; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme -verify-machineinstrs < %s | FileCheck %s ; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme -verify-machineinstrs -stop-after=finalize-isel < %s | FileCheck %s --check-prefix=CHECK-CSRMASK ; Test that the PCS attribute is accepted and uses the correct register mask. ; define void @test_sme_calling_convention_x0() nounwind { ; CHECK-LABEL: test_sme_calling_convention_x0: ; CHECK: // %bb.0: ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl __arm_tpidr2_save ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret ; ; CHECK-CSRMASK-LABEL: name: test_sme_calling_convention_x0 ; CHECK-CSRMASK: BL @__arm_tpidr2_save, csr_aarch64_sme_abi_support_routines_preservemost_from_x0 call aarch64_sme_preservemost_from_x0 void @__arm_tpidr2_save() ret void } define i64 @test_sme_calling_convention_x2() nounwind { ; CHECK-LABEL: test_sme_calling_convention_x2: ; CHECK: // %bb.0: ; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill ; CHECK-NEXT: bl __arm_sme_state ; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload ; CHECK-NEXT: ret ; ; CHECK-CSRMASK-LABEL: name: test_sme_calling_convention_x2 ; CHECK-CSRMASK: BL @__arm_sme_state, csr_aarch64_sme_abi_support_routines_preservemost_from_x2 %pstate = call aarch64_sme_preservemost_from_x2 {i64, i64} @__arm_sme_state() %pstate.sm = extractvalue {i64, i64} %pstate, 0 ret i64 %pstate.sm } declare void @__arm_tpidr2_save() declare {i64, i64} @__arm_sme_state()