344 lines
10 KiB
C
344 lines
10 KiB
C
// RUN: %clang_cc1 -w -fblocks -triple i386-apple-darwin9 -target-cpu yonah -emit-llvm -o - %s | FileCheck %s
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// CHECK-LABEL: define signext i8 @f0()
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char f0(void) {
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return 0;
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}
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// CHECK-LABEL: define signext i16 @f1()
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short f1(void) {
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return 0;
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}
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// CHECK-LABEL: define i32 @f2()
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int f2(void) {
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return 0;
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}
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// CHECK-LABEL: define float @f3()
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float f3(void) {
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return 0;
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}
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// CHECK-LABEL: define double @f4()
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double f4(void) {
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return 0;
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}
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// CHECK-LABEL: define x86_fp80 @f5()
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long double f5(void) {
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return 0;
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}
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// CHECK-LABEL: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4)
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void f6(char a0, short a1, int a2, long long a3, void *a4) {}
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// CHECK-LABEL: define void @f7(i32 %a0)
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typedef enum { A, B, C } e7;
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void f7(e7 a0) {}
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// CHECK-LABEL: define i64 @f8_1()
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// CHECK-LABEL: define void @f8_2(i32 %a0.0, i32 %a0.1)
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struct s8 {
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int a;
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int b;
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};
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struct s8 f8_1(void) { while (1) {} }
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void f8_2(struct s8 a0) {}
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// This should be passed just as s8.
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// CHECK-LABEL: define i64 @f9_1()
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// FIXME: llvm-gcc expands this, this may have some value for the
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// backend in terms of optimization but doesn't change the ABI.
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// CHECK-LABEL: define void @f9_2(%struct.s9* byval align 4 %a0)
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struct s9 {
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int a : 17;
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int b;
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};
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struct s9 f9_1(void) { while (1) {} }
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void f9_2(struct s9 a0) {}
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// Return of small structures and unions
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// CHECK: float @f10()
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struct s10 {
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union { };
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float f;
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} f10(void) { while (1) {} }
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// Small vectors and 1 x {i64,double} are returned in registers
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// CHECK: i32 @f11()
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// CHECK: void @f12(<2 x i32>* noalias sret %agg.result)
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// CHECK: i64 @f13()
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// CHECK: i64 @f14()
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// CHECK: <2 x i64> @f15()
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// CHECK: <2 x i64> @f16()
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typedef short T11 __attribute__ ((vector_size (4)));
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T11 f11(void) { while (1) {} }
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typedef int T12 __attribute__ ((vector_size (8)));
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T12 f12(void) { while (1) {} }
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typedef long long T13 __attribute__ ((vector_size (8)));
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T13 f13(void) { while (1) {} }
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typedef double T14 __attribute__ ((vector_size (8)));
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T14 f14(void) { while (1) {} }
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typedef long long T15 __attribute__ ((vector_size (16)));
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T15 f15(void) { while (1) {} }
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typedef double T16 __attribute__ ((vector_size (16)));
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T16 f16(void) { while (1) {} }
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// And when the single element in a struct (but not for 64 and
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// 128-bits).
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// CHECK: i32 @f17()
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// CHECK: void @f18(%{{.*}}* noalias sret %agg.result)
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// CHECK: void @f19(%{{.*}}* noalias sret %agg.result)
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// CHECK: void @f20(%{{.*}}* noalias sret %agg.result)
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// CHECK: void @f21(%{{.*}}* noalias sret %agg.result)
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// CHECK: void @f22(%{{.*}}* noalias sret %agg.result)
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struct { T11 a; } f17(void) { while (1) {} }
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struct { T12 a; } f18(void) { while (1) {} }
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struct { T13 a; } f19(void) { while (1) {} }
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struct { T14 a; } f20(void) { while (1) {} }
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struct { T15 a; } f21(void) { while (1) {} }
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struct { T16 a; } f22(void) { while (1) {} }
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// Single element structures are handled specially
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// CHECK: float @f23()
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// CHECK: float @f24()
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// CHECK: float @f25()
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struct { float a; } f23(void) { while (1) {} }
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struct { float a[1]; } f24(void) { while (1) {} }
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struct { struct {} a; struct { float a[1]; } b; } f25(void) { while (1) {} }
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// Small structures are handled recursively
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// CHECK: i32 @f26()
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// CHECK: void @f27(%struct.s27* noalias sret %agg.result)
