On 11/23/2016 07:45 AM, Richard Sandiford wrote:
Previously decimal floating-point types were created and laid
out as binary floating-point types, then the caller changed
the mode to a decimal mode later. The problem with that
approach is that not all targets support an equivalent binary
floating-point mode. When they didn't, we would give the
type BLKmode and lay it out as a zero-sized type.
This probably had no effect in practice. If a target doesn't
support a binary mode then it's unlikely to support the decimal
equivalent either. However, with the stricter mode checking
added by later patches, we would assert if a scalar floating-
point type didn't have a scalar floating-point mode.
Tested on aarch64-linux-gnu, x86_64-linux-gnu and powerpc64-linux-gnu.
OK to install?
Thanks,
Richard
[ This patch is part of the SVE series posted here:
https://gcc.gnu.org/ml/gcc/2016-11/msg00030.html ]
gcc/
2016-11-16 Richard Sandiford <richard.sandif...@arm.com>
Alan Hayward <alan.hayw...@arm.com>
David Sherwood <david.sherw...@arm.com>
* stor-layout.c (layout_type): Allow the caller to set the mode of
a float type. Only choose one here if the mode is still VOIDmode.
* tree.c (build_common_tree_nodes): Set the type mode of decimal
floats before calling layout_type.
* config/rs6000/rs6000.c (rs6000_init_builtins): Likewise.
OK.
jeff
