diff --git a/mpn/powerpc64/gmp-mparam.h b/mpn/powerpc64/gmp-mparam.h
index bfa4604b..6cdcb661 100644
--- a/mpn/powerpc64/gmp-mparam.h
+++ b/mpn/powerpc64/gmp-mparam.h
@@ -1,21 +1,21 @@
-/* Generated by tuneup.c, 2010-05-23, gcc 4.0 */
+/* Generated by tuneup.c, 2011-12-04, gcc 4.6 */
 
 #define MUL_KARATSUBA_THRESHOLD          16
-#define MUL_TOOM3_THRESHOLD              81
-#define MUL_TOOM4_THRESHOLD             169
-#define MUL_TOOM8H_THRESHOLD            173
+#define MUL_TOOM3_THRESHOLD             101
+#define MUL_TOOM4_THRESHOLD             151
+#define MUL_TOOM8H_THRESHOLD            230
 
-#define SQR_BASECASE_THRESHOLD            4
-#define SQR_KARATSUBA_THRESHOLD          28
-#define SQR_TOOM3_THRESHOLD              97
-#define SQR_TOOM4_THRESHOLD             266
-#define SQR_TOOM8_THRESHOLD             266
+#define SQR_BASECASE_THRESHOLD           11
+#define SQR_KARATSUBA_THRESHOLD          47
+#define SQR_TOOM3_THRESHOLD             136
+#define SQR_TOOM4_THRESHOLD             136
+#define SQR_TOOM8_THRESHOLD             230
 
 #define POWM_THRESHOLD                  984
 
-#define GCD_ACCEL_THRESHOLD             387
-#define GCD_THRESHOLD                   969
-#define GCDEXT_THRESHOLD                674
+#define HGCD_THRESHOLD                   81
+#define GCD_DC_THRESHOLD                890
+#define GCDEXT_DC_THRESHOLD             978
 #define JACOBI_BASE_METHOD                1
 
 #define DIVREM_1_NORM_THRESHOLD           0  /* always */
@@ -27,50 +27,50 @@
 #define DIVREM_2_THRESHOLD                0  /* always */
 #define DIVEXACT_1_THRESHOLD              0  /* always */
 #define MODEXACT_1_ODD_THRESHOLD          0  /* always */
-#define MOD_1_1_THRESHOLD                 8
-#define MOD_1_2_THRESHOLD                 8
-#define MOD_1_3_THRESHOLD                25
-#define DIVREM_HENSEL_QR_1_THRESHOLD     31
-#define RSH_DIVREM_HENSEL_QR_1_THRESHOLD     58
+#define MOD_1_1_THRESHOLD                 7
+#define MOD_1_2_THRESHOLD                 7
+#define MOD_1_3_THRESHOLD                 7
+#define DIVREM_HENSEL_QR_1_THRESHOLD      2
+#define RSH_DIVREM_HENSEL_QR_1_THRESHOLD      3
 #define DIVREM_EUCLID_HENSEL_THRESHOLD      8
 
 #define ROOTREM_THRESHOLD                 6
 
-#define GET_STR_DC_THRESHOLD             12
+#define GET_STR_DC_THRESHOLD             11
 #define GET_STR_PRECOMPUTE_THRESHOLD     23
-#define SET_STR_DC_THRESHOLD           5510
-#define SET_STR_PRECOMPUTE_THRESHOLD  93171
+#define SET_STR_DC_THRESHOLD           6915
+#define SET_STR_PRECOMPUTE_THRESHOLD  19321
 
-#define MUL_FFT_TABLE  { 304, 672, 1600, 2304, 7168, 20480, 81920, 458752, 1310720, 5242880, 0 }
-#define MUL_FFT_MODF_THRESHOLD          272
-#define MUL_FFT_FULL_THRESHOLD         1728
+#define MUL_FFT_TABLE  { 304, 672, 1728, 2304, 7168, 20480, 81920, 196608, 1310720, 5242880, 12582912, 0 }
+#define MUL_FFT_MODF_THRESHOLD          304
+#define MUL_FFT_FULL_THRESHOLD         1856
 
