1 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 2 3 ; The current function's frame address is the address of 4 ; the optional back chain slot. 5 define i8* @fp0() nounwind { 6 entry: 7 ; CHECK-LABEL: fp0: 8 ; CHECK: la %r2, 0(%r15) 9 ; CHECK: br %r14 10 %0 = tail call i8* @llvm.frameaddress(i32 0) 11 ret i8* %0 12 } 13 14 ; Check that the frame address is correct in a presence 15 ; of a stack frame. 16 define i8* @fp0f() nounwind { 17 entry: 18 ; CHECK-LABEL: fp0f: 19 ; CHECK: aghi %r15, -168 20 ; CHECK: la %r2, 168(%r15) 21 ; CHECK: aghi %r15, 168 22 ; CHECK: br %r14 23 %0 = alloca i64, align 8 24 %1 = tail call i8* @llvm.frameaddress(i32 0) 25 ret i8* %1 26 } 27 28 declare i8* @llvm.frameaddress(i32) nounwind readnone 29
