// RUN: %clang_cc1 %s -verify -fsyntax-only -Weverything -Wno-unused-but-set-variable -triple x86_64-apple-darwin10
// Test the compatibility of clang's vector extensions with gcc's vector
// extensions for C. Notably &&, ||, ?: and ! are not available.
typedef long long v2i64 __attribute__((vector_size(16)));
typedef int v2i32 __attribute__((vector_size(8)));
typedef short v2i16 __attribute__((vector_size(4)));
typedef char v2i8 __attribute__((vector_size(2)));
typedef unsigned long long v2u64 __attribute__((vector_size(16)));
typedef unsigned int v2u32 __attribute__((vector_size(8)));
typedef unsigned short v2u16 __attribute__((vector_size(4)));
typedef unsigned char v2u8 __attribute__((vector_size(2)));
typedef float v4f32 __attribute__((vector_size(16)));
typedef double v2f64 __attribute__((vector_size(16)));
typedef double v4f64 __attribute__((vector_size(32)));
typedef int v4i32 __attribute((vector_size(16)));
// Verify that we can use the [[]] spelling of the attribute.
// We intentionally use the same type alias name to check that both versions
// define the same type.
typedef long long v2i64 [[gnu::vector_size(16)]]; // expected-warning{{[[]] attributes are a C23 extension}}
typedef int v2i32 [[gnu::vector_size(8)]]; // expected-warning{{[[]] attributes are a C23 extension}}
// Check various positions where the [[]] spelling can or cannot be used.
[[gnu::vector_size(16)]] typedef long long v2i64; // expected-warning{{[[]] attributes are a C23 extension}}
typedef long long [[gnu::vector_size(16)]] v2i64_ignored;
// expected-warning@-1{{'vector_size' attribute ignored}}
// expected-warning@-2{{[[]] attributes are a C23 extension}}
// FIXME: Contrary to the error message that we emit, GCC does actually allow
// the attribute in the following position. Somewhat surprisingly, the attribute
// is applied not to the pointer but to the base type, i.e. this declaration has
// the same effect in GCC as the other declarations for `v2i64`.
typedef long long *[[gnu::vector_size(16)]] v2i64_doesnt_work;
// expected-error@-1{{invalid vector element type 'long long *'}}
// expected-warning@-2{{GCC does not allow the 'vector_size' attribute to be written on a type}}
// expected-warning@-3{{[[]] attributes are a C23 extension}}
// Verify that we can use the attribute outside of a typedef.
static int v2i32_var [[gnu::vector_size(8)]]; // expected-warning{{[[]] attributes are a C23 extension}}
void arithmeticTest(void);
void logicTest(void);
void comparisonTest(void);
void floatTestSignedType(char a, short b, int c, long long d);
void floatTestUnsignedType(unsigned char a, unsigned short b, unsigned int c,
unsigned long long d);
void floatTestConstant(void);
void intTestType(char a, short b, int c, long long d);
void intTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int c,
unsigned long long d);
void uintTestType(char a, short b, int c, long long d);
void uintTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int c,
unsigned long long d);
void uintTestConstant(v2u64 v2u64_a, v2u32 v2u32_a, v2u16 v2u16_a, v2u8 v2u8_a);
void intTestConstant(v2i64 v2i64_a, v2i32 v2i32_a, v2i16 v2i16_a, v2i8 v2i8_a);
void arithmeticTest(void) {
v2i64 v2i64_a = (v2i64){0, 1};
v2i64 v2i64_r;
v2i64_r = v2i64_a + 1;
v2i64_r = v2i64_a - 1;
v2i64_r = v2i64_a * 1;
v2i64_r = v2i64_a / 1;
v2i64_r = v2i64_a % 1;
v2i64_r = 1 + v2i64_a;
v2i64_r = 1 - v2i64_a;
v2i64_r = 1 * v2i64_a;
v2i64_r = 1 / v2i64_a;
v2i64_r = 1 % v2i64_a;
v2i64_a += 1;
v2i64_a -= 1;
v2i64_a *= 1;
v2i64_a /= 1;
v2i64_a %= 1;
}
void comparisonTest(void) {
v2i64 v2i64_a = (v2i64){0, 1};
v2i64 v2i64_r;
