https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92858
Bug ID: 92858
Summary: [10 regression] spurious backslashes around switch
string in warning messages
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: minor
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: ebotcazou at gcc dot gnu.org
Target Milestone: ---
The switch string is printed between a pair of backslashes in warning messages,
which doesn't seem to be a progress. Consider the following C file:
int A[128];
inline void
fill (int *a, int n)
{
for (int i = 0; i < n; i++)
a[i] = i * 2 - n;
}
int get (int i)
{
fill (A, 128);
return A[i];
}
compiled at -O -fno-early-inlining --param max-inline-insns-single=0 -Winline:
t.c: In function 'get':
t.c:4:1: warning: inlining failed in call to 'fill': --param
max-inline-insns-single limit reached [\-Winline\]
4 | fill (int *a, int n)
| ^~~~
t.c:12:3: note: called from here
12 | fill (A, 128);
| ^~~~~~~~~~~~~
With the GCC 9 compiler, the message is:
t.c: In function 'get':
t.c:4:1: warning: inlining failed in call to 'fill': --param
max-inline-insns-single limit reached [-Winline]
4 | fill (int *a, int n)
| ^~~~
t.c:12:3: note: called from here
12 | fill (A, 128);
| ^~~~~~~~~~~~~
which looks fine.
