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| author | Paulo Matos <pmatos@igalia.com> | 2021-06-10 10:02:10 +0200 |
|---|---|---|
| committer | Paulo Matos <pmatos@igalia.com> | 2021-06-10 10:07:45 +0200 |
| commit | 31859f896cf90d64904134ce7b31230f374c3fcc (patch) | |
| tree | 82be96496afd3d6408de39b8a53f6cf5f0aeb7cc /llvm/lib/CodeGen/CodeGenPrepare.cpp | |
| parent | ad6a84f82c4572dd92369b4f67df6e7c3536f9a2 (diff) | |
| download | llvm-31859f896cf90d64904134ce7b31230f374c3fcc.zip llvm-31859f896cf90d64904134ce7b31230f374c3fcc.tar.gz llvm-31859f896cf90d64904134ce7b31230f374c3fcc.tar.bz2 | |
Implementation of global.get/set for reftypes in LLVM IR
This change implements new DAG notes GLOBAL_GET/GLOBAL_SET, and
lowering methods for load and stores of reference types from IR
globals. Once the lowering creates the new nodes, tablegen pattern
matches those and converts them to Wasm global.get/set.
Reviewed By: tlively
Differential Revision: https://reviews.llvm.org/D95425
Diffstat (limited to 'llvm/lib/CodeGen/CodeGenPrepare.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/CodeGenPrepare.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp index 0bdaaa6..4570072 100644 --- a/llvm/lib/CodeGen/CodeGenPrepare.cpp +++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp @@ -6451,6 +6451,10 @@ bool CodeGenPrepare::optimizeLoadExt(LoadInst *Load) { EVT LoadResultVT = TLI->getValueType(*DL, Load->getType()); unsigned BitWidth = LoadResultVT.getSizeInBits(); + // If the BitWidth is 0, do not try to optimize the type + if (BitWidth == 0) + return false; + APInt DemandBits(BitWidth, 0); APInt WidestAndBits(BitWidth, 0); |