47 lines
1.1 KiB
ArmAsm
47 lines
1.1 KiB
ArmAsm
# See LICENSE for license details.
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#*****************************************************************************
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# recoding.S
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#-----------------------------------------------------------------------------
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#
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# Test corner cases of John Hauser's microarchitectural recoding scheme.
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# There are twice as many recoded values as IEEE-754 values; some of these
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# extras are redundant (e.g. Inf) and others are illegal (subnormals with
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# too many bits set).
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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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# Make sure infinities with different mantissas compare as equal.
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flw f0, minf, a0
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flw f1, three, a0
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fmul.s f1, f1, f0
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TEST_CASE( 2, a0, 1, feq.s a0, f0, f1)
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TEST_CASE( 3, a0, 1, fle.s a0, f0, f1)
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TEST_CASE( 4, a0, 0, flt.s a0, f0, f1)
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# Likewise, but for zeroes.
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fcvt.s.w f0, x0
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li a0, 1
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fcvt.s.w f1, a0
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fmul.s f1, f1, f0
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TEST_CASE(5, a0, 1, feq.s a0, f0, f1)
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TEST_CASE(6, a0, 1, fle.s a0, f0, f1)
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TEST_CASE(7, a0, 0, flt.s a0, f0, f1)
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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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minf: .float -Inf
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three: .float 3.0
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RVTEST_DATA_END
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