diff options
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/frameaddr-01.ll | 28 | ||||
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/ret-addr-01.ll | 15 |
2 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SystemZ/frameaddr-01.ll b/llvm/test/CodeGen/SystemZ/frameaddr-01.ll new file mode 100644 index 00000000000..4dfdf308e8a --- /dev/null +++ b/llvm/test/CodeGen/SystemZ/frameaddr-01.ll @@ -0,0 +1,28 @@ +; 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 diff --git a/llvm/test/CodeGen/SystemZ/ret-addr-01.ll b/llvm/test/CodeGen/SystemZ/ret-addr-01.ll new file mode 100644 index 00000000000..9c3b246af57 --- /dev/null +++ b/llvm/test/CodeGen/SystemZ/ret-addr-01.ll @@ -0,0 +1,15 @@ +; Test support for the llvm.returnaddress intrinsic. +; +; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s + +; The current function's return address is in the link register. +define i8* @rt0() norecurse nounwind readnone { +entry: +; CHECK-LABEL: rt0: +; CHECK: lgr %r2, %r14 +; CHECK: br %r14 + %0 = tail call i8* @llvm.returnaddress(i32 0) + ret i8* %0 +} + +declare i8* @llvm.returnaddress(i32) nounwind readnone |
