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Differential D145429

add test case
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Authored by nickdesaulniers on Mar 6 2023, 2:34 PM.
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clang/
test/
Sema/
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clang/test/Sema/inline-asm-validate.c

// RUN: %clang_cc1 -triple arm64-apple-macosx10.8.0 -fsyntax-only -verify %s // RUN: %clang_cc1 -triple arm64-apple-macosx10.8.0 -fsyntax-only -verify %s
unsigned t, r, *p; unsigned t, r, *p;
void foo (void) { void foo (void) {
__asm__ __volatile__( "stxr %w[_t], %[_r], [%[_p]]" : [_t] "=&r" (t) : [_p] "p" (p), [_r] "r" (r) : "memory"); // expected-warning{{value size does not match register size specified by the constraint and modifier}} expected-note {{use constraint modifier "w"}} __asm__ __volatile__( "stxr %w[_t], %[_r], [%[_p]]" : [_t] "=&r" (t) : [_p] "p" (p), [_r] "r" (r) : "memory"); // expected-warning{{value size does not match register size specified by the constraint and modifier}} expected-note {{use constraint modifier "w"}}
// Ensure we accept pointer and non-pointer arguments to "p" constrained // Ensure we accept pointer and non-pointer arguments to "p" constrained
// inputs. // inputs.
asm (""::"p"(t), "p"(p)); asm (""::"p"(t), "p"(p));
// TODO: Ensure we accept p output constraints.
asm ("":"=p"(t)); // expected-error{{invalid output constraint '=p' in asm}}
asm ("":"=p"(p)); // expected-error{{invalid output constraint '=p' in asm}}
} }