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ExprTypeConvert will already do this transformation, no need to specialize

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it here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2431 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-05-02 17:38:55 +00:00
parent 1f8d13c361
commit 872265ee1b
1 changed files with 0 additions and 21 deletions
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21
lib/Transforms/LevelRaise.cpp
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@ -47,7 +47,6 @@ static inline bool isReinterpretingCast(const CastInst *CI) {
}
// Peephole optimize the following instructions:
// %t1 = cast ? to x *
// %t2 = add x * %SP, %t1 ;; Constant must be 2nd operand
@ -191,26 +190,6 @@ static bool PeepholeOptimize(BasicBlock *BB, BasicBlock::iterator &BI) {
return true;
}
// Peephole optimize the following instructions:
// %tmp = cast <ty> %V to <ty2>
// %V = cast <ty2> %tmp to <ty3> ; Where ty & ty2 are same size
//
// Into: cast <ty> %V to <ty3>
//
if (SrcI)
if (CastInst *CSrc = dyn_cast<CastInst>(SrcI))
if (isReinterpretingCast(CI) + isReinterpretingCast(CSrc) < 2) {
// We can only do c-c elimination if, at most, one cast does a
// reinterpretation of the input data.
//
// If legal, make this cast refer the the original casts argument!
//
PRINT_PEEPHOLE2("cast-cast:in ", CI, CSrc);
CI->setOperand(0, CSrc->getOperand(0));
PRINT_PEEPHOLE1("cast-cast:out", CI);
return true;
}
// Check to see if it's a cast of an instruction that does not depend on the
// specific type of the operands to do it's job.
if (!isReinterpretingCast(CI)) {