add zero-shot results

1 files changed, 74 insertions, 0 deletions

diff --git a/results/classifier/zero-shot-user-mode/output/runtime/2487 b/results/classifier/zero-shot-user-mode/output/runtime/2487
new file mode 100644
index 000000000..c3fc0e725
--- /dev/null
+++ b/results/classifier/zero-shot-user-mode/output/runtime/2487
@@ -0,0 +1,74 @@
+runtime: 0.459
+syscall: 0.341
+instruction: 0.200
+
+
+
+qemu-x86_64: qemu/tcg/ppc/tcg-target.c.inc:1777:tcg_out_test: code should not be reached
+Description of problem:
+Using this basic test file:
+
+```c
+int
+main (void)
+{
+    return 0;
+}
+```
+
+compiled into a static executable using an x86_64 toolchain (glibc or musl both tested),
+
+```
+gwyn ~/qemu-bug # file test1
+test1: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), static-pie linked, with debug_info, not stripped
+
+gwyn ~/qemu-bug # file test2
+test2: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, BuildID[sha1]=276dc49ee7cbd3b760e24761bf9fb9e1cc4b4349, for GNU/Linux 3.2.0, not stripped
+```
+
+Using QEMU from 15957eb9efe2da67c796612cead95cba28ba9bda or newer:
+
+```
+gwyn ~/qemu-bug # ../emus-ppc64/bin/qemu-x86_64 --version
+qemu-x86_64 version 9.0.50 (v9.0.0-521-g15957eb9ef-dirty)
+Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers
+```
+
+QEMU crashes:
+
+```
+gwyn ~/qemu-bug # ../emus-ppc64/bin/qemu-x86_64 ./test2
+**
+ERROR:/root/qemu/tcg/ppc/tcg-target.c.inc:1777:tcg_out_test: code should not be reached
+Bail out! ERROR:/root/qemu/tcg/ppc/tcg-target.c.inc:1777:tcg_out_test: code should not be reached
+Aborted
+```
+Steps to reproduce:
+1. Build QEMU user for ppc64 (may affect other hosts) using commit 15957eb9efe2da67c796612cead95cba28ba9bda or newer.
+2. Run any simple x86_64 executable.
+3. Observe the crash.
+Additional information:
+Bisected to here:
+
+```
+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/emit.c.inc  |  5 ++---
+ target/i386/tcg/translate.c | 28 ++++++++++++++++++++--------
+ 2 files changed, 22 insertions(+), 11 deletions(-)
+```