forked from OSchip/llvm-project
208 lines
8.8 KiB
C
208 lines
8.8 KiB
C
// RUN: %clang_cc1 -fsyntax-only %s 2>&1 | FileCheck %s -strict-whitespace
|
|
|
|
#define M1(x) x
|
|
#define M2 1;
|
|
void foo() {
|
|
M1(
|
|
M2);
|
|
// CHECK: {{.*}}:7:{{[0-9]+}}: warning: expression result unused
|
|
// CHECK: {{.*}}:4:{{[0-9]+}}: note: expanded from macro 'M2'
|
|
// CHECK: {{.*}}:3:{{[0-9]+}}: note: expanded from macro 'M1'
|
|
}
|
|
|
|
#define A 1
|
|
#define B A
|
|
#define C B
|
|
void bar() {
|
|
C;
|
|
// CHECK: {{.*}}:17:3: warning: expression result unused
|
|
// CHECK: {{.*}}:15:11: note: expanded from macro 'C'
|
|
// CHECK: {{.*}}:14:11: note: expanded from macro 'B'
|
|
// CHECK: {{.*}}:13:11: note: expanded from macro 'A'
|
|
}
|
|
|
|
// rdar://7597492
|
|
#define sprintf(str, A, B) \
|
|
__builtin___sprintf_chk (str, 0, 42, A, B)
|
|
|
|
void baz(char *Msg) {
|
|
sprintf(Msg, " sizeof FoooLib : =%3u\n", 12LL);
|
|
}
|
|
|
|
|
|
// PR9279: comprehensive tests for multi-level macro back traces
|
|
#define macro_args1(x) x
|
|
#define macro_args2(x) macro_args1(x)
|
|
#define macro_args3(x) macro_args2(x)
|
|
|
|
#define macro_many_args1(x, y, z) y
|
|
#define macro_many_args2(x, y, z) macro_many_args1(x, y, z)
|
|
#define macro_many_args3(x, y, z) macro_many_args2(x, y, z)
|
|
|
|
void test() {
|
|
macro_args3(11);
|
|
// CHECK: {{.*}}:43:15: warning: expression result unused
|
|
// Also check that the 'caret' printing agrees with the location here where
|
|
// its easy to FileCheck.
|
|
// CHECK-NEXT: macro_args3(11);
|
|
// CHECK-NEXT: {{^ \^~}}
|
|
// CHECK: {{.*}}:36:36: note: expanded from macro 'macro_args3'
|
|
// CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2'
|
|
// CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1'
|
|
|
|
macro_many_args3(
|
|
1,
|
|
2,
|
|
3);
|
|
// CHECK: {{.*}}:55:5: warning: expression result unused
|
|
// CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
|
|
// CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
|
|
// CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
|
|
|
|
macro_many_args3(
|
|
1,
|
|
M2,
|
|
3);
|
|
// CHECK: {{.*}}:64:5: warning: expression result unused
|
|
// CHECK: {{.*}}:4:12: note: expanded from macro 'M2'
|
|
// CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
|
|
// CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
|
|
// CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
|
|
|
|
macro_many_args3(
|
|
1,
|
|
macro_args2(22),
|
|
3);
|
|
// CHECK: {{.*}}:74:17: warning: expression result unused
|
|
// This caret location needs to be printed *inside* a different macro's
|
|
// arguments.
