1 ; RUN: llc < %s -mtriple=aarch64-apple-ios | FileCheck %s 2 ; RUN: llc < %s -mtriple=aarch64-apple-ios -enable-shrink-wrap=true | FileCheck --check-prefix=CHECK %s 3 ; Shrink wrapping currently does not kick in because we have a TLS CALL 4 ; in the entry block and it will clobber the link register. 5 6 %struct.S = type { i8 } 7 8 @sg = internal thread_local global %struct.S zeroinitializer, align 1 9 @__dso_handle = external global i8 10 @__tls_guard = internal thread_local unnamed_addr global i1 false 11 12 declare %struct.S* @_ZN1SC1Ev(%struct.S* returned) 13 declare %struct.S* @_ZN1SD1Ev(%struct.S* returned) 14 declare i32 @_tlv_atexit(void (i8*)*, i8*, i8*) 15 16 define cxx_fast_tlscc nonnull %struct.S* @_ZTW2sg() nounwind { 17 %.b.i = load i1, i1* @__tls_guard, align 1 18 br i1 %.b.i, label %__tls_init.exit, label %init.i 19 20 init.i: 21 store i1 true, i1* @__tls_guard, align 1 22 %call.i.i = tail call %struct.S* @_ZN1SC1Ev(%struct.S* nonnull @sg) 23 %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) 24 br label %__tls_init.exit 25 26 __tls_init.exit: 27 ret %struct.S* @sg 28 } 29 30 ; CHECK-LABEL: _ZTW2sg 31 ; CHECK-NOT: stp d31, d30 32 ; CHECK-NOT: stp d29, d28 33 ; CHECK-NOT: stp d27, d26 34 ; CHECK-NOT: stp d25, d24 35 ; CHECK-NOT: stp d23, d22 36 ; CHECK-NOT: stp d21, d20 37 ; CHECK-NOT: stp d19, d18 38 ; CHECK-NOT: stp d17, d16 39 ; CHECK-NOT: stp d7, d6 40 ; CHECK-NOT: stp d5, d4 41 ; CHECK-NOT: stp d3, d2 42 ; CHECK-NOT: stp d1, d0 43 ; CHECK-NOT: stp x20, x19 44 ; CHECK-NOT: stp x14, x13 45 ; CHECK-NOT: stp x12, x11 46 ; CHECK-NOT: stp x10, x9 47 ; CHECK-NOT: stp x8, x7 48 ; CHECK-NOT: stp x6, x5 49 ; CHECK-NOT: stp x4, x3 50 ; CHECK-NOT: stp x2, x1 51 ; CHECK: blr 52 ; CHECK: tbnz w{{.*}}, #0, [[BB_end:.?LBB0_[0-9]+]] 53 ; CHECK: blr 54 ; CHECK: tlv_atexit 55 ; CHECK: [[BB_end]]: 56 ; CHECK: blr 57 ; CHECK-NOT: ldp x2, x1 58 ; CHECK-NOT: ldp x4, x3 59 ; CHECK-NOT: ldp x6, x5 60 ; CHECK-NOT: ldp x8, x7 61 ; CHECK-NOT: ldp x10, x9 62 ; CHECK-NOT: ldp x12, x11 63 ; CHECK-NOT: ldp x14, x13 64 ; CHECK-NOT: ldp x20, x19 65 ; CHECK-NOT: ldp d1, d0 66 ; CHECK-NOT: ldp d3, d2 67 ; CHECK-NOT: ldp d5, d4 68 ; CHECK-NOT: ldp d7, d6 69 ; CHECK-NOT: ldp d17, d16 70 ; CHECK-NOT: ldp d19, d18 71 ; CHECK-NOT: ldp d21, d20 72 ; CHECK-NOT: ldp d23, d22 73 ; CHECK-NOT: ldp d25, d24 74 ; CHECK-NOT: ldp d27, d26 75 ; CHECK-NOT: ldp d29, d28 76 ; CHECK-NOT: ldp d31, d30 77
