https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102059
Bug ID: 102059
Summary: Incorrect always_inline diagnostic in LTO mode with
#pragma GCC target("cpu=power10")
Product: gcc
Version: 11.2.1
Status: UNCONFIRMED
Keywords: diagnostic, rejects-valid
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: fw at gcc dot gnu.org
CC: marxin at gcc dot gnu.org
Target Milestone: ---
Target: ppc64le-redhat-linux
Created attachment 51354
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51354&action=edit
basic_op.ii.xz
To reproduce, compile the attached file with:
g++ -c -O2 -flto -mcpu=power8 basic_op.ii
In file included from
/usr/include/eigen3/Eigen/src/Core/arch/AltiVec/MatrixProduct.h:18,
from /usr/include/eigen3/Eigen/Core:350,
from /builddir/build/BUILD/gdl-1.0.0/src/includefirst.hpp:49,
from /builddir/build/BUILD/gdl-1.0.0/src/basegdl.hpp:21,
from /builddir/build/BUILD/gdl-1.0.0/src/nullgdl.hpp:21,
from /builddir/build/BUILD/gdl-1.0.0/src/basic_op.cpp:27:
/usr/include/eigen3/Eigen/src/Core/arch/AltiVec/MatrixProductMMA.h: In function
Eigen::internal::ploadRhsMMA<float, float __vector(4)>(float const*, float
__vector(4)&)void’:
/usr/include/eigen3/Eigen/src/Core/arch/AltiVec/MatrixProductCommon.h:215:46:
error: inlining failed in call to ‘always_inline’
‘Eigen::internal::ploadRhs<float, float __vector(4)>(float const*)float
__vector(4)’: target specific option mismatch
215 | EIGEN_ALWAYS_INLINE Packet ploadRhs(const Scalar* rhs)
| ^~~~~~~~
In file included from
/usr/include/eigen3/Eigen/src/Core/arch/AltiVec/MatrixProduct.h:38,
from /usr/include/eigen3/Eigen/Core:350,
from /builddir/build/BUILD/gdl-1.0.0/src/includefirst.hpp:49,
from /builddir/build/BUILD/gdl-1.0.0/src/basegdl.hpp:21,
from /builddir/build/BUILD/gdl-1.0.0/src/nullgdl.hpp:21,
from /builddir/build/BUILD/gdl-1.0.0/src/basic_op.cpp:27:
/usr/include/eigen3/Eigen/src/Core/arch/AltiVec/MatrixProductMMA.h:128:34:
note: called from here
128 | rhsV = ploadRhs<Scalar, Packet>((const Scalar*)(rhs));
| ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
The reproducer is minimally reduced code from gdl (GNU Data Language) which
uses the Eigen library.
The error does not happen if -flto is removed.
