derek.holloway
7502bf64a4
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41 lines
2.6 KiB
C
41 lines
2.6 KiB
C
// RUN: %clang_cc1 -triple thumbv6m -fsyntax-only -verify %s
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// Armv6-M does not support exclusive loads/stores at all, so all uses of
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// __builtin_arm_ldrex[d] and __builtin_arm_strex[d] is forbidden.
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int test_ldrex(char *addr) {
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int sum = 0;
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sum += __builtin_arm_ldrex(addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrex((short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrex((int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrex((long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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return sum;
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}
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int test_strex(char *addr) {
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int res = 0;
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res |= __builtin_arm_strex(4, addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strex(42, (short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strex(42, (int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strex(42, (long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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return res;
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}
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int test_ldrexd(char *addr) {
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int sum = 0;
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sum += __builtin_arm_ldrexd(addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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return sum;
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}
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int test_strexd(char *addr) {
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int res = 0;
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res |= __builtin_arm_strexd(4, addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(42, (short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(42, (int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(42, (long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}
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return res;
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}
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