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