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| author | Michael Liao <michael.liao@intel.com> | 2012-09-07 05:13:00 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2012-09-07 05:13:00 +0000 |
| commit | b7cd3419012622fa88ffc9ed1f94ed11c96ac9ce (patch) | |
| tree | 0a823cbe70c9ee0a13dcc6704e486a4bce8895fa /llvm/lib/CodeGen | |
| parent | 1fde8ece371a86fe3aae232e9d143fbd8dc34d08 (diff) | |
| download | bcm5719-llvm-b7cd3419012622fa88ffc9ed1f94ed11c96ac9ce.tar.gz bcm5719-llvm-b7cd3419012622fa88ffc9ed1f94ed11c96ac9ce.zip | |
Stop emitting lifetime region info when stack coloring is not enabled in O0
- this should fix PR13780
llvm-svn: 163370
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index b587884b504..1eb251d0a68 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -5218,6 +5218,12 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) { } case Intrinsic::lifetime_start: case Intrinsic::lifetime_end: { + // Stack coloring is not enabled in O0, discard region information. + if (TM.getOptLevel() == CodeGenOpt::None) { + if (Intrinsic == Intrinsic::lifetime_start) + setValue(&I, DAG.getUNDEF(TLI.getPointerTy())); + return 0; + } SDValue Ops[2]; AllocaInst *LifetimeObject =dyn_cast_or_null<AllocaInst>( GetUnderlyingObject(I.getArgOperand(1), TD)); |
