Constant-propogate 0+x and x+0 after bounds

After     | File Name                                    | Before    || Change    | % Change
--------------------------------------------------------------------------------------------
21m22.67s | Total                                        | 21m28.24s || -0m05.56s | -0.43%
--------------------------------------------------------------------------------------------
4m09.95s  | PushButtonSynthesis.vo                       | 4m14.76s  || -0m04.81s | -1.88%
3m07.95s  | p384_32.c                                    | 3m11.17s  || -0m03.21s | -1.68%
2m06.43s  | Rewriter.vo                                  | 2m06.15s  || +0m00.28s | +0.22%
1m55.83s  | RewriterWf2.vo                               | 1m56.15s  || -0m00.32s | -0.27%
1m52.36s  | RewriterRulesGood.vo                         | 1m52.34s  || +0m00.01s | +0.01%
1m46.52s  | RewriterRulesInterpGood.vo                   | 1m45.70s  || +0m00.82s | +0.77%
0m46.56s  | RewriterInterpProofs1.vo                     | 0m46.72s  || -0m00.15s | -0.34%
0m45.04s  | ExtractionHaskell/word_by_word_montgomery    | 0m45.33s  || -0m00.28s | -0.63%
0m39.17s  | p521_32.c                                    | 0m39.07s  || +0m00.10s | +0.25%
0m32.40s  | p521_64.c                                    | 0m32.64s  || -0m00.24s | -0.73%
0m31.13s  | ExtractionHaskell/unsaturated_solinas        | 0m30.88s  || +0m00.25s | +0.80%
0m24.20s  | ExtractionHaskell/saturated_solinas          | 0m24.27s  || -0m00.07s | -0.28%
0m23.72s  | RewriterWf1.vo                               | 0m23.42s  || +0m00.29s | +1.28%
0m17.52s  | ExtractionOCaml/word_by_word_montgomery      | 0m17.10s  || +0m00.41s | +2.45%
0m13.39s  | secp256k1_32.c                               | 0m13.29s  || +0m00.10s | +0.75%
0m13.08s  | p256_32.c                                    | 0m13.26s  || -0m00.17s | -1.35%
0m11.49s  | p484_64.c                                    | 0m11.18s  || +0m00.31s | +2.77%
0m10.68s  | ExtractionOCaml/unsaturated_solinas          | 0m10.64s  || +0m00.03s | +0.37%
0m10.11s  | ExtractionOCaml/word_by_word_montgomery.ml   | 0m10.10s  || +0m00.00s | +0.09%
0m07.96s  | ExtractionOCaml/saturated_solinas            | 0m07.95s  || +0m00.00s | +0.12%
0m06.81s  | ExtractionOCaml/unsaturated_solinas.ml       | 0m06.76s  || +0m00.04s | +0.73%
0m06.30s  | ExtractionHaskell/word_by_word_montgomery.hs | 0m06.26s  || +0m00.04s | +0.63%
0m06.07s  | p224_32.c                                    | 0m05.94s  || +0m00.12s | +2.18%
0m06.06s  | BoundsPipeline.vo                            | 0m06.08s  || -0m00.02s | -0.32%
0m05.46s  | p384_64.c                                    | 0m05.30s  || +0m00.16s | +3.01%
