| ; RUN: llc < %s -mtriple=aarch64-apple-ios | FileCheck %s |
| ; RUN: llc < %s -mtriple=aarch64-apple-ios -enable-shrink-wrap=true | FileCheck --check-prefix=CHECK %s |
| ; Shrink wrapping currently does not kick in because we have a TLS CALL |
| ; in the entry block and it will clobber the link register. |
| |
| %struct.S = type { i8 } |
| |
| @sg = internal thread_local global %struct.S zeroinitializer, align 1 |
| @__dso_handle = external global i8 |
| @__tls_guard = internal thread_local unnamed_addr global i1 false |
| |
| declare %struct.S* @_ZN1SC1Ev(%struct.S* returned) |
| declare %struct.S* @_ZN1SD1Ev(%struct.S* returned) |
| declare i32 @_tlv_atexit(void (i8*)*, i8*, i8*) |
| |
| define cxx_fast_tlscc nonnull %struct.S* @_ZTW2sg() { |
| %.b.i = load i1, i1* @__tls_guard, align 1 |
| br i1 %.b.i, label %__tls_init.exit, label %init.i |
| |
| init.i: |
| store i1 true, i1* @__tls_guard, align 1 |
| %call.i.i = tail call %struct.S* @_ZN1SC1Ev(%struct.S* nonnull @sg) |
| %1 = tail call i32 @_tlv_atexit(void (i8*)* nonnull bitcast (%struct.S* (%struct.S*)* @_ZN1SD1Ev to void (i8*)*), i8* nonnull getelementptr inbounds (%struct.S, %struct.S* @sg, i64 0, i32 0), i8* nonnull @__dso_handle) |
| br label %__tls_init.exit |
| |
| __tls_init.exit: |
| ret %struct.S* @sg |
| } |
| |
| ; CHECK-LABEL: _ZTW2sg |
| ; CHECK-DAG: stp d31, d30 |
| ; CHECK-DAG: stp d29, d28 |
| ; CHECK-DAG: stp d27, d26 |
| ; CHECK-DAG: stp d25, d24 |
| ; CHECK-DAG: stp d23, d22 |
| ; CHECK-DAG: stp d21, d20 |
| ; CHECK-DAG: stp d19, d18 |
| ; CHECK-DAG: stp d17, d16 |
| ; CHECK-DAG: stp d7, d6 |
| ; CHECK-DAG: stp d5, d4 |
| ; CHECK-DAG: stp d3, d2 |
| ; CHECK-DAG: stp d1, d0 |
| ; CHECK-DAG: stp x20, x19 |
| ; CHECK-DAG: stp x14, x13 |
| ; CHECK-DAG: stp x12, x11 |
| ; CHECK-DAG: stp x10, x9 |
| ; CHECK-DAG: stp x8, x7 |
| ; CHECK-DAG: stp x6, x5 |
| ; CHECK-DAG: stp x4, x3 |
| ; CHECK-DAG: stp x2, x1 |
| ; CHECK-DAG: stp x29, x30 |
| ; CHECK: blr |
| ; CHECK: tbnz w{{.*}}, #0, [[BB_end:.?LBB0_[0-9]+]] |
| ; CHECK: blr |
| ; CHECK: tlv_atexit |
| ; CHECK: [[BB_end]]: |
| ; CHECK: blr |
| ; CHECK-DAG: ldp x2, x1 |
| ; CHECK-DAG: ldp x4, x3 |
| ; CHECK-DAG: ldp x6, x5 |
| ; CHECK-DAG: ldp x8, x7 |
| ; CHECK-DAG: ldp x10, x9 |
| ; CHECK-DAG: ldp x12, x11 |
| ; CHECK-DAG: ldp x14, x13 |
| ; CHECK-DAG: ldp x20, x19 |
| ; CHECK-DAG: ldp d1, d0 |
| ; CHECK-DAG: ldp d3, d2 |
| ; CHECK-DAG: ldp d5, d4 |
| ; CHECK-DAG: ldp d7, d6 |
| ; CHECK-DAG: ldp d17, d16 |
| ; CHECK-DAG: ldp d19, d18 |
| ; CHECK-DAG: ldp d21, d20 |
| ; CHECK-DAG: ldp d23, d22 |
| ; CHECK-DAG: ldp d25, d24 |
| ; CHECK-DAG: ldp d27, d26 |
| ; CHECK-DAG: ldp d29, d28 |
| ; CHECK-DAG: ldp d31, d30 |