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[PATCH 08/13] testsuite: Fix return_complex2 vs excessive precision
- From: Richard Henderson <rth at twiddle dot net>
- To: libffi-discuss at sourceware dot org
- Date: Fri, 7 Nov 2014 16:30:35 +0100
- Subject: [PATCH 08/13] testsuite: Fix return_complex2 vs excessive precision
- Authentication-results: sourceware.org; auth=none
- References: <1415374240-1792-1-git-send-email-rth at twiddle dot net>
Use the previously computed rc2 to validate, rather than
recomputing a floating point result with excess precision.
---
testsuite/libffi.call/return_complex2.inc | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/testsuite/libffi.call/return_complex2.inc b/testsuite/libffi.call/return_complex2.inc
index dad4a0f..265170b 100644
--- a/testsuite/libffi.call/return_complex2.inc
+++ b/testsuite/libffi.call/return_complex2.inc
@@ -2,10 +2,14 @@
#include "ffitest.h"
#include <complex.h>
-static _Complex T_C_TYPE return_c(_Complex T_C_TYPE c1, _Complex T_C_TYPE c2, unsigned int in3, _Complex T_C_TYPE c4)
+_Complex T_C_TYPE
+return_c(_Complex T_C_TYPE c1, _Complex T_C_TYPE c2,
+ unsigned int in3, _Complex T_C_TYPE c4)
{
- return c1 + c2 + in3 + c4;
+ volatile _Complex T_C_TYPE r = c1 + c2 + in3 + c4;
+ return r;
}
+
int main (void)
{
ffi_cif cif;
@@ -35,6 +39,6 @@ int main (void)
printf ("%f,%fi vs %f,%fi\n",
T_CONV creal (rc), T_CONV cimag (rc),
T_CONV creal (rc2), T_CONV cimag (rc2));
- CHECK(rc == c1 + c2 + in3 + c4);
+ CHECK(rc == rc2);
exit(0);
}
--
1.9.3