📄 vrp21.c
字号:
/* { dg-do compile } *//* { dg-options "-O1 -ftree-vrp -fdump-tree-vrp" } */extern void link_error ();void test01(unsigned int a, unsigned int b){ unsigned int x = 0x80000000; if (a < x) if (b < x) if (a > 5) if (a + b == 0U) link_error ();}void test02(unsigned int a, unsigned int b){ unsigned int x = 0x80000000; if (a > x) if (b < x) if (a - b == 1U) link_error ();}/* { dg-final { scan-tree-dump-times "link_error" 0 "vrp" } } *//* { dg-final { cleanup-tree-dump "vrp" } } */
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -