[PATCH] D74183: [IRGen] Add an alignment attribute to underaligned sret parameters

[Erik Pilkington via Phabricator via cfe-commits]

erik.pilkington created this revision.
erik.pilkington added reviewers: rjmccall, scanon.
Herald added subscribers: ributzka, dexonsmith, jkorous.

Without this, LLVM will assume the pointer has the type's alignment, which is undefined if the value is actually underaligned.

rdar://58316406


https://reviews.llvm.org/D74183

Files:
  clang/lib/CodeGen/CGCall.cpp
  clang/test/CodeGen/aligned-sret.c
  clang/test/CodeGen/arm-varargs.c
  clang/test/CodeGen/arm64-arguments.c
  clang/test/CodeGen/arm64_32.c
  clang/test/CodeGen/systemz-abi-vector.c

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