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| author | Jay Foad <jay.foad@amd.com> | 2021-01-13 11:25:35 +0000 |
|---|---|---|
| committer | Jay Foad <jay.foad@amd.com> | 2021-01-14 14:02:43 +0000 |
| commit | 517196e569129677be32d6ebcfa57bac552268a4 (patch) | |
| tree | 6eebcbb29e5b5f36ca770f438c7a2bf0476a0f9b /llvm/lib/Analysis/ValueTracking.cpp | |
| parent | a1cba5b7a1fb09d2d4082967e2466a5a89ed698a (diff) | |
| download | llvm-517196e569129677be32d6ebcfa57bac552268a4.zip llvm-517196e569129677be32d6ebcfa57bac552268a4.tar.gz llvm-517196e569129677be32d6ebcfa57bac552268a4.tar.bz2 | |
[Analysis,CodeGen] Make use of KnownBits::makeConstant. NFC.
Differential Revision: https://reviews.llvm.org/D94588
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index b138caa..61c992d 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -1337,8 +1337,8 @@ static void computeKnownBitsFromOperator(const Operator *I, AccConstIndices += IndexConst.sextOrTrunc(BitWidth); continue; } else { - ScalingFactor.Zero = ~TypeSizeInBytes; - ScalingFactor.One = TypeSizeInBytes; + ScalingFactor = + KnownBits::makeConstant(APInt(IndexBitWidth, TypeSizeInBytes)); } IndexBits = KnownBits::computeForMul(IndexBits, ScalingFactor); @@ -1353,9 +1353,7 @@ static void computeKnownBitsFromOperator(const Operator *I, /*Add=*/true, /*NSW=*/false, Known, IndexBits); } if (!Known.isUnknown() && !AccConstIndices.isNullValue()) { - KnownBits Index(BitWidth); - Index.Zero = ~AccConstIndices; - Index.One = AccConstIndices; + KnownBits Index = KnownBits::makeConstant(AccConstIndices); Known = KnownBits::computeForAddSub( /*Add=*/true, /*NSW=*/false, Known, Index); } @@ -1818,8 +1816,7 @@ void computeKnownBits(const Value *V, const APInt &DemandedElts, const APInt *C; if (match(V, m_APInt(C))) { // We know all of the bits for a scalar constant or a splat vector constant! - Known.One = *C; - Known.Zero = ~Known.One; + Known = KnownBits::makeConstant(*C); return; } // Null and aggregate-zero are all-zeros. |