| ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s |
| |
| ; Test lowering of @llvm.frameaddress with packed-stack. |
| |
| ; With back chain |
| attributes #0 = { nounwind "packed-stack" "backchain" "use-soft-float"="true" } |
| define i8* @fp0() #0 { |
| entry: |
| ; CHECK-LABEL: fp0: |
| ; CHECK: la %r2, 152(%r15) |
| ; CHECK-NEXT: br %r14 |
| %0 = tail call i8* @llvm.frameaddress(i32 0) |
| ret i8* %0 |
| } |
| |
| define i8* @fp0f() #0 { |
| entry: |
| ; CHECK-LABEL: fp0f: |
| ; CHECK: lgr %r1, %r15 |
| ; CHECK-NEXT: aghi %r15, -16 |
| ; CHECK-NEXT: stg %r1, 152(%r15) |
| ; CHECK-NEXT: la %r2, 168(%r15) |
| ; CHECK-NEXT: aghi %r15, 16 |
| ; CHECK-NEXT: br %r14 |
| %0 = alloca i64, align 8 |
| %1 = tail call i8* @llvm.frameaddress(i32 0) |
| ret i8* %1 |
| } |
| |
| ; Without back chain |
| |
| attributes #1 = { nounwind "packed-stack" } |
| define i8* @fp1() #1 { |
| entry: |
| ; CHECK-LABEL: fp1: |
| ; CHECK: lghi %r2, 0 |
| ; CHECK-NEXT: br %r14 |
| %0 = tail call i8* @llvm.frameaddress(i32 0) |
| ret i8* %0 |
| } |
| |
| define i8* @fp1f() #1 { |
| entry: |
| ; CHECK-LABEL: fp1f: |
| ; CHECK: aghi %r15, -8 |
| ; CHECK-NEXT: lghi %r2, 0 |
| ; CHECK-NEXT: aghi %r15, 8 |
| ; CHECK-NEXT: 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 |
