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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