Implement sse4.2 string/text processing instructions:
Add patterns and instruction encoding information.
Add custom lowering to deal with hardwired return register of
uncertain type (xmm0).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79377 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index f3f09f5..1c612a1 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -693,6 +693,14 @@
const Value *DstSV, uint64_t DstSVOff,
const Value *SrcSV, uint64_t SrcSVOff);
+ /// Utility function to emit string processing sse4.2 instructions
+ /// that return in xmm0.
+ // This takes the instruction to expand, the associated machine basic
+ // block, the number of args, and whether or not the second arg is
+ // in memory or not.
+ MachineBasicBlock *EmitPCMP(MachineInstr *BInstr, MachineBasicBlock *BB,
+ unsigned argNum, bool inMem) const;
+
/// Utility function to emit atomic bitwise operations (and, or, xor).
// It takes the bitwise instruction to expand, the associated machine basic
// block, and the associated X86 opcodes for reg/reg and reg/imm.