Test Failure: Transforms/InstCombine/select-extractelement.ll

Test source: git

Log:

Source: <stdin>

----------------------------------------
define float @extract_one_select(<4 x float> %a, <4 x float> %b, i32 %c) {
%0:
  %cmp = icmp ne i32 %c, 0
  %sel = select i1 %cmp, <4 x float> %a, <4 x float> %b
  %extract = extractelement <4 x float> %sel, i32 2
  ret float %extract
}
=>
define float @extract_one_select(<4 x float> %a, <4 x float> %b, i32 %c) {
%0:
  %cmp.not = icmp eq i32 %c, 0
  %sel = select i1 %cmp.not, <4 x float> %b, <4 x float> %a
  %extract = extractelement <4 x float> %sel, i64 2
  ret float %extract
}
Transformation seems to be correct!


----------------------------------------
define <2 x float> @extract_two_select(<4 x float> %a, <4 x float> %b, i32 %c) {
%0:
  %cmp = icmp ne i32 %c, 0
  %sel = select i1 %cmp, <4 x float> %a, <4 x float> %b
  %extract1 = extractelement <4 x float> %sel, i32 1
  %extract2 = extractelement <4 x float> %sel, i32 2
  %build1 = insertelement <2 x float> undef, float %extract1, i32 0
  %build2 = insertelement <2 x float> %build1, float %extract2, i32 1
  ret <2 x float> %build2
}
=>
define <2 x float> @extract_two_select(<4 x float> %a, <4 x float> %b, i32 %c) {
%0:
  %cmp.not = icmp eq i32 %c, 0
  %sel = select i1 %cmp.not, <4 x float> %b, <4 x float> %a
  %build2 = shufflevector <4 x float> %sel, <4 x float> undef, 1, 2
  ret <2 x float> %build2
}
Transformation seems to be correct!


----------------------------------------
define float @extract_one_select_user(<4 x float> %a, <4 x float> %b, i32 %c) {
%0:
  %cmp = icmp ne i32 %c, 0
  %sel = select i1 %cmp, <4 x float> %a, <4 x float> %b
  %extract = extractelement <4 x float> %sel, i32 2
  call void @v4float_user(<4 x float> %sel)
  ret float %extract
}
=>
define float @extract_one_select_user(<4 x float> %a, <4 x float> %b, i32 %c) {
%0:
  %cmp.not = icmp eq i32 %c, 0
  %sel = select i1 %cmp.not, <4 x float> %b, <4 x float> %a
  %extract = extractelement <4 x float> %sel, i64 2
  call void @v4float_user(<4 x float> %sel)
  ret float %extract
}
Transformation doesn't verify!
ERROR: Timeout


----------------------------------------
define float @extract_one_vselect_user(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%0:
  %cmp = icmp ne <4 x i32> %c, { 0, 0, 0, 0 }
  %sel = select <4 x i1> %cmp, <4 x float> %a, <4 x float> %b
  %extract = extractelement <4 x float> %sel, i32 2
  call void @v4float_user(<4 x float> %sel)
  ret float %extract
}
=>
define float @extract_one_vselect_user(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%0:
  %cmp.not = icmp eq <4 x i32> %c, { 0, 0, 0, 0 }
  %sel = select <4 x i1> %cmp.not, <4 x float> %b, <4 x float> %a
  %extract = extractelement <4 x float> %sel, i64 2
  call void @v4float_user(<4 x float> %sel)
  ret float %extract
}
Transformation doesn't verify!
ERROR: Timeout


----------------------------------------
define float @extract_one_vselect(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%0:
  %cmp = icmp ne <4 x i32> %c, { 0, 0, 0, 0 }
  %select = select <4 x i1> %cmp, <4 x float> %a, <4 x float> %b
  %extract = extractelement <4 x float> %select, i32 0
  ret float %extract
}
=>
define float @extract_one_vselect(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%0:
  %cmp.not = icmp eq <4 x i32> %c, { 0, 0, 0, 0 }
  %select = select <4 x i1> %cmp.not, <4 x float> %b, <4 x float> %a
  %extract = extractelement <4 x float> %select, i64 0
  ret float %extract
}
Transformation seems to be correct!


----------------------------------------
define <2 x float> @extract_two_vselect(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%0:
  %cmp = icmp ne <4 x i32> %c, { 0, 0, 0, 0 }
  %sel = select <4 x i1> %cmp, <4 x float> %a, <4 x float> %b
  %extract1 = extractelement <4 x float> %sel, i32 1
  %extract2 = extractelement <4 x float> %sel, i32 2
  %build1 = insertelement <2 x float> undef, float %extract1, i32 0
  %build2 = insertelement <2 x float> %build1, float %extract2, i32 1
  ret <2 x float> %build2
}
=>
define <2 x float> @extract_two_vselect(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%0:
  %cmp.not = icmp eq <4 x i32> %c, { 0, 0, 0, 0 }
  %sel = select <4 x i1> %cmp.not, <4 x float> %b, <4 x float> %a
  %build2 = shufflevector <4 x float> %sel, <4 x float> undef, 1, 2
  ret <2 x float> %build2
}
Transformation seems to be correct!


