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 // RUN: %clang -target mipsel-unknown-linux -mfp64 -O3 -S -o - -emit-llvm %s | FileCheck %s -check-prefix=O32 4 5 typedef struct { 6 double d; 7 long double ld; 8 } S0; 9 10 // Insert padding to ensure arguments of type S0 are aligned to 16-byte boundaries. 11 12 // N64-LABEL: 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) 13 // 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) 14 // N64: declare void @foo2(i32, i32, i32, i64, double, i64, i64, i64, double, i64, i64, i64, i32, i64, double, i64, i64, i64) 15 16 extern void foo2(int, int, int, S0, S0, int, S0); 17 18 void foo1(int a0, S0 a1, S0 a2, int b, S0 a3) { 19 foo2(1, 2, a0, a1, a2, 3, a3); 20 } 21 22 // Insert padding before long double argument. 23 // 24 // N64-LABEL: define void @foo3(i32 %a0, i64, fp128 %a1) 25 // N64: tail call void @foo4(i32 1, i32 2, i32 %a0, i64 undef, fp128 %a1) 26 // N64: declare void @foo4(i32, i32, i32, i64, fp128) 27 28 extern void foo4(int, int, int, long double); 29 30 void foo3(int a0, long double a1) { 31 foo4(1, 2, a0, a1); 32 } 33 34 // Insert padding after hidden argument. 35 // 36 // N64-LABEL: define void @foo5(%struct.S0* noalias sret %agg.result, i64, fp128 %a0) 37 // N64: call void @foo6(%struct.S0* sret %agg.result, i32 1, i32 2, i64 undef, fp128 %a0) 38 // N64: declare void @foo6(%struct.S0* sret, i32, i32, i64, fp128) 39 40 extern S0 foo6(int, int, long double); 41 42 S0 foo5(long double a0) { 43 return foo6(1, 2, a0); 44 } 45 46 // Do not insert padding if ABI is O32. 47 // 48 // O32-LABEL: define void @foo7(float %a0, double %a1) 49 // O32: declare void @foo8(float, double) 50 51 extern void foo8(float, double); 52 53 void foo7(float a0, double a1) { 54 foo8(a0 + 1.0f, a1 + 2.0); 55 } 56 57 // O32-LABEL: define void @foo9() 58 // O32: declare void @foo10(i32, i32 59 60 typedef struct __attribute__((aligned(16))) { 61 int a; 62 } S16; 63 64 S16 s16; 65 66 void foo10(int, S16); 67 68 void foo9(void) { 69 foo10(1, s16); 70 } 71 72
