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authorJakub Jelinek <jakub@redhat.com>2010-10-13 22:27:03 -0400
committerUlrich Drepper <drepper@gmail.com>2010-10-13 22:27:03 -0400
commit5e908464b9603e9cd95047d2edd00de5f78fedaf (patch)
tree1f526248f31bee031ce4c92d9b1b2e857d6b671b /math
parentf90681487d90a6eea8f1c60021bc8dd83313c59b (diff)
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Implement accurate fma.
Diffstat (limited to 'math')
-rw-r--r--math/libm-test.inc18
1 files changed, 17 insertions, 1 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index 2d48f719c9..34c4fa9fff 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -2789,9 +2789,25 @@ fma_test (void)
   TEST_fff_f (fma, minus_infty, minus_infty, minus_infty, nan_value, INVALID_EXCEPTION);
 
   TEST_fff_f (fma, 1.25L, 0.75L, 0.0625L, 1.0L);
-#ifdef TEST_FLOAT
+#if defined (TEST_FLOAT) && FLT_MANT_DIG == 24
   TEST_fff_f (fma, 0x1.7ff8p+13, 0x1.000002p+0, 0x1.ffffp-24, 0x1.7ff802p+13);
   TEST_fff_f (fma, 0x1.fffp+0, 0x1.00001p+0, -0x1.fffp+0, 0x1.fffp-20);
+  TEST_fff_f (fma, 0x1.9abcdep+127, 0x0.9abcdep-126, -0x1.f08948p+0, 0x1.bb421p-25);
+  TEST_fff_f (fma, 0x1.9abcdep+100, 0x0.9abcdep-126, -0x1.f08948p-27, 0x1.bb421p-52);
+  TEST_fff_f (fma, 0x1.fffffep+127, 0x1.001p+0, -0x1.fffffep+127, 0x1.fffffep+115);
+  TEST_fff_f (fma, -0x1.fffffep+127, 0x1.fffffep+0, 0x1.fffffep+127, -0x1.fffffap+127);
+  TEST_fff_f (fma, 0x1.fffffep+127, 2.0, -0x1.fffffep+127, 0x1.fffffep+127);
+#endif
+#if defined (TEST_DOUBLE) && DBL_MANT_DIG == 53
+  TEST_fff_f (fma, 0x1.7fp+13, 0x1.0000000000001p+0, 0x1.ffep-48, 0x1.7f00000000001p+13);
+  TEST_fff_f (fma, 0x1.fffp+0, 0x1.0000000000001p+0, -0x1.fffp+0, 0x1.fffp-52);
+  TEST_fff_f (fma, 0x1.0000002p+0, 0x1.ffffffcp-1, 0x1p-300, 1.0);
+  TEST_fff_f (fma, 0x1.0000002p+0, 0x1.ffffffcp-1, -0x1p-300, 0x1.fffffffffffffp-1);
+  TEST_fff_f (fma, 0x1.deadbeef2feedp+1023, 0x0.deadbeef2feedp-1022, -0x1.a05f8c01a4bfbp+1, 0x1.0989687bc9da4p-53);
+  TEST_fff_f (fma, 0x1.deadbeef2feedp+900, 0x0.deadbeef2feedp-1022, -0x1.a05f8c01a4bfbp-122, 0x1.0989687bc9da4p-176);
+  TEST_fff_f (fma, 0x1.fffffffffffffp+1023, 0x1.001p+0, -0x1.fffffffffffffp+1023, 0x1.fffffffffffffp+1011);
+  TEST_fff_f (fma, -0x1.fffffffffffffp+1023, 0x1.fffffffffffffp+0, 0x1.fffffffffffffp+1023, -0x1.ffffffffffffdp+1023);
+  TEST_fff_f (fma, 0x1.fffffffffffffp+1023, 2.0, -0x1.fffffffffffffp+1023, 0x1.fffffffffffffp+1023);
 #endif
 
   END (fma);