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38 lines
967 B

commit c82f5c0ce5c1c0180fca311ceb29fd2d59da7441
Author: Joseph Myers <joseph@codesourcery.com>
Date: Wed Nov 26 00:45:19 2014 +0000
Fix warning in setjmp/jmpbug.c.
This patch fixes a "set but not used" warning in setjmp/jmpbug.c. A
variable is used only to store the result of alloca. A cast to void
is added to avoid the warning, and the variable is made volatile to
ensure the call to alloca isn't optimized away for being unused.
Tested for x86_64.
* setjmp/jmpbug.c (test): Make foo volatile and cast it to
void.
diff --git a/setjmp/jmpbug.c b/setjmp/jmpbug.c
index 125977b2f719dbeb..8594c5a8a782b218 100644
--- a/setjmp/jmpbug.c
+++ b/setjmp/jmpbug.c
@@ -14,7 +14,7 @@ static void
test (int x)
{
jmp_buf buf;
- char *foo;
+ char *volatile foo;
int arr[100];
arr[77] = x;
@@ -25,6 +25,7 @@ test (int x)
}
foo = (char *) alloca (128);
+ (void) foo;
sub5 (buf);
}