|
|
// CHECK-NEXT: macro_args2(22),
|
|
// CHECK-NEXT: {{^ \^~}}
|
|
// CHECK: {{.*}}:35:36: note: expanded from macro 'macro_args2'
|
|
// CHECK: {{.*}}:34:24: note: expanded from macro 'macro_args1'
|
|
// CHECK: {{.*}}:40:55: note: expanded from macro 'macro_many_args3'
|
|
// CHECK: {{.*}}:39:55: note: expanded from macro 'macro_many_args2'
|
|
// CHECK: {{.*}}:38:35: note: expanded from macro 'macro_many_args1'
|
|
}
|
|
|
|
#define variadic_args1(x, y, ...) y
|
|
#define variadic_args2(x, ...) variadic_args1(x, __VA_ARGS__)
|
|
#define variadic_args3(x, y, ...) variadic_args2(x, y, __VA_ARGS__)
|
|
|
|
void test2() {
|
|
variadic_args3(1, 22, 3, 4);
|
|
// CHECK: {{.*}}:93:21: warning: expression result unused
|
|
// CHECK-NEXT: variadic_args3(1, 22, 3, 4);
|
|
// CHECK-NEXT: {{^ \^~}}
|
|
// CHECK: {{.*}}:90:53: note: expanded from macro 'variadic_args3'
|
|
// CHECK: {{.*}}:89:50: note: expanded from macro 'variadic_args2'
|
|
// CHECK: {{.*}}:88:35: note: expanded from macro 'variadic_args1'
|
|
}
|
|
|
|
#define variadic_pasting_args1(x, y, z) y
|
|
#define variadic_pasting_args2(x, ...) variadic_pasting_args1(x ## __VA_ARGS__)
|
|
#define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__)
|
|
#define variadic_pasting_args3(x, y, ...) variadic_pasting_args2(x, y, __VA_ARGS__)
|
|
#define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__)
|
|
|
|
void test3() {
|
|
variadic_pasting_args3(1, 2, 3, 4);
|
|
// CHECK: {{.*}}:109:32: warning: expression result unused
|
|
// CHECK: {{.*}}:105:72: note: expanded from macro 'variadic_pasting_args3'
|
|
// CHECK: {{.*}}:103:68: note: expanded from macro 'variadic_pasting_args2'
|
|
// CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1'
|
|
|
|
variadic_pasting_args3a(1, 2, 3, 4);
|
|
// CHECK: {{.*}}:115:3: warning: expression result unused
|
|
// CHECK-NEXT: variadic_pasting_args3a(1, 2, 3, 4);
|
|
// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}
|
|
// CHECK: {{.*}}:106:44: note: expanded from macro 'variadic_pasting_args3a'
|
|
// CHECK-NEXT: #define variadic_pasting_args3a(x, y, ...) variadic_pasting_args2a(x, y, __VA_ARGS__)
|
|
// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~}}
|
|
// CHECK: {{.*}}:104:70: note: expanded from macro 'variadic_pasting_args2a'
|
|
// CHECK-NEXT: #define variadic_pasting_args2a(x, y, ...) variadic_pasting_args1(x, y ## __VA_ARGS__)
|
|
// CHECK-NEXT: {{ \^~~~~~~~~~~~~~~~}}
|
|
// CHECK: {{.*}}:102:41: note: expanded from macro 'variadic_pasting_args1'
|
|
// CHECK-NEXT: #define variadic_pasting_args1(x, y, z) y
|
|
// CHECK-NEXT: {{ \^}}
|
|
}
|
|
|
|
#define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
|
|
int test4 = BAD_CONDITIONAL_OPERATOR+BAD_CONDITIONAL_OPERATOR;
|
|
// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
|
|
// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
|
|
// CHECK-NEXT: {{^ \^}}
|
|
// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
|
|
// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
|
|
// CHECK-NEXT: {{^ \^}}
|
|
// CHECK: {{.*}}:130:39: note: expanded from macro 'BAD_CONDITIONAL_OPERATOR'
|
|
// CHECK-NEXT: #define BAD_CONDITIONAL_OPERATOR (2<3)?2:3
|
|
// CHECK-NEXT: {{^ ~~~~~\^~~~}}
|
|
|
|
#define QMARK ?
|
|
#define TWOL (2<
|
|
#define X 1+TWOL 3) QMARK 4:5
|
|
int x = X;
|
|
// CHECK: {{.*}}:145:9: note: place parentheses around the '+' expression to silence this warning
|
|
// CHECK-NEXT: int x = X;
|
|
// CHECK-NEXT: {{^ \^}}
|
|
// CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X'
|
|
// CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5
|
|
// CHECK-NEXT: {{^ ~~~~~~~~~ \^}}
|
|
// CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK'
|
|
// CHECK-NEXT: #define QMARK ?