v2i64_r = v2i64_a == 1;
v2i64_r = v2i64_a != 1;
v2i64_r = v2i64_a < 1;
v2i64_r = v2i64_a > 1;
v2i64_r = v2i64_a <= 1;
v2i64_r = v2i64_a >= 1;
v2i64_r = 1 == v2i64_a;
v2i64_r = 1 != v2i64_a;
v2i64_r = 1 < v2i64_a;
v2i64_r = 1 > v2i64_a;
v2i64_r = 1 <= v2i64_a;
v2i64_r = 1 >= v2i64_a;
}
void logicTest(void) {
v2i64 v2i64_a = (v2i64){0, 1};
v2i64 v2i64_b = (v2i64){2, 1};
v2i64 v2i64_c = (v2i64){3, 1};
v2i64 v2i64_r;
v2i64_r = !v2i64_a; // expected-error {{invalid argument type 'v2i64' (vector of 2 'long long' values) to unary expression}}
v2i64_r = ~v2i64_a;
v2i64_r = v2i64_a ? v2i64_b : v2i64_c; // expected-error {{used type 'v2i64' (vector of 2 'long long' values) where arithmetic or pointer type is required}}
v2i64_r = v2i64_a & 1;
v2i64_r = v2i64_a | 1;
v2i64_r = v2i64_a ^ 1;
v2i64_r = 1 & v2i64_a;
v2i64_r = 1 | v2i64_a;
v2i64_r = 1 ^ v2i64_a;
v2i64_a &= 1;
v2i64_a |= 1;
v2i64_a ^= 1;
v2i64_r = v2i64_a && 1; // expected-error {{logical expression with vector type 'v2i64' (vector of 2 'long long' values) and non-vector type 'int' is only supported in C++}}
v2i64_r = v2i64_a || 1; // expected-error {{logical expression with vector type 'v2i64' (vector of 2 'long long' values) and non-vector type 'int' is only supported in C++}}
v2i64_r = v2i64_a && v2i64_a; // expected-error {{logical expression with vector types 'v2i64' (vector of 2 'long long' values) and 'v2i64' is only supported in C++}}
v2i64_r = v2i64_a || v2i64_a; // expected-error {{logical expression with vector types 'v2i64' (vector of 2 'long long' values) and 'v2i64' is only supported in C++}}
v2i64_r = v2i64_a << 1;
v2i64_r = v2i64_a >> 1;
v2i64_r = 1 << v2i64_a;
v2i64_r = 1 >> v2i64_a;
v2i64_a <<= 1;
v2i64_a >>= 1;
}
// For operations with floating point types, we check that integer constants
// can be respresented, or failing that checking based on the integer types.
void floatTestConstant(void) {
// Test that constants added to floats must be expressible as floating point
// numbers.
v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
v4f32_a = v4f32_a + 1;
v4f32_a = v4f32_a + 0xFFFFFF;
v4f32_a = v4f32_a + (-1567563LL);
v4f32_a = v4f32_a + (16777208);
v4f32_a = v4f32_a + (16777219); // expected-error {{cannot convert between scalar type 'int' and vector type 'v4f32' (vector of 4 'float' values) as implicit conversion would cause truncation}}
}
void floatTestConstantComparison(void);
void doubleTestConstantComparison(void);
void floatTestConstantComparison(void) {
v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
v4i32 v4i32_r;
v4i32_r = v4f32_a > 0.4f;
v4i32_r = v4f32_a >= 0.4f;
v4i32_r = v4f32_a < 0.4f;
v4i32_r = v4f32_a <= 0.4f;
v4i32_r = v4f32_a == 0.4f; // expected-warning {{comparing floating point with == or != is unsafe}}
v4i32_r = v4f32_a != 0.4f; // expected-warning {{comparing floating point with == or != is unsafe}}
}
void doubleTestConstantComparison(void) {
v2f64 v2f64_a = {0.4, 0.4};
v2i64 v2i64_r;
v2i64_r = v2f64_a > 0.4;
v2i64_r = v2f64_a >= 0.4;
v2i64_r = v2f64_a < 0.4;
v2i64_r = v2f64_a <= 0.4;
v2i64_r = v2f64_a == 0.4; // expected-warning {{comparing floating point with == or != is unsafe}}
v2i64_r = v2f64_a != 0.4; // expected-warning {{comparing floating point with == or != is unsafe}}
}
void floatTestUnsignedType(unsigned char a, unsigned short b, unsigned int c,
unsigned long long d) {
v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
v4f64 v4f64_b = {0.4, 0.4, 0.4, 0.4};
v4f32_a = v4f32_a + a;
v4f32_a = v4f32_a + b;
v4f32_a = v4f32_a + c; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v4f32' (vector of 4 'float' values) as implicit conversion would cause truncation}}
