77 lines
2.3 KiB
LLVM
77 lines
2.3 KiB
LLVM
; 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() nounwind {
|
|
%.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-NOT: stp d31, d30
|
|
; CHECK-NOT: stp d29, d28
|
|
; CHECK-NOT: stp d27, d26
|
|
; CHECK-NOT: stp d25, d24
|
|
; CHECK-NOT: stp d23, d22
|
|
; CHECK-NOT: stp d21, d20
|
|
; CHECK-NOT: stp d19, d18
|
|
; CHECK-NOT: stp d17, d16
|
|
; CHECK-NOT: stp d7, d6
|
|
; CHECK-NOT: stp d5, d4
|
|
; CHECK-NOT: stp d3, d2
|
|
; CHECK-NOT: stp d1, d0
|
|
; CHECK-NOT: stp x20, x19
|
|
; CHECK-NOT: stp x14, x13
|
|
; CHECK-NOT: stp x12, x11
|
|
; CHECK-NOT: stp x10, x9
|
|
; CHECK-NOT: stp x8, x7
|
|
; CHECK-NOT: stp x6, x5
|
|
; CHECK-NOT: stp x4, x3
|
|
; CHECK-NOT: stp x2, x1
|
|
; CHECK: blr
|
|
; CHECK: tbnz w{{.*}}, #0, [[BB_end:.?LBB0_[0-9]+]]
|
|
; CHECK: blr
|
|
; CHECK: tlv_atexit
|
|
; CHECK: [[BB_end]]:
|
|
; CHECK: blr
|
|
; CHECK-NOT: ldp x2, x1
|
|
; CHECK-NOT: ldp x4, x3
|
|
; CHECK-NOT: ldp x6, x5
|
|
; CHECK-NOT: ldp x8, x7
|
|
; CHECK-NOT: ldp x10, x9
|
|
; CHECK-NOT: ldp x12, x11
|
|
; CHECK-NOT: ldp x14, x13
|
|
; CHECK-NOT: ldp x20, x19
|
|
; CHECK-NOT: ldp d1, d0
|
|
; CHECK-NOT: ldp d3, d2
|
|
; CHECK-NOT: ldp d5, d4
|
|
; CHECK-NOT: ldp d7, d6
|
|
; CHECK-NOT: ldp d17, d16
|
|
; CHECK-NOT: ldp d19, d18
|
|
; CHECK-NOT: ldp d21, d20
|
|
; CHECK-NOT: ldp d23, d22
|
|
; CHECK-NOT: ldp d25, d24
|
|
; CHECK-NOT: ldp d27, d26
|
|
; CHECK-NOT: ldp d29, d28
|
|
; CHECK-NOT: ldp d31, d30
|