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d18b065286
The patch below fixes a bug in the VSX_CVT_FP_TO_INT and VSX_CVT_FP_TO_INT2 macros in target/ppc/fpu_helper.c where a non-NaN floating point value from the source vector is incorrectly converted to 0, 0x80000000, or 0x8000000000000000 instead of the expected value if a preceding source floating point value from the same source vector was a NaN. The bug in the VSX_CVT_FP_TO_INT and VSX_CVT_FP_TO_INT2 macros in target/ppc/fpu_helper.c was introduced with commitc3f24257e3. This patch also adds a new vsx_f2i_nan test in tests/tcg/ppc64 that checks that the VSX xvcvspsxws, xvcvspuxws, xvcvspsxds, xvcvspuxds, xvcvdpsxws, xvcvdpuxws, xvcvdpsxds, and xvcvdpuxds instructions correctly convert non-NaN floating point values to integer values if the source vector contains NaN floating point values. Fixes:c3f24257e3("target/ppc: Clear fpstatus flags on helpers missing it") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1941 Signed-off-by: John Platts <john_platts@hotmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Cédric Le Goater <clg@kaod.org>