File: x86-64-stack-and-frame-ptr.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (34 lines) | stat: -rw-r--r-- 883 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
; RUN: llc -verify-machineinstrs -mtriple=x86_64-pc-linux < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -mtriple=x86_64-pc-linux-gnux32 < %s | FileCheck -check-prefix=X32ABI %s
; RUN: llc -verify-machineinstrs -mtriple=x86_64-pc-nacl < %s | FileCheck -check-prefix=NACL %s

; x32 uses %esp, %ebp as stack and frame pointers

; CHECK-LABEL: foo
; CHECK: pushq %rbp
; CHECK: movq %rsp, %rbp
; CHECK: movq %rdi, -8(%rbp)
; CHECK: popq %rbp
; X32ABI-LABEL: foo
; X32ABI: pushq %rbp
; X32ABI: movl %esp, %ebp
; X32ABI: movl %edi, -4(%ebp)
; X32ABI: popq %rbp
; NACL-LABEL: foo
; NACL: pushq %rbp
; NACL: movq %rsp, %rbp
; NACL: movl %edi, -4(%rbp)
; NACL: popq %rbp


define void @foo(i32* %a) #0 {
entry:
  %a.addr = alloca i32*, align 4
  %b = alloca i32*, align 4
  store i32* %a, i32** %a.addr, align 4
  ret void
}

attributes #0 = { nounwind uwtable "frame-pointer"="all"}