[clang] [CIR][NFC] Add tests for ThrowOp with built-in vector (PR #163640)

[Amr Hesham via cfe-commits]

https://github.com/AmrDeveloper created https://github.com/llvm/llvm-project/pull/163640

Add test functions for ThrowOp with built-in vector type 

Issue #163601

>From 937a94e5237288ea0bfefcdc106fe064dcefbc6f Mon Sep 17 00:00:00 2001
From: Amr Hesham <amr96 at programmer.net>
Date: Wed, 15 Oct 2025 23:28:48 +0200
Subject: [PATCH] [CIR][NFC] Add tests for ThrowOp with built-in vector type

---
 clang/test/CIR/CodeGen/throws.cpp | 52 +++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/clang/test/CIR/CodeGen/throws.cpp b/clang/test/CIR/CodeGen/throws.cpp
index 4255d436d4a32..89cb0729c636c 100644
--- a/clang/test/CIR/CodeGen/throws.cpp
+++ b/clang/test/CIR/CodeGen/throws.cpp
@@ -144,3 +144,55 @@ void throw_complex_expr() {
 // OGCG: store float 0x3FF19999A0000000, ptr %[[EXCEPTION_REAL]], align 16
 // OGCG: store float 0x40019999A0000000, ptr %[[EXCEPTION_IMAG]], align 4
 // OGCG: call void @__cxa_throw(ptr %[[EXCEPTION_ADDR]], ptr @_ZTICf, ptr null)
+
+void throw_vector_type() {
+  typedef int vi4 __attribute__((vector_size(16)));
+  vi4 a;
+  throw a;
+}
+
+// CIR: %[[A_ADDR:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["a"]
+// CIR: %[[EXCEPTION_ADDR:.*]] = cir.alloc.exception 16 -> !cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: %[[TMP_A:.*]] = cir.load{{.*}} %[[A_ADDR]] : !cir.ptr<!cir.vector<4 x !s32i>>, !cir.vector<4 x !s32i>
+// CIR: cir.store{{.*}} %[[TMP_A]], %[[EXCEPTION_ADDR]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: cir.throw %[[EXCEPTION_ADDR]] : !cir.ptr<!cir.vector<4 x !s32i>>, @_ZTIDv4_i
+// CIR: cir.unreachable
+
+// LLVM: %[[A_ADDR:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[EXCEPTION_ADDR:.*]] = call ptr @__cxa_allocate_exception(i64 16)
+// LLVM: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[A_ADDR]], align 16
+// LLVM: store <4 x i32> %[[TMP_A]], ptr %[[EXCEPTION_ADDR]], align 16
+// LLVM: call void @__cxa_throw(ptr %[[EXCEPTION_ADDR]], ptr @_ZTIDv4_i, ptr null)
+
+// OGCG: %[[A_ADDR:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[EXCEPTION_ADDR:.*]] = call ptr @__cxa_allocate_exception(i64 16)
+// OGCG: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[A_ADDR]], align 16
+// OGCG: store <4 x i32> %[[TMP_A]], ptr %[[EXCEPTION_ADDR]], align 16
+// OGCG: call void @__cxa_throw(ptr %[[EXCEPTION_ADDR]], ptr @_ZTIDv4_i, ptr null)
+// OGCG: unreachable
+
+void throw_ext_vector_type() {
+  typedef int vi4 __attribute__((ext_vector_type(4)));
+  vi4 a;
+  throw a;
+}
+
+// CIR: %[[A_ADDR:.*]] = cir.alloca !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>, ["a"]
+// CIR: %[[EXCEPTION_ADDR:.*]] = cir.alloc.exception 16 -> !cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: %[[TMP_A:.*]] = cir.load{{.*}} %[[A_ADDR]] : !cir.ptr<!cir.vector<4 x !s32i>>, !cir.vector<4 x !s32i>
+// CIR: cir.store{{.*}} %[[TMP_A]], %[[EXCEPTION_ADDR]] : !cir.vector<4 x !s32i>, !cir.ptr<!cir.vector<4 x !s32i>>
+// CIR: cir.throw %[[EXCEPTION_ADDR]] : !cir.ptr<!cir.vector<4 x !s32i>>, @_ZTIDv4_i
+// CIR: cir.unreachable
+
+// LLVM: %[[A_ADDR:.*]] = alloca <4 x i32>, i64 1, align 16
+// LLVM: %[[EXCEPTION_ADDR:.*]] = call ptr @__cxa_allocate_exception(i64 16)
+// LLVM: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[A_ADDR]], align 16
+// LLVM: store <4 x i32> %[[TMP_A]], ptr %[[EXCEPTION_ADDR]], align 16
+// LLVM: call void @__cxa_throw(ptr %[[EXCEPTION_ADDR]], ptr @_ZTIDv4_i, ptr null)
+
+// OGCG: %[[A_ADDR:.*]] = alloca <4 x i32>, align 16
+// OGCG: %[[EXCEPTION_ADDR:.*]] = call ptr @__cxa_allocate_exception(i64 16)
+// OGCG: %[[TMP_A:.*]] = load <4 x i32>, ptr %[[A_ADDR]], align 16
+// OGCG: store <4 x i32> %[[TMP_A]], ptr %[[EXCEPTION_ADDR]], align 16
+// OGCG: call void @__cxa_throw(ptr %[[EXCEPTION_ADDR]], ptr @_ZTIDv4_i, ptr null)
+// OGCG: unreachable