v4f32_a = v4f32_a + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v4f32' (vector of 4 'float' values) as implicit conversion would cause truncation}}
v4f64_b = v4f64_b + a;
v4f64_b = v4f64_b + b;
v4f64_b = v4f64_b + c;
v4f64_b = v4f64_b + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v4f64' (vector of 4 'double' values) as implicit conversion would cause truncation}}
}
void floatTestSignedType(char a, short b, int c, long long d) {
v4f32 v4f32_a = {0.4f, 0.4f, 0.4f, 0.4f};
v4f64 v4f64_b = {0.4, 0.4, 0.4, 0.4};
v4f32_a = v4f32_a + a;
v4f32_a = v4f32_a + b;
v4f32_a = v4f32_a + c; // expected-error {{cannot convert between scalar type 'int' and vector type 'v4f32' (vector of 4 'float' values) as implicit conversion would cause truncation}}
v4f32_a = v4f32_a + d; // expected-error {{cannot convert between scalar type 'long long' and vector type 'v4f32' (vector of 4 'float' values) as implicit conversion would cause truncation}}
v4f64_b = v4f64_b + a;
v4f64_b = v4f64_b + b;
v4f64_b = v4f64_b + c;
v4f64_b = v4f64_b + d; // expected-error {{cannot convert between scalar type 'long long' and vector type 'v4f64' (vector of 4 'double' values) as implicit conversion would cause truncation}}
}
void intTestType(char a, short b, int c, long long d) {
v2i64 v2i64_a = {1, 2};
v2i32 v2i32_a = {1, 2};
v2i16 v2i16_a = {1, 2};
v2i8 v2i8_a = {1, 2};
v2i64_a = v2i64_a + d;
v2i64_a = v2i64_a + c;
v2i64_a = v2i64_a + b;
v2i64_a = v2i64_a + a;
v2i32_a = v2i32_a + d; // expected-warning {{implicit conversion loses integer precision: 'long long' to 'v2i32' (vector of 2 'int' values)}}
v2i32_a = v2i32_a + c;
v2i32_a = v2i32_a + b;
v2i32_a = v2i32_a + a;
v2i16_a = v2i16_a + d; // expected-error {{cannot convert between scalar type 'long long' and vector type 'v2i16' (vector of 2 'short' values) as implicit conversion would cause truncation}}
v2i16_a = v2i16_a + c; // expected-warning {{implicit conversion loses integer precision: 'int' to 'v2i16' (vector of 2 'short' values)}}
v2i16_a = v2i16_a + b;
v2i16_a = v2i16_a + a;
v2i8_a = v2i8_a + d; // expected-error {{cannot convert between scalar type 'long long' and vector type 'v2i8' (vector of 2 'char' values) as implicit conversion would cause truncation}}
v2i8_a = v2i8_a + c; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2i8' (vector of 2 'char' values) as implicit conversion would cause truncation}}
v2i8_a = v2i8_a + b; // expected-warning {{implicit conversion loses integer precision: 'short' to 'v2i8' (vector of 2 'char' values)}}
v2i8_a = v2i8_a + a;
}
void intTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int c,
unsigned long long d) {
v2i64 v2i64_a = {1, 2};
v2i32 v2i32_a = {1, 2};
v2i16 v2i16_a = {1, 2};
v2i8 v2i8_a = {1, 2};
v2i64_a = v2i64_a + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v2i64' (vector of 2 'long long' values) as implicit conversion would cause truncation}}
v2i64_a = v2i64_a + c;
v2i64_a = v2i64_a + b;
v2i64_a = v2i64_a + a;
v2i32_a = v2i32_a + d; // expected-warning {{implicit conversion loses integer precision: 'unsigned long long' to 'v2i32' (vector of 2 'int' values)}}
v2i32_a = v2i32_a + c; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2i32' (vector of 2 'int' values) as implicit conversion would cause truncation}}
v2i32_a = v2i32_a + b;
v2i32_a = v2i32_a + a;
v2i16_a = v2i16_a + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v2i16' (vector of 2 'short' values) as implicit conversion would cause truncation}}
v2i16_a = v2i16_a + c; // expected-warning {{implicit conversion loses integer precision: 'unsigned int' to 'v2i16' (vector of 2 'short' values)}}
