Commit Graph

4 Commits

Author SHA1 Message Date
Matt Arsenault 3fe7395fbc AMDGPU: Use direct struct returns and arguments
This is an improvement over always using byval for
structs.

This will use registers until ~16 are used, and then
switch back to byval. This needs more work, since I'm
not sure it ever really makes sense to use byval. If
the register limit is exceeded, the arguments still
end up passed on the stack, but with a different ABI.
It also may make sense to base this on number of
registers used for non-struct arguments, rather than
just arguments that appear first in the argument list.

llvm-svn: 310527
2017-08-09 21:44:58 +00:00
Yaxun Liu e9e5c4f975 CodeGen: Fix invalid bitcast for coerced function argument
Clang assumes coerced function argument is in address space 0, which is not always true and results in invalid bitcasts.

This patch fixes failure in OpenCL conformance test api/get_kernel_arg_info with amdgcn---amdgizcl triple, where non-zero alloca address space is used.

Differential Revision: https://reviews.llvm.org/D34777

llvm-svn: 306721
2017-06-29 18:47:45 +00:00
NAKAMURA Takumi 729be14435 Prune CRLF.
llvm-svn: 220678
2014-10-27 12:37:26 +00:00
Guy Benyei 3832bfd557 Fix indirect byval passing of records in address spaced memory. Allocate memory on stack, and memcpy the actual value before the call.
llvm-svn: 176786
2013-03-10 12:59:00 +00:00