-#define SQR_FFT_TABLE  { 272, 672, 1600, 2304, 7168, 20480, 81920, 458752, 1310720, 5242880, 0 }
-#define SQR_FFT_MODF_THRESHOLD          216
+#define SQR_FFT_TABLE  { 304, 672, 1600, 2304, 7168, 20480, 81920, 196608, 1310720, 5242880, 0 }
+#define SQR_FFT_MODF_THRESHOLD          232
 #define SQR_FFT_FULL_THRESHOLD         1728
 
 #define MULLOW_BASECASE_THRESHOLD         0  /* always */
-#define MULLOW_DC_THRESHOLD              47
-#define MULLOW_MUL_THRESHOLD           3114
+#define MULLOW_DC_THRESHOLD              58
+#define MULLOW_MUL_THRESHOLD           2743
 
-#define MULHIGH_BASECASE_THRESHOLD        4
-#define MULHIGH_DC_THRESHOLD             47
-#define MULHIGH_MUL_THRESHOLD          3114
+#define MULHIGH_BASECASE_THRESHOLD        0  /* always */
+#define MULHIGH_DC_THRESHOLD             59
+#define MULHIGH_MUL_THRESHOLD          2743
 
 #define MULMOD_2EXPM1_THRESHOLD          14
 
-#define FAC_UI_THRESHOLD              31169
-#define DC_DIV_QR_THRESHOLD              21
-#define DC_DIVAPPR_Q_N_THRESHOLD         52
-#define INV_DIV_QR_THRESHOLD           3031
-#define INV_DIVAPPR_Q_N_THRESHOLD        52
-#define DC_DIV_Q_THRESHOLD               83
-#define INV_DIV_Q_THRESHOLD            2492
-#define DC_DIVAPPR_Q_THRESHOLD           69
-#define INV_DIVAPPR_Q_THRESHOLD        5113
-#define DC_BDIV_QR_THRESHOLD             48
-#define DC_BDIV_Q_THRESHOLD              21
-/* Tuneup completed successfully, took 865 seconds */
+#define FAC_UI_THRESHOLD              28222
+#define DC_DIV_QR_THRESHOLD              17
+#define DC_DIVAPPR_Q_N_THRESHOLD         48
+#define INV_DIV_QR_THRESHOLD           2350
+#define INV_DIVAPPR_Q_N_THRESHOLD        48
+#define DC_DIV_Q_THRESHOLD               95
+#define INV_DIV_Q_THRESHOLD            2350
+#define DC_DIVAPPR_Q_THRESHOLD           65
+#define INV_DIVAPPR_Q_THRESHOLD        5363
+#define DC_BDIV_QR_THRESHOLD             76
+#define DC_BDIV_Q_THRESHOLD              22
+/* Tuneup completed successfully, took 391 seconds */
 
 #define MUL_FFT_TABLE2 {{1, 4}, {242, 5}, {485, 6}, {519, 5}, {555, 6}, {1238, 7}, {1294, 6}, {1352, 7}, {2191, 8}, {2340, 7}, {2445, 8}, {5478, 9}, {5721, 8}, {6518, 9}, {6661, 8}, {6957, 9}, {7756, 8}, {8100, 9}, {10980, 10}, {11467, 9}, {13939, 10}, {15535, 9}, {16944, 10}, {19722, 9}, {20154, 10}, {23970, 9}, {24495, 10}, {27898, 11}, {31091, 10}, {40326, 11}, {47962, 10}, {52305, 11}, {53451, 12}, {63570, 10}, {69326, 11}, {80681, 10}, {82448, 11}, {98051, 12}, {127165, 11}, {164920, 12}, {196129, 13}, {254354, 12}, {259924, 10}, {392279, 11}, {719463, 9}, {735218, 10}, {751318, 11}, {784582, 12}, {MP_SIZE_T_MAX,0}}