Test Failure: Transforms/StraightLineStrengthReduce/slsr-add.ll

Test source: git

Log:

Source: <stdin>

----------------------------------------
define void @shl(i32 %b, i32 %s) {
%0:
  %t1 = add i32 %b, %s
  call void @foo(i32 %t1)
  %s2 = shl i32 %s, 1
  %t2 = add i32 %b, %s2
  call void @foo(i32 %t2)
  ret void
}
=>
define void @shl(i32 %b, i32 %s) {
%0:
  %t1 = add i32 %b, %s
  call void @foo(i32 %t1)
  %t2 = add i32 %t1, %s
  call void @foo(i32 %t2)
  ret void
}
Transformation doesn't verify!
ERROR: Timeout


----------------------------------------
define void @stride_is_2s(i32 %b, i32 %s) {
%0:
  %s2 = shl i32 %s, 1
  %t1 = add i32 %b, %s2
  call void @foo(i32 %t1)
  %s4 = shl i32 %s, 2
  %t2 = add i32 %b, %s4
  call void @foo(i32 %t2)
  %s6 = mul i32 %s, 6
  %t3 = add i32 %b, %s6
  call void @foo(i32 %t3)
  ret void
}
=>
define void @stride_is_2s(i32 %b, i32 %s) {
%0:
  %s2 = shl i32 %s, 1
  %t1 = add i32 %b, %s2
  call void @foo(i32 %t1)
  %t2 = add i32 %t1, %s2
  call void @foo(i32 %t2)
  %t3 = add i32 %t2, %s2
  call void @foo(i32 %t3)
  ret void
}
Transformation doesn't verify!
ERROR: Source is more defined than target

Example:
i32 %b = any
i32 %s = undef

Source:
i32 %s2 = #x00000000 (0)	[based on undef value]
i32 %t1 = any
i32 %s4 = #x00000000 (0)	[based on undef value]
i32 %t2 = any
i32 %s6 = #x00000000 (0)	[based on undef value]
i32 %t3 = any

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

Target:
i32 %s2 = #x1a000000 (436207616)
i32 %t1 = any
i32 %t2 = any
i32 %t3 = any



------------------- SMT STATS -------------------
Num queries: 14
Num invalid: 0
Num skips:   0
Num trivial: 12 (46.2%)
Num timeout: 1 (7.1%)
Num errors:  0 (0.0%)
Num SAT:     6 (42.9%)
Num UNSAT:   7 (50.0%)
Alive2: Transform doesn't verify; aborting!

stderr:

+ : 'RUN: at line 2'
+ /home/nlopes/alive2/build/opt-alive.sh -slsr -gvn -S
+ /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/StraightLineStrengthReduce/slsr-add.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/StraightLineStrengthReduce/slsr-add.ll

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

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