Amr Hesham 143c37123b
[CIR] Upstream zero init for global variables (#133100)
This change adds zero initialization for global variables
2025-03-31 19:41:29 +02:00

45 lines
1.3 KiB
C++

// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o - 2>&1 | FileCheck %s
int a[10];
// CHECK: @a = dso_local global [10 x i32] zeroinitializer
int aa[10][5];
// CHECK: @aa = dso_local global [10 x [5 x i32]] zeroinitializer
extern int b[10];
// CHECK: @b = dso_local global [10 x i32] zeroinitializer
extern int bb[10][5];
// CHECK: @bb = dso_local global [10 x [5 x i32]] zeroinitializer
int c[10] = {};
// CHECK: @c = dso_local global [10 x i32] zeroinitializer
int d[3] = {1, 2, 3};
// CHECK: @d = dso_local global [3 x i32] [i32 1, i32 2, i32 3]
int dd[3][2] = {{1, 2}, {3, 4}, {5, 6}};
// CHECK: @dd = dso_local global [3 x [2 x i32]] [
// CHECK: [2 x i32] [i32 1, i32 2], [2 x i32]
// CHECK: [i32 3, i32 4], [2 x i32] [i32 5, i32 6]]
int e[10] = {1, 2};
// CHECK: @e = dso_local global [10 x i32] [i32 1, i32 2, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0]
int f[5] = {1, 2};
// CHECK: @f = dso_local global [5 x i32] [i32 1, i32 2, i32 0, i32 0, i32 0]
void func() {
int l[10];
}
// CHECK: define void @func()
// CHECK-NEXT: alloca [10 x i32], i64 1, align 16
void func2(int p[10]) {}
// CHECK: define void @func2(ptr {{%.*}})
// CHECK-NEXT: alloca ptr, i64 1, align 8
void func3(int pp[10][5]) {}
// CHECK: define void @func3(ptr {{%.*}})
// CHECK-NEXT: alloca ptr, i64 1, align 8