[rtems commit] libtests/complex,math: Prevent optimizations

Sebastian Huber sebh at rtems.org
Mon Dec 1 07:25:37 UTC 2014


Module:    rtems
Branch:    master
Commit:    80d99aa20cd0e8fa519c3fe1e4e7402931dfa4cb
Changeset: http://git.rtems.org/rtems/commit/?id=80d99aa20cd0e8fa519c3fe1e4e7402931dfa4cb

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Dec  1 08:20:55 2014 +0100

libtests/complex,math: Prevent optimizations

For constant arguments GCC calculates the values of the math library
functions at compile-time.

close #1741

---

 testsuites/libtests/complex/docomplex.h |   4 +-
 testsuites/libtests/math/domath.h       | 272 ++++++++++++++++++++++----------
 2 files changed, 195 insertions(+), 81 deletions(-)

diff --git a/testsuites/libtests/complex/docomplex.h b/testsuites/libtests/complex/docomplex.h
index 96ce9eb..c844cc0 100644
--- a/testsuites/libtests/complex/docomplex.h
+++ b/testsuites/libtests/complex/docomplex.h
@@ -25,11 +25,13 @@
 
 extern void FUNC(docomplex) (void);
 
+volatile complex FTYPE ca, cb;
+
 void
 FUNC(docomplex) (void)
 {
 #ifndef PROVIDE_EMPTY_FUNC
-  complex FTYPE ca, cb, cc;
+  complex FTYPE cc;
   FTYPE f1;
 
   ca = 1.0 + 1.0 * I;
diff --git a/testsuites/libtests/math/domath.h b/testsuites/libtests/math/domath.h
index 4915577..1f841fb 100644
--- a/testsuites/libtests/math/domath.h
+++ b/testsuites/libtests/math/domath.h
@@ -33,6 +33,14 @@
 
 extern void FUNC(domath) (void);
 
+volatile int ia;
+
+volatile FTYPE fa;
+
+volatile FTYPE fb;
+
+volatile FTYPE fc;
+
 void
 FUNC(domath) (void)
 {
@@ -42,252 +50,356 @@ FUNC(domath) (void)
 
   int i1;
 
-  f1 = FUNC(acos) (0.0);
+  fa = 0.0;
+  f1 = FUNC(acos) (fa);
   fprintf( stdout, STR(acos) "          : " PRI "\n", f1);
 
-  f1 = FUNC(acosh) (0.0);
+  fa = 0.0;
+  f1 = FUNC(acosh) (fa);
   fprintf( stdout, STR(acosh) "         : " PRI "\n", f1);
 
-  f1 = FUNC(asin) (1.0);
+  fa = 1.0;
+  f1 = FUNC(asin) (fa);
   fprintf( stdout, STR(asin) "          : " PRI "\n", f1);
 
-  f1 = FUNC(asinh) (1.0);
+  fa = 1.0;
+  f1 = FUNC(asinh) (fa);
   fprintf( stdout, STR(asinh) "         : " PRI "\n", f1);
 
-  f1 = FUNC(atan) (M_PI_4);
+  fa = M_PI_4;
+  f1 = FUNC(atan) (fa);
   fprintf( stdout, STR(atan) "          : " PRI "\n", f1);
 
-  f1 = FUNC(atan2) (2.3, 2.3);
+  fa = 2.3;
+  fb = 2.3;
+  f1 = FUNC(atan2) (fa, fb);
   fprintf( stdout, STR(atan2) "         : " PRI "\n", f1);
 
-  f1 = FUNC(atanh) (1.0);
+  fa = 1.0;
+  f1 = FUNC(atanh) (fa);
   fprintf( stdout, STR(atanh) "         : " PRI "\n", f1);
 
-  f1 = FUNC(cbrt) (27.0);
+  fa = 27.0;
+  f1 = FUNC(cbrt) (fa);
   fprintf( stdout, STR(cbrt) "          : " PRI "\n", f1);
 
