diff --git a/unittests/InstructionCountCI/FlagM/Primary.json b/unittests/InstructionCountCI/FlagM/Primary.json
index 838379305..f47c708e5 100644
--- a/unittests/InstructionCountCI/FlagM/Primary.json
+++ b/unittests/InstructionCountCI/FlagM/Primary.json
@@ -1861,7 +1861,7 @@
       "Comment": "0x69",
       "ExpectedArm64ASM": [
         "mov w20, #0x101",
-        "mul x21, x7, x20",
+        "smull x21, w7, w20",
         "asr x21, x21, #32",
         "mul w4, w7, w20",
         "sbfx x20, x4, #31, #1",
@@ -1900,7 +1900,7 @@
       "Comment": "0x6b",
       "ExpectedArm64ASM": [
         "mov w20, #0x3",
-        "mul x21, x7, x20",
+        "smull x21, w7, w20",
         "asr x21, x21, #32",
         "mul w4, w7, w20",
         "sbfx x20, x4, #31, #1",
diff --git a/unittests/InstructionCountCI/FlagM/Secondary.json b/unittests/InstructionCountCI/FlagM/Secondary.json
index b3df7de61..812370f15 100644
--- a/unittests/InstructionCountCI/FlagM/Secondary.json
+++ b/unittests/InstructionCountCI/FlagM/Secondary.json
@@ -1006,7 +1006,7 @@
       "ExpectedInstructionCount": 6,
       "Comment": "0x0f 0xaf",
       "ExpectedArm64ASM": [
-        "mul x20, x4, x7",
+        "smull x20, w4, w7",
         "asr x20, x20, #32",
         "mul w4, w4, w7",
         "sbfx x21, x4, #31, #1",
diff --git a/unittests/InstructionCountCI/Primary.json b/unittests/InstructionCountCI/Primary.json
index 6235801b2..03bc0f929 100644
--- a/unittests/InstructionCountCI/Primary.json
+++ b/unittests/InstructionCountCI/Primary.json
@@ -2091,7 +2091,7 @@
       "Comment": "0x69",
       "ExpectedArm64ASM": [
         "mov w20, #0x101",
-        "mul x21, x7, x20",
+        "smull x21, w7, w20",
         "asr x21, x21, #32",
         "mul w4, w7, w20",
         "sbfx x20, x4, #31, #1",
@@ -2154,7 +2154,7 @@
       "Comment": "0x6b",
       "ExpectedArm64ASM": [
         "mov w20, #0x3",
-        "mul x21, x7, x20",
+        "smull x21, w7, w20",
         "asr x21, x21, #32",
         "mul w4, w7, w20",
         "sbfx x20, x4, #31, #1",
diff --git a/unittests/InstructionCountCI/Secondary.json b/unittests/InstructionCountCI/Secondary.json
index 13a4c27eb..2a61a0a08 100644
--- a/unittests/InstructionCountCI/Secondary.json
+++ b/unittests/InstructionCountCI/Secondary.json
@@ -1867,7 +1867,7 @@
       "ExpectedInstructionCount": 6,
       "Comment": "0x0f 0xaf",
       "ExpectedArm64ASM": [
-        "mul x20, x4, x7",
+        "smull x20, w4, w7",
         "asr x20, x20, #32",
         "mul w4, w4, w7",
         "sbfx x21, x4, #31, #1",