| 1 | // Verify that we do check for constraints in device-side inline |
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| 2 | // assembly. Passing an illegal input/output constraint and look |
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| 3 | // for corresponding error |
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| 4 | // RUN: %clang_cc1 -triple nvptx-unknown-cuda -fsyntax-only -fcuda-is-device -verify %s |
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| 5 | |
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| 6 | __attribute__((device)) void df() { |
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| 7 | short h; |
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| 8 | int a; |
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| 9 | // asm with PTX constraints. Some of them are PTX-specific. |
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| 10 | __asm__("output constraints" |
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| 11 | : "=h"(h), // .u16 reg, OK |
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| 12 | "=a"(a) // expected-error {{invalid output constraint '=a' in asm}} |
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| 13 | : // None |
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| 14 | ); |
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| 15 | __asm__("input constraints" |
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| 16 | : // None |
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| 17 | : "f"(0.0), // .f32 reg, OK |
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| 18 | "d"(0.0), // .f64 reg, OK |
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| 19 | "h"(0), // .u16 reg, OK |
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| 20 | "r"(0), // .u32 reg, OK |
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| 21 | "l"(0), // .u64 reg, OK |
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| 22 | "a"(0) // expected-error {{invalid input constraint 'a' in asm}} |
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| 23 | ); |
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| 24 | } |
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| 25 | |
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