jpeg: simplify 'x = x op ...' to 'x op= ...'

Change-Id: Id431969e42f0d9bd28bbf163d10378a6de2416f2
Reviewed-on: https://go-review.googlesource.com/c/141999
Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Iskander Sharipov <iskander.sharipov@intel.com>

diff --git a/src/image/jpeg/fdct.go b/src/image/jpeg/fdct.go
index 3f8be4e32608e2444bf0592588c61b72aef19998..201a5abd0bab41355b3b83e6c37d7d67b2f20169 100644 (file)
--- a/src/image/jpeg/fdct.go
+++ b/src/image/jpeg/fdct.go
@@ -123,14 +123,14 @@ func fdct(b *block) {
                tmp13 = tmp1 + tmp3
                z1 = (tmp12 + tmp13) * fix_1_175875602
                z1 += 1 << (constBits - pass1Bits - 1)
-               tmp0 = tmp0 * fix_1_501321110
-               tmp1 = tmp1 * fix_3_072711026
-               tmp2 = tmp2 * fix_2_053119869
-               tmp3 = tmp3 * fix_0_298631336
-               tmp10 = tmp10 * -fix_0_899976223
-               tmp11 = tmp11 * -fix_2_562915447
-               tmp12 = tmp12 * -fix_0_390180644
-               tmp13 = tmp13 * -fix_1_961570560
+               tmp0 *= fix_1_501321110
+               tmp1 *= fix_3_072711026
+               tmp2 *= fix_2_053119869
+               tmp3 *= fix_0_298631336
+               tmp10 *= -fix_0_899976223
+               tmp11 *= -fix_2_562915447
+               tmp12 *= -fix_0_390180644
+               tmp13 *= -fix_1_961570560
 
                tmp12 += z1
                tmp13 += z1
@@ -171,14 +171,14 @@ func fdct(b *block) {
                tmp13 = tmp1 + tmp3
                z1 = (tmp12 + tmp13) * fix_1_175875602
                z1 += 1 << (constBits + pass1Bits - 1)
-               tmp0 = tmp0 * fix_1_501321110
-               tmp1 = tmp1 * fix_3_072711026
-               tmp2 = tmp2 * fix_2_053119869
-               tmp3 = tmp3 * fix_0_298631336
-               tmp10 = tmp10 * -fix_0_899976223
-               tmp11 = tmp11 * -fix_2_562915447
-               tmp12 = tmp12 * -fix_0_390180644
-               tmp13 = tmp13 * -fix_1_961570560
+               tmp0 *= fix_1_501321110
+               tmp1 *= fix_3_072711026
+               tmp2 *= fix_2_053119869
+               tmp3 *= fix_0_298631336
+               tmp10 *= -fix_0_899976223
+               tmp11 *= -fix_2_562915447
+               tmp12 *= -fix_0_390180644
+               tmp13 *= -fix_1_961570560
 
                tmp12 += z1
                tmp13 += z1