| // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s| FileCheck %s |
| #include <stdarg.h> |
| |
| // CHECK: define signext i8 @f0() |
| char f0(void) { |
| return 0; |
| } |
| |
| // CHECK: define signext i16 @f1() |
| short f1(void) { |
| return 0; |
| } |
| |
| // CHECK: define i32 @f2() |
| int f2(void) { |
| return 0; |
| } |
| |
| // CHECK: define float @f3() |
| float f3(void) { |
| return 0; |
| } |
| |
| // CHECK: define double @f4() |
| double f4(void) { |
| return 0; |
| } |
| |
| // CHECK: define x86_fp80 @f5() |
| long double f5(void) { |
| return 0; |
| } |
| |
| // CHECK: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4) |
| void f6(char a0, short a1, int a2, long long a3, void *a4) { |
| } |
| |
| // CHECK: define void @f7(i32 %a0) |
| typedef enum { A, B, C } e7; |
| void f7(e7 a0) { |
| } |
| |
| // Test merging/passing of upper eightbyte with X87 class. |
| // |
| // CHECK: define void @f8_1(%struct.s19* sret %agg.result) |
| // CHECK: define void @f8_2(%struct.s19* byval align 16 %a0) |
| union u8 { |
| long double a; |
| int b; |
| }; |
| union u8 f8_1() { while (1) {} } |
| void f8_2(union u8 a0) {} |
| |
| // CHECK: define i64 @f9() |
| struct s9 { int a; int b; int : 0; } f9(void) { while (1) {} } |
| |
| // CHECK: define void @f10(i64 %a0.coerce) |
| struct s10 { int a; int b; int : 0; }; |
| void f10(struct s10 a0) {} |
| |
| // CHECK: define void @f11(%struct.s19* sret %agg.result) |
| union { long double a; float b; } f11() { while (1) {} } |
| |
| // CHECK: define i32 @f12_0() |
| // CHECK: define void @f12_1(i32 %a0.coerce) |
| struct s12 { int a __attribute__((aligned(16))); }; |
| struct s12 f12_0(void) { while (1) {} } |
| void f12_1(struct s12 a0) {} |
| |
| // Check that sret parameter is accounted for when checking available integer |
| // registers. |
| // CHECK: define void @f13(%struct.s13_0* sret %agg.result, i32 %a, i32 %b, i32 %c, i32 %d, {{.*}}* byval align 8 %e, i32 %f) |
| |
| struct s13_0 { long long f0[3]; }; |
| struct s13_1 { long long f0[2]; }; |
| struct s13_0 f13(int a, int b, int c, int d, |
| struct s13_1 e, int f) { while (1) {} } |
| |
| // CHECK: define void @f14({{.*}}, i8 signext %X) |
| void f14(int a, int b, int c, int d, int e, int f, char X) {} |
| |
| // CHECK: define void @f15({{.*}}, i8* %X) |
| void f15(int a, int b, int c, int d, int e, int f, void *X) {} |
| |
| // CHECK: define void @f16({{.*}}, float %X) |
| void f16(float a, float b, float c, float d, float e, float f, float g, float h, |
| float X) {} |
| |
| // CHECK: define void @f17({{.*}}, x86_fp80 %X) |
| void f17(float a, float b, float c, float d, float e, float f, float g, float h, |
| long double X) {} |
| |
| // Check for valid coercion. The struct should be passed/returned as i32, not |
| // as i64 for better code quality. |
| // rdar://8135035 |
| // CHECK: define void @f18(i32 %a, i32 %f18_arg1.coerce) |
| struct f18_s0 { int f0; }; |
| void f18(int a, struct f18_s0 f18_arg1) { while (1) {} } |
| |
| // Check byval alignment. |
| |
| // CHECK: define void @f19(%struct.s19* byval align 16 %x) |
| struct s19 { |
| long double a; |
| }; |
| void f19(struct s19 x) {} |
| |
| // CHECK: define void @f20(%struct.s20* byval align 32 %x) |
| struct __attribute__((aligned(32))) s20 { |
| int x; |
| int y; |
| }; |
| void f20(struct s20 x) {} |
| |
| struct StringRef { |
| long x; |
| const char *Ptr; |
| }; |
| |
| // rdar://7375902 |
