OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target-arm: fix neon vshrn/vrshrn ops

Browse Source 
In the existing code shift value is clobbered during the pass loop.
This patch changes the code so that it stores the intermediate
result in the target neon register directly and eliminates the need
to use a temporary to hold the intermediate value thus leaving the
shift value in the temporary variable intact. This is a new patch
in this version of the patch series.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Acked-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Juha Riihimäki 2009-10-24 15:19:00 +03:00 committed by Aurelien Jarno
parent 25aeb69b8d
commit 2301db4916
1 changed files with 3 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
target-arm/translate.c
View File

@ -4680,18 +4680,12 @@ static int disas_neon_data_insn(CPUState * env, DisasContext *s, uint32_t insn)
else
gen_neon_narrow_satu(size - 1, tmp, cpu_V0);
}
if (pass == 0) {
if (size != 3) {
dead_tmp(tmp2);
}
tmp2 = tmp;
} else {
neon_store_reg(rd, 0, tmp2);
neon_store_reg(rd, 1, tmp);
}
neon_store_reg(rd, pass, tmp);
} /* for pass */
if (size == 3) {
tcg_temp_free_i64(tmp64);
} else {
dead_tmp(tmp2);
}
} else if (op == 10) {
/* VSHLL */