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Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp')
-rw-r--r--llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp15
1 files changed, 1 insertions, 14 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
index 3e59d0d..3a1a237 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
@@ -128,20 +128,7 @@ void FunctionLoweringInfo::set(const Function &fn, MachineFunction &mf,
for (const Instruction &I : BB) {
if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
Type *Ty = AI->getAllocatedType();
- Align TyPrefAlign = MF->getDataLayout().getPrefTypeAlign(Ty);
- // The "specified" alignment is the alignment written on the alloca,
- // or the preferred alignment of the type if none is specified.
- //
- // (Unspecified alignment on allocas will be going away soon.)
- Align SpecifiedAlign = AI->getAlign();
-
- // If the preferred alignment of the type is higher than the specified
- // alignment of the alloca, promote the alignment, as long as it doesn't
- // require realigning the stack.
- //
- // FIXME: Do we really want to second-guess the IR in isel?
- Align Alignment =
- std::max(std::min(TyPrefAlign, StackAlign), SpecifiedAlign);
+ Align Alignment = AI->getAlign();
// Static allocas can be folded into the initial stack frame
// adjustment. For targets that don't realign the stack, don't