Compiler bug: broken LLVM module found: Instruction does not dominate all uses!

[croscato-zz]

This two lines of code, when compiled with zig version 0.8.0-dev.1120+300ebbd56 results in the compile error bellow.

print("w: {d}\n", .{ if (char_count > kTgaCharPerLine) width * kTgaCharPerLine else width * char_count });
print("h: {d}\n", .{ if (char_count > kTgaCharPerLine) height * kTgaCharPerLine else height });

I've tried create a minimal version that cause the problem without success. When a extracted this two lines of code, with it's dependencies, variables e constants, to another project the error doesn't happen.

In this attached zip is the project, in the state that, when build gives the mentioned error.

bft2img.zip

Compile error

broken LLVM module found: Instruction does not dominate all uses!
  %554 = getelementptr inbounds %"struct:151:32", %"struct:151:32"* %66, i32 0, i32 0, !dbg !16451
  store i32 %438, i32* %554, align 4, !dbg !16452
Instruction does not dominate all uses!
  %553 = getelementptr inbounds %"struct:150:32", %"struct:150:32"* %65, i32 0, i32 0, !dbg !16442
  store i32 %430, i32* %553, align 4, !dbg !16445

This is a bug in the Zig compiler.thread 14719 panic:
Unable to dump stack trace: debug info stripped
bft2img...The following command terminated unexpectedly:
/usr/bin/zig build-exe /misc/projetos/util/bft2img/src/main.zig --cache-dir /misc/projetos/util/bft2img/zig-cache --global-cache-dir /home/croscato/.cache/zig --name bft2img --pkg-begin color /misc/projetos/util/bft2img/lib/color.zig --pkg-end --pkg-begin tga /misc/projetos/util/bft2img/lib/tga.zig --pkg-end -isystem /misc/projetos/util/bft2img/lib --enable-cache
error: the following build command failed with exit code 6:
/misc/projetos/util/bft2img/zig-cache/o/59ccf733c530ca41655279809d9aed7b/build /usr/bin/zig /misc/projetos/util/bft2img /misc/projetos/util/bft2img/zig-cache /home/croscato/.cache/zig

[Vexu]

I'm pretty sure this is a duplicate but I can't find the issue right now. Workaround should be as easy as assigning the if to a variable:

const foo = if (char_count > kTgaCharPerLine) width * kTgaCharPerLine else width * char_count };
print("w: {d}\n", .{foo});

[data-man]

I'm pretty sure this is a duplicate but I can't find the issue right now.

https://github.com/ziglang/zig/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+Instruction+does+not+dominate+all+uses

[g-w1]

#3882 #6302