Fix incorrect decoding of AVX2 insns:

  VPBROADCASTB xmm, xmm
  VPBROADCASTB xmm, ymm
  VPBROADCASTW xmm, xmm
  VPBROADCASTW xmm, ymm
Fixes #340725.

git-svn-id: svn://svn.valgrind.org/vex/trunk@2988

diff --git a/VEX/priv/guest_amd64_toIR.c b/VEX/priv/guest_amd64_toIR.c
index 7dbd7a9176ae3729435276bcfa3317068b34368a..04efa78fd565158bd8cfea8bad05fa0f315605f1 100644 (file)
--- a/VEX/priv/guest_amd64_toIR.c
+++ b/VEX/priv/guest_amd64_toIR.c
@@ -28661,6 +28661,7 @@ Long dis_ESC_0F38__VEX (
          IRTemp t8   = newTemp(Ity_I8);
          if (epartIsReg(modrm)) {
             UInt rE = eregOfRexRM(pfx, modrm);
+            delta++;
             DIP("vpbroadcastb %s,%s\n", nameXMMReg(rE), nameXMMReg(rG));
             assign(t8, unop(Iop_32to8, getXMMRegLane32(rE, 0)));
          } else {
@@ -28687,6 +28688,7 @@ Long dis_ESC_0F38__VEX (
          IRTemp t8   = newTemp(Ity_I8);
          if (epartIsReg(modrm)) {
             UInt rE = eregOfRexRM(pfx, modrm);
+            delta++;
             DIP("vpbroadcastb %s,%s\n", nameXMMReg(rE), nameYMMReg(rG));
             assign(t8, unop(Iop_32to8, getXMMRegLane32(rE, 0)));
          } else {
@@ -28717,6 +28719,7 @@ Long dis_ESC_0F38__VEX (
          IRTemp t16  = newTemp(Ity_I16);
          if (epartIsReg(modrm)) {
             UInt rE = eregOfRexRM(pfx, modrm);
+            delta++;
             DIP("vpbroadcastw %s,%s\n", nameXMMReg(rE), nameXMMReg(rG));
             assign(t16, unop(Iop_32to16, getXMMRegLane32(rE, 0)));
          } else {
@@ -28741,6 +28744,7 @@ Long dis_ESC_0F38__VEX (
          IRTemp t16  = newTemp(Ity_I16);
          if (epartIsReg(modrm)) {
             UInt rE = eregOfRexRM(pfx, modrm);
+            delta++;
             DIP("vpbroadcastw %s,%s\n", nameXMMReg(rE), nameYMMReg(rG));
             assign(t16, unop(Iop_32to16, getXMMRegLane32(rE, 0)));
          } else {