1 // RUN: %clang -target mipsel-unknown-linux -O3 -S -o - -emit-llvm %s | FileCheck %s -check-prefix=O32
2 // RUN: %clang -target mips64el-unknown-linux -O3 -S -mabi=n64 -o - -emit-llvm %s | FileCheck %s -check-prefix=N64
3
4 typedef struct {
5 double d;
6 long double ld;
7 } S0;
8
9 // Insert padding to ensure arguments of type S0 are aligned to 16-byte boundaries.
10
11 // N64: 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)
12 // N64: 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)
13 // N64: declare void @foo2(i32, i32, i32, i64, double, i64, i64, i64, double, i64, i64, i64, i32, i64, double, i64, i64, i64)
14
15 extern void foo2(int, int, int, S0, S0, int, S0);
16
foo1(int a0,S0 a1,S0 a2,int b,S0 a3)17 void foo1(int a0, S0 a1, S0 a2, int b, S0 a3) {
18 foo2(1, 2, a0, a1, a2, 3, a3);
19 }
20
21 // Insert padding before long double argument.
22 //
23 // N64: define void @foo3(i32 %a0, i64, fp128 %a1)
24 // N64: tail call void @foo4(i32 1, i32 2, i32 %a0, i64 undef, fp128 %a1)
25 // N64: declare void @foo4(i32, i32, i32, i64, fp128)
26
27 extern void foo4(int, int, int, long double);
28
foo3(int a0,long double a1)29 void foo3(int a0, long double a1) {
30 foo4(1, 2, a0, a1);
31 }
32
33 // Insert padding after hidden argument.
34 //
35 // N64: define void @foo5(%struct.S0* noalias sret %agg.result, i64, fp128 %a0)
36 // N64: call void @foo6(%struct.S0* sret %agg.result, i32 1, i32 2, i64 undef, fp128 %a0)
37 // N64: declare void @foo6(%struct.S0* sret, i32, i32, i64, fp128)
38
39 extern S0 foo6(int, int, long double);
40
foo5(long double a0)41 S0 foo5(long double a0) {
42 return foo6(1, 2, a0);
43 }
44
45 // Do not insert padding if ABI is O32.
46 //
47 // O32: define void @foo7(float %a0, double %a1)
48 // O32: declare void @foo8(float, double)
49
50 extern void foo8(float, double);
51
foo7(float a0,double a1)52 void foo7(float a0, double a1) {
53 foo8(a0 + 1.0f, a1 + 2.0);
54 }
55
56