Test Failure: Transforms/CallSiteSplitting/musttail.ll

Test source: git

Log:

Source: <stdin>

----------------------------------------
define * @caller(* %a, * %b) {
%Top:
  %c = icmp eq * %a, null
  br i1 %c, label %Tail, label %TBB

%TBB:
  %c2 = icmp eq * %b, null
  br i1 %c2, label %Tail, label %End

%End:
  ret * null

%Tail:
  %ca = call * @callee(* %a, * %b)
  %cb = bitcast * %ca to *
  ret * %cb
}
=>
define * @caller(* %a, * %b) {
%Top:
  %c = icmp eq * %a, null
  br i1 %c, label %Top.split, label %TBB

%TBB:
  %c2 = icmp eq * %b, null
  br i1 %c2, label %TBB.split, label %End

%TBB.split:
  %ca3 = call * @callee(nonnull * %a, * null)
  %cb4 = bitcast * %ca3 to *
  ret * %cb4

%End:
  ret * null

%Top.split:
  %ca1 = call * @callee(* null, * %b)
  %cb2 = bitcast * %ca1 to *
  ret * %cb2
}
Transformation doesn't verify!
ERROR: Source is more defined than target

Example:
* %a = pointer(non-local, block_id=1, offset=4)
* %b = poison

Source:
i1 %c = #x1 (1)
i1 %c2 = poison
* %ca = poison
* %cb = poison

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 1	alloc type: 0	address: 0
Block 1 >	size: 0	align: 2	alloc type: 0	address: 12
Block 2 >	size: 7	align: 2	alloc type: 0	address: 1
Block 3 >	size: 0	align: 2	alloc type: 0	address: 8
Block 4 >	size: 0	align: 2	alloc type: 0

Target:
i1 %c = #x1 (1)
i1 %c2 = poison
* %ca3 = poison
* %cb4 = poison
* %ca1 = poison
* %cb2 = poison



------------------- SMT STATS -------------------
Num queries: 8
Num invalid: 0
Num skips:   0
Num trivial: 3 (27.3%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     8 (100.0%)
Num UNSAT:   0 (0.0%)
Alive2: Transform doesn't verify; aborting!

stderr:

+ : 'RUN: at line 1'
+ /home/nlopes/alive2/build/opt-alive.sh -callsite-splitting -verify-dom-info -S
+ /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/CallSiteSplitting/musttail.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/CallSiteSplitting/musttail.ll

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