SYS-OSS/FRET-qemu
4
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

target/arm: Use neon_element_offset in vfp_reg_offset

Browse Source 
This seems a bit more readable than using offsetof CPU_DoubleU.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201030022618.785675-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-11-02 16:52:13 +00:00 committed by Peter Maydell
parent 0f2cdc8227
commit d8719785fd
1 changed files with 4 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
target/arm/translate.c
View File

@ -1122,18 +1122,13 @@ static long neon_element_offset(int reg, int element, MemOp size)
return neon_full_reg_offset(reg) + ofs; return neon_full_reg_offset(reg) + ofs;
} }
static inline long vfp_reg_offset(bool dp, unsigned reg) /* Return the offset of a VFP Dreg (dp = true) or VFP Sreg (dp = false). */
static long vfp_reg_offset(bool dp, unsigned reg)
{ {
if (dp) { if (dp) {
return offsetof(CPUARMState, vfp.zregs[reg >> 1].d[reg & 1]); return neon_element_offset(reg, 0, MO_64);
} else { } else {
long ofs = offsetof(CPUARMState, vfp.zregs[reg >> 2].d[(reg >> 1) & 1]); return neon_element_offset(reg >> 1, reg & 1, MO_32);
if (reg & 1) {
ofs += offsetof(CPU_DoubleU, l.upper);
} else {
ofs += offsetof(CPU_DoubleU, l.lower);
}
return ofs;
} }
} }