Until we have a "ALIGN" pseudo instruction, have asm printer emitted a .align
to ensure the instruction that follows a TBB (when the number of table entries
is odd) is 2-byte aligned.
Patch by Sandeep Patel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77705 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
index a80a88e..5feafb4 100644
--- a/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
+++ b/lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
@@ -988,6 +988,13 @@
if (i != e-1)
O << '\n';
}
+
+ // Make sure the instruction that follows TBB is 2-byte aligned.
+ // FIXME: Constant island pass should insert an "ALIGN" instruction instead.
+ if (ByteOffset && (JTBBs.size() & 1)) {
+ O << '\n';
+ EmitAlignment(1);
+ }
}
void ARMAsmPrinter::printTBAddrMode(const MachineInstr *MI, int OpNum) {