7619129f0d
Input denormals cause the Javascript inexact bit
(output to Z) to be set.
Cc: qemu-stable@nongnu.org
Fixes: 6c1f6f2733 ("target/arm: Implement ARMv8.3-JSConv")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2375
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240625183536.1672454-4-richard.henderson@linaro.org
[PMM: fixed hardcoded tab in test case]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
22 lines
450 B
C
22 lines
450 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* Copyright (c) 2024 Linaro Ltd */
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/* See https://gitlab.com/qemu-project/qemu/-/issues/2375 */
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#include <assert.h>
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int main(void)
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{
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int r, z;
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asm("msr fpcr, %2\n\t"
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"fjcvtzs %w0, %d3\n\t"
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"cset %1, eq"
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: "=r"(r), "=r"(z)
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: "r"(0x01000000L), /* FZ = 1 */
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"w"(0xfcff00L)); /* denormal */
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assert(r == 0);
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assert(z == 0);
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return 0;
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}
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