[Issue 12833] New: switch statement does not work properly when -inline used

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=12833

          Issue ID: 12833
           Summary: switch statement does not work properly when -inline
                    used
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Keywords: wrong-code
          Severity: major
          Priority: P1
         Component: DMD
          Assignee: nob...@puremagic.com
          Reporter: j...@red.email.ne.jp

The following code does not work properly with -inline -- the program finishes
silently.
I tested on DMD2.065, git-head, and DMD1.076.

CODE:
import std.stdio;

ushort HIWORD(long x) { return cast(ushort)((x >> 16) & 0xFFFF); }

void test(int a)
{
    switch (HIWORD(a)) {
    case 1:
        writefln("it works!"); // this makes no output if -inline used
        break;
    default:
    }
}

void main()
{
    test(0x1_0000);
}

COMMAND:
dmd -inline -m32 -run test.d

ENVIRONMENT:
Windows 7 64-bit

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