v2i16_a = v2i16_a + b; // expected-error {{cannot convert between scalar type 'unsigned short' and vector type 'v2i16' (vector of 2 'short' values) as implicit conversion would cause truncation}}
v2i16_a = v2i16_a + a;
v2i8_a = v2i8_a + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v2i8' (vector of 2 'char' values) as implicit conversion would cause truncation}}
v2i8_a = v2i8_a + c; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2i8' (vector of 2 'char' values) as implicit conversion would cause truncation}}
v2i8_a = v2i8_a + b; // expected-warning {{implicit conversion loses integer precision: 'unsigned short' to 'v2i8' (vector of 2 'char' values)}}
v2i8_a = v2i8_a + a; // expected-error {{cannot convert between scalar type 'unsigned char' and vector type 'v2i8' (vector of 2 'char' values) as implicit conversion would cause truncation}}
}
void uintTestType(char a, short b, int c, long long d) {
v2u64 v2u64_a = {1, 2};
v2u32 v2u32_a = {1, 2};
v2u16 v2u16_a = {1, 2};
v2u8 v2u8_a = {1, 2};
v2u64_a = v2u64_a + d; // expected-warning {{implicit conversion changes signedness: 'long long' to 'v2u64' (vector of 2 'unsigned long long' values)}}
v2u64_a = v2u64_a + c; // expected-warning {{implicit conversion changes signedness: 'int' to 'v2u64' (vector of 2 'unsigned long long' values)}}
v2u64_a = v2u64_a + b; // expected-warning {{implicit conversion changes signedness: 'short' to 'v2u64' (vector of 2 'unsigned long long' values)}}
v2u64_a = v2u64_a + a; // expected-warning {{implicit conversion changes signedness: 'char' to 'v2u64' (vector of 2 'unsigned long long' values)}}
v2u32_a = v2u32_a + d; // expected-warning {{implicit conversion loses integer precision: 'long long' to 'v2u32' (vector of 2 'unsigned int' values)}}
v2u32_a = v2u32_a + c; // expected-warning {{implicit conversion changes signedness: 'int' to 'v2u32' (vector of 2 'unsigned int' values)}}
v2u32_a = v2u32_a + b; // expected-warning {{implicit conversion changes signedness: 'short' to 'v2u32' (vector of 2 'unsigned int' values)}}
v2u32_a = v2u32_a + a; // expected-warning {{implicit conversion changes signedness: 'char' to 'v2u32' (vector of 2 'unsigned int' values)}}
v2u16_a = v2u16_a + d; // expected-error {{cannot convert between scalar type 'long long' and vector type 'v2u16' (vector of 2 'unsigned short' values) as implicit conversion would cause truncation}}
v2u16_a = v2u16_a + c; // expected-warning {{implicit conversion loses integer precision: 'int' to 'v2u16' (vector of 2 'unsigned short' values)}}
v2u16_a = v2u16_a + b; // expected-warning {{implicit conversion changes signedness: 'short' to 'v2u16' (vector of 2 'unsigned short' values)}}
v2u16_a = v2u16_a + a; // expected-warning {{implicit conversion changes signedness: 'char' to 'v2u16' (vector of 2 'unsigned short' values)}}
v2u8_a = v2u8_a + d; // expected-error {{cannot convert between scalar type 'long long' and vector type 'v2u8' (vector of 2 'unsigned char' values) as implicit conversion would cause truncation}}
v2u8_a = v2u8_a + c; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2u8' (vector of 2 'unsigned char' values) as implicit conversion would cause truncation}}
v2u8_a = v2u8_a + b; // expected-warning {{implicit conversion loses integer precision: 'short' to 'v2u8' (vector of 2 'unsigned char' values)}}
v2u8_a = v2u8_a + a; // expected-warning {{implicit conversion changes signedness: 'char' to 'v2u8' (vector of 2 'unsigned char' values)}}
}
void uintTestTypeUnsigned(unsigned char a, unsigned short b, unsigned int c,
