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# 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 x5, f3 ;\
beq x1, x5, 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
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