target/arm: Implement FPCR.AH semantics for SVE FMIN/FMAX vector

Implement the FPCR.AH semantics for the SVE FMAX and FMIN
operations that take two vector operands.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/arm/tcg/helper-sve.h b/target/arm/tcg/helper-sve.h
index 3c1d2624ed4e273d6ff1dfe4cf3ba1d1d1c9df74..918f2e61b7e0aa473ae05f1112cae1964165ef66 100644 (file)
--- a/target/arm/tcg/helper-sve.h
+++ b/target/arm/tcg/helper-sve.h
@@ -1140,6 +1140,20 @@ DEF_HELPER_FLAGS_6(sve_fmax_s, TCG_CALL_NO_RWG,
 DEF_HELPER_FLAGS_6(sve_fmax_d, TCG_CALL_NO_RWG,
                    void, ptr, ptr, ptr, ptr, fpst, i32)
 
+DEF_HELPER_FLAGS_6(sve_ah_fmin_h, TCG_CALL_NO_RWG,
+                   void, ptr, ptr, ptr, ptr, fpst, i32)
+DEF_HELPER_FLAGS_6(sve_ah_fmin_s, TCG_CALL_NO_RWG,
+                   void, ptr, ptr, ptr, ptr, fpst, i32)
+DEF_HELPER_FLAGS_6(sve_ah_fmin_d, TCG_CALL_NO_RWG,
+                   void, ptr, ptr, ptr, ptr, fpst, i32)
+
+DEF_HELPER_FLAGS_6(sve_ah_fmax_h, TCG_CALL_NO_RWG,
+                   void, ptr, ptr, ptr, ptr, fpst, i32)
+DEF_HELPER_FLAGS_6(sve_ah_fmax_s, TCG_CALL_NO_RWG,
+                   void, ptr, ptr, ptr, ptr, fpst, i32)
+DEF_HELPER_FLAGS_6(sve_ah_fmax_d, TCG_CALL_NO_RWG,
+                   void, ptr, ptr, ptr, ptr, fpst, i32)
+
 DEF_HELPER_FLAGS_6(sve_fminnum_h, TCG_CALL_NO_RWG,
                    void, ptr, ptr, ptr, ptr, fpst, i32)
 DEF_HELPER_FLAGS_6(sve_fminnum_s, TCG_CALL_NO_RWG,

diff --git a/target/arm/tcg/sve_helper.c b/target/arm/tcg/sve_helper.c
index 2f6fc82ee4f291943ba2c483c730d43ccf27c536..a688b98d2841040d8d717e21dab0827f21630503 100644 (file)
--- a/target/arm/tcg/sve_helper.c
+++ b/target/arm/tcg/sve_helper.c
@@ -4347,6 +4347,14 @@ DO_ZPZZ_FP(sve_fmax_h, uint16_t, H1_2, float16_max)
 DO_ZPZZ_FP(sve_fmax_s, uint32_t, H1_4, float32_max)
 DO_ZPZZ_FP(sve_fmax_d, uint64_t, H1_8, float64_max)
 
+DO_ZPZZ_FP(sve_ah_fmin_h, uint16_t, H1_2, helper_vfp_ah_minh)
+DO_ZPZZ_FP(sve_ah_fmin_s, uint32_t, H1_4, helper_vfp_ah_mins)
+DO_ZPZZ_FP(sve_ah_fmin_d, uint64_t, H1_8, helper_vfp_ah_mind)
+
+DO_ZPZZ_FP(sve_ah_fmax_h, uint16_t, H1_2, helper_vfp_ah_maxh)
+DO_ZPZZ_FP(sve_ah_fmax_s, uint32_t, H1_4, helper_vfp_ah_maxs)
+DO_ZPZZ_FP(sve_ah_fmax_d, uint64_t, H1_8, helper_vfp_ah_maxd)
+
 DO_ZPZZ_FP(sve_fminnum_h, uint16_t, H1_2, float16_minnum)
 DO_ZPZZ_FP(sve_fminnum_s, uint32_t, H1_4, float32_minnum)
 DO_ZPZZ_FP(sve_fminnum_d, uint64_t, H1_8, float64_minnum)

diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
index 187bd647c29e958f08662e5bc9400878e8c8d8f6..2813e5f48719e70d42728fd7530177e01ddd2a24 100644 (file)
--- a/target/arm/tcg/translate-sve.c
+++ b/target/arm/tcg/translate-sve.c
@@ -3759,11 +3759,24 @@ TRANS_FEAT_NONSTREAMING(FTSMUL, aa64_sve, gen_gvec_fpst_arg_zzz,
     };                                                          \
     TRANS_FEAT(NAME, FEAT, gen_gvec_fpst_arg_zpzz, name##_zpzz_fns[a->esz], a)
 
+#define DO_ZPZZ_AH_FP(NAME, FEAT, name, ah_name)                        \
+    static gen_helper_gvec_4_ptr * const name##_zpzz_fns[4] = {         \
+        NULL,                  gen_helper_##name##_h,                   \
+        gen_helper_##name##_s, gen_helper_##name##_d                    \
+    };                                                                  \
+    static gen_helper_gvec_4_ptr * const name##_ah_zpzz_fns[4] = {      \
+        NULL,                  gen_helper_##ah_name##_h,                \
+        gen_helper_##ah_name##_s, gen_helper_##ah_name##_d              \
+    };                                                                  \
+    TRANS_FEAT(NAME, FEAT, gen_gvec_fpst_arg_zpzz,                      \
+               s->fpcr_ah ? name##_ah_zpzz_fns[a->esz] :                \
+               name##_zpzz_fns[a->esz], a)
+
 DO_ZPZZ_FP(FADD_zpzz, aa64_sve, sve_fadd)
 DO_ZPZZ_FP(FSUB_zpzz, aa64_sve, sve_fsub)
 DO_ZPZZ_FP(FMUL_zpzz, aa64_sve, sve_fmul)
-DO_ZPZZ_FP(FMIN_zpzz, aa64_sve, sve_fmin)
-DO_ZPZZ_FP(FMAX_zpzz, aa64_sve, sve_fmax)
+DO_ZPZZ_AH_FP(FMIN_zpzz, aa64_sve, sve_fmin, sve_ah_fmin)
+DO_ZPZZ_AH_FP(FMAX_zpzz, aa64_sve, sve_fmax, sve_ah_fmax)
 DO_ZPZZ_FP(FMINNM_zpzz, aa64_sve, sve_fminnum)
 DO_ZPZZ_FP(FMAXNM_zpzz, aa64_sve, sve_fmaxnum)
 DO_ZPZZ_FP(FABD, aa64_sve, sve_fabd)