153 lines
5.4 KiB
LLVM
153 lines
5.4 KiB
LLVM
|
; RUN: llc < %s -mtriple=armv7k-apple-watchos2.0 | FileCheck %s
|
||
|
|
; RUN: llc < %s -mtriple=armv7k-apple-watchos2.0 -enable-shrink-wrap=true | FileCheck %s
|
||
|
|
; RUN: llc < %s -mtriple=armv7-apple-ios8.0 | FileCheck %s
|
||
|
|
; RUN: llc < %s -mtriple=armv7-apple-ios8.0 -enable-shrink-wrap=true | FileCheck %s
|
||
|
|
|
||
|
|
; RUN: llc < %s -mtriple=armv7k-apple-watchos2.0 -O0 | FileCheck --check-prefix=CHECK-O0 --check-prefix=WATCH-O0 %s
|
||
|
|
; RUN: llc < %s -mtriple=armv7-apple-ios8.0 -O0 | FileCheck --check-prefix=CHECK-O0 --check-prefix=IOS-O0 %s
|
||
|
|
|
||
|
|
; RUN: llc < %s -mtriple=thumbv7-apple-ios8.0 | FileCheck --check-prefix=THUMB %s
|
||
|
|
|
||
|
|
%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
|
||
|
|
@sum1 = internal thread_local global i32 0, align 4
|
||
|
|
|
||
|
|
%class.C = type { i32 }
|
||
|
|
@tC = internal thread_local global %class.C zeroinitializer, align 4
|
||
|
|
|
||
|
|
declare %struct.S* @_ZN1SC1Ev(%struct.S* returned)
|
||
|
|
declare %struct.S* @_ZN1SD1Ev(%struct.S* returned)
|
||
|
|
declare i32 @_tlv_atexit(void (i8*)*, i8*, i8*)
|
||
|
|
|
||
|
|
; Make sure Epilog does not overwrite an explicitly-handled CSR in CXX_FAST_TLS.
|
||
|
|
; THUMB-LABEL: _ZTW2sg
|
||
|
|
; THUMB: push {{.*}}lr
|
||
|
|
; THUMB: blx
|
||
|
|
; THUMB: bne{{(.w)?}} [[TH_end:.?LBB0_[0-9]+]]
|
||
|
|
; THUMB: blx
|
||
|
|
; THUMB: tlv_atexit
|
||
|
|
; THUMB: [[TH_end]]:
|
||
|
|
; THUMB: blx
|
||
|
|
; THUMB: r4
|
||
|
|
; THUMB: pop {{.*}}r4
|
||
|
|
define cxx_fast_tlscc nonnull %struct.S* @_ZTW2sg() nounwind "frame-pointer"="all" {
|
||
|
|
%.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: push {r4, r5, r7, lr}
|
||
|
|
; CHECK: push {r11, r12}
|
||
|
|
; CHECK-NOT: vpush {d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31}
|
||
|
|
; CHECK-NOT: vpush {d0, d1, d2, d3, d4, d5, d6, d7}
|
||
|
|
; CHECK: blx
|
||
|
|
; CHECK: bne [[BB_end:.?LBB0_[0-9]+]]
|
||
|
|
; CHECK: blx
|
||
|
|
; CHECK: tlv_atexit
|
||
|
|
; CHECK: [[BB_end]]:
|
||
|
|
; CHECK: blx
|
||
|
|
; CHECK-NOT: vpop {d0, d1, d2, d3, d4, d5, d6, d7}
|
||
|
|
; CHECK-NOT: vpop {d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31}
|
||
|
|
; CHECK-NOT: pop {r9, r12}
|
||
|
|
; CHECK-NOT: pop {r1, r2, r3, r4, r7, pc}
|
||
|
|
; CHECK: pop {r4, r5, r7, pc}
|
||
|
|
|
||
|
|
; CHECK-O0-LABEL: _ZTW2sg
|
||
|
|
; WATCH-O0: push {r1, r2, r3, r6, r7, lr}
|
||
|
|
; IOS-O0: push {r1, r2, r3, r7, lr}
|
||
|
|
; CHECK-O0: push {r9, r12}
|
||
|
|
; CHECK-O0: vpush {d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31}
|
||
|
|
; CHECK-O0: vpush {d0, d1, d2, d3, d4, d5, d6, d7}
|
||
|
|
; CHECK-O0: blx
|
||
|
|
; CHECK-O0: bne [[BB_end:.?LBB0_[0-9]+]]
|
||
|
|
; CHECK-O0: blx
|
||
|
|
; CHECK-O0: tlv_atexit
|
||
|
|
; CHECK-O0: [[BB_end]]:
|
||
|
|
; CHECK-O0: blx
|
||
|
|
; CHECK-O0: vpop {d0, d1, d2, d3, d4, d5, d6, d7}
|
||
|
|
; CHECK-O0: vpop {d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31}
