diff --git a/llvm/test/CodeGen/LoongArch/ir-instruction/mul.ll b/llvm/test/CodeGen/LoongArch/ir-instruction/mul.ll
--- a/llvm/test/CodeGen/LoongArch/ir-instruction/mul.ll
+++ b/llvm/test/CodeGen/LoongArch/ir-instruction/mul.ll
@@ -365,6 +365,23 @@
   ret i32 %b
 }
 
+define signext i32 @mul_i32_27(i32 %a) {
+; LA32-LABEL: mul_i32_27:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a1, $zero, 27
+; LA32-NEXT:    mul.w $a0, $a0, $a1
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i32_27:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 27
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    addi.w $a0, $a0, 0
+; LA64-NEXT:    ret
+  %b = mul i32 %a, 27
+  ret i32 %b
+}
+
 define signext i32 @mul_i32_35(i32 %a) {
 ; LA32-LABEL: mul_i32_35:
 ; LA32:       # %bb.0:
@@ -413,6 +430,23 @@
   ret i32 %b
 }
 
+define signext i32 @mul_i32_45(i32 %a) {
+; LA32-LABEL: mul_i32_45:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a1, $zero, 45
+; LA32-NEXT:    mul.w $a0, $a0, $a1
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i32_45:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 45
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    addi.w $a0, $a0, 0
+; LA64-NEXT:    ret
+  %b = mul i32 %a, 45
+  ret i32 %b
+}
+
 define signext i32 @mul_i32_49(i32 %a) {
 ; LA32-LABEL: mul_i32_49:
 ; LA32:       # %bb.0:
@@ -429,6 +463,23 @@
   ret i32 %b
 }
 
+define signext i32 @mul_i32_51(i32 %a) {
+; LA32-LABEL: mul_i32_51:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a1, $zero, 51
+; LA32-NEXT:    mul.w $a0, $a0, $a1
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i32_51:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 51
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    addi.w $a0, $a0, 0
+; LA64-NEXT:    ret
+  %b = mul i32 %a, 51
+  ret i32 %b
+}
+
 define signext i32 @mul_i32_69(i32 %a) {
 ; LA32-LABEL: mul_i32_69:
 ; LA32:       # %bb.0:
@@ -477,6 +528,23 @@
   ret i32 %b
 }
 
+define signext i32 @mul_i32_85(i32 %a) {
+; LA32-LABEL: mul_i32_85:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a1, $zero, 85
+; LA32-NEXT:    mul.w $a0, $a0, $a1
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i32_85:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 85
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    addi.w $a0, $a0, 0
+; LA64-NEXT:    ret
+  %b = mul i32 %a, 85
+  ret i32 %b
+}
+
 define signext i32 @mul_i32_137(i32 %a) {
 ; LA32-LABEL: mul_i32_137:
 ; LA32:       # %bb.0:
@@ -509,6 +577,23 @@
   ret i32 %b
 }
 
+define signext i32 @mul_i32_153(i32 %a) {
+; LA32-LABEL: mul_i32_153:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a1, $zero, 153
+; LA32-NEXT:    mul.w $a0, $a0, $a1
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i32_153:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 153
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    addi.w $a0, $a0, 0
+; LA64-NEXT:    ret
+  %b = mul i32 %a, 153
+  ret i32 %b
+}
+
 define signext i32 @mul_i32_273(i32 %a) {
 ; LA32-LABEL: mul_i32_273:
 ; LA32:       # %bb.0:
@@ -525,6 +610,23 @@
   ret i32 %b
 }
 
+define signext i32 @mul_i32_289(i32 %a) {
+; LA32-LABEL: mul_i32_289:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a1, $zero, 289
+; LA32-NEXT:    mul.w $a0, $a0, $a1
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i32_289:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 289
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    addi.w $a0, $a0, 0
+; LA64-NEXT:    ret
+  %b = mul i32 %a, 289
+  ret i32 %b
+}
+
 define i64 @mul_i64_11(i64 %a) {
 ; LA32-LABEL: mul_i64_11:
 ; LA32:       # %bb.0:
@@ -620,6 +722,25 @@
   ret i64 %b
 }
 
