diff options
Diffstat (limited to 'llvm/test/CodeGen/AArch64/sme-write-vg.ll')
| -rw-r--r-- | llvm/test/CodeGen/AArch64/sme-write-vg.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/sme-write-vg.ll b/llvm/test/CodeGen/AArch64/sme-write-vg.ll new file mode 100644 index 0000000..577606d --- /dev/null +++ b/llvm/test/CodeGen/AArch64/sme-write-vg.ll @@ -0,0 +1,24 @@ +; RUN: llc -mattr=+sme -stop-after=finalize-isel < %s | FileCheck %s + +target triple = "aarch64" + +; Check that we don't define VG for 'smstart za' and 'smstop za' +define void @smstart_za() "aarch64_new_za" nounwind { + ; CHECK-LABEL: name: smstart_za + ; CHECK-NOT: implicit-def {{[^,]*}}$vg + ret void +} + +; Check that we do define VG for 'smstart sm' and 'smstop sm' +define void @smstart_sm() nounwind { + ; CHECK-LABEL: name: smstart_sm + ; CHECK: MSRpstatesvcrImm1 1, 1, + ; CHECK-SAME: implicit-def {{[^,]*}}$vg + ; CHECK: MSRpstatesvcrImm1 1, 0, + ; CHECK-SAME: implicit-def {{[^,]*}}$vg + call void @require_sm() + ret void +} + +declare void @require_sm() "aarch64_pstate_sm_enabled" +declare void @require_za() "aarch64_inout_za" |