From 603fcccece43303c623df2561f85ab2baba95e5f Mon Sep 17 00:00:00 2001
From: j_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 28 Oct 2007 12:54:53 +0000
Subject: Make Alpha and PowerPC targets use shared helpers  for clz, clo, ctz,
 cto and ctpop.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3466 c046a42c-6fe2-441c-8c8c-71466251a162
---
 target-alpha/op_helper.c | 77 +++---------------------------------------------
 1 file changed, 4 insertions(+), 73 deletions(-)

(limited to 'target-alpha/op_helper.c')

diff --git a/target-alpha/op_helper.c b/target-alpha/op_helper.c
index f9390c8..ae8470b 100644
--- a/target-alpha/op_helper.c
+++ b/target-alpha/op_helper.c
@@ -19,6 +19,7 @@
  */
 
 #include "exec.h"
+#include "host-utils.h"
 #include "softfloat.h"
 
 #include "op_helper.h"
@@ -211,87 +212,17 @@ void helper_mulqv ()
 
 void helper_ctpop (void)
 {
-    int n;
-
-    for (n = 0; T0 != 0; n++)
-        T0 = T0 ^ (T0 - 1);
-    T0 = n;
+    T0 = ctpop64(T0);
 }
 
 void helper_ctlz (void)
 {
-    uint32_t op32;
-    int n;
-
-    n = 0;
-    if (!(T0 & 0xFFFFFFFF00000000ULL)) {
-        n += 32;
-        T0 <<= 32;
-    }
-    /* Make it easier for 32 bits hosts */
-    op32 = T0 >> 32;
-    if (!(op32 & 0xFFFF0000UL)) {
-        n += 16;
-        op32 <<= 16;
-    }
-    if (!(op32 & 0xFF000000UL)) {
-        n += 8;
-        op32 <<= 8;
-    }
-    if (!(op32 & 0xF0000000UL)) {
-        n += 4;
-        op32 <<= 4;
-    }
-    if (!(op32 & 0xC0000000UL)) {
-        n += 2;
-        op32 <<= 2;
-    }
-    if (!(op32 & 0x80000000UL)) {
-        n++;
-        op32 <<= 1;
-    }
-    if (!(op32 & 0x80000000UL)) {
-        n++;
-    }
-    T0 = n;
+    T0 = clz64(T0);
 }
 
 void helper_cttz (void)
 {
-    uint32_t op32;
-    int n;
-
-    n = 0;
-    if (!(T0 & 0x00000000FFFFFFFFULL)) {
-        n += 32;
-        T0 >>= 32;
-    }
-    /* Make it easier for 32 bits hosts */
-    op32 = T0;
-    if (!(op32 & 0x0000FFFFUL)) {
-        n += 16;
-        op32 >>= 16;
-    }
-    if (!(op32 & 0x000000FFUL)) {
-        n += 8;
-        op32 >>= 8;
-    }
-    if (!(op32 & 0x0000000FUL)) {
-        n += 4;
-        op32 >>= 4;
-    }
-    if (!(op32 & 0x00000003UL)) {
-        n += 2;
-        op32 >>= 2;
-    }
-    if (!(op32 & 0x00000001UL)) {
-        n++;
-        op32 >>= 1;
-    }
-    if (!(op32 & 0x00000001UL)) {
-        n++;
-    }
-    T0 = n;
+    T0 = ctz64(T0);
 }
 
 static always_inline uint64_t byte_zap (uint64_t op, uint8_t mskb)
-- 
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