[CIR] Upstream type `bool` (#128601)

Support the type `bool` and the literals `true` and `false`. Add the
type `cir::BoolType` and the attribute `cir::BoolAttr` to ClangIR. Add
code in all the necessary places in ClangIR CodeGen to handle and to
recognize the type and the attribute.

Add test cases to existing tests func-simple.cpp and
global-var-simple.cpp.

1 files changed, 5 insertions, 1 deletions

diff --git a/clang/lib/CIR/CodeGen/CIRGenModule.cpp b/clang/lib/CIR/CodeGen/CIRGenModule.cpp
index c1d3265..d8acc99 100644
--- a/clang/lib/CIR/CodeGen/CIRGenModule.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenModule.cpp
@@ -141,7 +141,11 @@ void CIRGenModule::emitGlobalVarDefinition(const clang::VarDecl *vd,
       if (APValue *value = initDecl->evaluateValue()) {
         switch (value->getKind()) {
         case APValue::Int: {
-          initializer = builder.getAttr<cir::IntAttr>(type, value->getInt());
+          if (mlir::isa<cir::BoolType>(type))
+            initializer =
+                builder.getCIRBoolAttr(value->getInt().getZExtValue());
+          else
+            initializer = builder.getAttr<cir::IntAttr>(type, value->getInt());
           break;
         }
         case APValue::Float: {