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| author | Chris Lattner <sabre@nondot.org> | 2006-12-01 19:50:54 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-12-01 19:50:54 +0000 |
| commit | 9dec3a2c0ca8d59e50ffbf1c97b171c7d5f2d6ec (patch) | |
| tree | a6aaa5248e9780437ffdef442ec756eef4a6b40d /lib/VMCore/ConstantFold.cpp | |
| parent | 63edf03fe51f8fe24230dd5891e4b8f252378a3d (diff) | |
| download | llvm-9dec3a2c0ca8d59e50ffbf1c97b171c7d5f2d6ec.tar.gz llvm-9dec3a2c0ca8d59e50ffbf1c97b171c7d5f2d6ec.tar.bz2 llvm-9dec3a2c0ca8d59e50ffbf1c97b171c7d5f2d6ec.tar.xz | |
These should be rewritten to fold without using the 'Rules' mechanism, but
until this happens at least make sext from bool and sitofp from bool do the
right thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32087 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/ConstantFold.cpp')
| -rw-r--r-- | lib/VMCore/ConstantFold.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp index 48d84e5ac5..49bdca2c5e 100644 --- a/lib/VMCore/ConstantFold.cpp +++ b/lib/VMCore/ConstantFold.cpp @@ -890,6 +890,9 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V, if (isa<ConstantInt>(V)) V = ConstantInt::get(SrcTy->getSignedVersion(), cast<ConstantIntegral>(V)->getSExtValue()); + else if (const ConstantBool *CB = dyn_cast<ConstantBool>(V)) + V = ConstantInt::get(Type::SByteTy, CB->getValue() ? -1 : 0); + break; case Instruction::Trunc: // We just handle trunc directly here. The code below doesn't work for |