Test Failure: Transforms/MemCpyOpt/memset-memcpy-redundant-memset.ll

Test source: git

Log:

Source: /home/nlopes/llvm/llvm/test/Transforms/MemCpyOpt/memset-memcpy-redundant-memset.ll

----------------------------------------
define void @test(* %src, i64 %src_size, * %dst, i64 %dst_size, i8 %c) {
%0:
  memset * %dst align 1, i8 %c, i64 %dst_size
  memcpy * %dst align 1, * %src align 1, i64 %src_size
  ret void
}
=>
define void @test(* %src, i64 %src_size, * %dst, i64 %dst_size, i8 %c) {
%0:
  %1 = icmp ule i64 %dst_size, %src_size
  %2 = sub i64 %dst_size, %src_size
  %3 = select i1 %1, i64 0, i64 %2
  %4 = gep * %dst, 1 x i64 %src_size
  memset * %4 align 1, i8 %c, i64 %3
  memcpy * %dst align 1, * %src align 1, i64 %src_size
  ret void
}
Transformation doesn't verify!
ERROR: Timeout


----------------------------------------
define void @test_different_types_i32_i64(* %dst, * %src, i32 %dst_size, i64 %src_size, i8 %c) {
%0:
  memset * %dst align 1, i8 %c, i32 %dst_size
  memcpy * %dst align 1, * %src align 1, i64 %src_size
  ret void
}
=>
define void @test_different_types_i32_i64(* %dst, * %src, i32 %dst_size, i64 %src_size, i8 %c) {
%0:
  %1 = zext i32 %dst_size to i64
  %2 = icmp ule i64 %1, %src_size
  %3 = sub i64 %1, %src_size
  %4 = select i1 %2, i64 0, i64 %3
  %5 = gep * %dst, 1 x i64 %src_size
  memset * %5 align 1, i8 %c, i64 %4
  memcpy * %dst align 1, * %src align 1, i64 %src_size
  ret void
}
Transformation doesn't verify!
ERROR: Source is more defined than target

Example:
* %dst = pointer(non-local, block_id=1, offset=2954194229787623456)
* %src = pointer(non-local, block_id=2, offset=63520)
i32 %dst_size = undef
i64 %src_size = #x0000000000000800 (2048)
i8 %c = poison

Source:

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 64	alloc type: 0
Block 1 >	size: 4611686018427387904	align: 2	alloc type: 0
Block 2 >	size: 4611686018427387904	align: 2	alloc type: 0

Target:
i64 %1 = #x0000000000001002 (4098)
i1 %2 = #x0 (0)
i64 %3 = #xfffffffffffff908 (18446744073709549832, -1784)
i64 %4 = #xfffffffffffff908 (18446744073709549832, -1784)
* %5 = pointer(non-local, block_id=1, offset=2954194229787625504)



------------------- SMT STATS -------------------
Num queries: 4
Num invalid: 0
Num skips:   0
Num trivial: 0 (0.0%)
Num timeout: 1 (25.0%)
Num errors:  0 (0.0%)
Num SAT:     3 (75.0%)
Num UNSAT:   0 (0.0%)

stderr:

+ : 'RUN: at line 1'
+ /home/nlopes/alive2/scripts/opt-alive.sh -basicaa -memcpyopt -S /home/nlopes/llvm/llvm/test/Transforms/MemCpyOpt/memset-memcpy-redundant-memset.ll
+ /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/MemCpyOpt/memset-memcpy-redundant-memset.ll

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/MemCpyOpt/memset-memcpy-redundant-memset.ll

NOTE: This test would pass if undef didn't exist!

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