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comparison clang/test/CodeGenCXX/regparm.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
parents
children c4bab56944e8
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147:c2174574ed3a 150:1d019706d866
1 // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
2
3
4 // CHECK: _Z3fooRi(i32* inreg
5 void __attribute__ ((regparm (1))) foo(int &a) {
6 }
7
8 struct S1 {
9 int x;
10 S1(const S1 &y);
11 };
12
13 void __attribute__((regparm(3))) foo2(S1 a, int b);
14 // CHECK: declare void @_Z4foo22S1i(%struct.S1* inreg, i32 inreg)
15 void bar2(S1 a, int b) {
16 foo2(a, b);
17 }
18
19 struct S2 {
20 int x;
21 };
22
23 void __attribute__((regparm(3))) foo3(struct S2 a, int b);
24 // CHECK: declare void @_Z4foo32S2i(i32 inreg, i32 inreg)
25 void bar3(struct S2 a, int b) {
26 foo3(a, b);
27 }
28
29 struct S3 {
30 struct {
31 struct {} b[0];
32 } a;
33 };
34 __attribute((regparm(2))) void foo4(S3 a, int b);
35 // CHECK: declare void @_Z4foo42S3i(%struct.S3* byval(%struct.S3) align 4, i32 inreg)
36 void bar3(S3 a, int b) {
37 foo4(a, b);
38 }