diff options
Diffstat (limited to 'poky/meta/recipes-devtools/qemu/qemu/0009-target-ppc-Update-fmadd-for-new-flags.patch')
| -rw-r--r-- | poky/meta/recipes-devtools/qemu/qemu/0009-target-ppc-Update-fmadd-for-new-flags.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/poky/meta/recipes-devtools/qemu/qemu/0009-target-ppc-Update-fmadd-for-new-flags.patch b/poky/meta/recipes-devtools/qemu/qemu/0009-target-ppc-Update-fmadd-for-new-flags.patch new file mode 100644 index 0000000000..2e723582b7 --- /dev/null +++ b/poky/meta/recipes-devtools/qemu/qemu/0009-target-ppc-Update-fmadd-for-new-flags.patch @@ -0,0 +1,102 @@ +From ce768160ee1ee9673d60e800389c41b3c707411a Mon Sep 17 00:00:00 2001 +From: Richard Henderson <richard.henderson@linaro.org> +Date: Fri, 17 Dec 2021 17:57:15 +0100 +Subject: [PATCH 09/21] target/ppc: Update fmadd for new flags +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Now that vximz, vxisi, and vxsnan are computed directly by +softfloat, we don't need to recompute it. This replaces the +separate float{32,64}_maddsub_update_excp functions with a +single float_invalid_op_madd function. + +Fix VSX_MADD by passing sfprf to float_invalid_op_madd, +whereas the previous *_maddsub_update_excp assumed it true. + +Upstream-Status: Backport +[https://git.qemu.org/?p=qemu.git;a=commit;h=e4052bb773cc829a27786d68caa22f28cff19d39] + +Signed-off-by: Richard Henderson <richard.henderson@linaro.org> +Message-Id: <20211119160502.17432-19-richard.henderson@linaro.org> +Signed-off-by: Cédric Le Goater <clg@kaod.org> +Signed-off-by: Xiangyu Chen <xiangyu.chen@windriver.com> +--- + target/ppc/fpu_helper.c | 46 ++++++++++------------------------------- + 1 file changed, 11 insertions(+), 35 deletions(-) + +diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c +index 2ab34236a3..3b1cb25666 100644 +--- a/target/ppc/fpu_helper.c ++++ b/target/ppc/fpu_helper.c +@@ -639,38 +639,15 @@ uint64_t helper_frim(CPUPPCState *env, uint64_t arg) + return do_fri(env, arg, float_round_down); + } + +-#define FPU_MADDSUB_UPDATE(NAME, TP) \ +-static void NAME(CPUPPCState *env, TP arg1, TP arg2, TP arg3, \ +- unsigned int madd_flags, uintptr_t retaddr) \ +-{ \ +- if (TP##_is_signaling_nan(arg1, &env->fp_status) || \ +- TP##_is_signaling_nan(arg2, &env->fp_status) || \ +- TP##_is_signaling_nan(arg3, &env->fp_status)) { \ +- /* sNaN operation */ \ +- float_invalid_op_vxsnan(env, retaddr); \ +- } \ +- if ((TP##_is_infinity(arg1) && TP##_is_zero(arg2)) || \ +- (TP##_is_zero(arg1) && TP##_is_infinity(arg2))) { \ +- /* Multiplication of zero by infinity */ \ +- float_invalid_op_vximz(env, 1, retaddr); \ +- } \ +- if ((TP##_is_infinity(arg1) || TP##_is_infinity(arg2)) && \ +- TP##_is_infinity(arg3)) { \ +- uint8_t aSign, bSign, cSign; \ +- \ +- aSign = TP##_is_neg(arg1); \ +- bSign = TP##_is_neg(arg2); \ +- cSign = TP##_is_neg(arg3); \ +- if (madd_flags & float_muladd_negate_c) { \ +- cSign ^= 1; \ +- } \ +- if (aSign ^ bSign ^ cSign) { \ +- float_invalid_op_vxisi(env, 1, retaddr); \ +- } \ +- } \ ++static void float_invalid_op_madd(CPUPPCState *env, int flags, ++ bool set_fpcc, uintptr_t retaddr) ++{ ++ if (flags & float_flag_invalid_imz) { ++ float_invalid_op_vximz(env, set_fpcc, retaddr); ++ } else { ++ float_invalid_op_addsub(env, flags, set_fpcc, retaddr); ++ } + } +-FPU_MADDSUB_UPDATE(float32_maddsub_update_excp, float32) +-FPU_MADDSUB_UPDATE(float64_maddsub_update_excp, float64) + + #define FPU_FMADD(op, madd_flags) \ + uint64_t helper_##op(CPUPPCState *env, uint64_t arg1, \ +@@ -682,8 +659,7 @@ uint64_t helper_##op(CPUPPCState *env, uint64_t arg1, \ + flags = get_float_exception_flags(&env->fp_status); \ + if (flags) { \ + if (flags & float_flag_invalid) { \ +- float64_maddsub_update_excp(env, arg1, arg2, arg3, \ +- madd_flags, GETPC()); \ ++ float_invalid_op_madd(env, flags, 1, GETPC()); \ + } \ + do_float_check_status(env, GETPC()); \ + } \ +@@ -2087,8 +2063,8 @@ void helper_##op(CPUPPCState *env, ppc_vsr_t *xt, \ + env->fp_status.float_exception_flags |= tstat.float_exception_flags; \ + \ + if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { \ +- tp##_maddsub_update_excp(env, xa->fld, b->fld, \ +- c->fld, maddflgs, GETPC()); \ ++ float_invalid_op_madd(env, tstat.float_exception_flags, \ ++ sfprf, GETPC()); \ + } \ + \ + if (r2sp) { \ +-- +2.17.1 + |