Changes found in shader flutter/impeller/entity/gles/line.frag.gles on core Mali-G78:
In variant Main:
  fp16_arithmetic: 6 <- before
  fp16_arithmetic: 0 <- after
longest_path_cycles in variant Main
        arith_total arith_fma   arith_cvt   arith_sfu   load_store  varying     texture     bound       
before  0.218750    0.140625    0.218750    0.000000    0.000000    1.750000    0.500000    varying
after   0.187500    0.187500    0.187500    0.000000    0.000000    1.750000    0.500000    varying

shortest_path_cycles in variant Main
        arith_total arith_fma   arith_cvt   arith_sfu   load_store  varying     texture     bound       
before  0.140625    0.125000    0.140625    0.000000    0.000000    1.750000    0.000000    varying
after   0.171875    0.171875    0.109375    0.000000    0.000000    1.750000    0.000000    varying

total_cycles in variant Main
        arith_total arith_fma   arith_cvt   arith_sfu   load_store  varying     texture     bound       
before  0.218750    0.140625    0.218750    0.000000    0.000000    1.750000    0.500000    varying
after   0.187500    0.187500    0.187500    0.000000    0.000000    1.750000    0.500000    varying


For a full report, run:
  $ malioc --fragment --core Mali-G78 /b/s/w/ir/cache/builder/engine/src/out/ci/android_debug_unopt/gen/flutter/impeller/entity/gles/line.frag.gles

Changes found in shader flutter/impeller/entity/line.frag.vkspv on core Mali-G78:
In variant Main:
  fp16_arithmetic: 15 <- before
  fp16_arithmetic: 33 <- after
longest_path_cycles in variant Main
        arith_total arith_fma   arith_cvt   arith_sfu   load_store  varying     texture     bound       
before  0.187500    0.140625    0.187500    0.187500    0.000000    1.750000    0.500000    varying
after   0.187500    0.171875    0.156250    0.187500    0.000000    1.750000    0.500000    varying

shortest_path_cycles in variant Main
        arith_total arith_fma   arith_cvt   arith_sfu   load_store  varying     texture     bound       
before  0.187500    0.125000    0.140625    0.187500    0.000000    1.750000    0.000000    varying
after   0.187500    0.156250    0.109375    0.187500    0.000000    1.750000    0.000000    varying

total_cycles in variant Main
        arith_total arith_fma   arith_cvt   arith_sfu   load_store  varying     texture     bound       
before  0.187500    0.140625    0.187500    0.187500    0.000000    1.750000    0.500000    varying
after   0.187500    0.171875    0.156250    0.187500    0.000000    1.750000    0.500000    varying

In variant Main:
  uniform_registers_used: 6 <- before
  uniform_registers_used: 4 <- after

For a full report, run:
  $ malioc --fragment --core Mali-G78 /b/s/w/ir/cache/builder/engine/src/out/ci/android_debug_unopt/gen/flutter/impeller/entity/line.frag.vkspv

There are new shaders, shaders have been removed, or performance changes to existing shaders. The golden file must be updated after a build of android_debug_unopt using the --malioc-path flag to the flutter/tools/gn script.

$ ./flutter/impeller/tools/malioc_diff.py --before /b/s/w/ir/cache/builder/engine/src/flutter/impeller/tools/malioc.json --after /b/s/w/ir/cache/builder/engine/src/out/ci/android_debug_unopt/gen/malioc --update

You can alternately apply the diff below:
patch -p0 <<DONE
--- flutter/impeller/tools/malioc.json
+++ 
@@ -4431,16 +4431,16 @@
       "uses_late_zs_update": false,
       "variants": {
         "Main": {
-          "fp16_arithmetic": 6,
+          "fp16_arithmetic": 0,
           "has_stack_spilling": false,
           "performance": {
             "longest_path_bound_pipelines": [
               "varying"
             ],
             "longest_path_cycles": [
-              0.21875,
-              0.140625,
-              0.21875,
+              0.1875,
+              0.1875,
+              0.1875,
               0.0,
               0.0,
               1.75,
@@ -4459,9 +4459,9 @@
               "varying"
             ],
             "shortest_path_cycles": [
-              0.140625,
-              0.125,
-              0.140625,
+              0.171875,
+              0.171875,
+              0.109375,
               0.0,
               0.0,
               1.75,
@@ -4471,9 +4471,9 @@
               "varying"
             ],
             "total_cycles": [
-              0.21875,
-              0.140625,
-              0.21875,
+              0.1875,
+              0.1875,
+              0.1875,
               0.0,
               0.0,
               1.75,
@@ -8251,7 +8251,7 @@
       "uses_late_zs_update": false,
       "variants": {
         "Main": {
-          "fp16_arithmetic": 15,
+          "fp16_arithmetic": 33,
           "has_stack_spilling": false,
           "performance": {
             "longest_path_bound_pipelines": [
@@ -8259,8 +8259,8 @@
             ],
             "longest_path_cycles": [
               0.1875,
-              0.140625,
-              0.1875,
+              0.171875,
+              0.15625,
               0.1875,
               0.0,
               1.75,
@@ -8280,8 +8280,8 @@
             ],
             "shortest_path_cycles": [
               0.1875,
-              0.125,
-              0.140625,
+              0.15625,
+              0.109375,
               0.1875,
               0.0,
               1.75,
@@ -8292,8 +8292,8 @@
             ],
             "total_cycles": [
               0.1875,
-              0.140625,
-              0.1875,
+              0.171875,
+              0.15625,
               0.1875,
               0.0,
               1.75,
@@ -8302,7 +8302,7 @@
           },
           "stack_spill_bytes": 0,
           "thread_occupancy": 100,
-          "uniform_registers_used": 6,
+          "uniform_registers_used": 4,
           "work_registers_used": 18
         }
       }

DONE