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comment	@# @;


1.1
date	2026.07.19.11.17.44;	author adam;	state Exp;
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commitid	FhXjPkGd9j9WSfOG;


desc
@@


1.1
log
@gcc15: updated to 15.3

15.3
This release is a bug-fix release, containing fixes for regressions in
GCC 15.2 relative to previous releases of GCC.

PkgSrc:
Allow building on Darwin/aarch64.
@
text
@$NetBSD$

Support Darwin/aarch64.
https://github.com/Homebrew/homebrew-core/blob/main/Patches/gcc/gcc-15.3.0.diff

--- gcc/doc/invoke.texi.orig	2026-06-12 06:09:06.426522970 +0000
+++ gcc/doc/invoke.texi
@@@@ -757,7 +757,7 @@@@ Objective-C and Objective-C++ Dialects}.
 -freg-struct-return  -fshort-enums  -fshort-wchar
 -fverbose-asm  -fpack-struct[=@@var{n}]
 -fleading-underscore  -ftls-model=@@var{model}
--fstack-reuse=@@var{reuse_level}
+-fstack-reuse=@@var{reuse_level} -fstack-use-cumulative-args
 -ftrampolines -ftrampoline-impl=@@r{[}stack@@r{|}heap@@r{]}
 -ftrapv  -fwrapv
 -fvisibility=@@r{[}default@@r{|}internal@@r{|}hidden@@r{|}protected@@r{]}
@@@@ -986,7 +986,7 @@@@ Objective-C and Objective-C++ Dialects}.
 -twolevel_namespace  -umbrella  -undefined
 -unexported_symbols_list  -weak_reference_mismatches
 -whatsloaded  -F  -gused  -gfull  -mmacosx-version-min=@@var{version}
--mkernel  -mone-byte-bool}
+-mkernel  -mone-byte-bool -munreachable-traps}

 @@emph{DEC Alpha Options} (@@ref{DEC Alpha Options})
 @@gccoptlist{-mno-fp-regs  -msoft-float
@@@@ -19680,6 +19680,17 @@@@ the behavior of older compilers in which
 not reused, the aggressive stack reuse can lead to runtime errors. This
 option is used to control the temporary stack reuse optimization.

+@@opindex fstack_use_cumulative_args
+@@item -fstack-use-cumulative-args
+This option instructs the compiler to use the
+@@code{cumulative_args_t}-based stack layout target hooks,
+@@code{TARGET_FUNCTION_ARG_BOUNDARY_CA} and
+@@code{TARGET_FUNCTION_ARG_ROUND_BOUNDARY_CA}. If a given target does
+not define these hooks, the default behaviour is to fallback to using
+the standard non-@@code{_CA} variants instead. Certain targets (such as
+AArch64 Darwin) require using the more advanced @@code{_CA}-based
+hooks: For these targets this option should be enabled by default.
+
 @@opindex ftrapv
 @@item -ftrapv
 This option generates traps for signed overflow on addition, subtraction,
@@@@ -22026,7 +22037,7 @@@@ performance of the code.  Permissible va
 @@samp{cortex-a520}, @@samp{cortex-a520ae}, @@samp{cortex-a710}, @@samp{cortex-a715},
 @@samp{cortex-a720}, @@samp{cortex-a720ae}, @@samp{ampere1}, @@samp{ampere1a},
 @@samp{ampere1b}, @@samp{cobalt-100}, @@samp{apple-m1}, @@samp{apple-m2},
-@@samp{apple-m3} and @@samp{native}.
+@@samp{apple-m3}, @@samp{apple-m4} and @@samp{native}.

 The values @@samp{cortex-a57.cortex-a53}, @@samp{cortex-a72.cortex-a53},
 @@samp{cortex-a73.cortex-a35}, @@samp{cortex-a73.cortex-a53},
@@@@ -24107,7 +24118,7 @@@@ Permissible names are: @@samp{arm7tdmi},
 @@samp{neoverse-n1}, @@samp{neoverse-n2}, @@samp{neoverse-v1}, @@samp{xscale},
 @@samp{iwmmxt}, @@samp{iwmmxt2}, @@samp{ep9312}, @@samp{fa526}, @@samp{fa626},
 @@samp{fa606te}, @@samp{fa626te}, @@samp{fmp626}, @@samp{fa726te}, @@samp{star-mc1},
-@@samp{xgene1}.
+@@samp{xgene1}, @@samp{apple-m1}, @@samp{apple-m2}, @@samp{apple-m3}.

 Additionally, this option can specify that GCC should tune the performance
 of the code for a big.LITTLE system.  Permissible names are:
@@@@ -26171,6 +26182,11 @@@@ without that switch.  Using this switch
 other modules in a program, including system libraries.  Use this
 switch to conform to a non-default data model.

+@@opindex munreachable-traps
+@@item -munreachable-traps
+Causes @@code{__builtin_unreachable} to be rendered as a trap.  This is the
+default for all Darwin architectures.
+
 @@opindex mfix-and-continue
 @@opindex ffix-and-continue
 @@opindex findirect-data
@