@shlExact causes illegal hardware instruction on macOS x86_64 #16466
Description
Zig Version
0.11.0-dev.4059+17255bed4
Steps to Reproduce and Observed Behavior
$ cat zig-crash.zig
pub fn main() void {
const N = @shlExact(1, @as(usize, 3));
_ = N;
}
$ zig build-exe zig-crash.zig
zsh: illegal hardware instruction zig build-exe zig-crash.zig
Running zig under a debugger shows that it crashes here:
Process 6618 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
frame #0: 0x00000001001d1f0a zig`type.Type.intInfo + 634
zig`type.Type.intInfo:
-> 0x1001d1f0a <+634>: ud2
0x1001d1f0c <+636>: andl %edi, %edi
Target 0: (zig) stopped.
(lldb) up
frame #1: 0x00000001005de3f6 zig`value.Value.shlWithOverflowScalar + 54
zig`value.Value.shlWithOverflowScalar:
-> 0x1005de3f6 <+54>: movdqu (%rbp), %xmm0
0x1005de3fb <+59>: movdqa %xmm0, 0x10(%rsp)
0x1005de401 <+65>: leaq 0x30(%rsp), %rdi
0x1005de406 <+70>: leaq 0x10(%rsp), %rsi
(lldb) up
frame #2: 0x00000001005de91c zig`value.Value.shlWithOverflow + 268
zig`value.Value.shlWithOverflow:
-> 0x1005de91c <+268>: movq 0x158(%rsp), %rax
0x1005de924 <+276>: movq %rax, 0x20(%rbp)
0x1005de928 <+280>: movups 0x138(%rsp), %xmm0
0x1005de930 <+288>: movups 0x148(%rsp), %xmm1
Expected Behavior
The compiler should not crash. I'm not sure if this should produce a compile error (since the first argument is comptime_int) or compile successfully.