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
5 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-A
6 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-B
7 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-C
8 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-D
9 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP
11 declare i64 @bar(i8 *%a, i8 *%b, i8 *%c, i8 *%d, i8 *%e, i64 %f, i64 %g)
13 ; Allocate %length bytes and take addresses based on the result.
14 ; There are two stack arguments, so an offset of 160 + 2 * 8 == 176
15 ; is added to the copy of %r15.
17 ; NOTE: 'la %r0, 177(%r1)' is actually an expected fail as it would
18 ; be better (and possible) to load into %r3 directly.
20 define i64 @f1(i64 %length, i64 %index) {
21 ; FIXME: a better sequence would be:
29 ; CHECK-DAG: la [[REG1:%r[0-5]]], 7(%r2)
30 ; CHECK-DAG: nill [[REG1]], 65528
31 ; CHECK-DAG: lgr [[REG2:%r[0-5]]], %r15
32 ; CHECK: sgr [[REG2]], [[REG1]]
33 ; CHECK: lgr %r15, [[REG2]]
36 ; CHECK-A-DAG: lgr %r15, %r1
37 ; CHECK-A-DAG: la %r2, 176(%r1)
40 ; CHECK-B: lgr %r15, %r1
41 ; CHECK-B: la %r0, 177(%r1)
44 ; CHECK-C: lgr %r15, %r1
45 ; CHECK-C: la %r4, 4095({{%r3,%r1|%r1,%r3}})
48 ; CHECK-D: lgr %r15, %r1
49 ; CHECK-D: lay %r5, 4096({{%r3,%r1|%r1,%r3}})
52 ; CHECK-E: lgr %r15, %r1
53 ; CHECK-E: lay %r6, 4271({{%r3,%r1|%r1,%r3}})
56 ; CHECK-FP: lgr %r11, %r15
57 ; CHECK-FP: lmg %r6, %r15, 224(%r11)
58 %a = alloca i8, i64 %length
59 %b = getelementptr i8, i8 *%a, i64 1
60 %cindex = add i64 %index, 3919
61 %c = getelementptr i8, i8 *%a, i64 %cindex
62 %dindex = add i64 %index, 3920
63 %d = getelementptr i8, i8 *%a, i64 %dindex
64 %eindex = add i64 %index, 4095
65 %e = getelementptr i8, i8 *%a, i64 %eindex
66 %count = call i64 @bar(i8 *%a, i8 *%b, i8 *%c, i8 *%d, i8 *%e, i64 0, i64 0)
67 %res = add i64 %count, 1