-  f1 = FUNC(ceil) (3.5);
+  fa = 3.5;
+  f1 = FUNC(ceil) (fa);
   fprintf( stdout, STR(ceil) "          : " PRI "\n", f1);
 
-  f1 = FUNC(copysign) (3.5, -2.5);
+  fa = 3.5;
+  fb = -2.5;
+  f1 = FUNC(copysign) (fa, fb);
   fprintf( stdout, STR(copysign) "      : " PRI "\n", f1);
 
-  f1 = FUNC(cos) (M_PI_2);
+  fa = M_PI_2;
+  f1 = FUNC(cos) (fa);
   fprintf( stdout, STR(cos) "           : " PRI "\n", f1);
 
-  f1 = FUNC(cosh) (M_PI_2);
+  fa = M_PI_2;
+  f1 = FUNC(cosh) (fa);
   fprintf( stdout, STR(cosh) "          : " PRI "\n", f1);
 
-  f1 = FUNC(erf) (42.0);
+  fa = 42.0;
+  f1 = FUNC(erf) (fa);
   fprintf( stdout, STR(erf) "           : " PRI "\n", f1);
 
-  f1 = FUNC(erfc) (42.0);
+  fa = 42.0;
+  f1 = FUNC(erfc) (fa);
   fprintf( stdout, STR(erfc) "          : " PRI "\n", f1);
 
-  f1 = FUNC(exp) (0.42);
+  fa = 0.42;
+  f1 = FUNC(exp) (fa);
   fprintf( stdout, STR(exp) "           : " PRI "\n", f1);
 
-  f1 = FUNC(exp2) (0.42);
+  fa = 0.42;
+  f1 = FUNC(exp2) (fa);
   fprintf( stdout, STR(exp2) "          : " PRI "\n", f1);
 
-  f1 = FUNC(expm1) (0.00042);
+  fa = 0.00042;
+  f1 = FUNC(expm1) (fa);
   fprintf( stdout, STR(expm1) "         : " PRI "\n", f1);
 
-  f1 = FUNC(fabs) (-1.123);
+  fa = -1.123;
+  f1 = FUNC(fabs) (fa);
   fprintf( stdout, STR(fabs) "          : " PRI "\n", f1);
 
-  f1 = FUNC(fdim) (1.123, 2.123);
+  fa = 1.123;
+  fb = 1.123;
+  f1 = FUNC(fdim) (fa, fb);
   fprintf( stdout, STR(fdim) "          : " PRI "\n", f1);
 
-  f1 = FUNC(floor) (0.5);
+  fa = 0.5;
+  f1 = FUNC(floor) (fa);
   fprintf( stdout, STR(floor) "         : " PRI "\n", f1);
-  f1 = FUNC(floor) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(floor) (fa);
   fprintf( stdout, STR(floor) "         : " PRI "\n", f1);
 
-  f1 = FUNC(fma) (2.1, 2.2, 3.01);
+  fa = 2.1;
+  fb = 2.2;
+  fc = 3.01;
+  f1 = FUNC(fma) (fa, fb, fc);
   fprintf( stdout, STR(fma) "           : " PRI "\n", f1);
 
-  f1 = FUNC(fmax) (-0.42, 0.42);
+  fa = -0.42;
+  fb = 0.42;
+  f1 = FUNC(fmax) (fa, fb);
   fprintf( stdout, STR(fmax) "          : " PRI "\n", f1);
 
-  f1 = FUNC(fmin) (-0.42, 0.42);
+  fa = -0.42;
+  fb = 0.42;
+  f1 = FUNC(fmin) (fa, fb);
   fprintf( stdout, STR(fmin) "          : " PRI "\n", f1);
 
-  f1 = FUNC(fmod) (42.0, 3.0);
+  fa = 42.0;
+  fb = 3.0;
+  f1 = FUNC(fmod) (fa, fb);
   fprintf( stdout, STR(fmod) "          : " PRI "\n", f1);
 