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struct s26 { struct { char a, b; } a; struct { char a, b; } b; } f26(void) { while (1) {} }
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struct s27 { struct { char a, b, c; } a; struct { char a; } b; } f27(void) { while (1) {} }
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// CHECK: void @f28(%struct.s28* noalias sret %agg.result)
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struct s28 { int a; int b[]; } f28(void) { while (1) {} }
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// CHECK-LABEL: define i16 @f29()
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struct s29 { struct { } a[1]; char b; char c; } f29(void) { while (1) {} }
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// CHECK-LABEL: define i16 @f30()
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struct s30 { char a; char b : 4; } f30(void) { while (1) {} }
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// CHECK-LABEL: define float @f31()
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struct s31 { char : 0; float b; char : 0; } f31(void) { while (1) {} }
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// CHECK-LABEL: define i32 @f32()
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struct s32 { char a; unsigned : 0; } f32(void) { while (1) {} }
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// CHECK-LABEL: define float @f33()
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struct s33 { float a; long long : 0; } f33(void) { while (1) {} }
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// CHECK-LABEL: define float @f34()
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struct s34 { struct { int : 0; } a; float b; } f34(void) { while (1) {} }
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// CHECK-LABEL: define i16 @f35()
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struct s35 { struct { int : 0; } a; char b; char c; } f35(void) { while (1) {} }
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// CHECK-LABEL: define i16 @f36()
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struct s36 { struct { int : 0; } a[2][10]; char b; char c; } f36(void) { while (1) {} }
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// CHECK-LABEL: define float @f37()
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struct s37 { float c[1][1]; } f37(void) { while (1) {} }
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// CHECK-LABEL: define void @f38(%struct.s38* noalias sret %agg.result)
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struct s38 { char a[3]; short b; } f38(void) { while (1) {} }
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// CHECK-LABEL: define void @f39(%struct.s39* byval align 16 %x)
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typedef int v39 __attribute((vector_size(16)));
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struct s39 { v39 x; };
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void f39(struct s39 x) {}
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// <rdar://problem/7247671>
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// CHECK-LABEL: define i32 @f40()
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enum e40 { ec0 = 0 };
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enum e40 f40(void) { }
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// CHECK-LABEL: define void ()* @f41()
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typedef void (^vvbp)(void);
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vvbp f41(void) { }
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// CHECK-LABEL: define i32 @f42()
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struct s42 { enum e40 f0; } f42(void) { }
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// CHECK-LABEL: define i64 @f43()
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struct s43 { enum e40 f0; int f1; } f43(void) { }
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// CHECK-LABEL: define void ()* @f44()
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struct s44 { vvbp f0; } f44(void) { }
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// CHECK-LABEL: define i64 @f45()
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struct s45 { vvbp f0; int f1; } f45(void) { }
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// CHECK-LABEL: define void @f46(i32 %a0)
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void f46(enum e40 a0) { }
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// CHECK-LABEL: define void @f47(void ()* %a1)
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void f47(vvbp a1) { }
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// CHECK-LABEL: define void @f48(i32 %a0.0)
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struct s48 { enum e40 f0; };
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void f48(struct s48 a0) { }
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// CHECK-LABEL: define void @f49(i32 %a0.0, i32 %a0.1)
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struct s49 { enum e40 f0; int f1; };
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void f49(struct s49 a0) { }
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// CHECK-LABEL: define void @f50(void ()* %a0.0)
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struct s50 { vvbp f0; };
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void f50(struct s50 a0) { }
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// CHECK-LABEL: define void @f51(void ()* %a0.0, i32 %a0.1)
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struct s51 { vvbp f0; int f1; };
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void f51(struct s51 a0) { }
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// CHECK-LABEL: define void @f52(%struct.s52* byval align 4)
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struct s52 {
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long double a;
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};
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void f52(struct s52 x) {}
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// CHECK-LABEL: define void @f53(%struct.s53* byval align 4)
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struct __attribute__((aligned(32))) s53 {
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int x;
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int y;
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};
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void f53(struct s53 x) {}
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typedef unsigned short v2i16 __attribute__((__vector_size__(4)));
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// CHECK-LABEL: define i32 @f54(i32 %arg.coerce)
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// rdar://8359483
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v2i16 f54(v2i16 arg) { return arg+arg; }
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typedef int v4i32 __attribute__((__vector_size__(16)));
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// CHECK-LABEL: define <2 x i64> @f55(<4 x i32> %arg)
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// PR8029
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v4i32 f55(v4i32 arg) { return arg+arg; }
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// CHECK-LABEL: define void @f56(
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// CHECK: i8 signext %a0, %struct.s56_0* byval align 4 %a1,
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// CHECK: i64 %a2.coerce, %struct.s56_1* byval align 4,
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// CHECK: i64 %a4.coerce, %struct.s56_2* byval align 4,
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// CHECK: <4 x i32> %a6, %struct.s56_3* byval align 16 %a7,
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// CHECK: <2 x double> %a8, %struct.s56_4* byval align 16 %a9,
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// CHECK: <8 x i32> %a10, %struct.s56_5* byval align 4,
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// CHECK: <4 x double> %a12, %struct.s56_6* byval align 4)
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// CHECK: call void (i32, ...)* @f56_0(i32 1,
