diff options
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp b/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp index 491eaf326a5..7d34efd4af3 100644 --- a/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp +++ b/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp @@ -195,8 +195,10 @@ public: return false; // If we don't have VSX on the subtarget, don't do anything. + // Also, on Power 9 the load and store ops preserve element order and so + // the swaps are not required. const PPCSubtarget &STI = MF.getSubtarget<PPCSubtarget>(); - if (!STI.hasVSX()) + if (!STI.hasVSX() || !STI.needsSwapsForVSXMemOps()) return false; bool Changed = false; |
