[SandboxIR] createFunction() should always create a function (#124665)

This patch removes the assertion that checks for an existing function.
If one exists it will remove it and create a new one. T

[SandboxIR] createFunction() should always create a function (#124665)

This patch removes the assertion that checks for an existing function.
If one exists it will remove it and create a new one. This helps remove
a crash when a function declaration object already exists and we are
about to create a SandboxIR object for the definition.

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[SandboxIR] Remove sandboxir::PointerType::get(Type) (#123885)

This was just an alias for getting the LLVM Context from the type.

We are in the process of removing the same function for the regular

[SandboxIR] Remove sandboxir::PointerType::get(Type) (#123885)

This was just an alias for getting the LLVM Context from the type.

We are in the process of removing the same function for the regular LLVM
type in https://github.com/llvm/llvm-project/issues/123569

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[SandboxIR] Fix CmpInst::create() when it gets folded (#123408)

If the operands of a CmpInst are constants then it gets folded into a
constant. Therefore CmpInst::create() should return a Value*, n

[SandboxIR] Fix CmpInst::create() when it gets folded (#123408)

If the operands of a CmpInst are constants then it gets folded into a
constant. Therefore CmpInst::create() should return a Value*, not a
Constant* and should handle the creation of the constant correctly.

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[SandboxIR] Use the proper gmock public header in unit tests.

This should fix the BuildKite bazel build.

[SandboxIR] Add callbacks for instruction insert/remove/move ops (#112965)

[SandboxIR] Switch more Instruction::create() to InsertPosition (#111213)

Also moves CmpInst definitions from Context.cpp to Instruction.cpp

[SandboxIR] Switch more Instruction::create() to InsertPosition (#111208)

[SandboxIR] Switch more Instruction::create() to InsertPosition (#111187)

[SandboxIR] Switch more Instruction::create() to InsertPosition (#111080)

[SandboxIR] Switch more Instruction::create() functions to InsertPosition (#111075)

[SandboxIR] Implement InsertPosition (#110730)

This patch implements the InsertPosition class that is used to specify
where an instruction should be placed.

It also switches a couple of create()

[SandboxIR] Implement InsertPosition (#110730)

This patch implements the InsertPosition class that is used to specify
where an instruction should be placed.

It also switches a couple of create() functions from the old API to the
new one that uses InsertPosition.

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[SandboxIR][NFC] Move Utils test to proper file (#110763)

[SandboxIR][NFC] Move isMemDepCandidate() and isStackSaveOrRestoreIntrinsic() to Utils

[SandboxIR] Implement getNumBits for Instructions (#110748)

This also moves the other getNumbits test into UtilsTest.cc where it
belongs.

[SandboxIR][NFC] Rename SandboxIRValues.def to Values.def (#110538)

[SandboxIR][NFC] Move Function class to a separate file (#110526)

Reapply "[SandboxIR][NFC] Delete SandboxIR.h (#110309)"

This reverts commit 8dfeb4ef5d60a5c764f0ce249cc4ec69e012ff93.

Revert "[SandboxIR][NFC] Delete SandboxIR.h (#110309)"

This reverts commit ca47f48a5c9e81ef8b5c4a5b1fbc473ea5d5497c.

[SandboxIR][NFC] Delete SandboxIR.h (#110309)

[SandboxIR] Fix failing unittest introduced by 51039101cf32

[SandboxIR] Add more functions to sandboxir:Instruction class. (#110050)

The getter functions simply turn around and call the LLVM
counterparts. This is fine until we don't add new sandbox IR
opc

[SandboxIR] Add more functions to sandboxir:Instruction class. (#110050)

The getter functions simply turn around and call the LLVM
counterparts. This is fine until we don't add new sandbox IR
opcodes. At that point, we may have to explicitly check if
the behavior is different.

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[SandboxIR] Implement Module (#109716)

This patch implements sandboxir::Module.
It provides access to globals.

[SandboxIR] Implement a few Instruction member functions (#109820)

This patch implements a few sandboxir::Instruction predicate functions.

[SandboxIR] Implement a few Instruction member functions (#109709)

This patch implements some of the missing member functions of
sandboxir::Instruction.

[SandboxIR] Implement ConstantExpr (#109491)

This patch implements an empty sandboxir::ConstantExpr class, mirroring
llvm::ConstantExpr.