   /* no type-specific variant */
-  i1 = fpclassify(1.0);
+  fa = 1.0;
+  i1 = fpclassify(fa);
   fprintf( stdout, "fpclassify     : %d\n", i1);
 
-  f1 = FUNC(frexp) (42.0, &i1);
+  fa = 42.0;
+  f1 = FUNC(frexp) (fa, &i1);
   fprintf( stdout, STR(frexp) "         : " PRI "\n", f1);
 
-  f1 = FUNC(hypot) (42.0, 42.0);
+  fa = 42.0;
+  fb = 42.0;
+  f1 = FUNC(hypot) (fa, fb);
   fprintf( stdout, STR(hypot) "         : " PRI "\n", f1);
 
-  i1 = FUNC(ilogb) (42.0);
+  fa = 42.0;
+  i1 = FUNC(ilogb) (fa);
   fprintf( stdout, STR(ilogb) "         : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isfinite(3.0);
+  fa = 3.0;
+  i1 = isfinite(fa);
   fprintf( stdout, "isfinite       : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isgreater(3.0, 3.1);
+  fa = 3.0;
+  fb = 3.1;
+  i1 = isgreater(fa, fb);
   fprintf( stdout, "isgreater      : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isgreaterequal(3.0, 3.1);
+  fa = 3.0;
+  fb = 3.1;
+  i1 = isgreaterequal(fa, fb);
   fprintf( stdout, "isgreaterequal : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isinf(3.0);
+  fa = 3.0;
+  i1 = isinf(fa);
   fprintf( stdout, "isinf          : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isless(3.0, 3.1);
+  fa = 3.0;
+  fb = 3.1;
+  i1 = isless(fa, fb);
   fprintf( stdout, "isless         : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = islessequal(3.0, 3.1);
+  fa = 3.0;
+  fb = 3.1;
+  i1 = islessequal(fa, fb);
   fprintf( stdout, "islessequal    : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = islessgreater(3.0, 3.1);
+  fa = 3.0;
+  fb = 3.1;
+  i1 = islessgreater(fa, fb);
   fprintf( stdout, "islessgreater  : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isnan(0.0);
+  fa = 0.0;
+  i1 = isnan(fa);
   fprintf( stdout, "isnan          : %d\n", i1);
 
   /* no type-specific variant */
-  i1 = isnormal(3.0);
+  fa = 3.0;
+  i1 = isnormal(fa);
   fprintf( stdout, "isnormal       : %d\n", i1);
 
   /* no type-specific variant */
-  f1 = isunordered(1.0, 2.0);
+  fa = 1.0;
+  fb = 2.0;
+  f1 = isunordered(fa, fb);
   fprintf( stdout, "isunordered    : %d\n", i1);
 
-  f1 = FUNC(j0) (1.2);
+  fa = 1.2;
+  f1 = FUNC(j0) (fa);
   fprintf( stdout, STR(j0) "            : " PRI "\n", f1);
 
-  f1 = FUNC(j1) (1.2);
+  fa = 1.2;
+  f1 = FUNC(j1) (fa);
   fprintf( stdout, STR(j1) "            : " PRI "\n", f1);
 
-  f1 = FUNC(jn) (2,1.2);
+  ia = 2;
+  fa = 1.2;
+  f1 = FUNC(jn) (ia, fa);
   fprintf( stdout, STR(jn) "            : " PRI "\n", f1);
 
-  f1 = FUNC(ldexp) (1.2,3);
+  fa = 1.2;
+  ia = 3;
+  f1 = FUNC(ldexp) (fa, ia);
   fprintf( stdout, STR(ldexp) "         : " PRI "\n", f1);
 
-  f1 = FUNC(lgamma) (42.0);
+  fa = 42.0;
+  f1 = FUNC(lgamma) (fa);
   fprintf( stdout, STR(lgamma) "        : " PRI "\n", f1);
 
