| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; The current function's frame address is the address of |
| ; the optional back chain slot. |
| define i8* @fp0() nounwind { |
| entry: |
| ; CHECK-LABEL: fp0: |
| ; CHECK: la %r2, 0(%r15) |
| ; CHECK: br %r14 |
| %0 = tail call i8* @llvm.frameaddress(i32 0) |
| ret i8* %0 |
| } |
| |
| ; Check that the frame address is correct in a presence |
| ; of a stack frame. |
| define i8* @fp0f() nounwind { |
| entry: |
| ; CHECK-LABEL: fp0f: |
| ; CHECK: aghi %r15, -168 |
| ; CHECK: la %r2, 168(%r15) |
| ; CHECK: aghi %r15, 168 |
| ; CHECK: br %r14 |
| %0 = alloca i64, align 8 |
| %1 = tail call i8* @llvm.frameaddress(i32 0) |
| ret i8* %1 |
| } |
| |
| declare i8* @llvm.frameaddress(i32) nounwind readnone |
