| Issue |
165088
|
| Summary |
[SimplifyCFG] Assertion `IterCnt++ < 1000 && "Iterative simplification didn't converge!"' failed.
|
| Labels |
crash-on-valid,
llvm:transforms,
generated by fuzzer
|
| Assignees |
dtcxzyw
|
| Reporter |
dtcxzyw
|
Reproducer:
```
; bin/opt -passes="simplifycfg<switch-range-to-icmp>" test.ll -S
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define fastcc i32 @func_209(i8 %conv74) {
entry:
%cmp.i.i = icmp eq i8 %conv74, 0
%cond = icmp ne i8 %conv74, 0
%cmp.i44.i.old = icmp ugt i8 %conv74, 0
%or.cond = and i1 %cond, %cmp.i44.i.old
br i1 %or.cond, label %safe_mod_func_int16_t_s_s.exit.i, label %cond.false.i45.i
safe_div_func_uint16_t_u_u.exit.i: ; preds = %safe_mod_func_int16_t_s_s.exit.i
%cmp.i44.i.old.old = icmp ugt i8 %conv74, 1
br i1 %cmp.i44.i.old.old, label %safe_mod_func_int16_t_s_s.exit.i, label %cond.false.i45.i
cond.false.i45.i: ; preds = %safe_div_func_uint16_t_u_u.exit.i, %entry
br label %safe_mod_func_int16_t_s_s.exit.i
safe_mod_func_int16_t_s_s.exit.i: ; preds = %cond.false.i45.i, %safe_div_func_uint16_t_u_u.exit.i, %entry
br i1 %cmp.i.i, label %func_238.exit, label %safe_div_func_uint16_t_u_u.exit.i
func_238.exit: ; preds = %safe_mod_func_int16_t_s_s.exit.i
ret i32 0
}
```
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