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-rw-r--r--llvm/lib/CodeGen/RegAllocSimple.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/RegAllocSimple.cpp b/llvm/lib/CodeGen/RegAllocSimple.cpp
index 9ed6ad98953..925915ee771 100644
--- a/llvm/lib/CodeGen/RegAllocSimple.cpp
+++ b/llvm/lib/CodeGen/RegAllocSimple.cpp
@@ -324,6 +324,10 @@ bool RegAllocSimple::runOnMachineFunction(MachineFunction &Fn) {
MBB != MBBe; ++MBB)
AllocateBasicBlock(*MBB);
+ // Round stack allocation up to a nice alignment to keep the stack aligned
+ // FIXME: This is X86 specific! Move to frame manager
+ NumBytesAllocated = (NumBytesAllocated + 3) & ~3;
+
// Add prologue to the function...
RegInfo->emitPrologue(Fn, NumBytesAllocated);
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