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25 lines
901 B
25 lines
901 B
4 months ago
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// Verify that we do check for constraints in device-side inline
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// assembly. Passing an illegal input/output constraint and look
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// for corresponding error
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// RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -fcuda-is-device -verify %s
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__attribute__((device)) void df() {
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short h;
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int a;
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// asm with PTX constraints. Some of them are PTX-specific.
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__asm__("output constraints"
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: "=h"(h), // .u16 reg, OK
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"=a"(a) // expected-error {{invalid output constraint '=a' in asm}}
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: // None
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);
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__asm__("input constraints"
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: // None
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: "f"(0.0), // .f32 reg, OK
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"d"(0.0), // .f64 reg, OK
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"h"(0), // .u16 reg, OK
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"r"(0), // .u32 reg, OK
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"l"(0), // .u64 reg, OK
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"a"(0) // expected-error {{invalid input constraint 'a' in asm}}
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);
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}
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