diggerlin wrote:
The patch exposes an underlying issue. I am able to reproduce the crash without
the patch using the following IR
bash> cat reduced.ll
```
target datalayout = "E-m:e-Fi64-i64:64-i128:128-n32:64"
target triple = "powerpc64"
define ptr @xe_migrate_copy(i1 %tobool, i1 %tobool6) {
entry:
%src_L0 = alloca i64, align 8
br label %if.then36
if.then36: ; preds = %if.then36, %entry
%0 = load i32, ptr null, align 4
%tobool37.not = icmp eq i32 %0, 0
%tobool.tobool6 = select i1 %tobool37.not, i1 %tobool, i1 %tobool6
%1 = load i64, ptr %src_L0, align 8
%conv55 = trunc i64 %1 to i32
%call57 = call i32 null(ptr null, ptr null, i64 0, i1 %tobool.tobool6, i64 0,
i1 false, i32 %conv55, i64 0, i1 false)
br label %if.then36
}
```
https://github.com/llvm/llvm-project/pull/144594
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