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Author SHA1 Message Date
Eli Friedman d5dfb62de7 [ARM] Honor -mfloat-abi for libcall calling convention 
As far as I can tell, this matches gcc: -mfloat-abi determines the
calling convention for all functions except those explicitly defined as
soft-float in the ARM RTABI.

This change only affects cases where the user specifies -mfloat-abi to
override the default calling convention derived from the target triple.

Fixes https://bugs.llvm.org//show_bug.cgi?id=34530.

Differential Revision: https://reviews.llvm.org/D38299

llvm-svn: 316708
 2017-10-26 21:42:32 +00:00
Saleem Abdulrasool 6ef45916c6 ARM: match GCC's behaviour for builtins 
GCC changes the CC between the user-code and the builtins based on the
value of `-target` rather than `-mfloat-abi`.  When a HF target is used,
the VFP variant of the AAPCS CC is used.  Otherwise, the AAPCS variant
is used.  In all cases, the AEABI functions use the AAPCS CC.  Adjust
the calling convention based on the target.

Resolves PR30543!

llvm-svn: 291909
 2017-01-13 16:25:33 +00:00