File: frame-11.ll

package info (click to toggle)
llvm-toolchain-3.8 1%3A3.8.1-24
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 379,280 kB
  • ctags: 388,501
  • sloc: cpp: 2,309,705; ansic: 477,070; objc: 100,918; asm: 97,974; python: 95,911; sh: 18,634; makefile: 7,294; perl: 5,584; ml: 5,460; pascal: 4,661; lisp: 2,548; xml: 686; cs: 350; php: 212; csh: 117
file content (25 lines) | stat: -rw-r--r-- 711 bytes parent folder | download | duplicates (22)
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
; Test the stackrestore builtin.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s

declare i8 *@llvm.stacksave()
declare void @llvm.stackrestore(i8 *)

; we should use a frame pointer and tear down the frame based on %r11
; rather than %r15.
define void @f1(i32 %count1, i32 %count2) {
; CHECK-LABEL: f1:
; CHECK: stmg %r11, %r15, 88(%r15)
; CHECK: aghi %r15, -160
; CHECK: lgr %r11, %r15
; CHECK: lgr %r15, %r{{[0-5]}}
; CHECK: lmg %r11, %r15, 248(%r11)
; CHECK: br %r14
  %src = call i8 *@llvm.stacksave()
  %array1 = alloca i8, i32 %count1
  store volatile i8 0, i8 *%array1
  call void @llvm.stackrestore(i8 *%src)
  %array2 = alloca i8, i32 %count2
  store volatile i8 0, i8 *%array2
  ret void
}