On 2/10/20 9:24 PM, Segher Boessenkool wrote:
Hi!
On Mon, Feb 10, 2020 at 01:45:42PM -0500, Michael Meissner wrote:
This patch renames the PowerPC internal switch -mprefixed-addr to be
-mprefixed.
If you use -mpcrel, you must be using the 64-bit ELF v2 ABI, and the code model
must be medium.
Currently, anyway.
If you use -mpcrel, the compiler will generate PC-relative
loads and stores to access items, rather than the current TOC based loads and
stores.
Where that is the best thing to do. Is that always now? :-)
Yes. :-)
Bill
If you use -mpcrel, it implies -mprefixed. If you use -mno-prefixed, you
cannot use -mpcrel.
-mno-prefixed should imply -mno-pcrel; does it?
* doc/invoke.texi (RS/6000 and PowerPC Options): Docment the
(typo)
--- /tmp/1ySv8k_invoke.texi 2020-02-07 17:56:52.700489015 -0500
+++ gcc/doc/invoke.texi 2020-02-07 17:34:02.925611138 -0500
@@ -22327,7 +22328,6 @@ faster on processors with 32-bit busses
aligns structures containing the above types differently than
most published application binary interface specifications for the m68k.
-@item -mpcrel
@opindex mpcrel
Use the pc-relative addressing mode of the 68000 directly, instead of
using a global offset table. At present, this option implies @option{-fpic},
This isn't a correct change.
Okay for trunk modulo the m68k change. Thanks!
Segher
