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From: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net
Cc: qemu-devel@nongnu.org, bharata@linux.vnet.ibm.com,
	nikunj@linux.vnet.ibm.com
Subject: [Qemu-devel] [PATCH v1 03/14] target-ppc: Use float64 arg in helper_compute_fprf()
Date: Fri,  6 Jan 2017 11:44:45 +0530	[thread overview]
Message-ID: <1483683296-32568-4-git-send-email-nikunj@linux.vnet.ibm.com> (raw)
In-Reply-To: <1483683296-32568-1-git-send-email-nikunj@linux.vnet.ibm.com>

From: Bharata B Rao <bharata@linux.vnet.ibm.com>

Use float64 argument instead of unit64_t in helper_compute_fprf()
This allows code in helper_compute_fprf() to be reused later to
work with float128 argument too.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target/ppc/fpu_helper.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 1ccd5e6..4da991a 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -66,23 +66,21 @@ static inline int ppc_float64_get_unbiased_exp(float64 f)
     return ((f >> 52) & 0x7FF) - 1023;
 }
 
-void helper_compute_fprf(CPUPPCState *env, uint64_t arg)
+void helper_compute_fprf(CPUPPCState *env, float64 arg)
 {
-    CPU_DoubleU farg;
     int isneg;
     int fprf;
 
-    farg.ll = arg;
-    isneg = float64_is_neg(farg.d);
-    if (unlikely(float64_is_any_nan(farg.d))) {
-        if (float64_is_signaling_nan(farg.d, &env->fp_status)) {
+    isneg = float64_is_neg(arg);
+    if (unlikely(float64_is_any_nan(arg))) {
+        if (float64_is_signaling_nan(arg, &env->fp_status)) {
             /* Signaling NaN: flags are undefined */
             fprf = 0x00;
         } else {
             /* Quiet NaN */
             fprf = 0x11;
         }
-    } else if (unlikely(float64_is_infinity(farg.d))) {
+    } else if (unlikely(float64_is_infinity(arg))) {
         /* +/- infinity */
         if (isneg) {
             fprf = 0x09;
@@ -90,7 +88,7 @@ void helper_compute_fprf(CPUPPCState *env, uint64_t arg)
             fprf = 0x05;
         }
     } else {
-        if (float64_is_zero(farg.d)) {
+        if (float64_is_zero(arg)) {
             /* +/- zero */
             if (isneg) {
                 fprf = 0x12;
@@ -98,7 +96,7 @@ void helper_compute_fprf(CPUPPCState *env, uint64_t arg)
                 fprf = 0x02;
             }
         } else {
-            if (isden(farg.d)) {
+            if (isden(arg)) {
                 /* Denormalized numbers */
                 fprf = 0x10;
             } else {
-- 
2.7.4

  parent reply	other threads:[~2017-01-06  6:15 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-06  6:14 [Qemu-devel] [PATCH v1 00/14] POWER9 TCG enablements - part10 Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 01/14] target-ppc: Add xxextractuw instruction Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 02/14] target-ppc: Add xxinsertw instruction Nikunj A Dadhania
2017-01-06  7:54   ` David Gibson
2017-01-06  8:28     ` Nikunj A Dadhania
2017-01-07  1:02       ` David Gibson
2017-01-07  1:03   ` David Gibson
2017-01-06  6:14 ` Nikunj A Dadhania [this message]
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 04/14] target-ppc: Replace isden by float64_is_zero_or_denormal Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 05/14] target-ppc: Rename helper_compute_fprf to helper_compute_fprf_float64 Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 06/14] target-ppc: Add xsaddqp instructions Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 07/14] target-ppc: Add xscvdphp, xscvhpdp Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 08/14] target-ppc: Use correct precision for FPRF setting Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 09/14] target-ppc: Add xscvdpqp instruction Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 10/14] target-ppc: Add xscvqpdp instruction Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 11/14] target-ppc: Add xsxexpdp instruction Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 12/14] target-ppc: Add xsxexpqp instruction Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 13/14] target-ppc: Add xsxsigdp instruction Nikunj A Dadhania
2017-01-06  6:14 ` [Qemu-devel] [PATCH v1 14/14] target-ppc: Add xsxsigqp instructions Nikunj A Dadhania
2017-01-09  2:49 ` [Qemu-devel] [PATCH v1 00/14] POWER9 TCG enablements - part10 David Gibson
2017-01-09  6:51   ` Nikunj A Dadhania

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