Author: das
Date: Mon Dec 6 00:19:56 2010
New Revision: 216223
URL: http://svn.freebsd.org/changeset/base/216223
Log:
Work around gcc constant folding bugs.
Modified:
head/tools/regression/lib/msun/test-lrint.c
Modified: head/tools/regression/lib/msun/test-lrint.c
==============================================================================
--- head/tools/regression/lib/msun/test-lrint.c Mon Dec 6 00:02:49 2010
(r216222)
+++ head/tools/regression/lib/msun/test-lrint.c Mon Dec 6 00:19:56 2010
(r216223)
@@ -41,9 +41,14 @@ __FBSDID("$FreeBSD$");
#include <ieeefp.h>
#endif
+/*
+ * XXX The volatile here is to avoid gcc's bogus constant folding and work
+ * around the lack of support for the FENV_ACCESS pragma.
+ */
#define test(func, x, result, excepts) do {
\
+ volatile double _d = x; \
assert(feclearexcept(FE_ALL_EXCEPT) == 0); \
- assert((func)(x) == (result) || fetestexcept(FE_INVALID)); \
+ assert((func)(_d) == (result) || fetestexcept(FE_INVALID)); \
assert(fetestexcept(FE_ALL_EXCEPT) == (excepts)); \
} while (0)
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