xref: /aosp_15_r20/external/llvm/test/CodeGen/SystemZ/int-move-01.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; Test moves between GPRs.
2*9880d681SAndroid Build Coastguard Worker;
3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker; Test 8-bit moves, which should get promoted to i32.
6*9880d681SAndroid Build Coastguard Workerdefine i8 @f1(i8 %a, i8 %b) {
7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1:
8*9880d681SAndroid Build Coastguard Worker; CHECK: lr %r2, %r3
9*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14
10*9880d681SAndroid Build Coastguard Worker  ret i8 %b
11*9880d681SAndroid Build Coastguard Worker}
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Worker; Test 16-bit moves, which again should get promoted to i32.
14*9880d681SAndroid Build Coastguard Workerdefine i16 @f2(i16 %a, i16 %b) {
15*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2:
16*9880d681SAndroid Build Coastguard Worker; CHECK: lr %r2, %r3
17*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14
18*9880d681SAndroid Build Coastguard Worker  ret i16 %b
19*9880d681SAndroid Build Coastguard Worker}
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Worker; Test 32-bit moves.
22*9880d681SAndroid Build Coastguard Workerdefine i32 @f3(i32 %a, i32 %b) {
23*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3:
24*9880d681SAndroid Build Coastguard Worker; CHECK: lr %r2, %r3
25*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14
26*9880d681SAndroid Build Coastguard Worker  ret i32 %b
27*9880d681SAndroid Build Coastguard Worker}
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Worker; Test 64-bit moves.
30*9880d681SAndroid Build Coastguard Workerdefine i64 @f4(i64 %a, i64 %b) {
31*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4:
32*9880d681SAndroid Build Coastguard Worker; CHECK: lgr %r2, %r3
33*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14
34*9880d681SAndroid Build Coastguard Worker  ret i64 %b
35*9880d681SAndroid Build Coastguard Worker}
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