1 ; Make sure that the alloca offset isn't lost when the alloca result is
2 ; used directly in a load or store. There must always be an LA or LAY.
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-A
5 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-B
6 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-C
7 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-D
9 declare i64 @bar(i8 *%a)
11 define i64 @f1(i64 %length, i64 %index) {
13 ; CHECK-A: lgr %r15, [[ADDR:%r[1-5]]]
14 ; CHECK-A: la %r2, 160([[ADDR]])
15 ; CHECK-A: mvi 0(%r2), 0
18 ; CHECK-B: lgr %r15, [[ADDR:%r[1-5]]]
19 ; CHECK-B: la %r2, 160([[ADDR]])
20 ; CHECK-B: mvi 4095(%r2), 1
23 ; CHECK-C: lgr %r15, [[ADDR:%r[1-5]]]
24 ; CHECK-C: la [[TMP:%r[1-5]]], 160(%r3,[[ADDR]])
25 ; CHECK-C: mvi 0([[TMP]]), 2
28 ; CHECK-D: lgr %r15, [[ADDR:%r[1-5]]]
29 ; CHECK-D: la [[TMP:%r[1-5]]], 160(%r3,[[ADDR]])
30 ; CHECK-D: mvi 4095([[TMP]]), 3
33 ; CHECK-E: lgr %r15, [[ADDR:%r[1-5]]]
34 ; CHECK-E: la [[TMP:%r[1-5]]], 160(%r3,[[ADDR]])
35 ; CHECK-E: mviy 4096([[TMP]]), 4
36 %a = alloca i8, i64 %length
37 store volatile i8 0, i8 *%a
38 %b = getelementptr i8 *%a, i64 4095
39 store volatile i8 1, i8 *%b
40 %c = getelementptr i8 *%a, i64 %index
41 store volatile i8 2, i8 *%c
42 %d = getelementptr i8 *%c, i64 4095
43 store volatile i8 3, i8 *%d
44 %e = getelementptr i8 *%d, i64 1
45 store volatile i8 4, i8 *%e
46 %count = call i64 @bar(i8 *%a)
47 %res = add i64 %count, 1