diff options
Diffstat (limited to 'gitlab/issues_text/target_i386/host_x86/accel_TCG/2413')
| -rw-r--r-- | gitlab/issues_text/target_i386/host_x86/accel_TCG/2413 | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/gitlab/issues_text/target_i386/host_x86/accel_TCG/2413 b/gitlab/issues_text/target_i386/host_x86/accel_TCG/2413 deleted file mode 100644 index 4f645b213..000000000 --- a/gitlab/issues_text/target_i386/host_x86/accel_TCG/2413 +++ /dev/null @@ -1,33 +0,0 @@ -Use of TSTEQ/TSTNE has regressed the cdrom test when running a 32 bit build of qemu-system-x86_64 using TCG -Description of problem: -The test freezes, eventually timing out. The bisect was confused by other SEV related things so I had to whittle down the config to --disable-kvm. -Steps to reproduce: -1. '../../configure' '--disable-docs' '--disable-user' '--cross-prefix=i686-linux-gnu-' '--target-list=x86_64-softmmu' '--enable-debug' '--disable-kvm' -2. ninja -3. meson test -t 0.05 qtest-x86_64/cdrom-test V=1 -Additional information: -Bisect run pointed at: - -``` -commit 15957eb9efe2da67c796612cead95cba28ba9bda -Author: Paolo Bonzini <pbonzini@redhat.com> -Date: Fri Oct 27 05:57:31 2023 +0200 - - target/i386: use TSTEQ/TSTNE to test low bits - - When testing the sign bit or equality to zero of a partial register, it - is useful to use a single TSTEQ or TSTNE operation. It can also be used - to test the parity flag, using bit 0 of the population count. - - Do not do this for target_ulong-sized values however; the optimizer would - produce a comparison against zero anyway, and it avoids shifts by 64 - which are undefined behavior. - - Reviewed-by: Richard Henderson <richard.henderson@linaro.org> - Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> - - target/i386/tcg/translate.c | 28 ++++++++++++++++++++-------- - target/i386/tcg/emit.c.inc | 5 ++--- - 2 files changed, 22 insertions(+), 11 deletions(-) -bisect found first bad commitâ -``` |