Revert "[ORC] Enable JIT support for the compact-unwind frame info format..."

This reverts 4f0325873faccfbe171bae4babceb65975ca892e and follow-up patches
(see below) while I investigate some ongoing

Revert "[ORC] Enable JIT support for the compact-unwind frame info format..."

This reverts 4f0325873faccfbe171bae4babceb65975ca892e and follow-up patches
(see below) while I investigate some ongoing failures on the buildbots.

---

Revert "[clang-repl] Try to XFAIL testcase on arm32 without affecting arm64
darwin."

This reverts commit fd174f0ff3e793fe96a6663b1488ed159cfe042f.

Revert "[clang-repl] The simple-exception test now passes on arm64-darwin."

This reverts commit c9bc242e387f4a4a3dfcd86561f3ec0ca8a72d62.

Revert "[ORC] Destroy defunct MaterializationUnits outside the session lock."

This reverts commit a001cc0e6cdcfa672b8aff9ce6d14782bb96356a.

Revert "[ORC] Add explicit narrowing casts to fix build errors."

This reverts commit 26fc07d5d88760ad659599184fd10181287d2d9e.

Revert "[ORC] Enable JIT support for the compact-unwind frame info format on
Darwin."

This reverts commit 4f0325873faccfbe171bae4babceb65975ca892e.

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[clang-repl] Try to XFAIL testcase on arm32 without affecting arm64 darwin.

See discussion in https://github.com/llvm/llvm-project/commit/4f0325873faccfbe1.

[clang-repl] The simple-exception test now passes on arm64-darwin.

[JITLink][RISCV] Implement eh_frame handling (#68253)

This requires adding a `NegDelta32` edge kind that cannot be mapped to
existing relocations.

Co-authored-by: Job Noorman <jnoorman@igalia.co

[JITLink][RISCV] Implement eh_frame handling (#68253)

This requires adding a `NegDelta32` edge kind that cannot be mapped to
existing relocations.

Co-authored-by: Job Noorman <jnoorman@igalia.com>

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[test][clang-repl] Disable test incompatible with msan

[clang-repl] XFAIL riscv targets in simple-exception test case

This test fails for RISC-V and Arm targets are already XFAILed, so add
RISC-V to the XFAIL list.

Differential Revision: https://review

[clang-repl] XFAIL riscv targets in simple-exception test case

This test fails for RISC-V and Arm targets are already XFAILed, so add
RISC-V to the XFAIL list.

Differential Revision: https://reviews.llvm.org/D141380

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[ARM/Darwin] Convert tests to check 'target='

Part of the project to eliminate special handling for triples in lit
expressions.

[clang-repl] XFAIL windows properly in simple-exception test case.

We don't have proper exception support in LLJIT on windows yet. We have to xfail windows machine, but the previous check missed out

[clang-repl] XFAIL windows properly in simple-exception test case.

We don't have proper exception support in LLJIT on windows yet. We have to xfail windows machine, but the previous check missed out some targets.

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[clang-repl] Disable building when LLVM_STATIC_LINK_CXX_STDLIB is ON.

We have seen random symbol not found "__cxa_throw" error in fuschia build bots and out-of-tree users. The understanding have bee

[clang-repl] Disable building when LLVM_STATIC_LINK_CXX_STDLIB is ON.

We have seen random symbol not found "__cxa_throw" error in fuschia build bots and out-of-tree users. The understanding have been that they are built without exception support, but it turned out that these platforms have LLVM_STATIC_LINK_CXX_STDLIB ON so that they link libstdc++ to llvm statically. The reason why this is problematic for clang-repl is that by default clang-repl tries to find symbols from symbol table of executable and dynamic libraries loaded by current process. It needs to load another libstdc++, but the platform that had LLVM_STATIC_LINK_CXX_STDLIB turned on is usally those with missing or obsolate shared libstdc++ in the first place -- trying to load it again would be destined to fail eventually with a risk to introuduce mixed libstdc++ versions.

A proper solution that doesn't take a workaround is statically link the same libstdc++ by clang-repl side, but this is not possible with old JIT linker runtimedyld. New just-in-time linker JITLink handles this relatively well, but it's not availalbe in majority of platforms. For now, this patch just disables the building of clang-repl when LLVM_STATIC_LINK_CXX_STDLIB is ON and removes the "__cxa_throw" check in exception unittest as well as reverting previous exception check flag patch.

Reviewed By: v.g.vassilev

Differential Revision: https://reviews.llvm.org/D130788

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[clang-repl] Add host exception support check utility flag.

Add host exception support check utility flag. This is needed to not run tests that require exception support in few buildbots that lacks

[clang-repl] Add host exception support check utility flag.

Add host exception support check utility flag. This is needed to not run tests that require exception support in few buildbots that lacks related symbols for some reason.

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D129242

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