unsigned long long d) {
v2u64 v2u64_a = {1, 2};
v2u32 v2u32_a = {1, 2};
v2u16 v2u16_a = {1, 2};
v2u8 v2u8_a = {1, 2};
v2u64_a = v2u64_a + d;
v2u64_a = v2u64_a + c;
v2u64_a = v2u64_a + b;
v2u64_a = v2u64_a + a;
v2u32_a = v2u32_a + d; // expected-warning {{implicit conversion loses integer precision: 'unsigned long long' to 'v2u32' (vector of 2 'unsigned int' values)}}
v2u32_a = v2u32_a + c;
v2u32_a = v2u32_a + b;
v2u32_a = v2u32_a + a;
v2u16_a = v2u16_a + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v2u16' (vector of 2 'unsigned short' values) as implicit conversion would cause truncation}}
v2u16_a = v2u16_a + c; // expected-warning {{implicit conversion loses integer precision: 'unsigned int' to 'v2u16' (vector of 2 'unsigned short' values)}}
v2u16_a = v2u16_a + b;
v2u16_a = v2u16_a + a;
v2u8_a = v2u8_a + d; // expected-error {{cannot convert between scalar type 'unsigned long long' and vector type 'v2u8' (vector of 2 'unsigned char' values) as implicit conversion would cause truncation}}
v2u8_a = v2u8_a + c; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2u8' (vector of 2 'unsigned char' values) as implicit conversion would cause truncation}}
v2u8_a = v2u8_a + b; // expected-warning {{implicit conversion loses integer precision: 'unsigned short' to 'v2u8' (vector of 2 'unsigned char' values)}}
v2u8_a = v2u8_a + a;
}
void uintTestConstant(v2u64 v2u64_a, v2u32 v2u32_a, v2u16 v2u16_a,
v2u8 v2u8_a) {
v2u64_a = v2u64_a + 0xFFFFFFFFFFFFFFFF;
v2u32_a = v2u32_a + 0xFFFFFFFF;
v2u16_a = v2u16_a + 0xFFFF;
v2u8_a = v2u8_a + 0xFF;
v2u32_a = v2u32_a + 0x1FFFFFFFF; // expected-warning {{implicit conversion from 'long' to 'v2u32' (vector of 2 'unsigned int' values) changes value from 8589934591 to 4294967295}}
v2u16_a = v2u16_a + 0x1FFFF; // expected-warning {{implicit conversion from 'int' to 'v2u16' (vector of 2 'unsigned short' values) changes value from 131071 to 65535}}
v2u8_a = v2u8_a + 0x1FF; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2u8' (vector of 2 'unsigned char' values) as implicit conversion would cause truncation}}
}
void intTestConstant(v2i64 v2i64_a, v2i32 v2i32_a, v2i16 v2i16_a, v2i8 v2i8_a) {
// Legal upper bounds.
v2i64_a = v2i64_a + (long long)0x7FFFFFFFFFFFFFFF;
v2i32_a = v2i32_a + (int)0x7FFFFFFF;
v2i16_a = v2i16_a + (short)0x7FFF;
v2i8_a = v2i8_a + (char)0x7F;
// Legal lower bounds.
v2i64_a = v2i64_a + (-9223372036854775807);
v2i32_a = v2i32_a + (-2147483648);
v2i16_a = v2i16_a + (-32768);
v2i8_a = v2i8_a + (-128);
// One increment/decrement more than the type can hold
v2i32_a = v2i32_a + 2147483648; // expected-warning {{implicit conversion from 'long' to 'v2i32' (vector of 2 'int' values) changes value from 2147483648 to -2147483648}}
v2i16_a = v2i16_a + 32768; // expected-warning {{implicit conversion from 'int' to 'v2i16' (vector of 2 'short' values) changes value from 32768 to -32768}}
v2i8_a = v2i8_a + 128; // expected-warning {{implicit conversion from 'int' to 'v2i8' (vector of 2 'char' values) changes value from 128 to -128}}
v2i32_a = v2i32_a + (-2147483649); // expected-warning {{implicit conversion from 'long' to 'v2i32' (vector of 2 'int' values) changes value from -2147483649 to 2147483647}}
v2i16_a = v2i16_a + (-32769); // expected-warning {{implicit conversion from 'int' to 'v2i16' (vector of 2 'short' values) changes value from -32769 to 32767}}
v2i8_a = v2i8_a + (-129); // expected-error {{cannot convert between scalar type 'int' and vector type 'v2i8' (vector of 2 'char' values) as implicit conversion would cause truncation}}
}
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