0m05.28s  | ExtractionOCaml/saturated_solinas.ml         | 0m05.18s  || +0m00.10s | +1.93%
0m04.97s  | ExtractionHaskell/unsaturated_solinas.hs     | 0m04.99s  || -0m00.02s | -0.40%
0m04.13s  | ExtractionHaskell/saturated_solinas.hs       | 0m04.10s  || +0m00.03s | +0.73%
0m02.34s  | curve25519_32.c                              | 0m02.21s  || +0m00.12s | +5.88%
0m01.59s  | curve25519_64.c                              | 0m01.47s  || +0m00.12s | +8.16%
0m01.46s  | CLI.vo                                       | 0m01.48s  || -0m00.02s | -1.35%
0m01.15s  | secp256k1_64.c                               | 0m01.03s  || +0m00.11s | +11.65%
0m01.14s  | RewriterProofs.vo                            | 0m01.13s  || +0m00.01s | +0.88%
0m01.14s  | StandaloneHaskellMain.vo                     | 0m01.09s  || +0m00.04s | +4.58%
0m01.14s  | StandaloneOCamlMain.vo                       | 0m01.12s  || +0m00.01s | +1.78%
0m01.09s  | p256_64.c                                    | 0m00.98s  || +0m00.11s | +11.22%
0m01.06s  | p224_64.c                                    | 0m01.00s  || +0m00.06s | +6.00%

1 files changed, 86 insertions, 100 deletions

diff --git a/p256_32.c b/p256_32.c
index fe0bf4cbc..faaa0b04e 100644
--- a/p256_32.c
+++ b/p256_32.c
@@ -3072,93 +3072,86 @@ static void fiat_p256_to_bytes(uint8_t out1[32], const uint32_t arg1[8]) {
   uint8_t x13 = (uint8_t)(x11 >> 8);
   uint8_t x14 = (uint8_t)(x11 & UINT8_C(0xff));
   uint8_t x15 = (uint8_t)(x13 & UINT8_C(0xff));
-  uint32_t x16 = (0x0 + x7);
-  uint32_t x17 = (x16 >> 8);
-  uint8_t x18 = (uint8_t)(x16 & UINT8_C(0xff));
-  uint32_t x19 = (x17 >> 8);
-  uint8_t x20 = (uint8_t)(x17 & UINT8_C(0xff));
-  uint8_t x21 = (uint8_t)(x19 >> 8);
-  uint8_t x22 = (uint8_t)(x19 & UINT8_C(0xff));
-  uint8_t x23 = (uint8_t)(x21 & UINT8_C(0xff));
-  uint32_t x24 = (0x0 + x6);
-  uint32_t x25 = (x24 >> 8);
-  uint8_t x26 = (uint8_t)(x24 & UINT8_C(0xff));
-  uint32_t x27 = (x25 >> 8);
+  uint32_t x16 = (x7 >> 8);
+  uint8_t x17 = (uint8_t)(x7 & UINT8_C(0xff));
+  uint32_t x18 = (x16 >> 8);
+  uint8_t x19 = (uint8_t)(x16 & UINT8_C(0xff));
+  uint8_t x20 = (uint8_t)(x18 >> 8);
+  uint8_t x21 = (uint8_t)(x18 & UINT8_C(0xff));
+  uint8_t x22 = (uint8_t)(x20 & UINT8_C(0xff));
+  uint32_t x23 = (x6 >> 8);
+  uint8_t x24 = (uint8_t)(x6 & UINT8_C(0xff));
+  uint32_t x25 = (x23 >> 8);
+  uint8_t x26 = (uint8_t)(x23 & UINT8_C(0xff));
+  uint8_t x27 = (uint8_t)(x25 >> 8);
   uint8_t x28 = (uint8_t)(x25 & UINT8_C(0xff));
-  uint8_t x29 = (uint8_t)(x27 >> 8);
-  uint8_t x30 = (uint8_t)(x27 & UINT8_C(0xff));
-  uint8_t x31 = (uint8_t)(x29 & UINT8_C(0xff));
-  uint32_t x32 = (0x0 + x5);