+define i64 @mul_i64_27(i64 %a) {
+; LA32-LABEL: mul_i64_27:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a2, $zero, 27
+; LA32-NEXT:    mul.w $a1, $a1, $a2
+; LA32-NEXT:    mulh.wu $a3, $a0, $a2
+; LA32-NEXT:    add.w $a1, $a3, $a1
+; LA32-NEXT:    mul.w $a0, $a0, $a2
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i64_27:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 27
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    ret
+  %b = mul i64 %a, 27
+  ret i64 %b
+}
+
 define i64 @mul_i64_35(i64 %a) {
 ; LA32-LABEL: mul_i64_35:
 ; LA32:       # %bb.0:
@@ -677,6 +798,25 @@
   ret i64 %b
 }
 
+define i64 @mul_i64_45(i64 %a) {
+; LA32-LABEL: mul_i64_45:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a2, $zero, 45
+; LA32-NEXT:    mul.w $a1, $a1, $a2
+; LA32-NEXT:    mulh.wu $a3, $a0, $a2
+; LA32-NEXT:    add.w $a1, $a3, $a1
+; LA32-NEXT:    mul.w $a0, $a0, $a2
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i64_45:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 45
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    ret
+  %b = mul i64 %a, 45
+  ret i64 %b
+}
+
 define i64 @mul_i64_49(i64 %a) {
 ; LA32-LABEL: mul_i64_49:
 ; LA32:       # %bb.0:
@@ -696,6 +836,25 @@
   ret i64 %b
 }
 
+define i64 @mul_i64_51(i64 %a) {
+; LA32-LABEL: mul_i64_51:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a2, $zero, 51
+; LA32-NEXT:    mul.w $a1, $a1, $a2
+; LA32-NEXT:    mulh.wu $a3, $a0, $a2
+; LA32-NEXT:    add.w $a1, $a3, $a1
+; LA32-NEXT:    mul.w $a0, $a0, $a2
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i64_51:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 51
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    ret
+  %b = mul i64 %a, 51
+  ret i64 %b
+}
+
 define i64 @mul_i64_69(i64 %a) {
 ; LA32-LABEL: mul_i64_69:
 ; LA32:       # %bb.0:
@@ -753,6 +912,25 @@
   ret i64 %b
 }
 
+define i64 @mul_i64_85(i64 %a) {
+; LA32-LABEL: mul_i64_85:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a2, $zero, 85
+; LA32-NEXT:    mul.w $a1, $a1, $a2
+; LA32-NEXT:    mulh.wu $a3, $a0, $a2
+; LA32-NEXT:    add.w $a1, $a3, $a1
+; LA32-NEXT:    mul.w $a0, $a0, $a2
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i64_85:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 85
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    ret
+  %b = mul i64 %a, 85
+  ret i64 %b
+}
+
 define i64 @mul_i64_137(i64 %a) {
 ; LA32-LABEL: mul_i64_137:
 ; LA32:       # %bb.0:
@@ -791,6 +969,25 @@
   ret i64 %b
 }
 
+define i64 @mul_i64_153(i64 %a) {
+; LA32-LABEL: mul_i64_153:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a2, $zero, 153
+; LA32-NEXT:    mul.w $a1, $a1, $a2
+; LA32-NEXT:    mulh.wu $a3, $a0, $a2
+; LA32-NEXT:    add.w $a1, $a3, $a1
+; LA32-NEXT:    mul.w $a0, $a0, $a2
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i64_153:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 153
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    ret
+  %b = mul i64 %a, 153
+  ret i64 %b
+}
+
 define i64 @mul_i64_273(i64 %a) {
 ; LA32-LABEL: mul_i64_273:
 ; LA32:       # %bb.0:
@@ -809,3 +1006,22 @@
   %b = mul i64 %a, 273
   ret i64 %b
 }
+
+define i64 @mul_i64_289(i64 %a) {
+; LA32-LABEL: mul_i64_289:
+; LA32:       # %bb.0:
+; LA32-NEXT:    ori $a2, $zero, 289
+; LA32-NEXT:    mul.w $a1, $a1, $a2
+; LA32-NEXT:    mulh.wu $a3, $a0, $a2
+; LA32-NEXT:    add.w $a1, $a3, $a1
+; LA32-NEXT:    mul.w $a0, $a0, $a2
+; LA32-NEXT:    ret
+;
+; LA64-LABEL: mul_i64_289:
+; LA64:       # %bb.0:
+; LA64-NEXT:    ori $a1, $zero, 289
+; LA64-NEXT:    mul.d $a0, $a0, $a1
+; LA64-NEXT:    ret
+  %b = mul i64 %a, 289
+  ret i64 %b
+}