--- default.opts	2018-12-22 13:26:34.948320821 -0500
+++ default.opts	2018-12-22 13:26:42.907454480 -0500
@@ -24, +24, @@ 
-  -march=                     		x86-64
+  -march=                     		ivybridge
@@ -26, +26, @@ 
-  -mavx                       		[disabled]
+  -mavx                       		[enabled]
@@ -53, +53, @@ 
-  -mcx16                      		[disabled]
+  -mcx16                      		[enabled]
@@ -56, +56, @@ 
-  -mf16c                      		[disabled]
+  -mf16c                      		[enabled]
@@ -64, +64, @@ 
-  -mfsgsbase                  		[disabled]
+  -mfsgsbase                  		[enabled]
@@ -100, +100, @@ 
-  -mno-sse4                   		[enabled]
+  -mno-sse4                   		[disabled]
@@ -106, +106, @@ 
-  -mpclmul                    		[disabled]
+  -mpclmul                    		[enabled]
@@ -109, +109, @@ 
-  -mpopcnt                    		[disabled]
+  -mpopcnt                    		[enabled]
@@ -116, +116, @@ 
-  -mrdrnd                     		[disabled]
+  -mrdrnd                     		[enabled]
@@ -125, +125, @@ 
-  -msahf                      		[disabled]
+  -msahf                      		[enabled]
@@ -133,4 +133,4 @@ 
-  -msse3                      		[disabled]
-  -msse4                      		[disabled]
-  -msse4.1                    		[disabled]
-  -msse4.2                    		[disabled]
+  -msse3                      		[enabled]
+  -msse4                      		[enabled]
+  -msse4.1                    		[enabled]
+  -msse4.2                    		[enabled]
@@ -140, +140, @@ 
-  -mssse3                     		[disabled]
+  -mssse3                     		[enabled]
@@ -150, +150, @@ 
-  -mtune=                     		generic
+  -mtune=                     		ivybridge
@@ -157, +157, @@ 
-  -mxsave                     		[disabled]
+  -mxsave                     		[enabled]
@@ -159, +159, @@ 
-  -mxsaveopt                  		[disabled]
+  -mxsaveopt                  		[enabled]