1 ; Test variable-sized allocas and addresses based on them in cases where
2 ; stack arguments are needed.
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK1
5 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK2
6 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-A
7 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-B
8 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-C
9 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-D
10 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP
12 declare i64 @bar(i8 *%a, i8 *%b, i8 *%c, i8 *%d, i8 *%e, i64 %f, i64 %g)
14 ; Allocate %length bytes and take addresses based on the result.
15 ; There are two stack arguments, so an offset of 160 + 2 * 8 == 176
16 ; is added to the copy of %r15.
17 define i64 @f1(i64 %length, i64 %index) {
18 ; The full allocation sequence is:
26 ; The third instruction does not depend on the first two, so check for
27 ; two fully-ordered sequences.
29 ; FIXME: a better sequence would be:
37 ; CHECK1: la %r0, 7(%r2)
38 ; CHECK1: nill %r0, 65528
39 ; CHECK1: sgr %r1, %r0
40 ; CHECK1: lgr %r15, %r1
43 ; CHECK2: lgr %r1, %r15
44 ; CHECK2: sgr %r1, %r0
45 ; CHECK2: lgr %r15, %r1
48 ; CHECK-A: lgr %r15, %r1
49 ; CHECK-A: la %r2, 176(%r1)
52 ; CHECK-B: lgr %r15, %r1
53 ; CHECK-B: la %r3, 177(%r1)
56 ; CHECK-C: lgr %r15, %r1
57 ; CHECK-C: la %r4, 4095({{%r3,%r1|%r1,%r3}})
60 ; CHECK-D: lgr %r15, %r1
61 ; CHECK-D: lay %r5, 4096({{%r3,%r1|%r1,%r3}})
64 ; CHECK-E: lgr %r15, %r1
65 ; CHECK-E: lay %r6, 4271({{%r3,%r1|%r1,%r3}})
68 ; CHECK-FP: lgr %r11, %r15
69 ; CHECK-FP: lmg %r6, %r15, 224(%r11)
70 %a = alloca i8, i64 %length
71 %b = getelementptr i8 *%a, i64 1
72 %cindex = add i64 %index, 3919
73 %c = getelementptr i8 *%a, i64 %cindex
74 %dindex = add i64 %index, 3920
75 %d = getelementptr i8 *%a, i64 %dindex
76 %eindex = add i64 %index, 4095
77 %e = getelementptr i8 *%a, i64 %eindex
78 %count = call i64 @bar(i8 *%a, i8 *%b, i8 *%c, i8 *%d, i8 *%e, i64 0, i64 0)
79 %res = add i64 %count, 1