1 // RUN: %clang -target mips64el-unknown-linux -ccc-clang-archs mips64el -O3 -S -mabi=n64 -o - -emit-llvm %s | FileCheck %s
2
3 typedef struct {
4 double d;
5 long double ld;
6 } S0;
7
8 // Insert padding to ensure arguments of type S0 are aligned to 16-byte boundaries.
9
10 // CHECK: define void @foo1(i32 %a0, i64, double %a1.coerce0, i64 %a1.coerce1, i64 %a1.coerce2, i64 %a1.coerce3, double %a2.coerce0, i64 %a2.coerce1, i64 %a2.coerce2, i64 %a2.coerce3, i32 %b, i64, double %a3.coerce0, i64 %a3.coerce1, i64 %a3.coerce2, i64 %a3.coerce3)
11 // CHECK: tail call void @foo2(i32 1, i32 2, i32 %a0, i64 undef, double %a1.coerce0, i64 %a1.coerce1, i64 %a1.coerce2, i64 %a1.coerce3, double %a2.coerce0, i64 %a2.coerce1, i64 %a2.coerce2, i64 %a2.coerce3, i32 3, i64 undef, double %a3.coerce0, i64 %a3.coerce1, i64 %a3.coerce2, i64 %a3.coerce3)
12 // CHECK: declare void @foo2(i32, i32, i32, i64, double, i64, i64, i64, double, i64, i64, i64, i32, i64, double, i64, i64, i64)
13
14 extern void foo2(int, int, int, S0, S0, int, S0);
15
foo1(int a0,S0 a1,S0 a2,int b,S0 a3)16 void foo1(int a0, S0 a1, S0 a2, int b, S0 a3) {
17 foo2(1, 2, a0, a1, a2, 3, a3);
18 }
19
20 // Insert padding before long double argument.
21 //
22 // CHECK: define void @foo3(i32 %a0, i64, fp128 %a1)
23 // CHECK: tail call void @foo4(i32 1, i32 2, i32 %a0, i64 undef, fp128 %a1)
24 // CHECK: declare void @foo4(i32, i32, i32, i64, fp128)
25
26 extern void foo4(int, int, int, long double);
27
foo3(int a0,long double a1)28 void foo3(int a0, long double a1) {
29 foo4(1, 2, a0, a1);
30 }
31
32 // Insert padding after hidden argument.
33 //
34 // CHECK: define void @foo5(%struct.S0* noalias sret %agg.result, i64, fp128 %a0)
35 // CHECK: call void @foo6(%struct.S0* sret %agg.result, i32 1, i32 2, i64 undef, fp128 %a0)
36 // CHECK: declare void @foo6(%struct.S0* sret, i32, i32, i64, fp128)
37
38 extern S0 foo6(int, int, long double);
39
foo5(long double a0)40 S0 foo5(long double a0) {
41 return foo6(1, 2, a0);
42 }
43
44