-  f1 = FUNC(llrint) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(llrint) (fa);
   fprintf( stdout, STR(llrint) "        : " PRI "\n", f1);
-  f1 = FUNC(llrint) (0.5);
+  fa = 0.5;
+  f1 = FUNC(llrint) (fa);
   fprintf( stdout, STR(llrint) "        : " PRI "\n", f1);
 
-  f1 = FUNC(llround) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(llround) (fa);
   fprintf( stdout, STR(lround) "        : " PRI "\n", f1);
-  f1 = FUNC(llround) (0.5);
+  fa = 0.5;
+  f1 = FUNC(llround) (fa);
   fprintf( stdout, STR(lround) "        : " PRI "\n", f1);
 
-  f1 = FUNC(log) (42.0);
+  fa = 42.0;
+  f1 = FUNC(log) (fa);
   fprintf( stdout, STR(log) "           : " PRI "\n", f1);
 
-  f1 = FUNC(log10) (42.0);
+  fa = 42.0;
+  f1 = FUNC(log10) (fa);
   fprintf( stdout, STR(log10) "         : " PRI "\n", f1);
 
-  f1 = FUNC(log1p) (42.0);
+  fa = 42.0;
+  f1 = FUNC(log1p) (fa);
   fprintf( stdout, STR(log1p) "         : " PRI "\n", f1);
 
-  f1 = FUNC(log2) (42.0);
+  fa = 42.0;
+  f1 = FUNC(log2) (fa);
   fprintf( stdout, STR(log2) "          : " PRI "\n", f1);
 
-  f1 = FUNC(logb) (42.0);
+  fa = 42.0;
+  f1 = FUNC(logb) (fa);
   fprintf( stdout, STR(logb) "          : " PRI "\n", f1);
 
-  f1 = FUNC(lrint) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(lrint) (fa);
   fprintf( stdout, STR(lrint) "         : " PRI "\n", f1);
-  f1 = FUNC(lrint) (0.5);
+  fa = 0.5;
+  f1 = FUNC(lrint) (fa);
   fprintf( stdout, STR(lrint) "         : " PRI "\n", f1);
 
-  f1 = FUNC(lround) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(lround) (fa);
   fprintf( stdout, STR(lround) "        : " PRI "\n", f1);
-  f1 = FUNC(lround) (0.5);
+  fa = 0.5;
+  f1 = FUNC(lround) (fa);
   fprintf( stdout, STR(lround) "        : " PRI "\n", f1);
 
-  f1 = FUNC(modf) (42.0,&f2);
+  fa = 42.0;
+  f1 = FUNC(modf) (fa, &f2);
   fprintf( stdout, STR(lmodf) "         : " PRI "\n", f1);
 
   f1 = FUNC(nan) ("");
   fprintf( stdout, STR(nan) "           : " PRI "\n", f1);
 
-  f1 = FUNC(nearbyint) (1.5);
+  fa = 1.5;
+  f1 = FUNC(nearbyint) (fa);
   fprintf( stdout, STR(nearbyint) "     : " PRI "\n", f1);
 
-  f1 = FUNC(nextafter) (1.5,2.0);
+  fa = 1.5;
+  fb = 2.0;
+  f1 = FUNC(nextafter) (fa, fb);
   fprintf( stdout, STR(nextafter) "     : " PRI "\n", f1);
 
-  f1 = FUNC(pow) (3.01, 2.0);
+  fa = 3.01;
+  fb = 2.0;
+  f1 = FUNC(pow) (fa, fb);
   fprintf( stdout, STR(pow) "           : " PRI "\n", f1);
 
-  f1 = FUNC(remainder) (3.01,2.0);
+  fa = 3.01;
+  fb = 2.0;
+  f1 = FUNC(remainder) (fa, fb);
   fprintf( stdout, STR(remainder) "     : " PRI "\n", f1);
 
