From b3b1ebc672d3cc83cfda5799c05d39f97a9796a1 Mon Sep 17 00:00:00 2001
From: Andrew Waterman <waterman@eecs.berkeley.edu>
Date: Thu, 6 Mar 2014 18:23:05 -0800
Subject: [PATCH] Add fclass.{s|d} test

---
 isa/rv64uf/Makefrag |  2 +-
 isa/rv64uf/fclass.S | 57 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 isa/rv64uf/fclass.S

diff --git a/isa/rv64uf/Makefrag b/isa/rv64uf/Makefrag
index fc9da14..95c8647 100644
--- a/isa/rv64uf/Makefrag
+++ b/isa/rv64uf/Makefrag
@@ -3,7 +3,7 @@
 #-----------------------------------------------------------------------
 
 rv64uf_sc_tests = \
-	fadd fcmp fcvt fcvt_w fmadd fmin fsgnj \
+	fadd fclass fcmp fcvt fcvt_w fmadd fmin fsgnj \
 	ldst move structural \
 
 rv64uf_sc_vec_tests = \
diff --git a/isa/rv64uf/fclass.S b/isa/rv64uf/fclass.S
new file mode 100644
index 0000000..9b814e6
--- /dev/null
+++ b/isa/rv64uf/fclass.S
@@ -0,0 +1,57 @@
+#*****************************************************************************
+# fclass.S
+#-----------------------------------------------------------------------------
+#
+# Test fclass.{s|d} instructions.
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV64UF
+RVTEST_CODE_BEGIN
+
+  #-------------------------------------------------------------
+  # Arithmetic tests
+  #-------------------------------------------------------------
+
+  #define TEST_FCLASS_S(testnum, correct, input) \
+    TEST_CASE(testnum, a0, correct, li a0, input; fmv.s.x fa0, a0; \
+                                    fclass.s a0, fa0)
+
+  TEST_FCLASS_S( 2, 1 << 0, 0xff800000 )
+  TEST_FCLASS_S( 3, 1 << 1, 0xbf800000 )
+  TEST_FCLASS_S( 4, 1 << 2, 0x807fffff )
+  TEST_FCLASS_S( 5, 1 << 3, 0x80000000 )
+  TEST_FCLASS_S( 6, 1 << 4, 0x00000000 )
+  TEST_FCLASS_S( 7, 1 << 5, 0x007fffff )
+  TEST_FCLASS_S( 8, 1 << 6, 0x3f800000 )
+  TEST_FCLASS_S( 9, 1 << 7, 0x7f800000 )
+  TEST_FCLASS_S(10, 1 << 8, 0x7f800001 )
+  TEST_FCLASS_S(11, 1 << 9, 0x7fc00000 )
+
+  #define TEST_FCLASS_D(testnum, correct, input) \
+    TEST_CASE(testnum, a0, correct, li a0, input; fmv.d.x fa0, a0; \
+                                    fclass.d a0, fa0)
+
+  TEST_FCLASS_D(12, 1 << 0, 0xfff0000000000000 )
+  TEST_FCLASS_D(13, 1 << 1, 0xbff0000000000000 )
+  TEST_FCLASS_D(14, 1 << 2, 0x800fffffffffffff )
+  TEST_FCLASS_D(15, 1 << 3, 0x8000000000000000 )
+  TEST_FCLASS_D(16, 1 << 4, 0x0000000000000000 )
+  TEST_FCLASS_D(17, 1 << 5, 0x000fffffffffffff )
+  TEST_FCLASS_D(18, 1 << 6, 0x3ff0000000000000 )
+  TEST_FCLASS_D(19, 1 << 7, 0x7ff0000000000000 )
+  TEST_FCLASS_D(20, 1 << 8, 0x7ff0000000000001 )
+  TEST_FCLASS_D(21, 1 << 9, 0x7ff8000000000000 )
+
+  TEST_PASSFAIL
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END
-- 
2.30.2