aboutsummaryrefslogtreecommitdiffstats
path: root/test/CodeGen/ARM/Windows/mov32t-bundling.ll
blob: 5f838378fa87ece75cee14972a1739325b73fb60 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
; RUN: llc -mtriple thumbv7-windows-itanium -filetype asm -o - %s | FileCheck %s

@_begin = external global i8
@_end = external global i8

declare arm_aapcs_vfpcc void @force_emission()

define arm_aapcs_vfpcc void @bundle() {
entry:
  br i1 icmp uge (i32 sub (i32 ptrtoint (i8* @_end to i32), i32 ptrtoint (i8* @_begin to i32)), i32 4), label %if.then, label %if.end

if.then:
  tail call arm_aapcs_vfpcc void @force_emission()
  br label %if.end

if.end:
  ret void
}

; CHECK-LABEL: bundle
; CHECK-NOT: subs r0, r1, r0
; CHECK: movw r0, :lower16:_begin
; CHECK-NEXT: movt r0, :upper16:_begin
; CHECK-NEXT: movw r1, :lower16:_end
; CHECK-NEXT: movt r1, :upper16:_end
; CHECK-NEXT: subs r0, r1, r0
; CHECK-NEXT: cmp r0, #4