diff options
Diffstat (limited to 'tests/test-progs/asmtest/src/riscv/isa/rv64ud/structural.S')
| -rw-r--r-- | tests/test-progs/asmtest/src/riscv/isa/rv64ud/structural.S | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/tests/test-progs/asmtest/src/riscv/isa/rv64ud/structural.S b/tests/test-progs/asmtest/src/riscv/isa/rv64ud/structural.S new file mode 100644 index 000000000..5ecbb96d6 --- /dev/null +++ b/tests/test-progs/asmtest/src/riscv/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 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 |