61 lines
1.1 KiB
ArmAsm
61 lines
1.1 KiB
ArmAsm
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# See LICENSE for license details.
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#*****************************************************************************
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# structural.S
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#-----------------------------------------------------------------------------
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#
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# This test verifies that the FPU correctly obviates structural hazards on its
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# writeback port (e.g. fadd followed by fsgnj)
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#
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#include "riscv_test.h"
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#include "test_macros.h"
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RVTEST_RV64UF
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RVTEST_CODE_BEGIN
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li x12, 1
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li x2, 0x3FF0000000000000
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li x1, 0x3F800000
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#define TEST(testnum, nops) \
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test_ ## testnum: \
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li TESTNUM, testnum; \
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fmv.d.x f4, x0 ;\
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fmv.s.x f3, x0 ;\
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fmv.d.x f2, x2 ;\
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fmv.s.x f1, x1 ;\
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j 1f ;\
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.align 5 ;\
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1:fmul.d f4, f2, f2 ;\
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nops ;\
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fsgnj.s f3, f1, f1 ;\
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fmv.x.d x4, f4 ;\
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fmv.x.s x5, f3 ;\
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beq x1, x5, 2f ;\
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j fail;\
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2:beq x2, x4, 2f ;\
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j fail; \
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2:fmv.d.x f2, zero ;\
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fmv.s.x f1, zero ;\
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TEST(1,;)
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TEST(2,nop)
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TEST(3,nop;nop)
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TEST(4,nop;nop;nop)
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TEST(5,nop;nop;nop;nop)
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TEST(6,nop;nop;nop;nop;nop)
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TEST(7,nop;nop;nop;nop;nop;nop)
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TEST_PASSFAIL
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RVTEST_CODE_END
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.data
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RVTEST_DATA_BEGIN
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TEST_DATA
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RVTEST_DATA_END
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