Test Failure: Transforms/InstCombine/load-gep-overalign.ll

Test source: git

Log:

Source: /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll
-- 1. ModuleToFunctionPassAdaptor
-- 1. PassManager<Function> : Skipping NOP
-- 2. InstCombinePass

----------------------------------------
@foo = constant 8 bytes, align 8

define void @test_vector_load_i8() {
#init:
  store <4 x i16> { 8961, 26437, 43913, 61389 }, ptr @foo, align 8
  br label %0

%0:
  %ptr0 = gep ptr @foo, 1 x i64 0
  %res0 = load i8, ptr %ptr0, align 1
  call void @report(i64 0, i8 %res0)
  %ptr1 = gep ptr @foo, 1 x i64 1
  %res1 = load i8, ptr %ptr1, align 1
  call void @report(i64 1, i8 %res1)
  %ptr2 = gep ptr @foo, 1 x i64 2
  %res2 = load i8, ptr %ptr2, align 1
  call void @report(i64 2, i8 %res2)
  %ptr3 = gep ptr @foo, 1 x i64 3
  %res3 = load i8, ptr %ptr3, align 1
  call void @report(i64 3, i8 %res3)
  %ptr4 = gep ptr @foo, 1 x i64 4
  %res4 = load i8, ptr %ptr4, align 1
  call void @report(i64 4, i8 %res4)
  %ptr5 = gep ptr @foo, 1 x i64 5
  %res5 = load i8, ptr %ptr5, align 1
  call void @report(i64 5, i8 %res5)
  %ptr6 = gep ptr @foo, 1 x i64 6
  %res6 = load i8, ptr %ptr6, align 1
  call void @report(i64 6, i8 %res6)
  %ptr7 = gep ptr @foo, 1 x i64 7
  %res7 = load i8, ptr %ptr7, align 1
  call void @report(i64 7, i8 %res7)
  ret void
}
Transformation seems to be correct! (syntactically equal)

-- 3. InstCombinePass

----------------------------------------
@foo = constant 8 bytes, align 8

define void @test_vector_load_i8() {
#init:
  store <4 x i16> { 8961, 26437, 43913, 61389 }, ptr @foo, align 8
  br label %0

%0:
  %ptr0 = gep ptr @foo, 1 x i64 0
  %res0 = load i8, ptr %ptr0, align 1
  call void @report(i64 0, i8 %res0)
  %ptr1 = gep ptr @foo, 1 x i64 1
  %res1 = load i8, ptr %ptr1, align 1
  call void @report(i64 1, i8 %res1)
  %ptr2 = gep ptr @foo, 1 x i64 2
  %res2 = load i8, ptr %ptr2, align 1
  call void @report(i64 2, i8 %res2)
  %ptr3 = gep ptr @foo, 1 x i64 3
  %res3 = load i8, ptr %ptr3, align 1
  call void @report(i64 3, i8 %res3)
  %ptr4 = gep ptr @foo, 1 x i64 4
  %res4 = load i8, ptr %ptr4, align 1
  call void @report(i64 4, i8 %res4)
  %ptr5 = gep ptr @foo, 1 x i64 5
  %res5 = load i8, ptr %ptr5, align 1
  call void @report(i64 5, i8 %res5)
  %ptr6 = gep ptr @foo, 1 x i64 6
  %res6 = load i8, ptr %ptr6, align 1
  call void @report(i64 6, i8 %res6)
  %ptr7 = gep ptr @foo, 1 x i64 7
  %res7 = load i8, ptr %ptr7, align 1
  call void @report(i64 7, i8 %res7)
  ret void
}
=>
@foo = constant 8 bytes, align 8

define void @test_vector_load_i8() {
#init:
  store <4 x i16> { 8961, 26437, 43913, 61389 }, ptr @foo, align 8
  br label %0

%0:
  call void @report(i64 0, i8 1)
  call void @report(i64 1, i8 35)
  call void @report(i64 2, i8 0)
  call void @report(i64 3, i8 0)
  call void @report(i64 4, i8 69)
  call void @report(i64 5, i8 103)
  call void @report(i64 6, i8 0)
  call void @report(i64 7, i8 0)
  ret void
}
Transformation doesn't verify! (unsound)
ERROR: Source is more defined than target

Example:

Source:
  >> Jump to %0
ptr %ptr0 = pointer(non-local, block_id=1, offset=0)
i8 %res0 = #x01 (1)
Function @report returned
ptr %ptr1 = pointer(non-local, block_id=1, offset=1)
i8 %res1 = #x23 (35)
Function @report returned
ptr %ptr2 = pointer(non-local, block_id=1, offset=2)
i8 %res2 = #x45 (69)
Function @report returned
ptr %ptr3 = pointer(non-local, block_id=1, offset=3)
i8 %res3 = #x67 (103)
Function @report returned
ptr %ptr4 = pointer(non-local, block_id=1, offset=4)
i8 %res4 = #x89 (137, -119)
Function @report returned
ptr %ptr5 = pointer(non-local, block_id=1, offset=5)
i8 %res5 = #xab (171, -85)
Function @report returned
ptr %ptr6 = pointer(non-local, block_id=1, offset=6)
i8 %res6 = #xcd (205, -51)
Function @report returned
ptr %ptr7 = pointer(non-local, block_id=1, offset=7)
i8 %res7 = #xef (239, -17)
void = function did not return!

SOURCE MEMORY STATE
===================
NON-LOCAL BLOCKS:
Block 0 >	size: 0	align: 1	alloc type: 0
Block 1 >	size: 8	align: 8	alloc type: 0
Block 2 >	size: 0	align: 1	alloc type: 0

Target:
  >> Jump to %0
Function @report returned
Function @report returned
Function @report triggered UB
Function @report triggered UB
Function @report triggered UB
Function @report triggered UB
Function @report triggered UB
Function @report triggered UB


Pass: InstCombinePass
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' '--data-layout=i16:32' '-passes=instcombine' '-S' '/bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll' '-tv-smt-to=20000' '-tv-report-dir=/home/nlopes/alive2/build/logs' '-tv-smt-stats'
Wrote bitcode to: "/home/nlopes/alive2/build/logs/load-gep-overalign_Rc3dvXEi_WFaI.bc"


------------------- SMT STATS -------------------
Num queries: 4
Num invalid: 0
Num skips:   0
Num trivial: 16 (80.0%)
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 -passes=instcombine -S /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll --check-prefix=NATURAL
+ : 'RUN: at line 3'
+ /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll --check-prefix=OVERALIGNED
+ /home/nlopes/alive2/build/opt-alive.sh --data-layout=i16:32 -passes=instcombine -S /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /bitbucket/nlopes/llvm/build/bin/FileCheck /bitbucket/nlopes/llvm/llvm/test/Transforms/InstCombine/load-gep-overalign.ll --check-prefix=OVERALIGNED

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