llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang

@llvm/pr-subscribers-clangir

Author: Amr Hesham (AmrDeveloper)

<details>
<summary>Changes</summary>

Use ZeroAttr as a zeroinitializer for ComplexType, similar to what we did in 
CXXScalarValueInitExpr

https://github.com/llvm/llvm-project/issues/141365

---
Full diff: https://github.com/llvm/llvm-project/pull/148033.diff


2 Files Affected:

- (modified) clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp (+2-6) 
- (modified) clang/test/CIR/CodeGen/complex.cpp (+2-2) 


``````````diff
diff --git a/clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp 
b/clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp
index 24a9bf13e1880..9564069901f0a 100644
--- a/clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenExprComplex.cpp
@@ -291,12 +291,8 @@ mlir::Value ComplexExprEmitter::VisitInitListExpr(const 
InitListExpr *e) {
   }
 
   assert(e->getNumInits() == 0 && "Unexpected number of inits");
-  QualType complexElemTy =
-      e->getType()->castAs<clang::ComplexType>()->getElementType();
-  mlir::Type complexElemLLVMTy = cgf.convertType(complexElemTy);
-  mlir::TypedAttr defaultValue = builder.getZeroInitAttr(complexElemLLVMTy);
-  auto complexAttr = cir::ConstComplexAttr::get(defaultValue, defaultValue);
-  return builder.create<cir::ConstantOp>(loc, complexAttr);
+  mlir::Type compleTy = cgf.convertType(e->getType());
+  return builder.getNullValue(compleTy, loc);
 }
 
 mlir::Value
diff --git a/clang/test/CIR/CodeGen/complex.cpp 
b/clang/test/CIR/CodeGen/complex.cpp
index 6e7e889df146f..f33909150044e 100644
--- a/clang/test/CIR/CodeGen/complex.cpp
+++ b/clang/test/CIR/CodeGen/complex.cpp
@@ -31,7 +31,7 @@ float _Complex cf2 = { 1.0f, 2.0f };
 void foo() { int _Complex c = {}; }
 
 // CIR: %[[INIT:.*]] = cir.alloca !cir.complex<!s32i>, 
!cir.ptr<!cir.complex<!s32i>>, ["c", init]
-// CIR: %[[COMPLEX:.*]] = cir.const #cir.const_complex<#cir.int<0> : !s32i, 
#cir.int<0> : !s32i> : !cir.complex<!s32i>
+// CIR: %[[COMPLEX:.*]] = cir.const #cir.zero : !cir.complex<!s32i>
 // CIR: cir.store{{.*}} %[[COMPLEX]], %[[INIT]] : !cir.complex<!s32i>, 
!cir.ptr<!cir.complex<!s32i>>
 
 // LLVM: %[[INIT:.*]] = alloca { i32, i32 }, i64 1, align 4
@@ -741,7 +741,7 @@ void foo29() {
 }
 
 // CIR: %[[INIT:.*]] = cir.alloca !cir.complex<!s32i>, 
!cir.ptr<!cir.complex<!s32i>>, ["a", init]
-// CIR: %[[COMPLEX:.*]] = cir.const #cir.const_complex<#cir.int<0> : !s32i, 
#cir.int<0> : !s32i> : !cir.complex<!s32i>
+// CIR: %[[COMPLEX:.*]] = cir.const #cir.zero : !cir.complex<!s32i>
 // CIR: cir.store{{.*}} %[[COMPLEX]], %[[INIT]] : !cir.complex<!s32i>, 
!cir.ptr<!cir.complex<!s32i>>
 
 // LLVM: %[[INIT:.*]] = alloca { i32, i32 }, i64 1, align 4

``````````

</details>


https://github.com/llvm/llvm-project/pull/148033
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