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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-02-06 12:06:18 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-02-06 12:06:18 +0000 |
| commit | 699ddcbcb32e933f5a2a63c41c80832da91942ad (patch) | |
| tree | ff9c27806e8963138ea1c0c16793bf7bd3346516 | |
| parent | 7ba962fe4ac04acd12db803cbc255b0c00a6e4ea (diff) | |
| download | llvm-699ddcbcb32e933f5a2a63c41c80832da91942ad.tar.gz llvm-699ddcbcb32e933f5a2a63c41c80832da91942ad.tar.bz2 llvm-699ddcbcb32e933f5a2a63c41c80832da91942ad.tar.xz | |
X86: Don't call malloc for 4 bits. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149866 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 677ecf5fe5..0310a15b1d 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -39,7 +39,6 @@ #include "llvm/MC/MCContext.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCSymbol.h" -#include "llvm/ADT/BitVector.h" #include "llvm/ADT/SmallSet.h" #include "llvm/ADT/Statistic.h" #include "llvm/ADT/StringExtras.h" @@ -5412,7 +5411,7 @@ X86TargetLowering::LowerVECTOR_SHUFFLEv8i16(SDValue Op, // mask values count as coming from any quadword, for better codegen. unsigned LoQuad[] = { 0, 0, 0, 0 }; unsigned HiQuad[] = { 0, 0, 0, 0 }; - BitVector InputQuads(4); + std::bitset<4> InputQuads; for (unsigned i = 0; i < 8; ++i) { unsigned *Quad = i < 4 ? LoQuad : HiQuad; int EltIdx = SVOp->getMaskElt(i); @@ -5454,8 +5453,8 @@ X86TargetLowering::LowerVECTOR_SHUFFLEv8i16(SDValue Op, bool V2Used = InputQuads[2] || InputQuads[3]; if (Subtarget->hasSSSE3()) { if (InputQuads.count() == 2 && V1Used && V2Used) { - BestLoQuad = InputQuads.find_first(); - BestHiQuad = InputQuads.find_next(BestLoQuad); + BestLoQuad = InputQuads[0] ? 0 : 1; + BestHiQuad = InputQuads[2] ? 2 : 3; } if (InputQuads.count() > 2) { BestLoQuad = -1; |