GlobalISel: widen booleans by zero-extending to a byte.

A bool is represented by a single byte, which the ARM ABI requires to be either
0 or 1. So we cannot use G_ANYEXT when legalizing the type.

llvm-svn: 298439

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index e26473d9a0d..dca5d616779 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -433,7 +433,7 @@ LegalizerHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx, LLT WideTy) {
            "illegal to increase number of bytes modified by a store");
 
     unsigned SrcExt = MRI.createGenericVirtualRegister(WideTy);
-    MIRBuilder.buildAnyExt(SrcExt, MI.getOperand(0).getReg());
+    MIRBuilder.buildZExt(SrcExt, MI.getOperand(0).getReg());
     MIRBuilder.buildStore(SrcExt, MI.getOperand(1).getReg(),
                           **MI.memoperands_begin());
     MI.eraseFromParent();