diff options
Diffstat (limited to 'clang/test/CIR/CodeGen/variable-decomposition.cpp')
| -rw-r--r-- | clang/test/CIR/CodeGen/variable-decomposition.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/clang/test/CIR/CodeGen/variable-decomposition.cpp b/clang/test/CIR/CodeGen/variable-decomposition.cpp new file mode 100644 index 0000000..022d06a --- /dev/null +++ b/clang/test/CIR/CodeGen/variable-decomposition.cpp @@ -0,0 +1,55 @@ +// RUN: %clang_cc1 -std=c++17 -triple x86_64-pc-linux-gnu -fclangir -emit-cir %s -o %t.cir +// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s +// RUN: %clang_cc1 -std=c++17 -triple x86_64-pc-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll +// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s +// RUN: %clang_cc1 -std=c++17 -triple x86_64-pc-linux-gnu -emit-llvm %s -o %t.ll +// RUN: FileCheck --check-prefix=OGCG --input-file=%t.ll %s + +struct some_struct { + int a; + float b; +}; + +float function() { + auto[a, b] = some_struct{1, 2.f}; + + return a + b; +} + +// CIR-LABEL: cir.func dso_local @_Z8functionv() -> !cir.float +// CIR: %[[RETVAL:.+]] = cir.alloca !cir.float, !cir.ptr<!cir.float>, ["__retval"] +// CIR: %[[STRUCT:.+]] = cir.alloca !rec_some_struct, !cir.ptr<!rec_some_struct>, [""] +// CIR: %[[MEMBER_A:.+]] = cir.get_member %[[STRUCT]][0] {name = "a"} : !cir.ptr<!rec_some_struct> -> !cir.ptr<!s32i> +// CIR: %[[LOAD_A:.+]] = cir.load align(4) %[[MEMBER_A]] : !cir.ptr<!s32i>, !s32i +// CIR: %[[CAST_A:.+]] = cir.cast(int_to_float, %[[LOAD_A]] : !s32i), !cir.float +// CIR: %[[MEMBER_B:.+]] = cir.get_member %[[STRUCT]][1] {name = "b"} : !cir.ptr<!rec_some_struct> -> !cir.ptr<!cir.float> +// CIR: %[[LOAD_B:.+]] = cir.load align(4) %[[MEMBER_B]] : !cir.ptr<!cir.float>, !cir.float +// CIR: %[[ADD:.+]] = cir.binop(add, %[[CAST_A]], %[[LOAD_B]]) : !cir.float +// CIR: cir.store %[[ADD]], %[[RETVAL]] : !cir.float, !cir.ptr<!cir.float> +// CIR: %[[RET:.+]] = cir.load %[[RETVAL]] : !cir.ptr<!cir.float>, !cir.float +// CIR: cir.return %[[RET]] : !cir.float + +// LLVM-LABEL: define dso_local float @_Z8functionv() +// LLVM: %[[RETVAL:.+]] = alloca float, i64 1 +// LLVM: %[[STRUCT:.+]] = alloca %struct.some_struct, i64 1 +// LLVM: %[[GEP_A:.+]] = getelementptr %struct.some_struct, ptr %[[STRUCT]], i32 0, i32 0 +// LLVM: %[[LOAD_A:.+]] = load i32, ptr %[[GEP_A]] +// LLVM: %[[CAST_A:.+]] = sitofp i32 %[[LOAD_A]] to float +// LLVM: %[[GEP_B:.+]] = getelementptr %struct.some_struct, ptr %[[STRUCT]], i32 0, i32 1 +// LLVM: %[[LOAD_B:.+]] = load float, ptr %[[GEP_B]] +// LLVM: %[[ADD:.+]] = fadd float %[[CAST_A]], %[[LOAD_B]] +// LLVM: store float %[[ADD]], ptr %[[RETVAL]] +// LLVM: %[[RET:.+]] = load float, ptr %[[RETVAL]] +// LLVM: ret float %[[RET]] + +// OGCG: @__const._Z8functionv.{{.*}} = private unnamed_addr constant %struct.some_struct { i32 1, float 2.000000e+00 } +// OGCG-LABEL: define dso_local noundef float @_Z8functionv() +// OGCG: %[[STRUCT:.+]] = alloca %struct.some_struct +// OGCG: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[STRUCT]], ptr align 4 @__const._Z8functionv.{{.*}}, i64 8, i1 false) +// OGCG: %[[GEP_A:.+]] = getelementptr inbounds nuw %struct.some_struct, ptr %[[STRUCT]], i32 0, i32 0 +// OGCG: %[[LOAD_A:.+]] = load i32, ptr %[[GEP_A]] +// OGCG: %[[CAST_A:.+]] = sitofp i32 %[[LOAD_A]] to float +// OGCG: %[[GEP_B:.+]] = getelementptr inbounds nuw %struct.some_struct, ptr %[[STRUCT]], i32 0, i32 1 +// OGCG: %[[LOAD_B:.+]] = load float, ptr %[[GEP_B]] +// OGCG: %[[ADD:.+]] = fadd float %[[CAST_A]], %[[LOAD_B]] +// OGCG: ret float %[[ADD]] |