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+
+
+ppc64: VSX vector float to integer conversion instructions do not always return expected results on QEMU 8.0.4 if source vector has NaN values
+Description of problem:
+The problem is that the VSX xvcvspsxws/xvcvdpsxws/xvcvspsxds/xvcvdpsxds/xvcvspuxws/xvcvdpuxds/xvcvspuxds/xvcvdpuxws instructions incorrectly convert the preceding non-NaN source values to the NaN to integer result instead of the expected non-NaN to integer conversion result with qemu-ppc64le 8.0.4.
+
+Here are the results of the VSX operations whose results differ from the expected results with QEMU 8.0.4 (generated by running the vsx_f2i_nan_test_program_101423 test program with qemu-ppc64le 8.0.4):
+```
+xvcvspsxds ({1, 2, 3, nan}) = {-9223372036854775808, -9223372036854775808}
+xvcvspsxds ({nan, 2, 3, nan}) = {-9223372036854775808, -9223372036854775808}
+xvcvspsxds ({1, 2, nan, nan}) = {-9223372036854775808, -9223372036854775808}
+xvcvspsxds ({nan, 2, nan, nan}) = {-9223372036854775808, -9223372036854775808}
+
+xvcvspsxws ({1, nan, 3, 4}) = {-2147483648, -2147483648, 3, 4}
+xvcvspsxws ({1, 2, nan, 4}) = {-2147483648, -2147483648, -2147483648, 4}
+xvcvspsxws ({nan, 2, nan, 4}) = {-2147483648, -2147483648, -2147483648, 4}
+xvcvspsxws ({1, nan, nan, 4}) = {-2147483648, -2147483648, -2147483648, 4}
+xvcvspsxws ({1, 2, 3, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+xvcvspsxws ({nan, 2, 3, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+xvcvspsxws ({1, nan, 3, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+xvcvspsxws ({nan, nan, 3, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+xvcvspsxws ({1, 2, nan, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+xvcvspsxws ({nan, 2, nan, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+xvcvspsxws ({1, nan, nan, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+
+xvcvspuxds ({1, 2, 3, nan}) = {0, 0}
+xvcvspuxds ({nan, 2, 3, nan}) = {0, 0}
+xvcvspuxds ({1, 2, nan, nan}) = {0, 0}
+xvcvspuxds ({nan, 2, nan, nan}) = {0, 0}
+
+xvcvspuxws ({1, nan, 3, 4}) = {0, 0, 3, 4}
+xvcvspuxws ({1, 2, nan, 4}) = {0, 0, 0, 4}
+xvcvspuxws ({nan, 2, nan, 4}) = {0, 0, 0, 4}
+xvcvspuxws ({1, nan, nan, 4}) = {0, 0, 0, 4}
+xvcvspuxws ({1, 2, 3, nan}) = {0, 0, 0, 0}
+xvcvspuxws ({nan, 2, 3, nan}) = {0, 0, 0, 0}
+xvcvspuxws ({1, nan, 3, nan}) = {0, 0, 0, 0}
+xvcvspuxws ({nan, nan, 3, nan}) = {0, 0, 0, 0}
+xvcvspuxws ({1, 2, nan, nan}) = {0, 0, 0, 0}
+xvcvspuxws ({nan, 2, nan, nan}) = {0, 0, 0, 0}
+xvcvspuxws ({1, nan, nan, nan}) = {0, 0, 0, 0}
+
+xvcvdpsxws ({1, nan}) = {-2147483648, -2147483648, -2147483648, -2147483648}
+
+xvcvdpuxws ({1, nan}) = {0, 0, 0, 0}
+
+xvcvdpsxds ({1, nan}) = {-9223372036854775808, -9223372036854775808}
+
+xvcvdpuxds ({1, nan}) = {0, 0}
+```
+
+Here are the results of the same VSX conversion operations with QEMU 6.2.0 (generated by running the vsx_f2i_nan_test_program_101423 test program with qemu-ppc64le 6.2.0):
