0f1c1be196
We have a new policy in place making links to private resources something we try to avoid in source and test files. Normally, we'd organically switch to the new policy rather than make a sweeping change across a project. However, Clang is in a somewhat special circumstance currently: recently, I've had several new contributors run into rdar links around test code which their patch was changing the behavior of. This turns out to be a surprisingly bad experience, especially for newer folks, for a handful of reasons: not understanding what the link is and feeling intimidated by it, wondering whether their changes are actually breaking something important to a downstream in some way, having to hunt down strangers not involved with the patch to impose on them for help, accidental pressure from asking for potentially private IP to be made public, etc. Because folks run into these links entirely by chance (through fixing bugs or working on new features), there's not really a set of problematic links to focus on -- all of the links have basically the same potential for causing these problems. As a result, this is an omnibus patch to remove all such links. This was not a mechanical change; it was done by manually searching for rdar, radar, radr, and other variants to find all the various problematic links. From there, I tried to retain or reword the surrounding comments so that we would lose as little context as possible. However, because most links were just a plain link with no supporting context, the majority of the changes are simple removals. Differential Review: https://reviews.llvm.org/D158071
83 lines
3.5 KiB
C
83 lines
3.5 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(void)
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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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typedef float float16 __attribute__((__vector_size__(16)));
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typedef signed int vSInt32 __attribute__((__vector_size__(16)));
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typedef unsigned int vUInt32 __attribute__((__vector_size__(16)));
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void f4(void) {
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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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f2 += d; // expected-error {{cannot convert between scalar type 'double' and vector type 'float2' (vector of 2 'float' values) as implicit conversion would cause truncation}}
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d += f2; // expected-error {{assigning to 'double' from incompatible type 'float2' (vector of 2 'float' values)}}
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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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// 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(void) {
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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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void f6(vSInt32 a0) {
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vUInt32 counter = (float16){0.0f, 0.0f, 0.0f, 0.0f}; // expected-warning {{incompatible vector types initializing 'vUInt32' (vector of 4 'unsigned int' values) with an expression of type 'float16' (vector of 4 'float' values)}}
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counter -= a0;
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}
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