arm64-fast-isel-ret.ll
1.43 KB
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
; RUN: llc -O0 -fast-isel -fast-isel-abort=1 -verify-machineinstrs -mtriple=arm64-apple-darwin < %s | FileCheck %s
;; Test returns.
define void @t0() nounwind ssp {
entry:
; CHECK: t0
; CHECK: ret
ret void
}
define i32 @t1(i32 %a) nounwind ssp {
entry:
; CHECK: t1
; CHECK: str w0, [sp, #12]
; CHECK-NEXT: ldr w0, [sp, #12]
; CHECK: ret
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
%tmp = load i32, i32* %a.addr, align 4
ret i32 %tmp
}
define i64 @t2(i64 %a) nounwind ssp {
entry:
; CHECK: t2
; CHECK: str x0, [sp, #8]
; CHECK-NEXT: ldr x0, [sp, #8]
; CHECK: ret
%a.addr = alloca i64, align 8
store i64 %a, i64* %a.addr, align 8
%tmp = load i64, i64* %a.addr, align 8
ret i64 %tmp
}
define signext i16 @ret_i16(i16 signext %a) nounwind {
entry:
; CHECK: @ret_i16
; CHECK: sxth w0, {{w[0-9]+}}
%a.addr = alloca i16, align 1
store i16 %a, i16* %a.addr, align 1
%0 = load i16, i16* %a.addr, align 1
ret i16 %0
}
define signext i8 @ret_i8(i8 signext %a) nounwind {
entry:
; CHECK: @ret_i8
; CHECK: sxtb w0, {{w[0-9]+}}
%a.addr = alloca i8, align 1
store i8 %a, i8* %a.addr, align 1
%0 = load i8, i8* %a.addr, align 1
ret i8 %0
}
define signext i1 @ret_i1(i1 signext %a) nounwind {
entry:
; CHECK: @ret_i1
; CHECK: and [[REG:w[0-9]+]], {{w[0-9]+}}, #0x1
; CHECK: sbfx w0, [[REG]], #0, #1
%a.addr = alloca i1, align 1
store i1 %a, i1* %a.addr, align 1
%0 = load i1, i1* %a.addr, align 1
ret i1 %0
}