|
||
|
|
; CHECK-O0: pop {r9, r12}
|
||
|
|
; WATCH-O0: pop {r1, r2, r3, r6, r7, pc}
|
||
|
|
; IOS-O0: pop {r1, r2, r3, r7, pc}
|
||
|
|
|
||
|
|
; CHECK-LABEL: _ZTW4sum1
|
||
|
|
; CHECK-NOT: push {r1, r2, r3, r4, r7, lr}
|
||
|
|
; CHECK-NOT: push {r9, r12}
|
||
|
|
; CHECK-NOT: vpush {d16, d17, d18, d19, d20, d21, d22, d23, d24, d25, d26, d27, d28, d29, d30, d31}
|
||
|
|
; CHECK-NOT: vpush {d0, d1, d2, d3, d4, d5, d6, d7}
|
||
|
|
; CHECK: blx
|
||
|
|
|
||
|
|
; CHECK-O0-LABEL: _ZTW4sum1
|
||
|
|
; CHECK-O0-NOT: vpush
|
||
|
|
; CHECK-O0-NOT: vstr
|
||
|
|
; CHECK-O0-NOT: vpop
|
||
|
|
; CHECK-O0-NOT: vldr
|
||
|
|
; CHECK-O0: pop
|
||
|
|
define cxx_fast_tlscc nonnull i32* @_ZTW4sum1() nounwind "frame-pointer"="all" {
|
||
|
|
ret i32* @sum1
|
||
|
|
}
|
||
|
|
|
||
|
|
; Make sure at O0, we don't generate spilling/reloading of the CSRs.
|
||
|
|
; CHECK-O0-LABEL: tls_test2
|
||
|
|
; CHECK-O0: push
|
||
|
|
; CHECK-O0-NOT: vpush
|
||
|
|
; CHECK-O0-NOT: vstr
|
||
|
|
; CHECK-O0: tls_helper
|
||
|
|
; CHECK-O0-NOT: vpop
|
||
|
|
; CHECK-O0-NOT: vldr
|
||
|
|
; CHECK-O0: pop
|
||
|
|
declare cxx_fast_tlscc void @tls_helper()
|
||
|
|
define cxx_fast_tlscc %class.C* @tls_test2() #1 "frame-pointer"="all" {
|
||
|
|
call cxx_fast_tlscc void @tls_helper()
|
||
|
|
ret %class.C* @tC
|
||
|
|
}
|
||
|
|
|
||
|
|
; Make sure we do not allow tail call when caller and callee have different
|
||
|
|
; calling conventions.
|
||
|
|
declare %class.C* @_ZN1CD1Ev(%class.C* readnone returned %this)
|
||
|
|
; CHECK-LABEL: tls_test
|
||
|
|
; CHECK: bl __tlv_atexit
|
||
|
|
define cxx_fast_tlscc void @__tls_test() "frame-pointer"="all" {
|
||
|
|
entry:
|
||
|
|
store i32 0, i32* getelementptr inbounds (%class.C, %class.C* @tC, i64 0, i32 0), align 4
|
||
|
|
%0 = tail call i32 @_tlv_atexit(void (i8*)* bitcast (%class.C* (%class.C*)* @_ZN1CD1Ev to void (i8*)*), i8* bitcast (%class.C* @tC to i8*), i8* nonnull @__dso_handle) #1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @somefunc()
|
||
|
|
define cxx_fast_tlscc void @test_ccmismatch_notail() "frame-pointer"="all" {
|
||
|
|
; A tail call is not possible here because somefunc does not preserve enough
|
||
|
|
; registers.
|
||
|
|
; CHECK-LABEL: test_ccmismatch_notail:
|
||
|
|
; CHECK-NOT: b _somefunc
|
||
|
|
; CHECK: bl _somefunc
|
||
|
|
tail call void @somefunc()
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare cxx_fast_tlscc void @some_fast_tls_func()
|
||
|
|
define void @test_ccmismatch_tail() "frame-pointer"="all" {
|
||
|
|
; We can perform a tail call here because some_fast_tls_func preserves all
|
||
|
|
; necessary registers (and more).
|
||
|
|
; CHECK-LABEL: test_ccmismatch_tail:
|
||
|
|
; CHECK-NOT: bl _some_fast_tls_func
|
||
|
|
; CHECK: b _some_fast_tls_func
|
||
|
|
tail call cxx_fast_tlscc void @some_fast_tls_func()
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { nounwind "frame-pointer"="all" }
|
||
|
|
attributes #1 = { nounwind }
|