forked from OSchip/llvm-project
20 lines
838 B
C
20 lines
838 B
C
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// RUN: %clang_cc1 -triple x86_64-apple-macos10.7.0 -fsyntax-only -verify -Wconversion %s
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typedef __attribute__((ext_vector_type(4))) char char4;
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typedef __attribute__((ext_vector_type(4))) short short4;
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typedef __attribute__((ext_vector_type(1))) float float1;
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static void test() {
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char4 vc4;
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float f;
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// Not allowed. There's no splatting conversion between float and int vector,
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// and we don't want to bitcast f to vector-of-char (as would happen with the
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// old-style vector types).
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vc4 += f; // expected-error {{cannot convert between vector values of different size}}
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short4 vs4;
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long long ll;
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// This one is OK; we don't re-interpret ll as short4, rather we splat its
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// value, which should produce a warning about clamping.
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vs4 += ll; // expected-warning {{implicit conversion loses integer precision}}
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}
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