1; RUN: llc -global-isel -mtriple=aarch64-unknown-unknown -stop-after=irtranslator -verify-machineinstrs %s -o - | FileCheck %s 2; RUN: llc -global-isel -mtriple=aarch64-unknown-unknown -stop-after=irtranslator -verify-machineinstrs -opaque-pointers %s -o - | FileCheck %s 3 4; The byval object should not be immutable, but the non-byval stack 5; passed argument should be. 6 7; CHECK-LABEL: name: stack_passed_i64 8; CHECK: fixedStack: 9; CHECK: - { id: 0, type: default, offset: 8, size: 8, alignment: 8, stack-id: default, 10; CHECK-NEXT: isImmutable: false, isAliased: false, 11; CHECK: - { id: 1, type: default, offset: 0, size: 8, alignment: 16, stack-id: default, 12; CHECK-NEXT: isImmutable: true, isAliased: false, 13define void @stack_passed_i64(i64 %arg, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %arg5, i64 %arg6, 14 i64 %arg7, i64 %arg8, i64* byval(i64) %arg9) { 15 ; CHECK: bb.1 (%ir-block.0): 16 ; CHECK: [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.1 17 ; CHECK: [[LOAD:%[0-9]+]]:_(s64) = G_LOAD [[FRAME_INDEX]](p0) :: (invariant load (s64) from %fixed-stack.1, align 16) 18 ; CHECK: [[FRAME_INDEX1:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.0 19 ; CHECK: [[COPY8:%[0-9]+]]:_(p0) = COPY [[FRAME_INDEX1]](p0) 20 ; CHECK: [[LOAD1:%[0-9]+]]:_(s64) = G_LOAD [[COPY8]](p0) :: (dereferenceable load (s64) from %ir.arg9) 21 ; CHECK: [[ADD:%[0-9]+]]:_(s64) = G_ADD [[LOAD1]], [[LOAD]] 22 ; CHECK: G_STORE [[ADD]](s64), [[COPY8]](p0) :: (volatile store (s64) into %ir.arg9) 23 ; CHECK: RET_ReallyLR 24 %load = load i64, i64* %arg9 25 %add = add i64 %load, %arg8 26 store volatile i64 %add, i64* %arg9 27 ret void 28} 29