https://bugs.llvm.org/show_bug.cgi?id=52242
Bug ID: 52242
Summary: set default values for -march and -mtune
Product: Build scripts
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: cmake
Assignee: unassignedb...@nondot.org
Reporter: chinoune.me...@hotmail.com
CC: llvm-bugs@lists.llvm.org
gcc has configuration options that set default values [1] for -march and
-mtune.
It would be useful to add an equivalent one to Clang.
I need this to setup a developement environnement where clang default to
-march=-x86-64-v3
[1]
https://gcc.gnu.org/install/configure.html
--with-schedule=cpu
--with-arch=cpu
--with-arch-32=cpu
--with-arch-64=cpu
--with-tune=cpu
--with-tune-32=cpu
--with-tune-64=cpu
--with-abi=abi
--with-fpu=type
--with-float=type
These configure options provide default values for the -mschedule=, -march=,
-mtune=, -mabi=, and -mfpu= options and for -mhard-float or -msoft-float. As
with --with-cpu, which switches will be accepted and acceptable values of the
arguments depend on the target.
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