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remove nvload and two patterns that use it which are

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better done by dag combine.

llvm-svn: 97633
This commit is contained in:
Chris Lattner 2010-03-03 02:14:54 +00:00
parent 6ecb4d7b7c
commit 2e934b978c
1 changed files with 0 additions and 23 deletions
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23
lib/Target/X86/X86InstrInfo.td
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@ -417,23 +417,6 @@ def loadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
return false;
}]>;
def nvloadi32 : PatFrag<(ops node:$ptr), (i32 (unindexedload node:$ptr)), [{
LoadSDNode *LD = cast<LoadSDNode>(N);
if (const Value *Src = LD->getSrcValue())
if (const PointerType *PT = dyn_cast<PointerType>(Src->getType()))
if (PT->getAddressSpace() > 255)
return false;
if (LD->isVolatile())
return false;
ISD::LoadExtType ExtType = LD->getExtensionType();
if (ExtType == ISD::NON_EXTLOAD)
return true;
if (ExtType == ISD::EXTLOAD)
return LD->getAlignment() >= 4;
return false;
}]>;
def loadi8 : PatFrag<(ops node:$ptr), (i8 (dsload node:$ptr))>;
def loadi64 : PatFrag<(ops node:$ptr), (i64 (dsload node:$ptr))>;
def loadf32 : PatFrag<(ops node:$ptr), (f32 (dsload node:$ptr))>;
@ -4416,12 +4399,6 @@ def : Pat<(i16 (anyext GR8 :$src)), (MOVZX16rr8 GR8 :$src)>;
def : Pat<(i32 (anyext GR8 :$src)), (MOVZX32rr8 GR8 :$src)>;
def : Pat<(i32 (anyext GR16:$src)), (MOVZX32rr16 GR16:$src)>;
// (and (i32 load), 255) -> (zextload i8)
def : Pat<(i32 (and (nvloadi32 addr:$src), (i32 255))),
(MOVZX32rm8 addr:$src)>;
def : Pat<(i32 (and (nvloadi32 addr:$src), (i32 65535))),
(MOVZX32rm16 addr:$src)>;
//===----------------------------------------------------------------------===//
// Some peepholes
//===----------------------------------------------------------------------===//