From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 17 Dec 2021 16:57:15 +0000 (+0100)
Subject: target/ppc: Use helper_todouble in do_frsp
X-Git-Tag: v7.0.0-rc0~124^2~59
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=58c7edef6163dd9a136e64149b08eec3f5778f37;p=thirdparty%2Fqemu.git

target/ppc: Use helper_todouble in do_frsp

We only needed one ieee arithmetic operation to raise
exceptions.  To convert back to register form, we can
use our simpler non-arithmetic function.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211119160502.17432-24-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---

diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 65acf605b78..870a861e36a 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -729,7 +729,7 @@ static uint64_t do_frsp(CPUPPCState *env, uint64_t arg, uintptr_t retaddr)
     if (unlikely(flags & float_flag_invalid_snan)) {
         float_invalid_op_vxsnan(env, retaddr);
     }
-    return float32_to_float64(f32, &env->fp_status);
+    return helper_todouble(f32);
 }
 
 uint64_t helper_frsp(CPUPPCState *env, uint64_t arg)