diff options
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 9 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll | 11 |
2 files changed, 19 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 171f6bf0938..43ffef2dcff 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -1164,13 +1164,20 @@ bool PPC::isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind, } /// isVPKUDUMShuffleMask - Return true if this is the shuffle mask for a -/// VPKUDUM instruction. +/// VPKUDUM instruction, AND the VPKUDUM instruction exists for the +/// current subtarget. +/// /// The ShuffleKind distinguishes between big-endian operations with /// two different inputs (0), either-endian operations with two identical /// inputs (1), and little-endian operations with two different inputs (2). /// For the latter, the input operands are swapped (see PPCInstrAltivec.td). bool PPC::isVPKUDUMShuffleMask(ShuffleVectorSDNode *N, unsigned ShuffleKind, SelectionDAG &DAG) { + const PPCSubtarget& Subtarget = + static_cast<const PPCSubtarget&>(DAG.getSubtarget()); + if (!Subtarget.hasP8Vector()) + return false; + bool IsLE = DAG.getTarget().getDataLayout()->isLittleEndian(); if (ShuffleKind == 0) { if (IsLE) diff --git a/llvm/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll b/llvm/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll index d81aa729f8e..77802348d8e 100644 --- a/llvm/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll +++ b/llvm/test/CodeGen/PowerPC/vec_shuffle_p8vector.ll @@ -1,4 +1,5 @@ ; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu -mattr=+power8-vector < %s | FileCheck %s +; RUN: llc -mcpu=pwr7 -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck -check-prefix=CHECK-PWR7 %s define void @VPKUDUM_unary(<2 x i64>* %A) { entry: @@ -17,7 +18,12 @@ entry: ; CHECK-LABEL: @VPKUDUM_unary ; CHECK-NOT: vperm +; CHECK-NOT: vmrglw +; CHECK-NOT: vmrghw ; CHECK: vpkudum +; CHECK-PWR7: vmrglw +; CHECK-PWR7: vmrghw +; CHECK-PWR7: vmrglw define void @VPKUDUM(<2 x i64>* %A, <2 x i64>* %B) { entry: @@ -40,4 +46,9 @@ entry: ; CHECK-LABEL: @VPKUDUM ; CHECK-NOT: vperm +; CHECK-NOT: vmrglw +; CHECK-NOT: vmrghw ; CHECK: vpkudum +; CHECK-PWR7: vmrglw +; CHECK-PWR7: vmrghw +; CHECK-PWR7: vmrglw |
