blob: f5497a04d6dc7f91de47a9d1cfd50f6fd09d0b4c [file] [log] [blame]
; RUN: llc -mtriple=aarch64-unknown-linux-gnu -relocation-model=pic -verify-machineinstrs %s -o - | FileCheck %s
; TLSDESC resolver calling convention does not retain the flags register.
; Check that a TLS descriptor call cannot be lowered in between a cmp and the use of flags.
@var = thread_local global i32 zeroinitializer
@test = global i32 zeroinitializer
define i32 @test_thread_local() {
; CHECK-LABEL: test_thread_local:
; CHECK: // %bb.0:
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: adrp x8, :got:test
; CHECK-NEXT: ldr x8, [x8, :got_lo12:test]
; CHECK-NEXT: adrp x0, :tlsdesc:var
; CHECK-NEXT: ldr x1, [x0, :tlsdesc_lo12:var]
; CHECK-NEXT: add x0, x0, :tlsdesc_lo12:var
; CHECK-NEXT: .tlsdesccall var
; CHECK-NEXT: blr x1
; CHECK-NEXT: mrs x9, TPIDR_EL0
; CHECK-NEXT: ldr w9, [x9, x0]
; CHECK-NEXT: cmp x8, #0
; CHECK-NEXT: cinc w0, w9, eq
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
%testval = load i32, ptr @test
%test = icmp eq ptr @test, null
%val = load i32, ptr @var
%result = zext i1 %test to i32
%result2 = add i32 %val, %result
ret i32 %result2
}