xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/libcall-sret.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=i686-linux-gnu -o - %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker@var = global i128 0
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker; We were trying to convert the i128 operation into a libcall, but failing to
6*9880d681SAndroid Build Coastguard Worker; perform sret demotion when we couldn't return the result in registers. Make
7*9880d681SAndroid Build Coastguard Worker; sure we marshal the return properly:
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Workerdefine void @test_sret_libcall(i128 %l, i128 %r) {
10*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test_sret_libcall:
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Worker  ; Stack for call: 4(sret ptr), 16(i128 %l), 16(128 %r). So next logical
13*9880d681SAndroid Build Coastguard Worker  ; (aligned) place for the actual sret data is %esp + 20.
14*9880d681SAndroid Build Coastguard Worker; CHECK: leal 20(%esp), [[SRET_ADDR:%[a-z]+]]
15*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
16*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
17*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
18*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
19*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
20*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
21*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
22*9880d681SAndroid Build Coastguard Worker; CHECK: pushl 72(%esp)
23*9880d681SAndroid Build Coastguard Worker; CHECK: pushl [[SRET_ADDR]]
24*9880d681SAndroid Build Coastguard Worker
25*9880d681SAndroid Build Coastguard Worker; CHECK: calll __multi3
26*9880d681SAndroid Build Coastguard Worker
27*9880d681SAndroid Build Coastguard Worker; CHECK: addl $44, %esp
28*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl 8(%esp), [[RES0:%[a-z]+]]
29*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl 12(%esp), [[RES1:%[a-z]+]]
30*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl 16(%esp), [[RES2:%[a-z]+]]
31*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl 20(%esp), [[RES3:%[a-z]+]]
32*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl [[RES0]], var
33*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl [[RES1]], var+4
34*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl [[RES2]], var+8
35*9880d681SAndroid Build Coastguard Worker; CHECK-DAG: movl [[RES3]], var+12
36*9880d681SAndroid Build Coastguard Worker  %prod = mul i128 %l, %r
37*9880d681SAndroid Build Coastguard Worker  store i128 %prod, i128* @var
38*9880d681SAndroid Build Coastguard Worker  ret void
39*9880d681SAndroid Build Coastguard Worker}
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