derek.holloway
7502bf64a4
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51 lines
3.4 KiB
C
51 lines
3.4 KiB
C
// RUN: %clang_cc1 -triple thumbv7m -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple thumbv8m.main -fsyntax-only -verify %s
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// RUN: %clang_cc1 -triple armv8.1m.main -fsyntax-only -verify %s
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// All these architecture versions provide 1-, 2- or 4-byte exclusive accesses,
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// but don't have the LDREXD instruction which takes two operand registers and
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// performs an 8-byte exclusive access. So the calls with a pointer to long
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// long are rejected.
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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);
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sum += __builtin_arm_ldrex((short *)addr);
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sum += __builtin_arm_ldrex((int *)addr);
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sum += __builtin_arm_ldrex((long long *)addr); // expected-error {{address argument to load or store exclusive builtin must be a pointer to 1,2 or 4 byte type}}
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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);
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res |= __builtin_arm_strex(42, (short *)addr);
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res |= __builtin_arm_strex(42, (int *)addr);
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res |= __builtin_arm_strex(42, (long long *)addr); // expected-error {{address argument to load or store exclusive builtin must be a pointer to 1,2 or 4 byte type}}
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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 {{eight-byte load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((short *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((int *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((long long *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((unsigned long long *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((float *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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sum += __builtin_arm_ldrexd((double *)addr); // expected-error {{eight-byte 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 {{eight-byte load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(42, (short *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(42, (int *)addr); // expected-error {{eight-byte 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 {{eight-byte load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(42, (unsigned long long *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(2.71828f, (float *)addr); // expected-error {{eight-byte load and store exclusive builtins are not available on this architecture}}
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res |= __builtin_arm_strexd(3.14159, (double *)addr); // expected-error {{eight-byte 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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