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Revert "[SCCP] Partially propagate informations when the input is not fully defined."

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This reverts commit r269105 as it caused PR27712.

llvm-svn: 269252
This commit is contained in:
Davide Italiano 2016-05-11 23:06:10 +00:00
parent 9f75184a1e
commit 9c6851f574
2 changed files with 0 additions and 4 deletions
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3
lib/Transforms/Scalar/SCCP.cpp
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@ -1331,9 +1331,6 @@ bool SCCPSolver::ResolvedUndefsIn(Function &F) {
}
Op1LV = getValueState(I.getOperand(1));
if (!Op0LV.isUndefined() && !Op1LV.isUndefined())
break;
}
// If this is an instructions whose result is defined even if the input is
// not fully defined, propagate the information.

1
test/Transforms/ConstProp/shift.ll
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@ -1,5 +1,4 @@
; RUN: opt < %s -constprop -S | FileCheck %s
; RUN: opt < %s -sccp -S | FileCheck %s
; CHECK-LABEL: shift_undef_64
define void @shift_undef_64(i64* %p) {