diff options
Diffstat (limited to 'clang/lib/AST/ByteCode/InterpBuiltin.cpp')
| -rw-r--r-- | clang/lib/AST/ByteCode/InterpBuiltin.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/clang/lib/AST/ByteCode/InterpBuiltin.cpp b/clang/lib/AST/ByteCode/InterpBuiltin.cpp index 6053237..68ebfdf 100644 --- a/clang/lib/AST/ByteCode/InterpBuiltin.cpp +++ b/clang/lib/AST/ByteCode/InterpBuiltin.cpp @@ -2796,7 +2796,7 @@ static bool interp__builtin_ia32_pshuf(InterpState &S, CodePtr OpPC, unsigned LaneBase = (Idx / LaneElts) * LaneElts; unsigned LaneIdx = Idx % LaneElts; unsigned SrcIdx = Idx; - unsigned Sel = (Ctl >> (2 * LaneIdx)) & 0x3; + unsigned Sel = (Ctl >> (2 * (LaneIdx & 0x3))) & 0x3; if (ElemBits == 32) { SrcIdx = LaneBase + Sel; } else { @@ -2805,8 +2805,6 @@ static bool interp__builtin_ia32_pshuf(InterpState &S, CodePtr OpPC, if (!IsShufHW && !InHigh) { SrcIdx = LaneBase + Sel; } else if (IsShufHW && InHigh) { - unsigned Rel = LaneIdx - HalfSize; - Sel = (Ctl >> (2 * Rel)) & 0x3; SrcIdx = LaneBase + HalfSize + Sel; } } |