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Completely disable tail calls when fast-isel is enabled, as fast-isel

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doesn't currently support dealing with this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112341 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-08-28 00:51:03 +00:00
parent 7258df71fa
commit badcda4afa
2 changed files with 15 additions and 4 deletions
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5
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -4649,6 +4649,11 @@ void SelectionDAGBuilder::LowerCallTo(ImmutableCallSite CS, SDValue Callee,
!isInTailCallPosition(CS, CS.getAttributes().getRetAttributes(), TLI))
isTailCall = false;
// If there's a possibility that fast-isel has already selected some amount
// of the current basic block, don't emit a tail call.
if (isTailCall && EnableFastISel)
isTailCall = false;
std::pair<SDValue,SDValue> Result =
TLI.LowerCallTo(getRoot(), RetTy,
CS.paramHasAttr(0, Attribute::SExt),