diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 136d124ab4b..9e249caea4b 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -73,9 +73,10 @@ cl::opt<bool> ExperimentalVectorWideningLegalization( static cl::opt<int> ExperimentalPrefLoopAlignment( "x86-experimental-pref-loop-alignment", cl::init(4), - cl::desc("Sets the preferable loop alignment for experiments " - "(the last x86-experimental-pref-loop-alignment bits" - " of the loop header PC will be 0)."), + cl::desc( + "Sets the preferable loop alignment for experiments (as log2 bytes)" + "(the last x86-experimental-pref-loop-alignment bits" + " of the loop header PC will be 0)."), cl::Hidden); // Added in 10.0. @@ -1892,7 +1893,7 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM, MaxLoadsPerMemcmpOptSize = 2; // Set loop alignment to 2^ExperimentalPrefLoopAlignment bytes (default: 2^4). - setPrefLoopLogAlignment(ExperimentalPrefLoopAlignment); + setPrefLoopAlignment(llvm::Align(1UL << ExperimentalPrefLoopAlignment)); // An out-of-order CPU can speculatively execute past a predictable branch, // but a conditional move could be stalled by an expensive earlier operation. |
