1 ; Test extensions of f32 to f64.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 ; Check register extension.
6 define double @f1(float %val) {
8 ; CHECK: ldebr %f0, %f0
10 %res = fpext float %val to double
14 ; Check the low end of the LDEB range.
15 define double @f2(float *%ptr) {
17 ; CHECK: ldeb %f0, 0(%r2)
19 %val = load float *%ptr
20 %res = fpext float %val to double
24 ; Check the high end of the aligned LDEB range.
25 define double @f3(float *%base) {
27 ; CHECK: ldeb %f0, 4092(%r2)
29 %ptr = getelementptr float *%base, i64 1023
30 %val = load float *%ptr
31 %res = fpext float %val to double
35 ; Check the next word up, which needs separate address logic.
36 ; Other sequences besides this one would be OK.
37 define double @f4(float *%base) {
39 ; CHECK: aghi %r2, 4096
40 ; CHECK: ldeb %f0, 0(%r2)
42 %ptr = getelementptr float *%base, i64 1024
43 %val = load float *%ptr
44 %res = fpext float %val to double
48 ; Check negative displacements, which also need separate address logic.
49 define double @f5(float *%base) {
52 ; CHECK: ldeb %f0, 0(%r2)
54 %ptr = getelementptr float *%base, i64 -1
55 %val = load float *%ptr
56 %res = fpext float %val to double
60 ; Check that LDEB allows indices.
61 define double @f6(float *%base, i64 %index) {
63 ; CHECK: sllg %r1, %r3, 2
64 ; CHECK: ldeb %f0, 400(%r1,%r2)
66 %ptr1 = getelementptr float *%base, i64 %index
67 %ptr2 = getelementptr float *%ptr1, i64 100
68 %val = load float *%ptr2
69 %res = fpext float %val to double