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
}
|