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| author | Anton Blanchard <anton@samba.org> | 2013-06-02 22:29:39 +1000 |
|---|---|---|
| committer | Michael Roth <mdroth@linux.vnet.ibm.com> | 2013-06-17 18:01:42 -0500 |
| commit | 2917f6bcd04a4c75a1e0831eab7e4d62b714d252 (patch) | |
| tree | a88eefea3dc9dc7dcb5cb3688319972d9f8e62a7 /tcg | |
| parent | 9534f66ac1a50015034acbe86c110bb89673460e (diff) | |
| download | qemu-2917f6bcd04a4c75a1e0831eab7e4d62b714d252.tar.gz qemu-2917f6bcd04a4c75a1e0831eab7e4d62b714d252.tar.bz2 qemu-2917f6bcd04a4c75a1e0831eab7e4d62b714d252.zip | |
tcg-ppc64: Fix add2_i64
add2_i64 was adding the lower double word to the upper double word
of each input. Fix this so we add the lower double words, then the
upper double words with carry propagation.
Cc: qemu-stable@nongnu.org
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
(cherry picked from commit 84247357104044b8c4ec4a634e84769f432cbe52)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/ppc64/tcg-target.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 1d065300f8..5cdff36393 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -1959,18 +1959,18 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args, environment. So in 64-bit mode it's always carry-out of bit 63. The fallback code using deposit works just as well for 32-bit. */ a0 = args[0], a1 = args[1]; - if (a0 == args[4] || (!const_args[5] && a0 == args[5])) { + if (a0 == args[3] || (!const_args[5] && a0 == args[5])) { a0 = TCG_REG_R0; } - if (const_args[3]) { - tcg_out32(s, ADDIC | TAI(a0, args[2], args[3])); + if (const_args[4]) { + tcg_out32(s, ADDIC | TAI(a0, args[2], args[4])); } else { - tcg_out32(s, ADDC | TAB(a0, args[2], args[3])); + tcg_out32(s, ADDC | TAB(a0, args[2], args[4])); } if (const_args[5]) { - tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[4])); + tcg_out32(s, (args[5] ? ADDME : ADDZE) | RT(a1) | RA(args[3])); } else { - tcg_out32(s, ADDE | TAB(a1, args[4], args[5])); + tcg_out32(s, ADDE | TAB(a1, args[3], args[5])); } if (a0 != args[0]) { tcg_out_mov(s, TCG_TYPE_I64, args[0], a0); @@ -2148,7 +2148,7 @@ static const TCGTargetOpDef ppc_op_defs[] = { { INDEX_op_deposit_i32, { "r", "0", "rZ" } }, { INDEX_op_deposit_i64, { "r", "0", "rZ" } }, - { INDEX_op_add2_i64, { "r", "r", "r", "rI", "r", "rZM" } }, + { INDEX_op_add2_i64, { "r", "r", "r", "r", "rI", "rZM" } }, { INDEX_op_sub2_i64, { "r", "r", "rI", "r", "rZM", "r" } }, { INDEX_op_muls2_i64, { "r", "r", "r", "r" } }, { INDEX_op_mulu2_i64, { "r", "r", "r", "r" } }, |