| # 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 x12, 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 |