-  f1 = FUNC(remquo) (29.0,3.0,&i1);
+  fa = 29.0;
+  fb = 3.0;
+  f1 = FUNC(remquo) (fa, fb, &i1);
   fprintf( stdout, STR(remquo) "        : " PRI "\n", f1);
 
-  f1 = FUNC(rint) (0.5);
+  fa = 0.5;
+  f1 = FUNC(rint) (fa);
   fprintf( stdout, STR(rint) "          : " PRI "\n", f1);
-  f1 = FUNC(rint) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(rint) (fa);
   fprintf( stdout, STR(rint) "          : " PRI "\n", f1);
 
-  f1 = FUNC(round) (0.5);
+  fa = 0.5;
+  f1 = FUNC(round) (fa);
   fprintf( stdout, STR(round) "         : " PRI "\n", f1);
-  f1 = FUNC(round) (-0.5);
+  fa = -0.5;
+  f1 = FUNC(round) (fa);
   fprintf( stdout, STR(round) "         : " PRI "\n", f1);
 
-  f1 = FUNC(scalbln) (1.2,3);
+  fa = 1.2;
+  ia = 3;
+  f1 = FUNC(scalbln) (fa, ia);
   fprintf( stdout, STR(scalbln) "       : " PRI "\n", f1);
 
-  f1 = FUNC(scalbn) (1.2,3);
+  fa = 1.2;
+  ia = 3;
+  f1 = FUNC(scalbn) (fa, ia);
   fprintf( stdout, STR(scalbn) "        : " PRI "\n", f1);
 
   /* no type-specific variant */
-  i1 = signbit(1.0);
+  fa = 1.0;
+  i1 = signbit(fa);
   fprintf( stdout, "signbit        : %i\n", i1);
 
-  f1 = FUNC(sin) (M_PI_4);
+  fa = M_PI_4;
+  f1 = FUNC(sin) (fa);
   fprintf( stdout, STR(sin) "           : " PRI "\n", f1);
 
-  f1 = FUNC(sinh) (M_PI_4);
+  fa = M_PI_4;
+  f1 = FUNC(sinh) (fa);
   fprintf( stdout, STR(sinh) "          : " PRI "\n", f1);
 
-  f1 = FUNC(sqrt) (9.0);
+  fa = 9.0;
+  f1 = FUNC(sqrt) (fa);
   fprintf( stdout, STR(sqrt) "          : " PRI "\n", f1);
 
-  f1 = FUNC(tan) (M_PI_4);
+  fa = M_PI_4;
+  f1 = FUNC(tan) (fa);
   fprintf( stdout, STR(tan) "           : " PRI "\n", f1);
 
-  f1 = FUNC(tanh) (M_PI_4);
+  fa = M_PI_4;
+  f1 = FUNC(tanh) (fa);
   fprintf( stdout, STR(tanh) "          : " PRI "\n", f1);
 
-  f1 = FUNC(tgamma) (2.1);
+  fa = 2.1;
+  f1 = FUNC(tgamma) (fa);
   fprintf( stdout, STR(tgamma) "        : " PRI "\n", f1);
 
-  f1 = FUNC(trunc) (3.5);
+  fa = 3.5;
+  f1 = FUNC(trunc) (fa);
   fprintf( stdout, STR(trunc) "         : " PRI "\n", f1);
 
-  f1 = FUNC(y0) (1.2);
+  fa = 1.2;
+  f1 = FUNC(y0) (fa);
   fprintf( stdout, STR(y0) "            : " PRI "\n", f1);
 
-  f1 = FUNC(y1) (1.2);
+  fa = 1.2;
+  f1 = FUNC(y1) (fa);
   fprintf( stdout, STR(y1) "            : " PRI "\n", f1);
 
-  f1 = FUNC(yn) (3,1.2);
+  ia = 3;
+  fa = 1.2;
+  f1 = FUNC(yn) (ia, fa);
   fprintf( stdout, STR(yn) "            : " PRI "\n", f1);
 #endif
 }




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