----------------------------------------
define <4 x float> @simple_vector_select(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%entry:
  %0 = extractelement <4 x i32> %c, i32 0
  %tobool = icmp ne i32 %0, 0
  %a.sink = select i1 %tobool, <4 x float> %a, <4 x float> %b
  %1 = extractelement <4 x float> %a.sink, i32 0
  %2 = insertelement <4 x float> undef, float %1, i32 0
  %3 = extractelement <4 x i32> %c, i32 1
  %tobool1 = icmp ne i32 %3, 0
  %a.sink1 = select i1 %tobool1, <4 x float> %a, <4 x float> %b
  %4 = extractelement <4 x float> %a.sink1, i32 1
  %5 = insertelement <4 x float> %2, float %4, i32 1
  %6 = extractelement <4 x i32> %c, i32 2
  %tobool6 = icmp ne i32 %6, 0
  %a.sink2 = select i1 %tobool6, <4 x float> %a, <4 x float> %b
  %7 = extractelement <4 x float> %a.sink2, i32 2
  %8 = insertelement <4 x float> %5, float %7, i32 2
  %9 = extractelement <4 x i32> %c, i32 3
  %tobool11 = icmp ne i32 %9, 0
  %a.sink3 = select i1 %tobool11, <4 x float> %a, <4 x float> %b
  %10 = extractelement <4 x float> %a.sink3, i32 3
  %11 = insertelement <4 x float> %8, float %10, i32 3
  ret <4 x float> %11
}
=>
define <4 x float> @simple_vector_select(<4 x float> %a, <4 x float> %b, <4 x i32> %c) {
%entry:
  %0 = extractelement <4 x i32> %c, i64 0
  %tobool.not = icmp eq i32 %0, 0
  %a.sink = select i1 %tobool.not, <4 x float> %b, <4 x float> %a
  %1 = extractelement <4 x i32> %c, i64 1
  %tobool1.not = icmp eq i32 %1, 0
  %a.sink1 = select i1 %tobool1.not, <4 x float> %b, <4 x float> %a
  %2 = shufflevector <4 x float> %a.sink, <4 x float> %a.sink1, 0, 5, 4294967295, 4294967295
  %3 = extractelement <4 x i32> %c, i64 2
  %tobool6.not = icmp eq i32 %3, 0
  %a.sink2 = select i1 %tobool6.not, <4 x float> %b, <4 x float> %a
  %4 = shufflevector <4 x float> %2, <4 x float> %a.sink2, 0, 1, 6, 4294967295
  %5 = extractelement <4 x i32> %c, i64 3
  %tobool11.not = icmp eq i32 %5, 0
  %a.sink3 = select i1 %tobool11.not, <4 x float> %b, <4 x float> %a
  %6 = shufflevector <4 x float> %4, <4 x float> %a.sink3, 0, 1, 2, 7
  ret <4 x float> %6
}
Transformation doesn't verify!
ERROR: Timeout


----------------------------------------
define <4 x i32> @extract_cond(<4 x i32> %x, <4 x i32> %y, <4 x i1> %condv) {
%0:
  %cond = extractelement <4 x i1> %condv, i32 3
  %r = select i1 %cond, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %r
}
=>
define <4 x i32> @extract_cond(<4 x i32> %x, <4 x i32> %y, <4 x i1> %condv) {
%0:
  %.splat = shufflevector <4 x i1> %condv, <4 x i1> undef, 3, 3, 3, 3
  %r = select <4 x i1> %.splat, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %r
}
Transformation doesn't verify!
ERROR: Target is more poisonous than source

Example:
<4 x i32> %x = < poison, poison, poison, #x00000000 (0)	[based on undef value] >
<4 x i32> %y = < poison, #x00000000 (0)	[based on undef value], poison, poison >
<4 x i1> %condv = < poison, poison, poison, undef >

Source:
i1 %cond = #x0 (0)	[based on undef value]
<4 x i32> %r = < poison, #x00000000 (0), poison, poison >

Target:
<4 x i1> %.splat = < #x0 (0), #x1 (1), #x0 (0), #x0 (0) >
<4 x i32> %r = < poison, poison, poison, poison >
Source value: < poison, #x00000000 (0), poison, poison >
Target value: < poison, poison, poison, poison >


------------------- SMT STATS -------------------
Num queries: 44
Num invalid: 0
Num skips:   0
Num trivial: 26 (37.1%)
Num timeout: 3 (6.8%)
Num errors:  0 (0.0%)
Num SAT:     28 (63.6%)
Num UNSAT:   13 (29.5%)
Alive2: Transform doesn't verify; aborting!

stderr:

+ : 'RUN: at line 2'
+ /home/nlopes/alive2/build/opt-alive.sh -S -passes=instcombine
+ /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/select-extractelement.ll

FileCheck error: '<stdin>' is empty.
FileCheck command line:  /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/select-extractelement.ll

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

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