forked from OSchip/llvm-project
77 lines
3.1 KiB
C
77 lines
3.1 KiB
C
// RUN: %clang_cc1 -fsyntax-only %s -verify -Wvector-conversion
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typedef long long t1 __attribute__ ((vector_size (8)));
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typedef char t2 __attribute__ ((vector_size (16)));
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typedef float t3 __attribute__ ((vector_size (16)));
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typedef short s2 __attribute__ ((vector_size(4)));
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typedef enum { Evalue = 0x10000 } E;
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void f()
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{
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t1 v1;
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t2 v2;
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t3 v3;
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s2 v4;
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E e;
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e = (E)v4;
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v4 = (s2)e;
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v2 = (t2)v1; // expected-error {{invalid conversion between vector type \
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't2' (vector of 16 'char' values) and 't1' (vector of 1 'long long' value) of different size}}
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v1 = (t1)v2; // expected-error {{invalid conversion between vector type \
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't1' (vector of 1 'long long' value) and 't2' (vector of 16 'char' values) of different size}}
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v3 = (t3)v2;
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v1 = (t1)(char *)10; // expected-error {{invalid conversion between vector \
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type 't1' (vector of 1 'long long' value) and scalar type 'char *'}}
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v1 = (t1)(long long)10;
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v1 = (t1)(short)10; // expected-error {{invalid conversion between vector \
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type 't1' (vector of 1 'long long' value) and integer type 'short' of different size}}
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long long r1 = (long long)v1;
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short r2 = (short)v1; // expected-error {{invalid conversion between vector \
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type 't1' (vector of 1 'long long' value) and integer type 'short' of different size}}
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char *r3 = (char *)v1; // expected-error {{invalid conversion between vector\
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type 't1' (vector of 1 'long long' value) and scalar type 'char *'}}
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}
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void f2(t2 X); // expected-note{{passing argument to parameter 'X' here}}
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void f3(t3 Y) {
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f2(Y); // expected-warning {{incompatible vector types passing 't3' (vector of 4 'float' values) to parameter of type 't2' (vector of 16 'char' values)}}
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}
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typedef float float2 __attribute__ ((vector_size (8)));
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typedef __attribute__((vector_size(8))) double float64x1_t;
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typedef __attribute__((vector_size(16))) double float64x2_t;
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float64x1_t vget_low_f64(float64x2_t __p0);
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void f4() {
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float2 f2;
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double d, a, b, c;
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float64x2_t v = {0.0, 1.0};
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// FIXME: These diagnostics are inaccurate: should complain that 'double' to vector 'float2' involves truncation
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f2 += d; // expected-error {{cannot convert between vector values of different size ('float2' (vector of 2 'float' values) and 'double')}}
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d += f2; // expected-error {{cannot convert between vector values of different size}}
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a = 3.0 + vget_low_f64(v);
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b = vget_low_f64(v) + 3.0;
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c = vget_low_f64(v);
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c -= vget_low_f64(v);
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// LAX conversions between scalar and vector types require same size and one element sized vectors.
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d = f2; // expected-error {{assigning to 'double' from incompatible type 'float2'}}
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d = d + f2; // expected-error {{assigning to 'double' from incompatible type 'float2'}}
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}
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// rdar://15931426
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// Don't permit a lax conversion to and from a pointer type.
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typedef short short_sizeof_pointer __attribute__((vector_size(sizeof(void*))));
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void f5() {
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short_sizeof_pointer v;
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void *ptr;
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v = ptr; // expected-error-re {{assigning to 'short_sizeof_pointer' (vector of {{[0-9]+}} 'short' values) from incompatible type 'void *'}}
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ptr = v; // expected-error {{assigning to 'void *' from incompatible type 'short_sizeof_pointer'}}
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}
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