void @use_addr(ptr)
declare ptr @llvm.stacksave.p0()
declare void @llvm.stackrestore.p0(ptr)
define void @test_scoped_alloca(i64 %n) {
; CHECK-LABEL: test_scoped_alloca:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movq %rsp, %rbp
; CHECK-NEXT: .cfi_def_cfa_register %rbp
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_offset %rbx, -24
; CHECK-NEXT: movq %rsp, %rbx
; CHECK-NEXT: movq %rsp, %rax
; CHECK-NEXT: imulq $1, %rdi, %rcx
; CHECK-NEXT: addq $15, %rcx
; CHECK-NEXT: andq $-16, %rcx
; CHECK-NEXT: subq %rcx, %rax
; CHECK-NEXT: movq %rax, %rsp
; CHECK-NEXT: movq %rax, %rdi
; CHECK-NEXT: callq use_addr
; CHECK-NEXT: movq %rbx, %rsp
; CHECK-NEXT: leaq -8(%rbp), %rsp
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa %rsp, 8
; CHECK-NEXT: retq
%sp = call ptr @llvm.stacksave.p0()
%addr = alloca i8, i64 %n
call void @use_addr(ptr %addr)
call void @llvm.stackrestore.p0(ptr %sp)
ret void
}
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