Logo
Explore Help
Sign In
dfaggioli/qemu
1
0
Fork 0
You've already forked qemu
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
c8b39c9b5b901b173fbbb0ec3f147e9694ece48c
qemu/tests/tcg/loongarch64/test_fcsr.c

16 lines
279 B
C
Raw Normal View History

target/loongarch: Remove cpu_fcsr0 All of the fpu operations are defined with TCG_CALL_NO_WG, but they all modify FCSR0. The most efficient way to fix this is to remove cpu_fcsr0, and instead use explicit load and store operations for the two instructions that manipulate that value. Acked-by: Qi Hu <huqi@loongson.cn> Reviewed-by: Song Gao <gaosong@loongson.cn> Reported-by: Feiyang Chen <chenfeiyang@loongson.cn> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-08-06 10:04:44 -07:00
#include <assert.h>
int main()
{
unsigned fcsr;
asm("movgr2fcsr $r0,$r0\n\t"
"movgr2fr.d $f0,$r0\n\t"
"fdiv.d $f0,$f0,$f0\n\t"
"movfcsr2gr %0,$r0"
: "=r"(fcsr) : : "f0");
assert(fcsr & (16 << 16)); /* Invalid */
return 0;
}
Reference in New Issue Copy Permalink
Powered by Gitea Version: 1.24.6 Page: 61ms Template: 2ms
English
Bahasa Indonesia Deutsch English Español Français Gaeilge Italiano Latviešu Magyar nyelv Nederlands Polski Português de Portugal Português do Brasil Suomi Svenska Türkçe Čeština Ελληνικά Български Русский Українська فارسی മലയാളം 日本語 简体中文 繁體中文(台灣) 繁體中文(香港) 한국어
Licenses API