xref: /aosp_15_r20/external/llvm/test/CodeGen/SystemZ/alloca-03.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; Allocate 8 bytes, no need to align stack.
4*9880d681SAndroid Build Coastguard Workerdefine void @f0() {
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f0:
6*9880d681SAndroid Build Coastguard Worker; CHECK: aghi %r15, -168
7*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: nil
8*9880d681SAndroid Build Coastguard Worker; CHECK: mvghi 160(%r15), 10
9*9880d681SAndroid Build Coastguard Worker; CHECK: aghi %r15, 168
10*9880d681SAndroid Build Coastguard Worker  %x = alloca i64
11*9880d681SAndroid Build Coastguard Worker  store volatile i64 10, i64* %x
12*9880d681SAndroid Build Coastguard Worker  ret void
13*9880d681SAndroid Build Coastguard Worker}
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Worker; Allocate %len * 8, no need to align stack.
16*9880d681SAndroid Build Coastguard Workerdefine void @f1(i64 %len) {
17*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1:
18*9880d681SAndroid Build Coastguard Worker; CHECK: sllg    %r0, %r2, 3
19*9880d681SAndroid Build Coastguard Worker; CHECK: lgr     %r1, %r15
20*9880d681SAndroid Build Coastguard Worker; CHECK: sgr     %r1, %r0
21*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: ngr
22*9880d681SAndroid Build Coastguard Worker; CHECK: lgr     %r15, %r1
23*9880d681SAndroid Build Coastguard Worker; CHECK: la      %r1, 160(%r1)
24*9880d681SAndroid Build Coastguard Worker; CHECK: mvghi   0(%r1), 10
25*9880d681SAndroid Build Coastguard Worker  %x = alloca i64, i64 %len
26*9880d681SAndroid Build Coastguard Worker  store volatile i64 10, i64* %x
27*9880d681SAndroid Build Coastguard Worker  ret void
28*9880d681SAndroid Build Coastguard Worker}
29*9880d681SAndroid Build Coastguard Worker
30*9880d681SAndroid Build Coastguard Worker; Static alloca, align 128.
31*9880d681SAndroid Build Coastguard Workerdefine void @f2() {
32*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2:
33*9880d681SAndroid Build Coastguard Worker; CHECK: aghi    %r1, -128
34*9880d681SAndroid Build Coastguard Worker; CHECK: lgr     %r15, %r1
35*9880d681SAndroid Build Coastguard Worker; CHECK: la      %r1, 280(%r1)
36*9880d681SAndroid Build Coastguard Worker; CHECK: nill	 %r1, 65408
37*9880d681SAndroid Build Coastguard Worker; CHECK: mvghi   0(%r1), 10
38*9880d681SAndroid Build Coastguard Worker  %x = alloca i64, i64 1, align 128
39*9880d681SAndroid Build Coastguard Worker  store volatile i64 10, i64* %x, align 128
40*9880d681SAndroid Build Coastguard Worker  ret void
41*9880d681SAndroid Build Coastguard Worker}
42*9880d681SAndroid Build Coastguard Worker
43*9880d681SAndroid Build Coastguard Worker; Dynamic alloca, align 128.
44*9880d681SAndroid Build Coastguard Workerdefine void @f3(i64 %len) {
45*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3:
46*9880d681SAndroid Build Coastguard Worker; CHECK: sllg	%r1, %r2, 3
47*9880d681SAndroid Build Coastguard Worker; CHECK: la	%r0, 120(%r1)
48*9880d681SAndroid Build Coastguard Worker; CHECK: lgr	%r1, %r15
49*9880d681SAndroid Build Coastguard Worker; CHECK: sgr	%r1, %r0
50*9880d681SAndroid Build Coastguard Worker; CHECK: lgr	%r15, %r1
51*9880d681SAndroid Build Coastguard Worker; CHECK: la	%r1, 280(%r1)
52*9880d681SAndroid Build Coastguard Worker; CHECK: nill	%r1, 65408
53*9880d681SAndroid Build Coastguard Worker; CHECK: mvghi	0(%r1), 10
54*9880d681SAndroid Build Coastguard Worker  %x = alloca i64, i64 %len, align 128
55*9880d681SAndroid Build Coastguard Worker  store volatile i64 10, i64* %x, align 128
56*9880d681SAndroid Build Coastguard Worker  ret void
57*9880d681SAndroid Build Coastguard Worker}
58*9880d681SAndroid Build Coastguard Worker
59*9880d681SAndroid Build Coastguard Worker; Static alloca w/out alignment - part of frame.
60*9880d681SAndroid Build Coastguard Workerdefine void @f4() {
61*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4:
62*9880d681SAndroid Build Coastguard Worker; CHECK: aghi    %r15, -168
63*9880d681SAndroid Build Coastguard Worker; CHECK: mvhi    164(%r15), 10
64*9880d681SAndroid Build Coastguard Worker; CHECK: aghi    %r15, 168
65*9880d681SAndroid Build Coastguard Worker  %x = alloca i32
66*9880d681SAndroid Build Coastguard Worker  store volatile i32 10, i32* %x
67*9880d681SAndroid Build Coastguard Worker  ret void
68*9880d681SAndroid Build Coastguard Worker}
69*9880d681SAndroid Build Coastguard Worker
70*9880d681SAndroid Build Coastguard Worker; Static alloca of one i32, aligned by 128.
71*9880d681SAndroid Build Coastguard Workerdefine void @f5() {
72*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f5:
73*9880d681SAndroid Build Coastguard Worker
74*9880d681SAndroid Build Coastguard Worker; CHECK: lgr	%r1, %r15
75*9880d681SAndroid Build Coastguard Worker; CHECK: aghi	%r1, -128
76*9880d681SAndroid Build Coastguard Worker; CHECK: lgr	%r15, %r1
77*9880d681SAndroid Build Coastguard Worker; CHECK: la	%r1, 280(%r1)
78*9880d681SAndroid Build Coastguard Worker; CHECK: nill	%r1, 65408
79*9880d681SAndroid Build Coastguard Worker; CHECK: mvhi	0(%r1), 10
80*9880d681SAndroid Build Coastguard Worker  %x = alloca i32, i64 1, align 128
81*9880d681SAndroid Build Coastguard Worker  store volatile i32 10, i32* %x
82*9880d681SAndroid Build Coastguard Worker  ret void
83*9880d681SAndroid Build Coastguard Worker}
84*9880d681SAndroid Build Coastguard Worker
85