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| author | Oliver Stannard <oliver.stannard@arm.com> | 2014-03-12 14:02:50 +0000 |
|---|---|---|
| committer | Oliver Stannard <oliver.stannard@arm.com> | 2014-03-12 14:02:50 +0000 |
| commit | 7c3c09e23fe4b2752dbbf957d6bebbf72e7b0319 (patch) | |
| tree | ed1cd4427f1323a6b6e326834dd86179f6203c38 /clang/lib/CodeGen/TargetInfo.cpp | |
| parent | 61c76cc56fc4481425e65f69eb32eece5d7c08df (diff) | |
| download | bcm5719-llvm-7c3c09e23fe4b2752dbbf957d6bebbf72e7b0319.tar.gz bcm5719-llvm-7c3c09e23fe4b2752dbbf957d6bebbf72e7b0319.zip | |
ARM: Correct alignment of structs passed as byval pointer
When a struct has bitfields overlapping with other members
(as required by the AAPCS), clang uses a packed struct to
represent this. If such a struct is large enough for clang to
pass it as a byval pointer (>64 bytes), we need to set the
alignment of the argument to match the original type.
llvm-svn: 203660
Diffstat (limited to 'clang/lib/CodeGen/TargetInfo.cpp')
| -rw-r--r-- | clang/lib/CodeGen/TargetInfo.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp index b7d45cf91c3..b0eccd7a17e 100644 --- a/clang/lib/CodeGen/TargetInfo.cpp +++ b/clang/lib/CodeGen/TargetInfo.cpp @@ -3649,7 +3649,7 @@ ABIArgInfo ARMABIInfo::classifyArgumentType(QualType Ty, bool &IsHA, if (getContext().getTypeSizeInChars(Ty) > CharUnits::fromQuantity(64)) { // Update Allocated GPRs markAllocatedGPRs(1, 1); - return ABIArgInfo::getIndirect(0, /*ByVal=*/true, + return ABIArgInfo::getIndirect(TyAlign, /*ByVal=*/true, /*Realign=*/TyAlign > ABIAlign); } |
