Test Failure: Transforms/LICM/promote-single-thread.ll

Test source: git

Log:

Source: <stdin>
-- 1. ModuleToFunctionPassAdaptor
ERROR: Unsupported attribute: noalias
-- 1. PassManager<Function> : Skipping NOP
-- 2. FunctionToLoopPassAdaptor

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 3. PassManager<Function> : Skipping NOP
-- 4. LoopSimplifyPass

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 5. LoopSimplifyPass

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 6. LCSSAPass

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 7. LCSSAPass

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 8. PassManager<Function> : Skipping NOP
-- 9. PassManager<Loop, AnalysisManager<Loop, LoopStandardAnalysisResults&>, LoopStandardAnalysisResults&, LPMUpdater&> : Skipping NOP
-- 10. LICMPass

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 11. LICMPass

----------------------------------------
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  br label %loop

%loop:
  br i1 %c, label %if, label %latch

%if:
  %v = load i32, ptr @g, align 4
  %v.inc = add i32 %v, 1
  store i32 %v.inc, ptr @g, align 4
  br label %latch

%latch:
  br i1 %c2, label %exit, label %loop

%exit:
  ret void
}
=>
@g = global 4 bytes, align 4

define void @promote_global(i1 %c, i1 %c2) {
%entry:
  %g.promoted = load i32, ptr @g, align 4
  br label %loop

%loop:
  %v.inc2 = phi i32 [ %v.inc1, %latch ], [ %g.promoted, %entry ]
  br i1 %c, label %if, label %latch

%if:
  %v.inc = add i32 %v.inc2, 1
  br label %latch

%latch:
  %v.inc1 = phi i32 [ %v.inc, %if ], [ %v.inc2, %loop ]
  br i1 %c2, label %exit, label %loop

%exit:
  %v.inc1.lcssa = phi i32 [ %v.inc1, %latch ]
  store i32 %v.inc1.lcssa, ptr @g, align 4
  ret void
}
Transformation doesn't verify! (unsound)
ERROR: Mismatch in memory

Example:
i1 %c = #x0 (0)
i1 %c2 = #x1 (1)

Source:
  >> Jump to %loop
  >> Jump to %latch
  >> Jump to %exit

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

Target:
i32 %g.promoted = poison
  >> Jump to %loop
i32 %v.inc2 = poison
  >> Jump to %latch
i32 %v.inc1 = poison
  >> Jump to %exit
i32 %v.inc1.lcssa = poison

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

Pass: LICMPass
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' '-S' '-passes=licm' '-licm-force-thread-model-single' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats'


------------------- SMT STATS -------------------
Num queries: 4
Num invalid: 0
Num skips:   0
Num trivial: 7 (63.6%)
Num timeout: 0 (0.0%)
Num errors:  0 (0.0%)
Num SAT:     4 (100.0%)
Num UNSAT:   0 (0.0%)
Alive2: Transform doesn't verify; aborting!

stderr:

+ : 'RUN: at line 2'
+ /home/nlopes/alive2/build/opt-alive.sh -S -passes=licm
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/LICM/promote-single-thread.ll --check-prefixes=CHECK,MT
+ : 'RUN: at line 3'
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/LICM/promote-single-thread.ll --check-prefixes=CHECK,ST
+ /home/nlopes/alive2/build/opt-alive.sh -S -passes=licm -licm-force-thread-model-single

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/LICM/promote-single-thread.ll --check-prefixes=CHECK,ST

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