Update llvm version to include vector option fix

Author: jorickert

docs/BuildOnLinuxOSX.md

@@ -15,7 +15,7 @@ Firstly, install MLIR (as a part of LLVM-Project):
 ``` bash
 git clone -n https://github.com/llvm/llvm-project.git
 # Check out a specific branch that is known to work with ONNX-MLIR.
-cd llvm-project && git checkout 590a988c1ddf5dd7507f48b45a10bbf2dac84e01 && cd ..
+cd llvm-project && git checkout 776b07b472a12db1a451fb4bfc737e05c0ee0b1c && cd ..
 ```
 
 [same-as-file]: <> (utils/build-mlir.sh)

docs/BuildOnWindows.md

@@ -52,7 +52,7 @@ Install MLIR (as a part of LLVM-Project):
 ```shell
 git clone -n https://github.com/llvm/llvm-project.git
 # Check out a specific branch that is known to work with ONNX-MLIR.
-cd llvm-project && git checkout 590a988c1ddf5dd7507f48b45a10bbf2dac84e01 && cd ..
+cd llvm-project && git checkout 776b07b472a12db1a451fb4bfc737e05c0ee0b1c && cd ..
 ```
 
 [same-as-file]: <> (utils/build-mlir.cmd)

src/Conversion/KrnlToLLVM/ConvertKrnlToLLVM.cpp

@@ -196,12 +196,12 @@ void populateAffineAndKrnlToLLVMConversion(RewritePatternSet &patterns,
   vector::populateVectorBitCastLoweringPatterns(patterns);
   vector::populateVectorBroadcastLoweringPatterns(patterns);
   vector::populateVectorContractLoweringPatterns(
-      patterns, vector::VectorTransformsOptions());
+      patterns, vector::VectorContractLowering());
   vector::populateVectorMaskOpLoweringPatterns(patterns);
   vector::populateVectorShapeCastLoweringPatterns(patterns);
   vector::populateVectorInterleaveLoweringPatterns(patterns);
   vector::populateVectorTransposeLoweringPatterns(
-      patterns, vector::VectorTransformsOptions());
+      patterns, vector::VectorTransposeLowering());
   // Vector transfer ops with rank > 1 should be lowered with VectorToSCF.
   vector::populateVectorTransferLoweringPatterns(
       patterns, /*maxTransferRank=*/1);

utils/clone-mlir.sh

@@ -1,3 +1,3 @@
 git clone -n https://github.com/xilinx/llvm-project.git
 # Check out a specific branch that is known to work with ONNX-MLIR.
-cd llvm-project && git checkout 590a988c1ddf5dd7507f48b45a10bbf2dac84e01 && cd ..
+cd llvm-project && git checkout 776b07b472a12db1a451fb4bfc737e05c0ee0b1c && cd ..