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comment cleanup, reduce nesting.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75398 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-07-11 22:50:33 +00:00
parent a3c8d38795
commit 2514278b83
2 changed files with 11 additions and 8 deletions
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13
lib/Target/X86/X86ISelDAGToDAG.cpp
View File

@ -1331,12 +1331,13 @@ bool X86DAGToDAGISel::SelectLEAAddr(SDValue Op, SDValue N,
if (AM.Disp && (AM.Base.Reg.getNode() || AM.IndexReg.getNode()))
Complexity++;
if (Complexity > 2) {
SDValue Segment;
getAddressOperands(AM, Base, Scale, Index, Disp, Segment);
return true;
}
return false;
// If it isn't worth using an LEA, reject it.
if (Complexity < 2)
return false;
SDValue Segment;
getAddressOperands(AM, Base, Scale, Index, Disp, Segment);
return true;
}
/// SelectTLSADDRAddr - This is only run on TargetGlobalTLSAddress nodes.

6
lib/Target/X86/X86Instr64bit.td
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@ -1409,7 +1409,9 @@ def ATOMUMAX64: I<0, Pseudo, (outs GR64:$dst),(ins i64mem:$ptr, GR64:$val),
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//
// ConstantPool GlobalAddress, ExternalSymbol, and JumpTable
// ConstantPool GlobalAddress, ExternalSymbol, and JumpTable when not in small
// code model mode, should use 'movabs'. FIXME: This is really a hack, the
// 'movabs' predicate should handle this sort of thing.
def : Pat<(i64 (X86Wrapper tconstpool :$dst)),
(MOV64ri tconstpool :$dst)>, Requires<[NotSmallCode]>;
def : Pat<(i64 (X86Wrapper tjumptable :$dst)),
@ -1421,7 +1423,7 @@ def : Pat<(i64 (X86Wrapper texternalsym:$dst)),
// If we have small model and -static mode, it is safe to store global addresses
// directly as immediates. FIXME: This is really a hack, the 'imm' predicate
// should handle this sort of thing.
// for MOV64mi32 should handle this sort of thing.
def : Pat<(store (i64 (X86Wrapper tconstpool:$src)), addr:$dst),
(MOV64mi32 addr:$dst, tconstpool:$src)>,
Requires<[SmallCode, IsStatic]>;