aboutsummaryrefslogtreecommitdiffstats
path: root/test/CodeGen/ARM/tail-call.ll
blob: 771158632ecfb389df293cb3ba1315ac7162baa4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
; RUN: llc -mtriple armv7 -O0 -o - < %s | FileCheck %s -check-prefix CHECK-TAIL
; RUN: llc -mtriple armv7 -O0 -disable-tail-calls -o - < %s \
; RUN:   | FileCheck %s -check-prefix CHECK-NO-TAIL

declare i32 @callee(i32 %i)

define i32 @caller(i32 %i) {
entry:
  %r = tail call i32 @callee(i32 %i)
  ret i32 %r
}

; CHECK-TAIL-LABEL: caller
; CHECK-TAIL: b callee

; CHECK-NO-TAIL-LABEL: caller
; CHECK-NO-TAIL: push {lr}
; CHECK-NO-TAIL: bl callee
; CHECK-NO-TAIL: pop {lr}
; CHECK-NO-TAIL: bx lr