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LLVM IR recently added a Type parameter to the byval Attribute, so that
when pointers become opaque and no longer have an element type the
information will still be present in IR.
For now the Type parameter is optional (which is why Clang didn't need
this change at the time), but it will become mandatory soon.
llvm-svn: 362652
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Summary:
In RenderScript, the size of the argument or return value emitted in the
IR is expected to be the same as the size of corresponding qualified
type. For ARM and AArch64, the coercion performed by Clang can
change the parameter or return value to a type whose size is different
(usually larger) than the original aggregate type. Specifically, this
can happen in the following cases:
- Aggregate parameters of size <= 64 bytes and return values smaller
than 4 bytes on ARM
- Aggregate parameters and return values smaller than bytes on
AArch64
This patch coerces the cases above to an integer array that is the same
size and alignment as the original aggregate. A new field is added to
TargetInfo to detect a RenderScript target and limit this coercion just
to that case.
Tests added to test/CodeGen/renderscript.c
Reviewers: rsmith
Subscribers: aemerson, srhines, llvm-commits
Differential Revision: https://reviews.llvm.org/D22822
llvm-svn: 276904
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Summary:
The TargetInfo for 'renderscript32' and 'renderscript64' ArchTypes are
subclasses of ARMleTargetInfo and AArch64leTargetInfo respectively.
RenderScript32TargetInfo modifies the ARM ABI to set LongWidth and
LongAlign to be 64-bits. Other than this modification, the underlying
TargetInfo base classes is initialized as if they have "armv7" and
"aarch64" architecture type respectively.
Reviewers: rsmith, echristo
Subscribers: aemerson, tberghammer, cfe-commits, danalbert, mehdi_amini, srhines
Differential Revision: http://reviews.llvm.org/D21334
llvm-svn: 274409
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