-  uint32_t x33 = (x32 >> 8);
-  uint8_t x34 = (uint8_t)(x32 & UINT8_C(0xff));
-  uint32_t x35 = (x33 >> 8);
-  uint8_t x36 = (uint8_t)(x33 & UINT8_C(0xff));
-  uint8_t x37 = (uint8_t)(x35 >> 8);
-  uint8_t x38 = (uint8_t)(x35 & UINT8_C(0xff));
-  uint8_t x39 = (uint8_t)(x37 & UINT8_C(0xff));
-  uint32_t x40 = (0x0 + x4);
-  uint32_t x41 = (x40 >> 8);
-  uint8_t x42 = (uint8_t)(x40 & UINT8_C(0xff));
-  uint32_t x43 = (x41 >> 8);
-  uint8_t x44 = (uint8_t)(x41 & UINT8_C(0xff));
-  uint8_t x45 = (uint8_t)(x43 >> 8);
-  uint8_t x46 = (uint8_t)(x43 & UINT8_C(0xff));
-  uint8_t x47 = (uint8_t)(x45 & UINT8_C(0xff));
-  uint32_t x48 = (0x0 + x3);
-  uint32_t x49 = (x48 >> 8);
+  uint8_t x29 = (uint8_t)(x27 & UINT8_C(0xff));
+  uint32_t x30 = (x5 >> 8);
+  uint8_t x31 = (uint8_t)(x5 & UINT8_C(0xff));
+  uint32_t x32 = (x30 >> 8);
+  uint8_t x33 = (uint8_t)(x30 & UINT8_C(0xff));
+  uint8_t x34 = (uint8_t)(x32 >> 8);
+  uint8_t x35 = (uint8_t)(x32 & UINT8_C(0xff));
+  uint8_t x36 = (uint8_t)(x34 & UINT8_C(0xff));
+  uint32_t x37 = (x4 >> 8);
+  uint8_t x38 = (uint8_t)(x4 & UINT8_C(0xff));
+  uint32_t x39 = (x37 >> 8);
+  uint8_t x40 = (uint8_t)(x37 & UINT8_C(0xff));
+  uint8_t x41 = (uint8_t)(x39 >> 8);
+  uint8_t x42 = (uint8_t)(x39 & UINT8_C(0xff));
+  uint8_t x43 = (uint8_t)(x41 & UINT8_C(0xff));
+  uint32_t x44 = (x3 >> 8);
+  uint8_t x45 = (uint8_t)(x3 & UINT8_C(0xff));
+  uint32_t x46 = (x44 >> 8);
+  uint8_t x47 = (uint8_t)(x44 & UINT8_C(0xff));
+  uint8_t x48 = (uint8_t)(x46 >> 8);
+  uint8_t x49 = (uint8_t)(x46 & UINT8_C(0xff));
   uint8_t x50 = (uint8_t)(x48 & UINT8_C(0xff));
-  uint32_t x51 = (x49 >> 8);
-  uint8_t x52 = (uint8_t)(x49 & UINT8_C(0xff));
-  uint8_t x53 = (uint8_t)(x51 >> 8);
+  uint32_t x51 = (x2 >> 8);
+  uint8_t x52 = (uint8_t)(x2 & UINT8_C(0xff));
+  uint32_t x53 = (x51 >> 8);
   uint8_t x54 = (uint8_t)(x51 & UINT8_C(0xff));
-  uint8_t x55 = (uint8_t)(x53 & UINT8_C(0xff));
-  uint32_t x56 = (0x0 + x2);
-  uint32_t x57 = (x56 >> 8);
-  uint8_t x58 = (uint8_t)(x56 & UINT8_C(0xff));
-  uint32_t x59 = (x57 >> 8);
-  uint8_t x60 = (uint8_t)(x57 & UINT8_C(0xff));
-  uint8_t x61 = (uint8_t)(x59 >> 8);
-  uint8_t x62 = (uint8_t)(x59 & UINT8_C(0xff));
-  uint8_t x63 = (uint8_t)(x61 & UINT8_C(0xff));
-  uint32_t x64 = (0x0 + x1);
-  uint32_t x65 = (x64 >> 8);
-  uint8_t x66 = (uint8_t)(x64 & UINT8_C(0xff));
-  uint32_t x67 = (x65 >> 8);
-  uint8_t x68 = (uint8_t)(x65 & UINT8_C(0xff));
-  uint8_t x69 = (uint8_t)(x67 >> 8);
-  uint8_t x70 = (uint8_t)(x67 & UINT8_C(0xff));
+  uint8_t x55 = (uint8_t)(x53 >> 8);
+  uint8_t x56 = (uint8_t)(x53 & UINT8_C(0xff));
+  uint8_t x57 = (uint8_t)(x55 & UINT8_C(0xff));
