split up rv64uf and rv64ud isa tests

[riscv-tests.git] / isa / rv64ud / structural.S

diff --git a/isa/rv64ud/structural.S b/isa/rv64ud/structural.S
new file mode 100644 (file)
index 0000000..76c6691
--- /dev/null
+++ b/isa/rv64ud/structural.S
@@ -0,0 +1,58 @@
+# See LICENSE for license details.
+
+#*****************************************************************************
+# structural.S
+#-----------------------------------------------------------------------------
+#
+# This test verifies that the FPU correctly obviates structural hazards on its
+# writeback port (e.g. fadd followed by fsgnj)
+#
+
+#include "riscv_test.h"
+#include "test_macros.h"
+
+RVTEST_RV64UF
+RVTEST_CODE_BEGIN
+
+li x25, 1
+
+li x2, 0x3FF0000000000000
+li x1, 0x3F800000
+
+#define TEST(nops, errcode)     \
+  fmv.d.x  f4, x0    ;\
+  fmv.s.x  f3, x0    ;\
+  fmv.d.x  f2, x2    ;\
+  fmv.s.x  f1, x1    ;\
+  j 1f ;\
+  .align 5        ;\
+1:fmul.d  f4, f2, f2  ;\
+  nops          ;\
+  fsgnj.s f3, f1, f1 ;\
+  fmv.x.d  x4, f4    ;\
+  fmv.x.s  x3, f3    ;\
+  beq     x1, x3, 2f  ;\
+  RVTEST_FAIL ;\
+2:beq     x2, x4, 2f  ;\
+  RVTEST_FAIL; \
+2:fmv.d.x  f2, zero    ;\
+  fmv.s.x  f1, zero    ;\
+
+TEST(;,2)
+TEST(nop,4)
+TEST(nop;nop,6)
+TEST(nop;nop;nop,8)
+TEST(nop;nop;nop;nop,10)
+TEST(nop;nop;nop;nop;nop,12)
+TEST(nop;nop;nop;nop;nop;nop,14)
+
+RVTEST_PASS
+
+RVTEST_CODE_END
+
+  .data
+RVTEST_DATA_BEGIN
+
+  TEST_DATA
+
+RVTEST_DATA_END