Issue 83127
Summary [InstCombine] InstCombine gets stuck when simplifying selects
Labels llvm:instcombine, llvm:hang
Assignees dtcxzyw
Reporter dtcxzyw
    Reduced test case: https://godbolt.org/z/ds9eq96db
```
define i16 @func(i16 noundef %p_12) {
entry:
  %cmp1 = icmp ult i16 %p_12, 2
  %and1 = and i16 %p_12, 1
  %and2 = select i1 %cmp1, i16 %and1, i16 0
  %cmp2 = icmp eq i16 %and2, %p_12
  %and3 = select i1 %cmp2, i16 %and1, i16 0
 ret i16 %and3
}
```
```
ADD:   %and3 = select i1 %cmp2, i16 %and2, i16 0
ADD:   %and2 = select i1 %cmp1, i16 %and1, i16 0
ADD: %and1 = and i16 %p_12, 1
IC: Visiting:   %and1 = and i16 %p_12, 1
IC: Visiting:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Visiting: %and3 = select i1 %cmp2, i16 %and2, i16 0
ADD DEFERRED:   %and2 = select i1 %cmp1, i16 %and1, i16 0
ADD DEFERRED:   %cmp2 = icmp eq i16 %and2, %p_12
IC: Mod =   %and3 = select i1 %cmp2, i16 %and2, i16 0
    New = %and3 = select i1 %cmp2, i16 %and1, i16 0
ADD:   %and3 = select i1 %cmp2, i16 %and1, i16 0
ADD:   %cmp2 = icmp eq i16 %and2, %p_12
ADD:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Visiting:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Visiting:   %cmp2 = icmp eq i16 %and2, %p_12
IC: Visiting:   %and3 = select i1 %cmp2, i16 %and1, i16 0
ADD DEFERRED: %and1 = and i16 %p_12, 1
ADD DEFERRED:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Mod =   %and3 = select i1 %cmp2, i16 %and1, i16 0
 New =   %and3 = select i1 %cmp2, i16 %and2, i16 0


ADD:   %and3 = select i1 %cmp2, i16 %and2, i16 0
ADD:   %and2 = select i1 %cmp1, i16 %and1, i16 0
ADD:   %and1 = and i16 %p_12, 1
IC: Visiting:   %and1 = and i16 %p_12, 1
IC: Visiting:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Visiting:   %and3 = select i1 %cmp2, i16 %and2, i16 0
ADD DEFERRED:   %and2 = select i1 %cmp1, i16 %and1, i16 0
ADD DEFERRED: %cmp2 = icmp eq i16 %and2, %p_12
IC: Mod =   %and3 = select i1 %cmp2, i16 %and2, i16 0
    New =   %and3 = select i1 %cmp2, i16 %and1, i16 0
ADD: %and3 = select i1 %cmp2, i16 %and1, i16 0
ADD:   %cmp2 = icmp eq i16 %and2, %p_12
ADD:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Visiting:   %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Visiting: %cmp2 = icmp eq i16 %and2, %p_12
IC: Visiting:   %and3 = select i1 %cmp2, i16 %and1, i16 0
ADD DEFERRED:   %and1 = and i16 %p_12, 1
ADD DEFERRED: %and2 = select i1 %cmp1, i16 %and1, i16 0
IC: Mod =   %and3 = select i1 %cmp2, i16 %and1, i16 0
    New =   %and3 = select i1 %cmp2, i16 %and2, i16 0

...
```
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