+  uint32_t x58 = (x1 >> 8);
+  uint8_t x59 = (uint8_t)(x1 & UINT8_C(0xff));
+  uint32_t x60 = (x58 >> 8);
+  uint8_t x61 = (uint8_t)(x58 & UINT8_C(0xff));
+  uint8_t x62 = (uint8_t)(x60 >> 8);
+  uint8_t x63 = (uint8_t)(x60 & UINT8_C(0xff));
   out1[0] = x10;
   out1[1] = x12;
   out1[2] = x14;
   out1[3] = x15;
-  out1[4] = x18;
-  out1[5] = x20;
-  out1[6] = x22;
-  out1[7] = x23;
-  out1[8] = x26;
-  out1[9] = x28;
-  out1[10] = x30;
-  out1[11] = x31;
-  out1[12] = x34;
-  out1[13] = x36;
-  out1[14] = x38;
-  out1[15] = x39;
-  out1[16] = x42;
-  out1[17] = x44;
-  out1[18] = x46;
-  out1[19] = x47;
-  out1[20] = x50;
-  out1[21] = x52;
-  out1[22] = x54;
-  out1[23] = x55;
-  out1[24] = x58;
-  out1[25] = x60;
-  out1[26] = x62;
-  out1[27] = x63;
-  out1[28] = x66;
-  out1[29] = x68;
-  out1[30] = x70;
-  out1[31] = x69;
+  out1[4] = x17;
+  out1[5] = x19;
+  out1[6] = x21;
+  out1[7] = x22;
+  out1[8] = x24;
+  out1[9] = x26;
+  out1[10] = x28;
+  out1[11] = x29;
+  out1[12] = x31;
+  out1[13] = x33;
+  out1[14] = x35;
+  out1[15] = x36;
+  out1[16] = x38;
+  out1[17] = x40;
+  out1[18] = x42;
+  out1[19] = x43;
+  out1[20] = x45;
+  out1[21] = x47;
+  out1[22] = x49;
+  out1[23] = x50;
+  out1[24] = x52;
+  out1[25] = x54;
+  out1[26] = x56;
+  out1[27] = x57;
+  out1[28] = x59;
+  out1[29] = x61;
+  out1[30] = x63;
+  out1[31] = x62;
 }
 
 /*
@@ -3209,26 +3202,19 @@ static void fiat_p256_from_bytes(uint32_t out1[8], const uint8_t arg1[32]) {
   uint32_t x39 = (x20 + (x19 + (x18 + x17)));
   uint32_t x40 = (x24 + (x23 + (x22 + x21)));
   uint32_t x41 = (x28 + (x27 + (x26 + x25)));
-  uint32_t x42 = (0x0 + x41);
-  uint32_t x43 = (x42 & UINT32_C(0xffffffff));
-  uint32_t x44 = (0x0 + x40);
-  uint32_t x45 = (x44 & UINT32_C(0xffffffff));
-  uint32_t x46 = (0x0 + x39);
-  uint32_t x47 = (x46 & UINT32_C(0xffffffff));
-  uint32_t x48 = (0x0 + x38);
-  uint32_t x49 = (x48 & UINT32_C(0xffffffff));
-  uint32_t x50 = (0x0 + x37);
-  uint32_t x51 = (x50 & UINT32_C(0xffffffff));
-  uint32_t x52 = (0x0 + x36);
-  uint32_t x53 = (x52 & UINT32_C(0xffffffff));
-  uint32_t x54 = (0x0 + x35);
+  uint32_t x42 = (x41 & UINT32_C(0xffffffff));
+  uint32_t x43 = (x40 & UINT32_C(0xffffffff));
+  uint32_t x44 = (x39 & UINT32_C(0xffffffff));
+  uint32_t x45 = (x38 & UINT32_C(0xffffffff));
+  uint32_t x46 = (x37 & UINT32_C(0xffffffff));
+  uint32_t x47 = (x36 & UINT32_C(0xffffffff));
   out1[0] = x34;
-  out1[1] = x43;
-  out1[2] = x45;
-  out1[3] = x47;
-  out1[4] = x49;
-  out1[5] = x51;
-  out1[6] = x53;
-  out1[7] = x54;
+  out1[1] = x42;
+  out1[2] = x43;
+  out1[3] = x44;
+  out1[4] = x45;
+  out1[5] = x46;
+  out1[6] = x47;
+  out1[7] = x35;
 }