| // RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s |
| |
| |
| // CHECK: _Z3fooRi(i32* inreg |
| void __attribute__ ((regparm (1))) foo(int &a) { |
| } |
| |
| struct S1 { |
| int x; |
| S1(const S1 &y); |
| }; |
| |
| void __attribute__((regparm(3))) foo2(S1 a, int b); |
| // CHECK: declare void @_Z4foo22S1i(%struct.S1* inreg, i32 inreg) |
| void bar2(S1 a, int b) { |
| foo2(a, b); |
| } |
| |
| struct S2 { |
| int x; |
| }; |
| |
| void __attribute__((regparm(3))) foo3(struct S2 a, int b); |
| // CHECK: declare void @_Z4foo32S2i(i32 inreg, i32 inreg) |
| void bar3(struct S2 a, int b) { |
| foo3(a, b); |
| } |
| |
| struct S3 { |
| struct { |
| struct {} b[0]; |
| } a; |
| }; |
| __attribute((regparm(2))) void foo4(S3 a, int b); |
| // CHECK: declare void @_Z4foo42S3i(%struct.S3* byval align 4, i32 inreg) |
| void bar3(S3 a, int b) { |
| foo4(a, b); |
| } |