[CIR][CIRGen][Builtin] Support __builtin_launder except in the case of -fstrict-vtable-pointers #1138
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needs fixing conflict |
lanza
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Mar 18, 2025
…f -fstrict-vtable-pointers (#1138) Without using flag `-fstrict-vtable-pointers`, `__builtin_launder` is a noop. This PR implements that, and leave implementation for the case of `-fstrict-vtable-pointers` to future where there is a need. This PR also adapted most of test cases from [OG test case](https://github.com/llvm/clangir/blob/3aed38cf52e72cb51a907fad9dd53802f6505b81/clang/test/CodeGenCXX/builtin-launder.cpp#L1). I didn't use test cases in the namespace [pessimizing_cases](https://github.com/llvm/clangir/blob/3aed38cf52e72cb51a907fad9dd53802f6505b81/clang/test/CodeGenCXX/builtin-launder.cpp#L269), as they have no difference even when `-fstrict-vtable-pointers` is on.
terapines-osc-cir
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Sep 2, 2025
…f -fstrict-vtable-pointers (llvm#1138) Without using flag `-fstrict-vtable-pointers`, `__builtin_launder` is a noop. This PR implements that, and leave implementation for the case of `-fstrict-vtable-pointers` to future where there is a need. This PR also adapted most of test cases from [OG test case](https://github.com/llvm/clangir/blob/3aed38cf52e72cb51a907fad9dd53802f6505b81/clang/test/CodeGenCXX/builtin-launder.cpp#L1). I didn't use test cases in the namespace [pessimizing_cases](https://github.com/llvm/clangir/blob/3aed38cf52e72cb51a907fad9dd53802f6505b81/clang/test/CodeGenCXX/builtin-launder.cpp#L269), as they have no difference even when `-fstrict-vtable-pointers` is on.
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Without using flag
-fstrict-vtable-pointers,__builtin_launderis a noop. This PR implements that, and leave implementation for the case of-fstrict-vtable-pointersto future where there is a need.This PR also adapted most of test cases from OG test case.
I didn't use test cases in the namespace pessimizing_cases, as they have no difference even when
-fstrict-vtable-pointersis on.