commit 9112631c1f5a0eea3ad90984da5b3a913d8e5caa
author David Benjamin <davidben@google.com> Tue Dec 26 18:16:10 2017 -0500
committer Adam Langley <agl@google.com> Mon Jan 08 19:51:03 2018 +0000
tree 2ae1e73e3b17169ae4071ababc5cebfe3e4552e8
parent 3ab6ad6abd1b30a6d5902e55a3e3a89a9b1efc7a

Remove ftmp* comments from P-256 addition code.

These are remnants of the old code which had a bunch of ftmp variables.

Change-Id: Id14cf414cb67ff08e240970767f7a5a58e883ce4
Reviewed-on: https://boringssl-review.googlesource.com/24689
Reviewed-by: Adam Langley <agl@google.com>

third_party/fiat/p256.c

diff --git a/third_party/fiat/p256.c b/third_party/fiat/p256.c
index 9c7de35..fa17f99 100644
--- a/third_party/fiat/p256.c
+++ b/third_party/fiat/p256.c
@@ -1069,10 +1069,10 @@
 
   fe u1, s1, two_z1z2;
   if (!mixed) {
-    // ftmp2 = z2z2 = z2**2
+    // z2z2 = z2**2
     fe z2z2; fe_sqr(z2z2, z2);
 
-    // u1 = ftmp3 = x1*z2z2
+    // u1 = x1*z2z2
     fe_mul(u1, x1, z2z2);
 
     // two_z1z2 = (z1 + z2)**2 - (z1z1 + z2z2) = 2z1z2
@@ -1081,24 +1081,24 @@
     fe_sub(two_z1z2, two_z1z2, z1z1);
     fe_sub(two_z1z2, two_z1z2, z2z2);
 
-    // s1 = ftmp2 = y1 * z2**3
+    // s1 = y1 * z2**3
     fe_mul(s1, z2, z2z2);
     fe_mul(s1, s1, y1);
   } else {
     // We'll assume z2 = 1 (special case z2 = 0 is handled later).
 
-    // u1 = ftmp3 = x1*z2z2
+    // u1 = x1*z2z2
     fe_copy(u1, x1);
     // two_z1z2 = 2z1z2
     fe_add(two_z1z2, z1, z1);
-    // s1 = ftmp2 = y1 * z2**3
+    // s1 = y1 * z2**3
     fe_copy(s1, y1);
   }
 
   // u2 = x2*z1z1
   fe u2; fe_mul(u2, x2, z1z1);
 
-  // h = ftmp4 = u2 - u1
+  // h = u2 - u1
   fe h; fe_sub(h, u2, u1);
 
   limb_t xneq = fe_nz(h);
@@ -1109,7 +1109,7 @@
   // z1z1z1 = z1 * z1z1
   fe z1z1z1; fe_mul(z1z1z1, z1, z1z1);
 
-  // s2 = tmp = y2 * z1**3
+  // s2 = y2 * z1**3
   fe s2; fe_mul(s2, y2, z1z1z1);
 
   // r = (s2 - s1)*2
@@ -1129,10 +1129,10 @@
   fe_add(i, h, h);
   fe_sqr(i, i);
 
-  // J = ftmp2 = h * I
+  // J = h * I
   fe j; fe_mul(j, h, i);
 
-  // V = ftmp4 = U1 * I
+  // V = U1 * I
   fe v; fe_mul(v, u1, i);
 
   // x_out = r**2 - J - 2V