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// CHECK: i32 %{{[^ ]*}}, %struct.s56_0* byval align 4 %{{[^ ]*}},
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// CHECK: i64 %{{[^ ]*}}, %struct.s56_1* byval align 4 %{{[^ ]*}},
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// CHECK: i64 %{{[^ ]*}}, %struct.s56_2* byval align 4 %{{[^ ]*}},
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// CHECK: <4 x i32> %{{[^ ]*}}, %struct.s56_3* byval align 16 %{{[^ ]*}},
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// CHECK: <2 x double> %{{[^ ]*}}, %struct.s56_4* byval align 16 %{{[^ ]*}},
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// CHECK: <8 x i32> {{[^ ]*}}, %struct.s56_5* byval align 4 %{{[^ ]*}},
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// CHECK: <4 x double> {{[^ ]*}}, %struct.s56_6* byval align 4 %{{[^ ]*}})
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// CHECK: }
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//
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// <rdar://problem/7964854> [i386] clang misaligns long double in structures
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// when passed byval
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// <rdar://problem/8431367> clang misaligns parameters on stack
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typedef int __attribute__((vector_size (8))) t56_v2i;
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typedef double __attribute__((vector_size (8))) t56_v1d;
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typedef int __attribute__((vector_size (16))) t56_v4i;
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typedef double __attribute__((vector_size (16))) t56_v2d;
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typedef int __attribute__((vector_size (32))) t56_v8i;
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typedef double __attribute__((vector_size (32))) t56_v4d;
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struct s56_0 { char a; };
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struct s56_1 { t56_v2i a; };
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struct s56_2 { t56_v1d a; };
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struct s56_3 { t56_v4i a; };
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struct s56_4 { t56_v2d a; };
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struct s56_5 { t56_v8i a; };
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struct s56_6 { t56_v4d a; };
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void f56(char a0, struct s56_0 a1,
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t56_v2i a2, struct s56_1 a3,
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t56_v1d a4, struct s56_2 a5,
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t56_v4i a6, struct s56_3 a7,
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t56_v2d a8, struct s56_4 a9,
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t56_v8i a10, struct s56_5 a11,
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t56_v4d a12, struct s56_6 a13) {
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extern void f56_0(int x, ...);
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f56_0(1, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
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a10, a11, a12, a13);
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}
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// CHECK-LABEL: define void @f57(i32 %x.0, i32 %x.1)
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// CHECK: call void @f57(
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struct s57 { _Complex int x; };
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void f57(struct s57 x) {} void f57a(void) { f57((struct s57){1}); }
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// CHECK-LABEL: define void @f58()
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union u58 {};
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void f58(union u58 x) {}
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// CHECK-LABEL: define i64 @f59()
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struct s59 { float x __attribute((aligned(8))); };
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struct s59 f59() { while (1) {} }
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// CHECK-LABEL: define void @f60(%struct.s60* byval align 4, i32 %y)
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struct s60 { int x __attribute((aligned(8))); };
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void f60(struct s60 x, int y) {}
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// CHECK-LABEL: define void @f61(i32 %x, %struct.s61* byval align 16 %y)
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typedef int T61 __attribute((vector_size(16)));
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struct s61 { T61 x; int y; };
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void f61(int x, struct s61 y) {}
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// CHECK-LABEL: define void @f62(i32 %x, %struct.s62* byval align 4)
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typedef int T62 __attribute((vector_size(16)));
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struct s62 { T62 x; int y; } __attribute((packed, aligned(8)));
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void f62(int x, struct s62 y) {}
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// CHECK-LABEL: define i32 @f63
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// CHECK: ptrtoint
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// CHECK: and {{.*}}, -16
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// CHECK: inttoptr
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typedef int T63 __attribute((vector_size(16)));
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struct s63 { T63 x; int y; };
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int f63(int i, ...) {
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__builtin_va_list ap;
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__builtin_va_start(ap, i);
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struct s63 s = __builtin_va_arg(ap, struct s63);
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__builtin_va_end(ap);
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return s.y;
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}
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// CHECK-LABEL: define void @f64(%struct.s64* byval align 4 %x)
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struct s64 { signed char a[0]; signed char b[]; };
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void f64(struct s64 x) {}
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// CHECK-LABEL: define float @f65()
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struct s65 { signed char a[0]; float b; };
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struct s65 f65() { return (struct s65){{},2}; }
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// CHECK-LABEL: define <2 x i64> @f66
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// CHECK: ptrtoint
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// CHECK: and {{.*}}, -16
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// CHECK: inttoptr
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typedef int T66 __attribute((vector_size(16)));
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T66 f66(int i, ...) {
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__builtin_va_list ap;
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__builtin_va_start(ap, i);
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T66 v = __builtin_va_arg(ap, T66);
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__builtin_va_end(ap);
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return v;
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}
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// PR14453
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struct s67 { _Complex unsigned short int a; };
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void f67(struct s67 x) {}
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// CHECK-LABEL: define void @f67(%struct.s67* byval align 4 %x)
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