xref: /aosp_15_r20/external/llvm/test/CodeGen/ARM/nest-register.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; Tests that the 'nest' parameter attribute causes the relevant parameter to be
4*9880d681SAndroid Build Coastguard Worker; passed in the right register.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine i8* @nest_receiver(i8* nest %arg) nounwind {
7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: nest_receiver:
8*9880d681SAndroid Build Coastguard Worker; CHECK: @ BB#0:
9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: mov r0, r12
10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: mov pc, lr
11*9880d681SAndroid Build Coastguard Worker        ret i8* %arg
12*9880d681SAndroid Build Coastguard Worker}
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Workerdefine i8* @nest_caller(i8* %arg) nounwind {
15*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: nest_caller:
16*9880d681SAndroid Build Coastguard Worker; CHECK: mov r12, r0
17*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: bl nest_receiver
18*9880d681SAndroid Build Coastguard Worker; CHECK: mov pc, lr
19*9880d681SAndroid Build Coastguard Worker        %result = call i8* @nest_receiver(i8* nest %arg)
20*9880d681SAndroid Build Coastguard Worker        ret i8* %result
21*9880d681SAndroid Build Coastguard Worker}
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