|
|
// CHECK-NEXT: {{^ \^}}
|
|
// CHECK-NEXT: {{.*}}:145:9: note: place parentheses around the '?:' expression to evaluate it first
|
|
// CHECK-NEXT: int x = X;
|
|
// CHECK-NEXT: {{^ \^}}
|
|
// CHECK-NEXT: {{.*}}:144:21: note: expanded from macro 'X'
|
|
// CHECK-NEXT: #define X 1+TWOL 3) QMARK 4:5
|
|
// CHECK-NEXT: {{^ ~~~~~~~~\^~~~~~~~~}}
|
|
|
|
#define ONEPLUS 1+
|
|
#define Y ONEPLUS (2<3) QMARK 4:5
|
|
int y = Y;
|
|
// CHECK: {{.*}}:164:9: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first
|
|
// CHECK-NEXT: int y = Y;
|
|
// CHECK-NEXT: {{^ \^}}
|
|
// CHECK-NEXT: {{.*}}:163:25: note: expanded from macro 'Y'
|
|
// CHECK-NEXT: #define Y ONEPLUS (2<3) QMARK 4:5
|
|
// CHECK-NEXT: {{^ ~~~~~~~~~~~~~ \^}}
|
|
// CHECK-NEXT: {{.*}}:142:15: note: expanded from macro 'QMARK'
|
|
// CHECK-NEXT: #define QMARK ?
|
|
// CHECK-NEXT: {{^ \^}}
|
|
|
|
// PR14399
|
|
void iequals(int,int,int);
|
|
void foo_aa()
|
|
{
|
|
#define /* */ BARC(c, /* */b, a, ...) (a+b+/* */c + __VA_ARGS__ +0)
|
|
iequals(__LINE__, BARC(4,3,2,6,8), 8);
|
|
}
|
|
// CHECK: {{.*}}:180:21: warning: expression result unused
|
|
// CHECK-NEXT: iequals(__LINE__, BARC(4,3,2,6,8), 8);
|
|
// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~}}
|
|
// CHECK-NEXT: {{.*}}:179:51: note: expanded from macro 'BARC'
|
|
// CHECK-NEXT: #define /* */ BARC(c, /* */b, a, ...) (a+b+/* */c + __VA_ARGS__ +0)
|
|
// CHECK-NEXT: {{^ ~~~~~~~~~~ \^}}
|
|
|
|
#define APPEND2(NUM, SUFF) -1 != NUM ## SUFF
|
|
#define APPEND(NUM, SUFF) APPEND2(NUM, SUFF)
|
|
#define UTARG_MAX_U APPEND (MAX_UINT, UL)
|
|
#define MAX_UINT 18446744073709551615
|
|
#if UTARG_MAX_U
|
|
#endif
|
|
|
|
// CHECK: {{.*}}:193:5: warning: left side of operator converted from negative value to unsigned: -1 to 18446744073709551615
|
|
// CHECK-NEXT: #if UTARG_MAX_U
|
|
// CHECK-NEXT: {{^ \^~~~~~~~~~~}}
|
|
// CHECK-NEXT: {{.*}}:191:21: note: expanded from macro 'UTARG_MAX_U'
|
|
// CHECK-NEXT: #define UTARG_MAX_U APPEND (MAX_UINT, UL)
|
|
// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~~~~}}
|
|
// CHECK-NEXT: {{.*}}:190:27: note: expanded from macro 'APPEND'
|
|
// CHECK-NEXT: #define APPEND(NUM, SUFF) APPEND2(NUM, SUFF)
|
|
// CHECK-NEXT: {{^ \^~~~~~~~~~~~~~~~~~}}
|
|
// CHECK-NEXT: {{.*}}:189:31: note: expanded from macro 'APPEND2'
|
|
// CHECK-NEXT: #define APPEND2(NUM, SUFF) -1 != NUM ## SUFF
|
|
// CHECK-NEXT: {{^ ~~ \^ ~~~~~~~~~~~}}
|