| ; 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 |
| } |
