[PATCH] D100853: [clang][AArch32] Correctly align HA arguments when passed on the stack

[Momchil Velikov via Phabricator via llvm-commits]

chill created this revision.
chill added reviewers: t.p.northover, efriedma, jdoerfert, rnk.
Herald added subscribers: hiraditya, kristof.beyls.
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Analogously to https://reviews.llvm.org/D98794 this patch uses the
`alignstack` attribute to fix incorrect passing of homogeneous
aggregate (HA) arguments on AArch32. The EABI/AAPCS was recently
updated to clarify how VFP co-processor candidates are aligned:
https://github.com/ARM-software/abi-aa/commit/4488e34998514dc7af5507236f279f6881eede62


https://reviews.llvm.org/D100853

Files:
  clang/lib/CodeGen/TargetInfo.cpp
  clang/test/CodeGen/arm-ha-alignstack.c
  llvm/lib/Target/ARM/ARMCallingConv.cpp
  llvm/test/CodeGen/ARM/ha-alignstack-call.ll
  llvm/test/CodeGen/ARM/ha-alignstack.ll

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