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37 lines
967 B
37 lines
967 B
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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