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
|
; Test f128 moves on z14.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
; VR-to-VR moves. Since f128s are passed by reference,
; we need to force a copy by other means.
define void @f1(ptr %x) {
; CHECK-LABEL: f1:
; CHECK: vlr
; CHECK: vleig
; CHECK: br %r14
%val = load volatile fp128, ptr %x
%t1 = bitcast fp128 %val to <2 x i64>
%t2 = insertelement <2 x i64> %t1, i64 0, i32 0
%res = bitcast <2 x i64> %t2 to fp128
store volatile fp128 %res, ptr %x
store volatile fp128 %val, ptr %x
ret void
}
; Test 128-bit moves from GPRs to VRs. i128 isn't a legitimate type,
; so this goes through memory.
define void @f2(ptr %a, ptr %b) {
; CHECK-LABEL: f2:
; CHECK: vl
; CHECK: vst
; CHECK: br %r14
%val = load i128, ptr %b
%res = bitcast i128 %val to fp128
store fp128 %res, ptr %a
ret void
}
; Test 128-bit moves from VRs to GPRs, with the same restriction as f2.
define void @f3(ptr %a, ptr %b) {
; CHECK-LABEL: f3:
; CHECK: vl
; CHECK: vst
%val = load fp128, ptr %a
%res = bitcast fp128 %val to i128
store i128 %res, ptr %b
ret void
}
|
