diff options
| author | Jan Beulich <jbeulich@suse.com> | 2021-07-22 13:02:08 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2021-07-22 13:02:08 +0200 |
| commit | be2f8fcd9df7d50fd17125eccecf7fc0bad6b2c8 (patch) | |
| tree | e1c5643331999a38a19673f39b70b19d505df876 /opcodes/i386-dis.c | |
| parent | d0579d4d1c724b524da43ad164ce140218497ead (diff) | |
| download | gdb-be2f8fcd9df7d50fd17125eccecf7fc0bad6b2c8.zip gdb-be2f8fcd9df7d50fd17125eccecf7fc0bad6b2c8.tar.gz gdb-be2f8fcd9df7d50fd17125eccecf7fc0bad6b2c8.tar.bz2 | |
x86: correct VCVT{,U}SI2SD rounding mode handling
With EVEX.W clear the instruction doesn't ignore the rounding mode, but
(like for other insns without rounding semantics) EVEX.b set causes #UD.
Hence the handling of EVEX.W needs to be done when processing
evex_rounding_64_mode, not at the decode stages.
Derive a new 64-bit testcase from the 32-bit one to cover the different
EVEX.W treatment in both cases.
Diffstat (limited to 'opcodes/i386-dis.c')
| -rw-r--r-- | opcodes/i386-dis.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index f88276c..ccc49ff 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -1476,7 +1476,6 @@ enum EVEX_W_0F12_P_3, EVEX_W_0F16_P_0_M_1, EVEX_W_0F16_P_1, - EVEX_W_0F2A_P_3, EVEX_W_0F51_P_1, EVEX_W_0F51_P_3, EVEX_W_0F58_P_1, @@ -1521,7 +1520,6 @@ enum EVEX_W_0F7A_P_2, EVEX_W_0F7A_P_3, EVEX_W_0F7B_P_2, - EVEX_W_0F7B_P_3, EVEX_W_0F7E_P_1, EVEX_W_0F7F_P_1, EVEX_W_0F7F_P_2, @@ -13724,7 +13722,7 @@ OP_Rounding (int bytemode, int sizeflag ATTRIBUTE_UNUSED) switch (bytemode) { case evex_rounding_64_mode: - if (address_mode != mode_64bit) + if (address_mode != mode_64bit || !vex.w) { oappend ("(bad)"); break; |