diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2016-09-15 10:24:22 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-09-15 10:24:22 +0100 |
| commit | 8212ff86f4405b6128d89dd1d97ff2d6cfcf9842 (patch) | |
| tree | 50f293d984cbe311cd984cb41989d85eb0fa5076 /configure | |
| parent | 507e4ddc3abf67391bcbc9624fd60b969c159b78 (diff) | |
| parent | 083d012a388e7e2a8bfd9144c2c9bcceb29a78fc (diff) | |
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* minor patches here and there
* MTTCG: lock-free TB lookup
* SCSI: bugfixes for MPTSAS, MegaSAS, LSI53c, vmw_pvscsi
* buffer_is_zero rewrite (except for one patch)
* chardev: qemu_chr_fe_write checks
* checkpatch improvement for markdown preformatted text
* default-configs cleanups
* atomics cleanups
# gpg: Signature made Tue 13 Sep 2016 18:14:30 BST
# gpg: using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1
# Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83
* remotes/bonzini/tags/for-upstream: (58 commits)
cutils: Add generic prefetch
cutils: Add SSE4 version
cutils: Add test for buffer_is_zero
cutils: Remove ppc buffer zero checking
cutils: Remove aarch64 buffer zero checking
cutils: Rearrange buffer_is_zero acceleration
cutils: Export only buffer_is_zero
cutils: Remove SPLAT macro
cutils: Move buffer_is_zero and subroutines to a new file
ppc: do not redefine CPUPPCState
x86/lapic: Load LAPIC state at post_load
optionrom: do not rely on compiler's bswap optimization
checkpatch: Fix whitespace checks for documentation code blocks
atomics: Use __atomic_*_n() variant primitives
atomics: Remove redundant barrier()'s
kvm-all: drop kvm_setup_guest_memory
i8257: Make device "i8257" unavailable with -device
Revert "megasas: remove useless check for cmd->frame"
char: convert qemu_chr_fe_write to qemu_chr_fe_write_all
hw: replace most use of qemu_chr_fe_write with qemu_chr_fe_write_all
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Conflicts:
cpus.c
tests/Makefile.include
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 21 |
1 files changed, 6 insertions, 15 deletions
@@ -1804,28 +1804,19 @@ fi ########################################## # avx2 optimization requirement check - -if test "$static" = "no" ; then - cat > $TMPC << EOF +cat > $TMPC << EOF #pragma GCC push_options #pragma GCC target("avx2") #include <cpuid.h> #include <immintrin.h> - static int bar(void *a) { - return _mm256_movemask_epi8(_mm256_cmpeq_epi8(*(__m256i *)a, (__m256i){0})); + __m256i x = *(__m256i *)a; + return _mm256_testz_si256(x, x); } -static void *bar_ifunc(void) {return (void*) bar;} -int foo(void *a) __attribute__((ifunc("bar_ifunc"))); -int main(int argc, char *argv[]) { return foo(argv[0]);} +int main(int argc, char *argv[]) { return bar(argv[0]); } EOF - if compile_object "" ; then - if has readelf; then - if readelf --syms $TMPO 2>/dev/null |grep -q "IFUNC.*foo"; then - avx2_opt="yes" - fi - fi - fi +if compile_object "" ; then + avx2_opt="yes" fi ######################################### |