-
-
Notifications
You must be signed in to change notification settings - Fork 2.2k
Labels
BugThis tag is applied to issues which reports bugs.This tag is applied to issues which reports bugs.Compilers: MSVCBugs/feature requests, that are related to compiling V programs with MSVC.Bugs/feature requests, that are related to compiling V programs with MSVC.
Description
Describe the bug
A msvc int_min bug cause v compiler fail.
Reproduction Steps
In vlib/v/ast/comptime_const_values.v
// i32 tries to return a `ComptTimeConstValue` as `i32` type.
pub fn (val ComptTimeConstValue) i32() ?i32 {
x := val.i64()?
if x > -2147483649 && x < 2147483648 {
return i32(x)
}
return none
}
will fail under msvc.
And I create a test file for this bug:
bug.c
#include <stdio.h>
#include <stdint.h>
typedef int64_t i64;
void main() {
i64 x = 2147483647;
if (x > -2147483649 && x < 2147483648) {
printf("x=%lld\n", x);
}
}compile it with msvc
cl bug.c
Expected Behavior
output
2147483647
Current Behavior
nothing output
Possible Solution
need a workaround for this.
Additional Information/Context
tcc, gcc, clang has no this bug
V version
V 0.4.11 84f6816.0a4a807
Environment details (OS name and version, etc.)
| V full version | V 0.4.11 84f6816.0a4a807 |
|---|---|
| OS | linux, Ubuntu 24.04.3 LTS |
| Processor | 8 cpus, 64bit, little endian, Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz |
| Memory | 7.52GB/15.51GB |
| V executable | /media/HD/github/kbkpbot/v/v |
| V last modified time | 2025-09-09 11:32:00 |
| V home dir | OK, value: /media/HD/github/kbkpbot/v |
| VMODULES | OK, value: /home/mars/.vmodules |
| VTMP | OK, value: /tmp/v_1000 |
| Current working dir | OK, value: /home/mars/v/bug/64 |
| Git version | git version 2.43.0 |
| V git status | weekly.2025.36-44-g0a4a8078 |
| .git/config present | true |
| cc version | cc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0 |
| gcc version | gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0 |
| clang version | Ubuntu clang version 18.1.3 (1ubuntu1) |
| tcc version | tcc version 0.9.28rc 2025-02-13 HEAD@f8bd136d (x86_64 Linux) |
| tcc git status | thirdparty-linux-amd64 696c1d84 |
| emcc version | N/A |
| glibc version | ldd (Ubuntu GLIBC 2.39-0ubuntu8.5) 2.39 |
Note
You can use the 👍 reaction to increase the issue's priority for developers.
Please note that only the 👍 reaction to the issue itself counts as a vote.
Other reactions and those to comments will not be taken into account.
Reactions are currently unavailable
Metadata
Metadata
Assignees
Labels
BugThis tag is applied to issues which reports bugs.This tag is applied to issues which reports bugs.Compilers: MSVCBugs/feature requests, that are related to compiling V programs with MSVC.Bugs/feature requests, that are related to compiling V programs with MSVC.