| // CHECK: define i8* @f21(i64 %S.coerce0, i8* %S.coerce1) |
| const char *f21(struct StringRef S) { return S.x+S.Ptr; } |
| |
| // PR7567 |
| typedef __attribute__ ((aligned(16))) struct f22s { unsigned long long x[2]; } L; |
| void f22(L x, L y) { } |
| // CHECK: @f22 |
| // CHECK: %x = alloca{{.*}}, align 16 |
| // CHECK: %y = alloca{{.*}}, align 16 |
| |
| |
| |
| // PR7714 |
| struct f23S { |
| short f0; |
| unsigned f1; |
| int f2; |
| }; |
| |
| |
| void f23(int A, struct f23S B) { |
| // CHECK: define void @f23(i32 %A, i64 %B.coerce0, i32 %B.coerce1) |
| } |
| |
| struct f24s { long a; int b; }; |
| |
| struct f23S f24(struct f23S *X, struct f24s *P2) { |
| return *X; |
| |
| // CHECK: define %struct.f24s @f24(%struct.f23S* %X, %struct.f24s* %P2) |
| } |
| |
| // rdar://8248065 |
| typedef float v4f32 __attribute__((__vector_size__(16))); |
| v4f32 f25(v4f32 X) { |
| // CHECK: define <4 x float> @f25(<4 x float> %X) |
| // CHECK-NOT: alloca |
| // CHECK: alloca <4 x float> |
| // CHECK-NOT: alloca |
| // CHECK: store <4 x float> %X, <4 x float>* |
| // CHECK-NOT: store |
| // CHECK: ret <4 x float> |
| return X+X; |
| } |
| |
| struct foo26 { |
| int *X; |
| float *Y; |
| }; |
| |
| struct foo26 f26(struct foo26 *P) { |
| // CHECK: define %struct.foo26 @f26(%struct.foo26* %P) |
| return *P; |
| } |
| |
| |
| struct v4f32wrapper { |
| v4f32 v; |
| }; |
| |
| struct v4f32wrapper f27(struct v4f32wrapper X) { |
| // CHECK: define <4 x float> @f27(<4 x float> %X.coerce) |
| return X; |
| } |
| |
| // rdar://5711709 |
| struct f28c { |
| double x; |
| int y; |
| }; |
| void f28(struct f28c C) { |
| // CHECK: define void @f28(double %C.coerce0, i32 %C.coerce1) |
| } |
| |
| struct f29a { |
| struct c { |
| double x; |
| int y; |
| } x[1]; |
| }; |
| |
| void f29a(struct f29a A) { |
| // CHECK: define void @f29a(double %A.coerce0, i32 %A.coerce1) |
| } |
| |
| // rdar://8249586 |
| struct S0 { char f0[8]; char f2; char f3; char f4; }; |
| void f30(struct S0 p_4) { |
| // CHECK: define void @f30(i64 %p_4.coerce0, i24 %p_4.coerce1) |
| } |
| |
| // Pass the third element as a float when followed by tail padding. |
| // rdar://8251384 |
| struct f31foo { float a, b, c; }; |
| float f31(struct f31foo X) { |
| // CHECK: define float @f31(<2 x float> %X.coerce0, float %X.coerce1) |
| return X.c; |
| } |
| |
| _Complex float f32(_Complex float A, _Complex float B) { |
| // rdar://6379669 |
| // CHECK: define <2 x float> @f32(<2 x float> %A.coerce, <2 x float> %B.coerce) |
| return A+B; |
| } |
| |
| |
| // rdar://8357396 |
| struct f33s { long x; float c,d; }; |
| |
| void f33(va_list X) { |
| va_arg(X, struct f33s); |
| } |
| |
| typedef unsigned long long v1i64 __attribute__((__vector_size__(8))); |
| |
| // rdar://8359248 |
| // CHECK: define i64 @f34(i64 %arg.coerce) |
| v1i64 f34(v1i64 arg) { return arg; } |
| |
| |
| // rdar://8358475 |
| // CHECK: define i64 @f35(i64 %arg.coerce) |
| typedef unsigned long v1i64_2 __attribute__((__vector_size__(8))); |
| v1i64_2 f35(v1i64_2 arg) { return arg+arg; } |
| |
| // rdar://9122143 |
| // CHECK: declare void @func(%struct._str* byval align 16) |
| typedef struct _str { |
| union { |
| long double a; |
| long c; |
| }; |
| } str; |
| |
| void func(str s); |
| str ss; |
| void f9122143() |
| { |
| func(ss); |
| } |
| |
| // CHECK: define double @f36(double %arg.coerce) |
| typedef unsigned v2i32 __attribute((__vector_size__(8))); |
| v2i32 f36(v2i32 arg) { return arg; } |