https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114370
Bug ID: 114370
Summary: _mm_srli_si128 fails to compile with PCH that uses
pragma GCC optimize
Product: gcc
Version: 13.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tellowkrinkle at gmail dot com
Target Milestone: ---
To reproduce:
1. Create the following files:
PCH.h:
#pragma once
#pragma GCC push_options
#pragma GCC optimize("Og")
struct monostate {
constexpr monostate() {}
};
#pragma GCC pop_options
GSState.cpp:
#include <immintrin.h>
__m128i GIFPackedRegHandlerXYZF2(const __m128i* r)
{
return _mm_srli_si128(*r, 4);
}
PCH.cpp: <empty file>
2. `g++ -x c++-header -include PCH.h -c PCH.cpp -o PCH.h.gch`
3. `g++ -include PCH.h -c GSState.cpp -o GSState.o`
(3) fails with
In file included from
/usr/lib/gcc/x86_64-redhat-linux/13/include/xmmintrin.h:1322,
from
/usr/lib/gcc/x86_64-redhat-linux/13/include/immintrin.h:31,
from GSState.cpp:4:
In function ‘__m128i _mm_srli_si128(__m128i, int)’,
inlined from ‘__m128i GIFPackedRegHandlerXYZF2(const __m128i*)’ at
GSState.cpp:8:23:
/usr/lib/gcc/x86_64-redhat-linux/13/include/emmintrin.h:1229:10: error: the
last argument must be an 8-bit immediate
1229 | return (__m128i)__builtin_ia32_psrldqi128 (__A, __N * 8);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
`gcc -v`:
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/13/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-redhat-linux
Configured with: ../configure --enable-bootstrap
--enable-languages=c,c++,fortran,objc,obj-c++,ada,go,d,m2,lto --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-shared
--enable-threads=posix --enable-checking=release --enable-multilib
--with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions
--enable-gnu-unique-object --enable-linker-build-id
--with-gcc-major-version-only --enable-libstdcxx-backtrace
--with-libstdcxx-zoneinfo=/usr/share/zoneinfo --with-linker-hash-style=gnu
--enable-plugin --enable-initfini-array
--with-isl=/builddir/build/BUILD/gcc-13.2.1-20231205/obj-x86_64-redhat-linux/isl-install
--enable-offload-targets=nvptx-none --without-cuda-driver
--enable-offload-defaulted --enable-gnu-indirect-function --enable-cet
--with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
--with-build-config=bootstrap-lto --enable-link-serialization=1
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.2.1 20231205 (Red Hat 13.2.1-6) (GCC)
