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tcg/optimize: Do not attempt to constant fold neg_vec
Split out the tail of fold_neg to fold_neg_no_const so that we can avoid attempting to constant fold vector negate. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2150 Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,12 @@ | ||
/* SPDX-License-Identifier: GPL-2.0-or-later */ | ||
/* See https://gitlab.com/qemu-project/qemu/-/issues/2150 */ | ||
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||
int main() | ||
{ | ||
asm volatile( | ||
"movi v6.4s, #1\n" | ||
"movi v7.4s, #0\n" | ||
"sub v6.2d, v7.2d, v6.2d\n" | ||
: : : "v6", "v7"); | ||
return 0; | ||
} |