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[Qemu-devel] [PATCH] tcg/i386: fix unsigned vector saturating arithmetic
From: |
Mark Cave-Ayland |
Subject: |
[Qemu-devel] [PATCH] tcg/i386: fix unsigned vector saturating arithmetic |
Date: |
Thu, 7 Feb 2019 22:42:58 +0000 |
Due to a cut/paste error in the original implementation, the unsigned vector
saturating arithmetic was erroneously being calculated as signed vector
saturating
arithmetic.
Fixes: 8ffafbcec2 ("tcg/i386: Implement vector saturating arithmetic")
Signed-off-by: Mark Cave-Ayland <address@hidden>
---
tcg/i386/tcg-target.inc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c
index 4d84aea3a9..e0670e5098 100644
--- a/tcg/i386/tcg-target.inc.c
+++ b/tcg/i386/tcg-target.inc.c
@@ -2615,7 +2615,7 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
OPC_PADDSB, OPC_PADDSW, OPC_UD2, OPC_UD2
};
static int const usadd_insn[4] = {
- OPC_PADDSB, OPC_PADDSW, OPC_UD2, OPC_UD2
+ OPC_PADDUB, OPC_PADDUW, OPC_UD2, OPC_UD2
};
static int const sub_insn[4] = {
OPC_PSUBB, OPC_PSUBW, OPC_PSUBD, OPC_PSUBQ
@@ -2624,7 +2624,7 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
OPC_PSUBSB, OPC_PSUBSW, OPC_UD2, OPC_UD2
};
static int const ussub_insn[4] = {
- OPC_PSUBSB, OPC_PSUBSW, OPC_UD2, OPC_UD2
+ OPC_PSUBUB, OPC_PSUBUW, OPC_UD2, OPC_UD2
};
static int const mul_insn[4] = {
OPC_UD2, OPC_PMULLW, OPC_PMULLD, OPC_UD2
--
2.11.0
- [Qemu-devel] [PATCH] tcg/i386: fix unsigned vector saturating arithmetic,
Mark Cave-Ayland <=