Add an "alignment" field to the MachineFunction object. It makes more sense to
have the alignment be calculated up front, and have the back-ends obey whatever
alignment is decided upon.
This allows for future work that would allow for precise no-op placement and the
like.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74564 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 87f8fb0..cf17599 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -428,11 +428,17 @@
}
}
-
MVT PPCTargetLowering::getSetCCResultType(MVT VT) const {
return MVT::i32;
}
+/// getFunctionAlignment - Return the function alignment.
+unsigned PPCTargetLowering::getFunctionAlignment(const Function *F) const {
+ if (getTargetMachine().getSubtarget<PPCSubtarget>().isDarwin())
+ return F->hasFnAttr(Attribute::OptimizeForSize) ? 2 : 4;
+ else
+ return 2;
+}
//===----------------------------------------------------------------------===//
// Node matching predicates, for use by the tblgen matching code.