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/* PR c/80116 */
/* { dg-options "-Wmultistatement-macros" } */
/* { dg-do compile } */
#define SWAP(x, y) \
tmp = x; /* { dg-warning "macro expands to multiple statements" } */ \
x = y; \
y = tmp
#define M1 \
while (x) /* { dg-message "not guarded by this 'while' claus" } */ \
SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
#define M2 \
while (x) \
x++
#define M3 \
while (x) \
x++;;
#define M4 \
while (x) /* { dg-message "not guarded by this 'while' claus" } */ \
L1: \
SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
#define INC \
x++;;
int x, y, tmp;
void
fn0 (void)
{
while (x) /* { dg-message "not guarded by this 'while' claus" } */
SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
while (x) /* { dg-message "not guarded by this 'while' claus" } */
L:
SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
goto L;
}
void
fn1 (void)
{
M1; /* { dg-message "in expansion of macro .M1." } */
M2;
M3;
M4; /* { dg-message "in expansion of macro .M4." } */
goto L1;
}
void
fn2 (void)
{
while (x)
INC
while (x)
({ x = 10; x++; });
}
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