+```
+xvcvspsxds ({1, 2, 3, nan}) = {2, -9223372036854775808}
+xvcvspsxds ({nan, 2, 3, nan}) = {2, -9223372036854775808}
+xvcvspsxds ({1, 2, nan, nan}) = {2, -9223372036854775808}
+xvcvspsxds ({nan, 2, nan, nan}) = {2, -9223372036854775808}
+
+xvcvspsxws ({1, nan, 3, 4}) = {1, -2147483648, 3, 4}
+xvcvspsxws ({1, 2, nan, 4}) = {1, 2, -2147483648, 4}
+xvcvspsxws ({nan, 2, nan, 4}) = {-2147483648, 2, -2147483648, 4}
+xvcvspsxws ({1, nan, nan, 4}) = {1, -2147483648, -2147483648, 4}
+xvcvspsxws ({1, 2, 3, nan}) = {1, 2, 3, -2147483648}
+xvcvspsxws ({nan, 2, 3, nan}) = {-2147483648, 2, 3, -2147483648}
+xvcvspsxws ({1, nan, 3, nan}) = {1, -2147483648, 3, -2147483648}
+xvcvspsxws ({nan, nan, 3, nan}) = {-2147483648, -2147483648, 3, -2147483648}
+xvcvspsxws ({1, 2, nan, nan}) = {1, 2, -2147483648, -2147483648}
+xvcvspsxws ({nan, 2, nan, nan}) = {-2147483648, 2, -2147483648, -2147483648}
+xvcvspsxws ({1, nan, nan, nan}) = {1, -2147483648, -2147483648, -2147483648}
+
+xvcvspuxds ({1, 2, 3, nan}) = {2, 0}
+xvcvspuxds ({nan, 2, 3, nan}) = {2, 0}
+xvcvspuxds ({1, 2, nan, nan}) = {2, 0}
+xvcvspuxds ({nan, 2, nan, nan}) = {2, 0}
+
+xvcvspuxws ({1, nan, 3, 4}) = {1, 0, 3, 4}
+xvcvspuxws ({1, 2, nan, 4}) = {1, 2, 0, 4}
+xvcvspuxws ({nan, 2, nan, 4}) = {0, 2, 0, 4}
+xvcvspuxws ({1, nan, nan, 4}) = {1, 0, 0, 4}
+xvcvspuxws ({1, 2, 3, nan}) = {1, 2, 3, 0}
+xvcvspuxws ({nan, 2, 3, nan}) = {0, 2, 3, 0}
+xvcvspuxws ({1, nan, 3, nan}) = {1, 0, 3, 0}
+xvcvspuxws ({nan, nan, 3, nan}) = {0, 0, 3, 0}
+xvcvspuxws ({1, 2, nan, nan}) = {1, 2, 0, 0}
+xvcvspuxws ({nan, 2, nan, nan}) = {0, 2, 0, 0}
+xvcvspuxws ({1, nan, nan, nan}) = {1, 0, 0, 0}
+
+xvcvdpsxws ({1, nan}) = {0, 1, 0, -2147483648}
+
+xvcvdpuxws ({1, nan}) = {0, 1, 0, 0}
+
+xvcvdpsxds ({1, nan}) = {1, -9223372036854775808}
+
+xvcvdpuxds ({1, nan}) = {1, 0}
+```
+Steps to reproduce:
+1. Compile the attached vsx_f2i_nan_test_program_101423.cpp with either `powerpc64le-linux-gnu-g++` or `clang --target=powerpc64le-linux-gnu`
+2. Run the compiled vsx_f2i_nan_test_program_101423.cpp program using qemu-ppc64le
+3. The vsx_f2i_nan_test_program_101423 program will return the results of the xvcvspsxws, xvcvdpsxws, xvcvspsxds, xvcvdpsxds, xvcvspuxws, xvcvdpuxds, xvcvspuxds, or xvcvdpuxws instruction.
+Additional information:
+Attachments:
+- [vsx_f2i_nan_test_program_101423.cpp](/uploads/749395aee2da1dcc86790804106d30ea/vsx_f2i_nan_test_program_101423.cpp)
+- [vsx_f2i_nan_test_program_101423_qemu_6.2.0_output.txt](/uploads/c883c4d04730a9c5a7e301e5d487ae2b/vsx_f2i_nan_test_program_101423_qemu_6.2.0_output.txt) - output of running vsx_f2i_nan_test_program_101423 with QEMU 6.2.0
+- [vsx_f2i_nan_test_program_101423_qemu_8.0.4_output.txt](/uploads/9451e3419f8a4f3ef2274b2ccc7ef22d/vsx_f2i_nan_test_program_101423_qemu_8.0.4_output.txt) - output of running vsx_f2i_nan_test_program_101423 with QEMU 8.0.4