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Roman Lebedev ff21e3f055 [ConstantFolding] Fix 'undef' folding for @llvm.[us]{add,sub}.with.overflow ops (PR43188) 
As we have already established/fixed in
  https://bugs.llvm.org/show_bug.cgi?id=42209
  https://reviews.llvm.org/D63065
  https://reviews.llvm.org/rL363522
the InstSimplify handling for @llvm.with.overflow ops with undefs
is correct. Therefore if ConstantFolding produces different results,
then it is wrong.

This duplication of code hints at the need for some refactoring,
but for now address the brokenness of ConstantFolding by
copying the known-good handling from rL363522.

Fixes https://bugs.llvm.org/show_bug.cgi?id=43188

llvm-svn: 370608
2019-09-01 11:56:52 +00:00
..
2002-05-03-DivideByZeroException.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
2002-05-03-NotOperator.ll
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2002-09-03-SetCC-Bools.ll
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2019-04-17 04:52:47 +00:00
2003-05-12-DivideError.ll
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2019-04-17 04:52:47 +00:00
2005-01-28-SetCCGEP.ll
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2006-11-30-vector-cast.ll
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2006-12-01-bool-casts.ll
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2019-04-17 04:52:47 +00:00
2006-12-01-TruncBoolBug.ll
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2019-04-17 04:52:47 +00:00
2007-02-05-BitCast.ll
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2019-04-17 04:52:47 +00:00
2007-02-23-sdiv.ll
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2019-04-17 04:52:47 +00:00
2008-07-07-VectorCompare.ll
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2019-04-17 04:52:47 +00:00
2009-06-20-constexpr-zero-lhs.ll
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2019-04-17 04:52:47 +00:00
2009-09-01-GEP-Crash.ll
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2019-04-17 04:52:47 +00:00
avx512.ll
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2019-04-17 04:52:47 +00:00
basictest.ll
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2019-04-17 04:52:47 +00:00
bitcast.ll
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2019-04-17 04:52:47 +00:00
bswap.ll
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2019-04-17 04:52:47 +00:00
calls-math-finite.ll
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2019-04-17 04:52:47 +00:00
calls.ll
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2019-04-17 04:52:47 +00:00
cast.ll
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2019-04-17 04:52:47 +00:00
constant-expr.ll
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2019-04-17 04:52:47 +00:00
convert-from-fp16.ll
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2019-04-17 04:52:47 +00:00
div-zero.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
extractvalue.ll
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2019-04-17 04:52:47 +00:00
float-to-ptr-cast.ll
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2019-04-17 04:52:47 +00:00
InsertElement.ll
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2019-04-17 04:52:47 +00:00
insertvalue.ll
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2019-04-17 04:52:47 +00:00
loads.ll
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2019-04-17 04:52:47 +00:00
logicaltest.ll
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2019-04-17 04:52:47 +00:00
overflow-ops.ll
[ConstantFolding] Fix 'undef' folding for @llvm.[us]{add,sub}.with.overflow ops (PR43188)
2019-09-01 11:56:52 +00:00
phi.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
remtest.ll
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2019-04-17 04:52:47 +00:00
shift.ll
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2019-04-17 04:52:47 +00:00
sse.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
trunc_vec.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00