Test Failure: Transforms/InstCombine/memcpy-to-load.ll

Test source: git

Comments: LLVM bug: memcpy -> i8 load/store

Log:

Source: <stdin>

----------------------------------------
define void @copy_1_byte(* %d, * %s) {
%0:
  memcpy * %d align 1, * %s align 1, i32 1
  ret void
}
=>
define void @copy_1_byte(* %d, * %s) {
%0:
  %1 = load i8, * %s, align 1
  store i8 %1, * %d, align 1
  ret void
}
Transformation doesn't verify!
ERROR: Mismatch in memory

Example:
* %d = pointer(non-local, block_id=2, offset=0)
* %s = pointer(non-local, block_id=1, offset=2)

Source:

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 64	alloc type: 0
Block 1 >	size: 5	align: 0	alloc type: 0
Block 2 >	size: 4	align: 4	alloc type: 0

Target:
i8 %1 = poison

Mismatch in pointer(non-local, block_id=2, offset=0)
Source value: null, byte offset=0
Target value: poison


------------------- SMT STATS -------------------
Num queries: 4
Num invalid: 0
Num skips:   0
Num trivial: 2 (33.3%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     2 (50.0%)
Num UNSAT:   2 (50.0%)

stderr:

+ : 'RUN: at line 2'
+ /home/nlopes/alive2/scripts/opt-alive.sh -instcombine -S
+ /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/memcpy-to-load.ll --check-prefix=ALL --check-prefix=NODL

Alive2: Transform doesn't verify; aborting!
FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/memcpy-to-load.ll --check-prefix=ALL --check-prefix=NODL

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