blob: 34ba0ff725581c67fcfe5ae9eaf751cccf6a1ab2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
// RUN: FileCheck --input-file=%t.cir %s --check-prefix=CIR
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
// RUN: FileCheck --input-file=%t-cir.ll %s --check-prefix=LLVM
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
// RUN: FileCheck --input-file=%t.ll %s --check-prefix=OGCG
typedef unsigned long size_type;
size_type size(unsigned long *_start, unsigned long *_finish) {
// CIR-LABEL: cir.func dso_local @_Z4sizePmS_
// CIR: %[[D:.*]] = cir.ptr_diff {{.*}} : !cir.ptr<!u64i> -> !s64i
// CIR: %[[U:.*]] = cir.cast integral %[[D]] : !s64i -> !u64i
// CIR: cir.return {{.*}} : !u64i
// LLVM-LABEL: define dso_local {{.*}}i64 @_Z4sizePmS_(
// LLVM: %[[IA:.*]] = ptrtoint ptr %{{.*}} to i64
// LLVM: %[[IB:.*]] = ptrtoint ptr %{{.*}} to i64
// LLVM: %[[SUB:.*]] = sub i64 %[[IA]], %[[IB]]
// LLVM: %[[Q:.*]] = sdiv exact i64 %[[SUB]], 8
// LLVM: store i64 %[[Q]], ptr %[[RETADDR:.*]], align
// LLVM: %[[RET:.*]] = load i64, ptr %[[RETADDR]], align
// LLVM: ret i64 %[[RET]]
// OGCG-LABEL: define dso_local {{.*}}i64 @_Z4sizePmS_(
// OGCG: %[[IA:.*]] = ptrtoint ptr %{{.*}} to i64
// OGCG: %[[IB:.*]] = ptrtoint ptr %{{.*}} to i64
// OGCG: %[[SUB:.*]] = sub i64 %[[IA]], %[[IB]]
// OGCG: %[[Q:.*]] = sdiv exact i64 %[[SUB]], 8
// OGCG: ret i64 %[[Q]]
return static_cast<size_type>(_finish - _start);
}
|
