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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 STUFF \
if (0) x = y
#define STUFF2 \
if (0) x = y; x++
#define STUFF3 \
if (x) /* { dg-message "not guarded by this 'if' clause" } */ \
SWAP(x, y) /* { dg-message "in expansion of macro .SWAP." } */
#define SET(X, Y) \
(X) = (Y)
#define STUFF4 \
if (x) \
SET(x, y); \
SET(x, y)
#define STUFF5 \
{ tmp = x; x = y; }
#define STUFF6 \
x++;;
int x, y, tmp;
void
fn1 (void)
{
if (x) /* { dg-message "not guarded by this 'if' clause" } */
SWAP(x, y); /* { dg-message "in expansion of macro .SWAP." } */
}
void
fn2 (void)
{
SWAP(x, y);
}
void
fn3 (void)
{
if (x)
{
SWAP(x, y);
}
}
void
fn4 (void)
{
if (x)
({ x = 10; x++; });
}
void
fn5 (void)
{
if (x) /* { dg-message "not guarded by this 'if' clause" } */
L1:
SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
goto L1;
}
void
fn6 (void)
{
if (x)
SET (x, y);
SET (tmp, x);
}
void
fn7 (void)
{
STUFF;
}
void
fn8 (void)
{
STUFF2;
}
void
fn9 (void)
{
STUFF3; /* { dg-message "in expansion of macro .STUFF3." } */
}
void
fn10 (void)
{
STUFF4;
}
void
fn11 (void)
{
if (x)
STUFF5;
}
void
fn12 (void)
{
if (x)
STUFF6;
}
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