Expand vector bswap in LegalizeVectorOps

ISD::BSWAP was missing from the list of node types that should be expanded
element-wise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200705 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
index 2c3cdccb56e89bcd3029f41066b3e2a5f0e1b707..3fb2d9bdf55e1a4c3eee8e53142fe47f923236bd 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp
@@ -210,6 +210,7 @@ SDValue VectorLegalizer::LegalizeOp(SDValue Op) {
   case ISD::SRL:
   case ISD::ROTL:
   case ISD::ROTR:
+  case ISD::BSWAP:
   case ISD::CTLZ:
   case ISD::CTTZ:
   case ISD::CTLZ_ZERO_UNDEF:

diff --git a/test/CodeGen/X86/bswap-vector.ll b/test/CodeGen/X86/bswap-vector.ll
new file mode 100644 (file)
index 0000000..6b77176
--- /dev/null
+++ b/test/CodeGen/X86/bswap-vector.ll
@@ -0,0 +1,19 @@
+; RUN: llc < %s -mcpu=x86_64 | FileCheck %s
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
+
+define <2 x i64> @foo(<2 x i64> %v) #0 {
+entry:
+  %r = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %v)
+  ret <2 x i64> %r
+}
+
+; CHECK-LABEL: @foo
+; CHECK: bswapq
+; CHECK: bswapq
+; CHECK: retq
+
+attributes #0 = { nounwind uwtable }
+