112771Sqtt2@cornell.edu# See LICENSE for license details. 212771Sqtt2@cornell.edu 312771Sqtt2@cornell.edu#***************************************************************************** 412771Sqtt2@cornell.edu# structural.S 512771Sqtt2@cornell.edu#----------------------------------------------------------------------------- 612771Sqtt2@cornell.edu# 712771Sqtt2@cornell.edu# This test verifies that the FPU correctly obviates structural hazards on its 812771Sqtt2@cornell.edu# writeback port (e.g. fadd followed by fsgnj) 912771Sqtt2@cornell.edu# 1012771Sqtt2@cornell.edu 1112771Sqtt2@cornell.edu#include "riscv_test.h" 1212771Sqtt2@cornell.edu#include "test_macros.h" 1312771Sqtt2@cornell.edu 1412771Sqtt2@cornell.eduRVTEST_RV64UF 1512771Sqtt2@cornell.eduRVTEST_CODE_BEGIN 1612771Sqtt2@cornell.edu 1712771Sqtt2@cornell.eduli x25, 1 1812771Sqtt2@cornell.edu 1912771Sqtt2@cornell.eduli x2, 0x3FF0000000000000 2012771Sqtt2@cornell.eduli x1, 0x3F800000 2112771Sqtt2@cornell.edu 2212771Sqtt2@cornell.edu#define TEST(nops, errcode) \ 2312771Sqtt2@cornell.edu fmv.d.x f4, x0 ;\ 2412771Sqtt2@cornell.edu fmv.s.x f3, x0 ;\ 2512771Sqtt2@cornell.edu fmv.d.x f2, x2 ;\ 2612771Sqtt2@cornell.edu fmv.s.x f1, x1 ;\ 2712771Sqtt2@cornell.edu j 1f ;\ 2812771Sqtt2@cornell.edu .align 5 ;\ 2912771Sqtt2@cornell.edu1:fmul.d f4, f2, f2 ;\ 3012771Sqtt2@cornell.edu nops ;\ 3112771Sqtt2@cornell.edu fsgnj.s f3, f1, f1 ;\ 3212771Sqtt2@cornell.edu fmv.x.d x4, f4 ;\ 3312771Sqtt2@cornell.edu fmv.x.s x5, f3 ;\ 3412771Sqtt2@cornell.edu beq x1, x5, 2f ;\ 3512771Sqtt2@cornell.edu RVTEST_FAIL ;\ 3612771Sqtt2@cornell.edu2:beq x2, x4, 2f ;\ 3712771Sqtt2@cornell.edu RVTEST_FAIL; \ 3812771Sqtt2@cornell.edu2:fmv.d.x f2, zero ;\ 3912771Sqtt2@cornell.edu fmv.s.x f1, zero ;\ 4012771Sqtt2@cornell.edu 4112771Sqtt2@cornell.eduTEST(;,2) 4212771Sqtt2@cornell.eduTEST(nop,4) 4312771Sqtt2@cornell.eduTEST(nop;nop,6) 4412771Sqtt2@cornell.eduTEST(nop;nop;nop,8) 4512771Sqtt2@cornell.eduTEST(nop;nop;nop;nop,10) 4612771Sqtt2@cornell.eduTEST(nop;nop;nop;nop;nop,12) 4712771Sqtt2@cornell.eduTEST(nop;nop;nop;nop;nop;nop,14) 4812771Sqtt2@cornell.edu 4912771Sqtt2@cornell.eduRVTEST_PASS 5012771Sqtt2@cornell.edu 5112771Sqtt2@cornell.eduRVTEST_CODE_END 5212771Sqtt2@cornell.edu 5312771Sqtt2@cornell.edu .data 5412771Sqtt2@cornell.eduRVTEST_DATA_BEGIN 5512771Sqtt2@cornell.edu 5612771Sqtt2@cornell.edu TEST_DATA 5712771Sqtt2@cornell.edu 5812771Sqtt2@cornell.eduRVTEST_DATA_END 59