Test Failure: Transforms/NaryReassociate/NVPTX/nary-slsr.ll

Test source: git

Log:

Source: <stdin>
-- 1. ModuleToFunctionPassAdaptor
-- 1. PassManager<Function> : Skipping NOP
-- 2. StraightLineStrengthReducePass

----------------------------------------
declare void @foo(i32)

define void @nary_reassociate_after_slsr(i32 %a, i32 %b, i32 %c) {
#0:
  %ab = add i32 %a, %b
  %abc = add i32 %ab, %c
  call void @foo(i32 %abc)
  %b2 = shl i32 %b, 1
  %ab2 = add i32 %a, %b2
  %ab2c = add i32 %ab2, %c
  call void @foo(i32 %ab2c)
  %b3 = mul i32 %b, 3
  %ab3 = add i32 %a, %b3
  %ab3c = add i32 %ab3, %c
  call void @foo(i32 %ab3c)
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 3. StraightLineStrengthReducePass

----------------------------------------
declare void @foo(i32)

define void @nary_reassociate_after_slsr(i32 %a, i32 %b, i32 %c) {
#0:
  %ab = add i32 %a, %b
  %abc = add i32 %ab, %c
  call void @foo(i32 %abc)
  %b2 = shl i32 %b, 1
  %ab2 = add i32 %a, %b2
  %ab2c = add i32 %ab2, %c
  call void @foo(i32 %ab2c)
  %b3 = mul i32 %b, 3
  %ab3 = add i32 %a, %b3
  %ab3c = add i32 %ab3, %c
  call void @foo(i32 %ab3c)
  ret void
}
=>
declare void @foo(i32)

define void @nary_reassociate_after_slsr(i32 %a, i32 %b, i32 %c) {
#0:
  %ab = add i32 %a, %b
  %abc = add i32 %ab, %c
  call void @foo(i32 %abc)
  %ab2 = add i32 %ab, %b
  %ab2c = add i32 %ab2, %c
  call void @foo(i32 %ab2c)
  %ab3 = add i32 %ab2, %b
  %ab3c = add i32 %ab3, %c
  call void @foo(i32 %ab3c)
  ret void
}
Transformation doesn't verify! (unsound)
ERROR: Source is more defined than target

Example:
i32 %a = #x00000003 (3)
i32 %b = undef
i32 %c = #x00000003 (3)

Source:
i32 %ab = #x00000006 (6)	[based on undef]
i32 %abc = #x00000009 (9)	[based on undef]
Function @foo returned
i32 %b2 = #x00000006 (6)	[based on undef]
i32 %ab2 = #x00000009 (9)	[based on undef]
i32 %ab2c = #x0000000c (12)	[based on undef]
void = function did not return!

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 1	alloc type: 0	alive: false	address: #x0
Block 1 >	size: 0	align: 1	alloc type: 4	alive: true	address: #x3

Target:
i32 %ab = #x00000003 (3)
i32 %abc = #x00000006 (6)
Function @foo returned
i32 %ab2 = #x00000004 (4)
i32 %ab2c = #x00000007 (7)
void = function did not return!

TARGET MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 1	alloc type: 0	alive: false	address: #x0
Block 1 >	size: 0	align: 1	alloc type: 4	alive: true	address: #x3


Pass: StraightLineStrengthReducePass
Command line: '/home/nlopes/llvm/build/bin/opt' '-load=/home/nlopes/alive2/build/tv/tv.so' '-load-pass-plugin=/home/nlopes/alive2/build/tv/tv.so' '-tv-exit-on-error' '-passes=slsr,nary-reassociate' '-S' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats'

Wrote bitcode to: "/home/nlopes/alive2/build/logs/in_2gWcdXCf_vOZR.bc"

------------------- SMT STATS -------------------
Num queries: 50
Num invalid: 0
Num skips:   0
Num trivial: 12 (19.4%)
Num timeout: 10 (20.0%)
Num errors:  0 (0.0%)
Num SAT:     38 (76.0%)
Num UNSAT:   2 (4.0%)
Alive2: Transform doesn't verify; aborting!

stderr:

Transforms/NaryReassociate/NVPTX/nary-slsr.ll' FAILED ********************
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 1
/home/nlopes/alive2/build/opt-alive.sh < /bitbucket/nlopes/llvm/llvm/test/Transforms/NaryReassociate/NVPTX/nary-slsr.ll -passes=slsr,nary-reassociate -S | /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/NaryReassociate/NVPTX/nary-slsr.ll
# executed command: /home/nlopes/alive2/build/opt-alive.sh -passes=slsr,nary-reassociate -S
# .---command stderr------------
# `-----------------------------
# error: command failed with exit status: 1
# executed command: /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/NaryReassociate/NVPTX/nary-slsr.ll
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/NaryReassociate/NVPTX/nary-slsr.ll
# `-----------------------------
# error: command failed with exit status: 2

--

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

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